Biomass & Bioenergy最新文献_第6页

Anaerobic digestion of acidic waste mash via light-assisted & hemin-acclimated inoculum: A case study of cassava alcohol stillage 通过光辅助和血红素驯化的接种物厌氧消化酸性废醪：木薯酒精蒸馏的案例研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-26 DOI: 10.1016/j.biombioe.2026.109171

Yang Wang , Dong Guo , Junlin Ji , Zhihan Luo , Zhicheng Zhu , Ruirui Hou , Kai Wu , Hong Yang , Jinhe Jiang , Fang Yin

Cassava alcohol stillage is high-strength organic wastewater generated during bioethanol production. Its high organic load and propensity for volatile fatty acid accumulation during anaerobic digestion (AD) can inhibit its degradation efficiency significantly. This study introduced porphyrin-mediated inoculum acclimation under light to investigate the synergy between photosynthetic and methanogenic communities in AD. In the present study, preliminary experiments were conducted by supplementing the AD system with varying concentrations of hemin (2.5–7.5 g/L), using cassava alcohol stillage as the substrate. Methane (CH₄) production enhancement was limited, ranging from 4.66% to 17.49%. Under 5 g/L hemin combined with acclimated inoculum, methane production increased by > 120%, total organic carbon degradation rate improved by 20.94%, acidification lag phase was shortened by 80%, and the digestion cycle was reduced from 28 d to 14–16 d. Following introduction of the inoculum acclimated under light in the presence of hemin over a four-month period, the methanogenic community was enriched substantially at the end of fermentation. The relative abundances of Methanobacteriota—the core methanogenic archaeal phylum—reached 5.92%, 10.12%, and 4.11% in the 2.5 g/L, 5 g/L, and 7.5 g/L treatment groups, respectively, exceeding the control group value of 2.69%. Furthermore, the proportion of persistent microbial taxa increased from 69.57% to approximately 82%, indicating selective enrichment and stabilization of the core microbiome responsible for AD through the combined effects of light and hemin. The results confirm that pretreatment with light and hemin effectively enhances the AD of cassava alcohol stillage.

木薯酒精蒸馏是生物乙醇生产过程中产生的高强度有机废水。它的高有机负荷和在厌氧消化过程中挥发性脂肪酸积累的倾向显著抑制了其降解效率。本研究引入卟啉介导的接种驯化，探讨AD光合群落和产甲烷群落之间的协同作用。本研究以木薯酒精蒸馏液为底物，在AD系统中添加不同浓度的hemin （2.5-7.5 g/L）进行初步实验。甲烷（CH4）产量提高幅度有限，在4.66% ~ 17.49%之间。在5 g/L血红素与驯化菌群结合的条件下，产甲烷量提高了120%，总有机碳降解率提高了20.94%，酸化滞后期缩短了80%，消化周期从28 d缩短到14-16 d。在血红素存在的情况下，在光照下驯化的菌群经过4个月的培养后，发酵末期产甲烷菌群得到了显著的富集。2.5 g/L、5 g/L和7.5 g/L处理组产甲烷菌门（核心产甲烷古细菌门）的相对丰度分别达到5.92%、10.12%和4.11%，均超过对照组的2.69%。此外，持久性微生物类群的比例从69.57%增加到约82%，表明在光和血红蛋白的共同作用下，AD核心微生物群的选择性富集和稳定。结果表明，光和血红素预处理能有效提高木薯酒精的AD。

{"title":"Anaerobic digestion of acidic waste mash via light-assisted & hemin-acclimated inoculum: A case study of cassava alcohol stillage","authors":"Yang Wang , Dong Guo , Junlin Ji , Zhihan Luo , Zhicheng Zhu , Ruirui Hou , Kai Wu , Hong Yang , Jinhe Jiang , Fang Yin","doi":"10.1016/j.biombioe.2026.109171","DOIUrl":"10.1016/j.biombioe.2026.109171","url":null,"abstract":"<div><div>Cassava alcohol stillage is high-strength organic wastewater generated during bioethanol production. Its high organic load and propensity for volatile fatty acid accumulation during anaerobic digestion (AD) can inhibit its degradation efficiency significantly. This study introduced porphyrin-mediated inoculum acclimation under light to investigate the synergy between photosynthetic and methanogenic communities in AD. In the present study, preliminary experiments were conducted by supplementing the AD system with varying concentrations of hemin (2.5–7.5 g/L), using cassava alcohol stillage as the substrate. Methane (CH<sub>4</sub>) production enhancement was limited, ranging from 4.66% to 17.49%. Under 5 g/L hemin combined with acclimated inoculum, methane production increased by > 120%, total organic carbon degradation rate improved by 20.94%, acidification lag phase was shortened by 80%, and the digestion cycle was reduced from 28 d to 14–16 d. Following introduction of the inoculum acclimated under light in the presence of hemin over a four-month period, the methanogenic community was enriched substantially at the end of fermentation. The relative abundances of <em>Methanobacteriota</em>—the core methanogenic archaeal phylum—reached 5.92%, 10.12%, and 4.11% in the 2.5 g/L, 5 g/L, and 7.5 g/L treatment groups, respectively, exceeding the control group value of 2.69%. Furthermore, the proportion of persistent microbial taxa increased from 69.57% to approximately 82%, indicating selective enrichment and stabilization of the core microbiome responsible for AD through the combined effects of light and hemin. The results confirm that pretreatment with light and hemin effectively enhances the AD of cassava alcohol stillage.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109171"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The implication of continuous thermophilic composting for the resource recovery from slaughterhouse waste 连续嗜热堆肥对屠宰场废物资源回收的意义

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-02 DOI: 10.1016/j.biombioe.2026.109213

Muhammad Waqas , Abdul-Sattar Nizami , Mohammad Rehan , Hesam Kamyab , Osman Atilla Arikan , Cosimo Magazzino

This study implies the continuous thermophilic composting (CTC) in the context of sustainable management and resource recovery from slaughterhouse waste (SHW). Various temperature trials, including 35 °C, 45 °C, 55 °C, and 65 °C, were applied using a batch mode in-vessel composting system to determine its impact on the composting of SHW. It was observed that thermophilic temperature trials (55 °C and 65 °C) significantly enhanced the pH of the compost matrix, promoting both degradation and mineralization processes. The highest degree of OM degradation (56.59%) was recorded at 65 °C, followed by 55 °C (53.52%). Similarly, in comparison to the initial ash content (13.76%), the maximum ash content (54.19%) was observed at 65 °C after 40 days of incubation. Substantial variations were also observed for NH₄⁺-N and NO₃⁻-N concentration, where the highest NH₄⁺-N (334.55 mg kg⁻¹) and NO₃⁻-N (157.63 mg kg⁻¹) concentrations were observed at 65 °C, followed by 55 °C. Compost stability was achieved within 40 to 45 days in the trial incubated at 65 °C, and remained unchanged when the temperature was maintained at 25 °C for the last 10 days of experimentation. Therefore, compared to 55 °C, composting at 65 °C with uniform turning to ensure proper air supply can achieve compost stability in 40 to 45 days, with compost quality according to international compost quality guidelines. However, future research is required to explore the enlargement of the scale of CTC, microbial analysis in the final compost, nitrogen losses in the form of ammonia emissions and novel additives to reduce nitrogen losses and enhance the quality of SHW composting.

本研究表明，在可持续管理和屠宰废物资源回收的背景下，持续嗜热堆肥（CTC）是可行的。采用间歇式容器堆肥系统进行了35°C、45°C、55°C和65°C的不同温度试验，以确定其对SHW堆肥的影响。研究发现，55°C和65°C的嗜热温度显著提高了堆肥基质的pH值，促进了降解和矿化过程。65°C时OM降解程度最高（56.59%），其次是55°C（53.52%）。同样，与初始灰分含量（13.76%）相比，在65°C孵育40天后灰分含量最高（54.19%）。NH4+-N和NO3−-N浓度在65℃时最高（334.55 mg kg - 1）， NO3−-N浓度最高（157.63 mg kg - 1），其次是55℃。在65℃的条件下，堆肥在40 ~ 45天内达到稳定，在25℃的条件下，堆肥在最后10天保持稳定。因此，与55℃相比，在65℃下进行堆肥，均匀翻转，保证适当的空气供应，可以在40 - 45天内实现堆肥稳定性，堆肥质量符合国际堆肥质量准则。然而，未来的研究需要探索CTC规模的扩大、最终堆肥中的微生物分析、氨排放形式的氮损失以及新型添加剂，以减少氮损失，提高SHW堆肥的质量。

{"title":"The implication of continuous thermophilic composting for the resource recovery from slaughterhouse waste","authors":"Muhammad Waqas , Abdul-Sattar Nizami , Mohammad Rehan , Hesam Kamyab , Osman Atilla Arikan , Cosimo Magazzino","doi":"10.1016/j.biombioe.2026.109213","DOIUrl":"10.1016/j.biombioe.2026.109213","url":null,"abstract":"<div><div>This study implies the continuous thermophilic composting (CTC) in the context of sustainable management and resource recovery from slaughterhouse waste (SHW). Various temperature trials, including 35 °C, 45 °C, 55 °C, and 65 °C, were applied using a batch mode in-vessel composting system to determine its impact on the composting of SHW. It was observed that thermophilic temperature trials (55 °C and 65 °C) significantly enhanced the pH of the compost matrix, promoting both degradation and mineralization processes. The highest degree of OM degradation (56.59%) was recorded at 65 °C, followed by 55 °C (53.52%). Similarly, in comparison to the initial ash content (13.76%), the maximum ash content (54.19%) was observed at 65 °C after 40 days of incubation. Substantial variations were also observed for NH<sub>4</sub><sup>+</sup>-N and NO<sub>3</sub><sup>−</sup>-N concentration, where the highest NH<sub>4</sub><sup>+</sup>-N (334.55 mg kg<sup>−1</sup>) and NO<sub>3</sub><sup>−</sup>-N (157.63 mg kg<sup>−1</sup>) concentrations were observed at 65 °C, followed by 55 °C. Compost stability was achieved within 40 to 45 days in the trial incubated at 65 °C, and remained unchanged when the temperature was maintained at 25 °C for the last 10 days of experimentation. Therefore, compared to 55 °C, composting at 65 °C with uniform turning to ensure proper air supply can achieve compost stability in 40 to 45 days, with compost quality according to international compost quality guidelines. However, future research is required to explore the enlargement of the scale of CTC, microbial analysis in the final compost, nitrogen losses in the form of ammonia emissions and novel additives to reduce nitrogen losses and enhance the quality of SHW composting.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109213"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interchangeability of various agricultural residues in small-scale boilers based on their inorganic composition: combustion similarities, environmental impact and ash properties 基于无机成分的各种农业残留物在小型锅炉中的互换性：燃烧相似性、环境影响和灰分特性

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-05 DOI: 10.1016/j.biombioe.2026.109227

Tereza Zlevorová , Jakub Lachman , Antonín Kintl , Julie Sobotková , Martin Lisý , Marek Baláš

Agricultural processing leaves behind many residues that could be further utilized, for example for heating. Among currently unused crop residues are those of Melilotus albus, Medicago sativa, Medicago lupulina, Sinapis alba, Hordeum vulgare and Trifolium incarnatum. Various samples of these plants were pelletized for the purposes of this study. All pellets were subsequently thoroughly analyzed and then combusted in a 25 kW boiler. Several similarities in their combustion behavior were observed: no slagging, high PM emissions (due to high K and Cl content), high NO_x emissions and the production of soft, powdery ash rich in nutrients. The ash elemental composition of the raw fuels plotted in an SCK ternary diagram indicated such behavior was likely to occur. This method could thus be utilized by boiler operators when looking for possible fuel replacement or supplementation. A widely used biofuel of similar inorganic composition, in this case sunflower husks, was used to successfully confirm this hypothesis. The use of fertilizers on fodder crops increases the environmental impact of their subsequent combustion, however, the high retention rates of essential plant nutrients in the produced ash make it a valuable commodity in circular economy.

农业加工留下的许多残留物可以进一步利用，例如用于加热。目前未被利用的作物残茬有木犀草、紫花苜蓿、紫花苜蓿、白Sinapis、Hordeum vulgare和Trifolium incarnatum。为了本研究的目的，这些植物的各种样品被制成颗粒。随后对所有颗粒进行彻底分析，然后在25千瓦的锅炉中燃烧。他们的燃烧行为有几个相似之处：没有结渣，高PM排放（由于高K和Cl含量），高NOx排放和生产富含营养的软粉状灰。在SCK三元图中绘制的原料燃料的灰分元素组成表明这种行为很可能发生。因此，在寻找可能的燃料替换或补充时，锅炉操作员可以使用这种方法。一种广泛使用的类似无机成分的生物燃料，在这种情况下，向日葵壳，被用来成功地证实了这一假设。在饲料作物上使用肥料增加了其随后燃烧对环境的影响，然而，所生产的灰中基本植物营养物质的高保留率使其成为循环经济中的宝贵商品。

{"title":"Interchangeability of various agricultural residues in small-scale boilers based on their inorganic composition: combustion similarities, environmental impact and ash properties","authors":"Tereza Zlevorová , Jakub Lachman , Antonín Kintl , Julie Sobotková , Martin Lisý , Marek Baláš","doi":"10.1016/j.biombioe.2026.109227","DOIUrl":"10.1016/j.biombioe.2026.109227","url":null,"abstract":"<div><div>Agricultural processing leaves behind many residues that could be further utilized, for example for heating. Among currently unused crop residues are those of <em>Melilotus albus</em>, <em>Medicago sativa</em>, <em>Medicago lupulina</em>, <em>Sinapis alba</em>, <em>Hordeum vulgare</em> and <em>Trifolium incarnatum</em>. Various samples of these plants were pelletized for the purposes of this study. All pellets were subsequently thoroughly analyzed and then combusted in a 25 kW boiler. Several similarities in their combustion behavior were observed: no slagging, high PM emissions (due to high K and Cl content), high NO<sub>x</sub> emissions and the production of soft, powdery ash rich in nutrients. The ash elemental composition of the raw fuels plotted in an SCK ternary diagram indicated such behavior was likely to occur. This method could thus be utilized by boiler operators when looking for possible fuel replacement or supplementation. A widely used biofuel of similar inorganic composition, in this case sunflower husks, was used to successfully confirm this hypothesis. The use of fertilizers on fodder crops increases the environmental impact of their subsequent combustion, however, the high retention rates of essential plant nutrients in the produced ash make it a valuable commodity in circular economy.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109227"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147359679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing lipid accumulation in marine microalgae for sustainable biofuel applications: A review of Nannochloropsis and Tetraselmis 促进海洋微藻脂质积累用于可持续生物燃料应用：纳米绿藻和四鳃藻综述

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-05 DOI: 10.1016/j.biombioe.2026.109210

Linh Doan , Anh Q.V. Tran , Quynh K.L. Ong , Khanh G. Huynh , Khoa Tran , Thanh Khoa Phung

Marine microalgae are increasingly recognized as promising feedstocks for sustainable biofuel production due to their rapid growth rates, high lipid productivity, and ability to utilize saline water resources. Among them, Nannochloropsis and Tetraselmis have attracted particular attention because of their robust cultivation characteristics, favorable fatty acid profiles, and adaptability to large-scale systems. This review critically examines lipid biosynthesis pathways in these two genera and systematically analyzes environmental, metabolic, and cultivation strategies employed to enhance lipid accumulation. Key approaches, including nutrient limitation, carbon supplementation, light and salinity modulation, and metabolic engineering, are evaluated in terms of lipid yield, fatty acid composition, and process feasibility. A focused comparison between Nannochloropsis and Tetraselmis is provided to highlight their respective advantages, limitations, and application scenarios in biofuel production. In addition, integration with wastewater treatment, co-cultivation systems, and techno-economic considerations are discussed to assess industrial viability. Unlike previous generalized reviews, this work emphasizes the linkage between biochemical mechanisms, enhancement strategies, and scalable biofuel applications. Finally, current technological bottlenecks and future research directions are outlined to support the transition of marine microalgal lipid production from laboratory studies to sustainable industrial deployment.

海洋微藻因其生长速度快、脂质产量高和利用咸水资源的能力而越来越被认为是可持续生物燃料生产的有前途的原料。其中，Nannochloropsis和Tetraselmis因其强大的栽培特性、有利的脂肪酸谱和对大规模系统的适应性而受到特别关注。本文综述了这两个属的脂质生物合成途径，并系统地分析了促进脂质积累的环境、代谢和培养策略。关键方法，包括营养限制，碳补充，光和盐度调节，以及代谢工程，在脂质产量，脂肪酸组成和工艺可行性方面进行了评估。本文重点比较了纳米绿藻和四鳃草的优势、局限性和在生物燃料生产中的应用前景。此外，还讨论了与废水处理、共培养系统和技术经济考虑的整合，以评估工业可行性。与以往的综述不同，这项工作强调了生物化学机制、增强策略和可扩展的生物燃料应用之间的联系。最后，概述了当前的技术瓶颈和未来的研究方向，以支持海洋微藻脂质生产从实验室研究过渡到可持续的工业部署。

{"title":"Enhancing lipid accumulation in marine microalgae for sustainable biofuel applications: A review of Nannochloropsis and Tetraselmis","authors":"Linh Doan , Anh Q.V. Tran , Quynh K.L. Ong , Khanh G. Huynh , Khoa Tran , Thanh Khoa Phung","doi":"10.1016/j.biombioe.2026.109210","DOIUrl":"10.1016/j.biombioe.2026.109210","url":null,"abstract":"<div><div>Marine microalgae are increasingly recognized as promising feedstocks for sustainable biofuel production due to their rapid growth rates, high lipid productivity, and ability to utilize saline water resources. Among them, <em>Nannochloropsis</em> and <em>Tetraselmis</em> have attracted particular attention because of their robust cultivation characteristics, favorable fatty acid profiles, and adaptability to large-scale systems. This review critically examines lipid biosynthesis pathways in these two genera and systematically analyzes environmental, metabolic, and cultivation strategies employed to enhance lipid accumulation. Key approaches, including nutrient limitation, carbon supplementation, light and salinity modulation, and metabolic engineering, are evaluated in terms of lipid yield, fatty acid composition, and process feasibility. A focused comparison between <em>Nannochloropsis</em> and <em>Tetraselmis</em> is provided to highlight their respective advantages, limitations, and application scenarios in biofuel production. In addition, integration with wastewater treatment, co-cultivation systems, and techno-economic considerations are discussed to assess industrial viability. Unlike previous generalized reviews, this work emphasizes the linkage between biochemical mechanisms, enhancement strategies, and scalable biofuel applications. Finally, current technological bottlenecks and future research directions are outlined to support the transition of marine microalgal lipid production from laboratory studies to sustainable industrial deployment.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109210"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147359681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Systematic analysis of babassu coconut shell combustion using TG, FTIR, activation energy, and prediction of gas emissions 利用热重、红外光谱、活化能和气体排放预测对巴巴苏椰壳燃烧进行系统分析

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-03 DOI: 10.1016/j.biombioe.2026.109196

Antonia Mabrysa T. Gadelha , Maria Alexsandra de S. Rios , Glauber Cruz , Samuel L.S. Medeiros , Graziela C.A. Zaninetti , Juliana T.de C. Leite

In this study, the thermal behavior of babassu coconut shell (BCS) combustion was analyzed through a systematic approach. The analysis was based on data from thermogravimetric analysis, Fourier-transform infrared spectroscopy, molar ratios (H/C and O/C), and prediction of the combustion gases. The isoconversional methods of Friedman, Ozawa–Flynn–Wall (OFW), and Kissinger–Akahira–Sunose (KAS) were utilized to evaluate the kinetics in the conversion range of 0.1 to 0.9. The molar ratio of hydrogen to carbon was found to range from approximately 1.3 to 1.8, with the ratio of oxygen to carbon ranging from 0.45 to 0.9. The FTIR spectra revealed functional groups consistent with lignocellulosic biomass. The mean activation energies were determined to be 133 kJ mol⁻¹ (Friedman), 180 kJ mol⁻¹ (KAS), and 190 kJ mol⁻¹ (OFW). The percentage of combustion gases was 21.05% for CO₂, 0.012% for NO, and 0% for SO₂. The results of E and the prediction of emitted gases are consistent with those observed for other lignocellulosic biomasses. The findings indicate the viability of BCS for utilization in combustion processes.

本研究采用系统的方法分析了巴巴苏椰壳（babassu coconut shell， BCS）燃烧的热行为。分析基于热重分析、傅里叶变换红外光谱、摩尔比（H/C和O/C）以及燃烧气体的预测数据。采用Friedman、Ozawa-Flynn-Wall （OFW）和Kissinger-Akahira-Sunose （KAS）等转化方法对0.1 ~ 0.9转化范围内的动力学进行了评价。氢与碳的摩尔比大约在1.3到1.8之间，氧与碳的摩尔比在0.45到0.9之间。FTIR光谱显示与木质纤维素生物质相一致的官能团。平均活化能分别为133 kJ mol−1 （Friedman）、180 kJ mol−1 （KAS）和190 kJ mol−1 （OFW）。燃烧气体中CO2占21.05%，NO占0.012%，SO2占0%。E的结果和排放气体的预测与其他木质纤维素生物质的观测结果一致。研究结果表明BCS在燃烧过程中应用的可行性。

{"title":"Systematic analysis of babassu coconut shell combustion using TG, FTIR, activation energy, and prediction of gas emissions","authors":"Antonia Mabrysa T. Gadelha , Maria Alexsandra de S. Rios , Glauber Cruz , Samuel L.S. Medeiros , Graziela C.A. Zaninetti , Juliana T.de C. Leite","doi":"10.1016/j.biombioe.2026.109196","DOIUrl":"10.1016/j.biombioe.2026.109196","url":null,"abstract":"<div><div>In this study, the thermal behavior of babassu coconut shell (BCS) combustion was analyzed through a systematic approach. The analysis was based on data from thermogravimetric analysis, Fourier-transform infrared spectroscopy, molar ratios (H/C and O/C), and prediction of the combustion gases. The isoconversional methods of Friedman, Ozawa–Flynn–Wall (OFW), and Kissinger–Akahira–Sunose (KAS) were utilized to evaluate the kinetics in the conversion range of 0.1 to 0.9. The molar ratio of hydrogen to carbon was found to range from approximately 1.3 to 1.8, with the ratio of oxygen to carbon ranging from 0.45 to 0.9. The FTIR spectra revealed functional groups consistent with lignocellulosic biomass. The mean activation energies were determined to be 133 kJ mol<sup>−1</sup> (Friedman), 180 kJ mol<sup>−1</sup> (KAS), and 190 kJ mol<sup>−1</sup> (OFW). The percentage of combustion gases was 21.05% for CO<sub>2</sub>, 0.012% for NO, and 0% for SO<sub>2</sub>. The results of E and the prediction of emitted gases are consistent with those observed for other lignocellulosic biomasses. The findings indicate the viability of BCS for utilization in combustion processes.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109196"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy efficiency in chemo-mechanical pretreatment of oil palm biomass: Sequence analysis and process optimization for enhanced bioethanol production 油棕生物质化学机械预处理的能源效率：增强生物乙醇生产的序列分析和工艺优化

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-02 DOI: 10.1016/j.biombioe.2026.109203

Yitong Niu , Kamoldeen Abiodun Ajijolakewu , Chee Keong Lee , Cheu Peng Leh

Pretreatment of biomass to enhance enzymatic hydrolysis typically incurs additional energy inputs and associated costs in bioethanol production. This study evaluated the energy consumption and performance of two chemo-mechanical sequences—refining before chemical treatment (RBCT) and refining after chemical treatment (RACT)—for improving enzymatic saccharification of oil palm empty fruit bunches (OPEFB). On the basis of initial untreated OPEFB dry mass, RACT reduced the specific pretreatment energy requirement to 30.92 kWh·kg⁻¹ compared with 43.65 kWh·kg⁻¹ for RBCT, while achieving a higher glucose yield (41.4%) and sugar recovery (79.7%). Although RBCT and RACT showed only minor differences in fibre morphology and bulk composition, RACT delivered superior energy-normalized saccharification performance and is therefore more cost-effective within the defined laboratory energy boundary. In addition, the effects of NaOH concentration, temperature, and reaction time on energy consumption and fermentation efficiency were evaluated. Excessive pretreatment severity did not improve fermentation performance, whereas the mildest alkaline conditions achieved the most favourable balance between energy input and bioconversion outcome.

预处理生物质以增强酶解通常会在生物乙醇生产中产生额外的能量投入和相关成本。本研究评估了两种化学-机械流程——化学处理前精炼（RBCT）和化学处理后精炼（RACT）——改善油棕空果串（OPEFB）酶促糖化的能耗和性能。在初始未经处理的OPEFB干质量的基础上，RACT将预处理的比能量需求降低至30.92 kWh·kg - 1，而RBCT的比能量需求为43.65 kWh·kg - 1，同时获得更高的葡萄糖收率（41.4%）和糖回收率（79.7%）。尽管RBCT和RACT在纤维形态和体积组成上只有微小的差异，但RACT具有优越的能量归一化糖化性能，因此在确定的实验室能量边界内更具成本效益。此外，还考察了NaOH浓度、温度和反应时间对能量消耗和发酵效率的影响。过度的预处理强度并不能改善发酵性能，而最温和的碱性条件在能量输入和生物转化结果之间达到了最有利的平衡。

{"title":"Energy efficiency in chemo-mechanical pretreatment of oil palm biomass: Sequence analysis and process optimization for enhanced bioethanol production","authors":"Yitong Niu , Kamoldeen Abiodun Ajijolakewu , Chee Keong Lee , Cheu Peng Leh","doi":"10.1016/j.biombioe.2026.109203","DOIUrl":"10.1016/j.biombioe.2026.109203","url":null,"abstract":"<div><div>Pretreatment of biomass to enhance enzymatic hydrolysis typically incurs additional energy inputs and associated costs in bioethanol production. This study evaluated the energy consumption and performance of two chemo-mechanical sequences—refining before chemical treatment (RBCT) and refining after chemical treatment (RACT)—for improving enzymatic saccharification of oil palm empty fruit bunches (OPEFB). On the basis of initial untreated OPEFB dry mass, RACT reduced the specific pretreatment energy requirement to 30.92 kWh·kg<sup>−1</sup> compared with 43.65 kWh·kg<sup>−1</sup> for RBCT, while achieving a higher glucose yield (41.4%) and sugar recovery (79.7%). Although RBCT and RACT showed only minor differences in fibre morphology and bulk composition, RACT delivered superior energy-normalized saccharification performance and is therefore more cost-effective within the defined laboratory energy boundary. In addition, the effects of NaOH concentration, temperature, and reaction time on energy consumption and fermentation efficiency were evaluated. Excessive pretreatment severity did not improve fermentation performance, whereas the mildest alkaline conditions achieved the most favourable balance between energy input and bioconversion outcome.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109203"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrogen production through biomass gasification in bubbling fluidized bed: A meta-review of key parameters and performance data 鼓泡流化床生物质气化制氢：关键参数和性能数据的元综述

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-02 DOI: 10.1016/j.biombioe.2026.109145

Rene Lesme Jaén , Olasunkanmi Opeoluwa Adeoye , Electo Eduardo Silva Lora , Albert Ratner , Rubenildo Vieira Andrade , Luis Roberto de Mello e Pinto , Diego Mauricio Yepes Maya , Leonardo Peña Pupo

Biomass gasification is a promising pathway for sustainable hydrogen production, but the vast and varied results in the report on hydrogen content in syngas from the literature hinder process optimization. This study addresses this through a rigorous meta-review, applying a PRISMA methodology and statistical framework to a dataset of 257 unique points from selected studies on bubbling fluidized bed gasifiers between 1996 and 2025. The study quantitatively synthesizes the complex, multi-dimensional parameter space, moving beyond qualitative summaries. Using k-means clustering, heterogeneous feedstocks were classified into distinct biomass categories based on their elemental ratios. Analysis of Covariance (ANCOVA), Response Surface Methodology (RSM), and Random Forest algorithms were employed to model variable effects, identify optimal conditions, and rank their relative importance. Results show steam is the superior gasifying agent. Sensitivity analysis revealed that catalyst category is the most influential variable (importance score = 0.58), followed by temperature and steam-to-biomass ratio. The models identified optimal conditions, predicting an average hydrogen content of 71% for a biomass category with H/C and O/C range of 1.23-1.52 and 0.52-0.75, respectively, using a metal catalyst with CaO. These findings showed that catalyst selection, particularly in sorption-enhanced reforming systems, for maximizing hydrogen yield and advancing efficient biomass-to-hydrogen conversion.

生物质气化是一种很有前途的可持续制氢途径，但文献中关于合成气中氢含量的报告中大量不同的结果阻碍了工艺优化。本研究通过严格的元综述解决了这一问题，将PRISMA方法和统计框架应用于1996年至2025年间泡泡流化床气化炉选定研究的257个独特点的数据集。该研究定量地综合了复杂的多维参数空间，超越了定性的总结。采用k-means聚类方法，将非均质原料根据其元素比例划分为不同的生物量类别。采用协方差分析（ANCOVA）、响应面法（RSM）和随机森林算法对变量效应进行建模，确定最佳条件，并对其相对重要性进行排序。结果表明，蒸汽是较好的气化剂。敏感性分析显示，催化剂类别是影响最大的变量（重要性得分= 0.58），其次是温度和蒸汽生物质比。该模型确定了最佳条件，预测在含CaO的金属催化剂下，H/C和O/C范围分别为1.23-1.52和0.52-0.75的生物质类别中，平均氢含量为71%。这些发现表明，催化剂的选择，特别是在吸附增强重整系统中，可以最大限度地提高氢产量，促进高效的生物质制氢转化。

{"title":"Hydrogen production through biomass gasification in bubbling fluidized bed: A meta-review of key parameters and performance data","authors":"Rene Lesme Jaén , Olasunkanmi Opeoluwa Adeoye , Electo Eduardo Silva Lora , Albert Ratner , Rubenildo Vieira Andrade , Luis Roberto de Mello e Pinto , Diego Mauricio Yepes Maya , Leonardo Peña Pupo","doi":"10.1016/j.biombioe.2026.109145","DOIUrl":"10.1016/j.biombioe.2026.109145","url":null,"abstract":"<div><div>Biomass gasification is a promising pathway for sustainable hydrogen production, but the vast and varied results in the report on hydrogen content in syngas from the literature hinder process optimization. This study addresses this through a rigorous meta-review, applying a PRISMA methodology and statistical framework to a dataset of 257 unique points from selected studies on bubbling fluidized bed gasifiers between 1996 and 2025. The study quantitatively synthesizes the complex, multi-dimensional parameter space, moving beyond qualitative summaries. Using k-means clustering, heterogeneous feedstocks were classified into distinct biomass categories based on their elemental ratios. Analysis of Covariance (ANCOVA), Response Surface Methodology (RSM), and Random Forest algorithms were employed to model variable effects, identify optimal conditions, and rank their relative importance. Results show steam is the superior gasifying agent. Sensitivity analysis revealed that catalyst category is the most influential variable (importance score = 0.58), followed by temperature and steam-to-biomass ratio. The models identified optimal conditions, predicting an average hydrogen content of 71% for a biomass category with H/C and O/C range of 1.23-1.52 and 0.52-0.75, respectively, using a metal catalyst with CaO. These findings showed that catalyst selection, particularly in sorption-enhanced reforming systems, for maximizing hydrogen yield and advancing efficient biomass-to-hydrogen conversion.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109145"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interface-engineered CuBi2O4/biomass-derived activated carbon composites for supercapacitors 超级电容器用CuBi2O4/生物质活性炭复合材料界面工程研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-07 DOI: 10.1016/j.biombioe.2026.109223

J. Venkatesan , J. Preethi Rency Fathima , J. Bosco Franklin , A. Padmanaban , A. Kumaresan , S. John Sundaram , P. Maadeswaran , Kasinathan Kaviyarasu

In the present study, a co-precipitation method was used to synthesize CuBi₂O₄ nanoflakes (NFs), and a CuBi₂O₄/biomass-derived activated carbon (AC) composite was prepared via sonication and investigated as a promising supercapacitor electrode material. Despite the intrinsic redox activity of CuBi₂O₄, its practical application is limited by low electrical conductivity and restricted surface area. To address these challenges, a porous AC matrix was introduced to enhance the electrochemical performance. Electrochemical measurements, including cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD), revealed that the CuBi₂O₄/AC composite exhibited a significantly enhanced specific capacitance of 228 F gg⁻¹ at 5 mV s⁻¹ and 170 F g⁻¹ at 1 A g⁻¹, compared to 131 F g⁻¹ and 105 F g⁻¹ for pristine CuBi₂O₄. Electrochemical impedance spectroscopy (EIS) analysis indicated a lower charge-transfer resistance. These findings suggest that the CuBi₂O₄/AC composite is a promising candidate for sustainable supercapacitor electrode applications with improved electrochemical performance.

本研究采用共沉淀法合成CuBi2O4纳米片（NFs），并通过超声法制备CuBi2O4/生物质活性炭（AC）复合材料，研究其作为超级电容器电极材料的前景。尽管CuBi2O4具有固有的氧化还原活性，但其实际应用受到低电导率和有限表面积的限制。为了解决这些问题，研究人员引入了多孔交流基质来提高电化学性能。电化学测量（包括循环伏安法（CV）和恒流充放电法（GCD））表明，CuBi2O4/AC复合材料在5 mV s−1下的比电容为228 F g−1，在1 a g−1下的比电容为170 F g−1，而原始CuBi2O4的比电容为131 F g−1和105 F g−1。电化学阻抗谱（EIS）分析表明其电荷转移电阻较低。这些发现表明，CuBi2O4/AC复合材料是一种具有改善电化学性能的可持续超级电容器电极应用的有希望的候选者。

{"title":"Interface-engineered CuBi2O4/biomass-derived activated carbon composites for supercapacitors","authors":"J. Venkatesan , J. Preethi Rency Fathima , J. Bosco Franklin , A. Padmanaban , A. Kumaresan , S. John Sundaram , P. Maadeswaran , Kasinathan Kaviyarasu","doi":"10.1016/j.biombioe.2026.109223","DOIUrl":"10.1016/j.biombioe.2026.109223","url":null,"abstract":"<div><div>In the present study, a co-precipitation method was used to synthesize CuBi<sub>2</sub>O<sub>4</sub> nanoflakes (NFs), and a CuBi<sub>2</sub>O<sub>4</sub>/biomass-derived activated carbon (AC) composite was prepared via sonication and investigated as a promising supercapacitor electrode material. Despite the intrinsic redox activity of CuBi<sub>2</sub>O<sub>4</sub>, its practical application is limited by low electrical conductivity and restricted surface area. To address these challenges, a porous AC matrix was introduced to enhance the electrochemical performance. Electrochemical measurements, including cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD), revealed that the CuBi<sub>2</sub>O<sub>4</sub>/AC composite exhibited a significantly enhanced specific capacitance of 228 F gg<sup>−1</sup> at 5 mV s<sup>−1</sup> and 170 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, compared to 131 F g<sup>−1</sup> and 105 F g<sup>−1</sup> for pristine CuBi<sub>2</sub>O<sub>4</sub>. Electrochemical impedance spectroscopy (EIS) analysis indicated a lower charge-transfer resistance. These findings suggest that the CuBi<sub>2</sub>O<sub>4</sub>/AC composite is a promising candidate for sustainable supercapacitor electrode applications with improved electrochemical performance.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109223"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147387620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A robust machine learning framework for predicting the higher heating value of poultry litter using proximate analysis 一个鲁棒的机器学习框架，用于使用近似分析预测家禽产仔的较高热值

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-22 DOI: 10.1016/j.biombioe.2026.109153

Beytullah Eren , Süleyman Uzun , Serkan Ozdemir

Accurate estimation of the higher heating value (HHV) of poultry litter is critical for its valorization as a renewable energy feedstock. However, the heterogeneity of poultry litter and data scarcity pose challenges for predictive modeling. In this study, a robust machine learning framework was developed to predict HHV using dry-basis proximate analysis parameters (volatile matter, fixed carbon, and ash). Unlike previous studies that rely on standard datasets, this work introduces a systematic comparison of four modeling scenarios to isolate the effects of data augmentation and hyperparameter optimization. Gaussian noise–based augmentation was formulated to expand the training space, while GridSearch cross-validation optimized model parameters. Five algorithms (KNN, RF, Extra Trees, LGBM, XGBoost) were evaluated and compared against a Multiple Linear Regression (MLR) baseline. Results indicated that models on the original dataset suffered from overfitting (Test R² < 0.50) and failed to significantly outperform the MLR baseline (R² = 0.42). However, data augmentation significantly boosted generalization. Crucially, evaluation was performed on a non-augmented, held-out test set to ensure real-world reliability. The optimized Extra Trees (ET) model achieved the best performance (Test R² > 0.89, RMSE = 0.80 MJ/kg), outperforming the MLR baseline (R² = 0.64) and other ML models. Feature importance and SHAP interaction analysis confirmed that ash content is the dominant inhibitor of energy density, aligning with thermochemical principles. The proposed framework offers a rapid, low-cost alternative to expensive elemental analysis for industrial energy assessment.

准确估计家禽粪便的高热值（HHV）对其作为可再生能源原料的价值至关重要。然而，家禽产仔的异质性和数据的稀缺性给预测建模带来了挑战。在这项研究中，开发了一个强大的机器学习框架，使用干基近似分析参数（挥发物、固定碳和灰分）来预测HHV。与以往依赖标准数据集的研究不同，这项工作引入了四种建模方案的系统比较，以隔离数据增强和超参数优化的影响。采用基于高斯噪声的增强方法扩展训练空间，GridSearch交叉验证优化模型参数。五种算法（KNN， RF, Extra Trees， LGBM, XGBoost）被评估并与多元线性回归（MLR）基线进行比较。结果表明，原始数据集上的模型存在过拟合（检验R2 <； 0.50），未能显著优于MLR基线（R2 = 0.42）。然而，数据增强显著提高了泛化。至关重要的是，评估是在一个非扩充的、持久的测试集上进行的，以确保真实世界的可靠性。优化后的Extra Trees （ET）模型获得了最佳的性能（检验R2 >； 0.89, RMSE = 0.80 MJ/kg），优于MLR基线（R2 = 0.64）和其他ML模型。特征重要性和SHAP相互作用分析证实，灰分含量是能量密度的主要抑制因子，符合热化学原理。提出的框架为工业能源评估提供了一种快速、低成本的替代方案，以取代昂贵的元素分析。

{"title":"A robust machine learning framework for predicting the higher heating value of poultry litter using proximate analysis","authors":"Beytullah Eren , Süleyman Uzun , Serkan Ozdemir","doi":"10.1016/j.biombioe.2026.109153","DOIUrl":"10.1016/j.biombioe.2026.109153","url":null,"abstract":"<div><div>Accurate estimation of the higher heating value (HHV) of poultry litter is critical for its valorization as a renewable energy feedstock. However, the heterogeneity of poultry litter and data scarcity pose challenges for predictive modeling. In this study, a robust machine learning framework was developed to predict HHV using dry-basis proximate analysis parameters (volatile matter, fixed carbon, and ash). Unlike previous studies that rely on standard datasets, this work introduces a systematic comparison of four modeling scenarios to isolate the effects of data augmentation and hyperparameter optimization. Gaussian noise–based augmentation was formulated to expand the training space, while GridSearch cross-validation optimized model parameters. Five algorithms (KNN, RF, Extra Trees, LGBM, XGBoost) were evaluated and compared against a Multiple Linear Regression (MLR) baseline. Results indicated that models on the original dataset suffered from overfitting (Test R<sup>2</sup> < 0.50) and failed to significantly outperform the MLR baseline (R<sup>2</sup> = 0.42). However, data augmentation significantly boosted generalization. Crucially, evaluation was performed on a non-augmented, held-out test set to ensure real-world reliability. The optimized Extra Trees (ET) model achieved the best performance (Test R<sup>2</sup> > 0.89, RMSE = 0.80 MJ/kg), outperforming the MLR baseline (R<sup>2</sup> = 0.64) and other ML models. Feature importance and SHAP interaction analysis confirmed that ash content is the dominant inhibitor of energy density, aligning with thermochemical principles. The proposed framework offers a rapid, low-cost alternative to expensive elemental analysis for industrial energy assessment.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109153"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146777822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A systematic review of synergistic effects of additives on organic waste composting 添加剂对有机废物堆肥增效作用的系统综述

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-22 DOI: 10.1016/j.biombioe.2026.109156

Shubham More, Ashootosh Mandpe

Mounting volumes of biomass waste globally necessitate valorization strategies that recover energy and nutrients while mitigating greenhouse gas emissions. Composting is an essential method; however, most optimization efforts have focused on single additives, and as a result, the potential benefits of combined additive strategies remain largely underexplored. In this review we fill this critical gap, by systematically analyzing 84 studies (2015–2025) across diverse waste substrates to evaluate how combinations of physical, chemical, biological, and conductive additives affect composting performance beyond individual additive effects. We found that strategic multi-additive combinations significantly accelerated decomposition, enhanced humification, improved nutrient (NPK) retention by ∼30-46 %, and reduced gaseous gas emission relative to single-additive approaches. Combined additive strategies such as co-applying biochar with wood vinegar reduced methane and ammonia emissions by ∼63 % and ∼36 %, respectively, compared to biochar alone, while adding zeolite (10 %) further shortened the thermophilic phase and curtailed emissions by over 50 %. Integrating nitrification inhibitors with acidifying amendments or introducing microbial inoculants alongside structural additives achieved 81–88 % reductions in nitrous oxide emissions. These synergistic effects are attributed to complementary mechanisms, including improved electron transfer capacity (15–28 % increase), enhanced substrate bioavailability (20–35 % faster degradation), pH buffering, increased aeration, and microbial niche diversification. Future research priorities include field-scale validation across climate zones, long-term soil health assessment, mechanistic modeling integrating multi-omics data, and techno-economic feasibility under uncertainty. Overall, rational additive combinations can make composting faster, lower-emission, and resource-efficient, supporting circular economy goals and climate mitigation commitments under SDG 12 and the Paris Agreement.

在全球范围内，生物质废弃物的数量不断增加，因此有必要采取增值战略，在减少温室气体排放的同时回收能源和营养物质。堆肥是一种必不可少的方法；然而，大多数优化工作都集中在单一添加剂上，因此，组合添加剂策略的潜在优势在很大程度上仍未得到充分探索。在这篇综述中，我们填补了这一关键空白，通过系统分析84项研究（2015-2025），研究了不同的废物基质，以评估物理、化学、生物和导电添加剂的组合如何影响堆肥性能，而不仅仅是单个添加剂的影响。我们发现，与单一添加剂相比，策略性的多添加剂组合显著加速了分解，增强了腐殖质化，提高了养分（NPK）保留约30- 46%，并减少了气体排放。与单独使用生物炭相比，联合使用生物炭和木醋等添加剂策略分别减少了约63%和约36%的甲烷和氨排放，而添加沸石（10%）进一步缩短了亲热期，减少了50%以上的排放。将硝化抑制剂与酸化改进剂相结合，或将微生物接种剂与结构添加剂一起引入，可以减少81 - 88%的氧化亚氮排放。这些协同效应归因于互补机制，包括提高电子转移能力（提高15 - 28%），提高底物生物利用度（降解速度提高20 - 35%），pH缓冲，增加通气和微生物生态位多样化。未来的研究重点包括跨气候带的田间规模验证、长期土壤健康评估、整合多组学数据的机制建模以及不确定条件下的技术经济可行性。总体而言，合理的添加剂组合可以使堆肥更快、排放更低、资源更高效，从而支持可持续发展目标12和《巴黎协定》下的循环经济目标和气候减缓承诺。

{"title":"A systematic review of synergistic effects of additives on organic waste composting","authors":"Shubham More, Ashootosh Mandpe","doi":"10.1016/j.biombioe.2026.109156","DOIUrl":"10.1016/j.biombioe.2026.109156","url":null,"abstract":"<div><div>Mounting volumes of biomass waste globally necessitate valorization strategies that recover energy and nutrients while mitigating greenhouse gas emissions. Composting is an essential method; however, most optimization efforts have focused on single additives, and as a result, the potential benefits of combined additive strategies remain largely underexplored. In this review we fill this critical gap, by systematically analyzing 84 studies (2015–2025) across diverse waste substrates to evaluate how combinations of physical, chemical, biological, and conductive additives affect composting performance beyond individual additive effects. We found that strategic multi-additive combinations significantly accelerated decomposition, enhanced humification, improved nutrient (NPK) retention by ∼30-46 %, and reduced gaseous gas emission relative to single-additive approaches. Combined additive strategies such as co-applying biochar with wood vinegar reduced methane and ammonia emissions by ∼63 % and ∼36 %, respectively, compared to biochar alone, while adding zeolite (10 %) further shortened the thermophilic phase and curtailed emissions by over 50 %. Integrating nitrification inhibitors with acidifying amendments or introducing microbial inoculants alongside structural additives achieved 81–88 % reductions in nitrous oxide emissions. These synergistic effects are attributed to complementary mechanisms, including improved electron transfer capacity (15–28 % increase), enhanced substrate bioavailability (20–35 % faster degradation), pH buffering, increased aeration, and microbial niche diversification. Future research priorities include field-scale validation across climate zones, long-term soil health assessment, mechanistic modeling integrating multi-omics data, and techno-economic feasibility under uncertainty. Overall, rational additive combinations can make composting faster, lower-emission, and resource-efficient, supporting circular economy goals and climate mitigation commitments under SDG 12 and the Paris Agreement.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"211 ","pages":"Article 109156"},"PeriodicalIF":5.8,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146777824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0