Chemosphere最新文献_第4页

Co-occurrence of ionophore polyether antibiotics and pesticides in peri-urban horticultural streams: multi-matrix monitoring, partitioning, and risk assessment 城市周边园艺溪流中离子载体聚醚抗生素和农药的共存：多基质监测、分区和风险评估。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-10 DOI: 10.1016/j.chemosphere.2026.144861

M. Navarro , T.M. Mac Loughlin , L.L. Alonso , M. Ramos , K. Miglioranza , C. Apartin

Intensive horticulture and the reuse of poultry litter (PL) can introduce mixtures of pesticides and veterinary pharmaceuticals into adjacent waters. A multi-matrix study was conducted at eight stream sites in the Cinturón Hortícola Platense (Argentina) across three sampling campaigns. Surface water, suspended particulate matter (SPM), bottom sediments, and aquatic macrophytes were analyzed by LC-MS/MS. Target compounds included ionophore polyether antibiotics (IPAs), selected pesticides, avermectins and the fluoroquinolone enrofloxacin. Monensin was the most frequently detected IPA. Glyphosate and its metabolite AMPA were ubiquitous across matrices, while chlorpyrifos and its metabolite TCP were widespread in water and sediments. Prometryn and tebuconazole were consistently observed across campaigns, whereas avermectins and enrofloxacin were not detected. Macrophytes accumulated several target compounds, supporting their role as integrators of contamination. Pseudo-partition coefficients (water-sediment, water-SPM) indicated a preferential association of monensin, glyphosate, and AMPA with solid phases. Principal component analysis linked monensin with organic-matter and nutrient proxies, consistent with PL-driven runoff. A screening environmental risk assessment indicated very high risk for chlorpyrifos in water and sediment, and low risk for IPAs at observed levels. Findings highlight the complex contamination arising from horticultural practices that combine animal-derived soil amendments with pesticide applications. Sampling strategies should include transformation products and macrophyte biomonitoring, as aquatic plants can indicate agricultural contamination. The results provide actionable evidence to guide monitoring and mitigation efforts in peri-urban horticulture, emphasizing the importance of vegetated buffers, improved PL handling, and comprehensive surveillance that includes metabolites.

精耕细作的园艺和家禽垃圾的再利用会将农药和兽药的混合物引入邻近水域。在Cinturón Hortícola Platense（阿根廷）的八个河流地点进行了多矩阵研究，共进行了三次采样活动。采用LC-MS/MS对地表水、悬浮颗粒物（SPM）、底层沉积物和水生植物进行分析。目标化合物包括离子载体聚醚抗生素（IPAs）、选定的农药、阿维菌素和氟喹诺酮恩诺沙星。莫能菌素是最常检出的IPA。草甘膦及其代谢物AMPA在基质中普遍存在，毒死蜱及其代谢物TCP在水体和沉积物中广泛存在。Prometryn和tebuconazole在整个运动中都被观察到，而阿维菌素和恩诺沙星没有被检测到。大型植物积累了一些目标化合物，支持它们作为污染整合者的作用。伪分配系数（水-沉积物、水- spm）显示莫能菌素、草甘膦和AMPA与固相的优先关联。主成分分析将莫能菌素与有机质和养分代用物联系起来，与土壤驱动的径流相一致。一项筛选性环境风险评估表明，毒死蜱在水和沉积物中的风险非常高，而在观察到的水平下，IPAs的风险很低。研究结果强调了将动物源性土壤改良剂与农药应用相结合的园艺实践所产生的复杂污染。采样策略应包括转化产物和大型植物生物监测，因为水生植物可以指示农业污染。研究结果为指导城郊园艺的监测和缓解工作提供了可操作的证据，强调了植被缓冲、改进PL处理和包括代谢物在内的全面监测的重要性。

{"title":"Co-occurrence of ionophore polyether antibiotics and pesticides in peri-urban horticultural streams: multi-matrix monitoring, partitioning, and risk assessment","authors":"M. Navarro , T.M. Mac Loughlin , L.L. Alonso , M. Ramos , K. Miglioranza , C. Apartin","doi":"10.1016/j.chemosphere.2026.144861","DOIUrl":"10.1016/j.chemosphere.2026.144861","url":null,"abstract":"<div><div>Intensive horticulture and the reuse of poultry litter (PL) can introduce mixtures of pesticides and veterinary pharmaceuticals into adjacent waters. A multi-matrix study was conducted at eight stream sites in the Cinturón Hortícola Platense (Argentina) across three sampling campaigns. Surface water, suspended particulate matter (SPM), bottom sediments, and aquatic macrophytes were analyzed by LC-MS/MS. Target compounds included ionophore polyether antibiotics (IPAs), selected pesticides, avermectins and the fluoroquinolone enrofloxacin. Monensin was the most frequently detected IPA. Glyphosate and its metabolite AMPA were ubiquitous across matrices, while chlorpyrifos and its metabolite TCP were widespread in water and sediments. Prometryn and tebuconazole were consistently observed across campaigns, whereas avermectins and enrofloxacin were not detected. Macrophytes accumulated several target compounds, supporting their role as integrators of contamination. Pseudo-partition coefficients (water-sediment, water-SPM) indicated a preferential association of monensin, glyphosate, and AMPA with solid phases. Principal component analysis linked monensin with organic-matter and nutrient proxies, consistent with PL-driven runoff. A screening environmental risk assessment indicated very high risk for chlorpyrifos in water and sediment, and low risk for IPAs at observed levels. Findings highlight the complex contamination arising from horticultural practices that combine animal-derived soil amendments with pesticide applications. Sampling strategies should include transformation products and macrophyte biomonitoring, as aquatic plants can indicate agricultural contamination. The results provide actionable evidence to guide monitoring and mitigation efforts in peri-urban horticulture, emphasizing the importance of vegetated buffers, improved PL handling, and comprehensive surveillance that includes metabolites.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"396 ","pages":"Article 144861"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146168517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of tire and road wear particles in artificial water bodies in Japan 日本人工水体中轮胎和道路磨损颗粒的鉴定。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.1016/j.chemosphere.2026.144869

Kimleng Keang, Shuo Cheng, Snehal Wasnik, Haoge Zhang, Jeffrey S. Cross

Tire and road wear particles (TRWPs) are a major source of microplastic pollution in urban environments. While research has largely focused on natural aquatic systems, artificial urban water bodies in Japan remain understudied despite their high potential to accumulate these pollutants. This study provides a detailed evaluation of TRWPs in artificial water bodies across four major regions (Kinki, Chukyo, Kitakyushu/Fukuoka, and Sapporo) in Japan using microscopy, SEM-EDX, and Raman spectroscopy. TRWPs were characterized by distinctive morphologies, elemental signatures (Zn, S, Si, and C), and Raman spectral features, including carbon black and styrene-butadiene rubber (SBR) markers. Quantitative analysis revealed spatial variability, with TRWP concentrations ranging from 291.2 to 489.9 particles/L. The highest abundance was recorded in Sorakuen (489.9 particles/L), while the lowest was observed in Tsurami (291.2 particles/L). Raman spectra from sites like Tsuruma (Nagoya) and Maizuru (Fukuoka) indicated the presence of fresher TRWPs, whereas particles from Shonai (Nagoya) and Maruyama (Kyoto) exhibited signs of advanced weathering. SEM imaging further supported these findings, highlighting extensive surface degradation particularly in high-traffic locations. These artificial systems function both as semi-enclosed ecological habitats and as potential accumulation zones for TRWPs, where prolonged retention promotes particle buildup and transformation. While the findings indicate that such environments can retain substantial TRWP loads, further comparative research is needed to evaluate their relative role within broader urban aquatic systems.

轮胎和道路磨损颗粒（TRWPs）是城市环境中微塑料污染的主要来源。虽然研究主要集中在天然水生系统上，但日本的人工城市水体仍未得到充分研究，尽管它们积累这些污染物的潜力很大。本研究利用显微镜、SEM-EDX和拉曼光谱对日本四个主要地区（近畿、中京、北九州/福冈和札幌）人工水体中的TRWPs进行了详细评价。TRWPs具有独特的形态、元素特征（Zn、S、Si和C）和拉曼光谱特征，包括炭黑和丁苯橡胶（SBR）标记。定量分析表明，TRWP浓度在291.2 ~ 489.9颗粒/L之间存在空间差异。Sorakuen的丰度最高，为489.9个粒子/L，鹤上最低，为291.2个粒子/L。来自Tsuruma（名古屋）和Maizuru（福冈）等地点的拉曼光谱表明存在较新鲜的trwp，而来自Shonai（名古屋）和Maruyama（京都）的颗粒则显示出高级风化的迹象。扫描电镜成像进一步支持了这些发现，突出了广泛的表面退化，特别是在高流量位置。这些人工系统既可以作为半封闭的生态栖息地，也可以作为TRWPs的潜在积聚区，在那里，长时间的滞留促进了颗粒的积聚和转化。虽然研究结果表明，这些环境可以保留大量的TRWP负荷，但需要进一步的比较研究来评估它们在更广泛的城市水生系统中的相对作用。

{"title":"Identification of tire and road wear particles in artificial water bodies in Japan","authors":"Kimleng Keang, Shuo Cheng, Snehal Wasnik, Haoge Zhang, Jeffrey S. Cross","doi":"10.1016/j.chemosphere.2026.144869","DOIUrl":"10.1016/j.chemosphere.2026.144869","url":null,"abstract":"<div><div>Tire and road wear particles (TRWPs) are a major source of microplastic pollution in urban environments. While research has largely focused on natural aquatic systems, artificial urban water bodies in Japan remain understudied despite their high potential to accumulate these pollutants. This study provides a detailed evaluation of TRWPs in artificial water bodies across four major regions (Kinki, Chukyo, Kitakyushu/Fukuoka, and Sapporo) in Japan using microscopy, SEM-EDX, and Raman spectroscopy. TRWPs were characterized by distinctive morphologies, elemental signatures (Zn, S, Si, and C), and Raman spectral features, including carbon black and styrene-butadiene rubber (SBR) markers. Quantitative analysis revealed spatial variability, with TRWP concentrations ranging from 291.2 to 489.9 particles/L. The highest abundance was recorded in Sorakuen (489.9 particles/L), while the lowest was observed in Tsurami (291.2 particles/L). Raman spectra from sites like Tsuruma (Nagoya) and Maizuru (Fukuoka) indicated the presence of fresher TRWPs, whereas particles from Shonai (Nagoya) and Maruyama (Kyoto) exhibited signs of advanced weathering. SEM imaging further supported these findings, highlighting extensive surface degradation particularly in high-traffic locations. These artificial systems function both as semi-enclosed ecological habitats and as potential accumulation zones for TRWPs, where prolonged retention promotes particle buildup and transformation. While the findings indicate that such environments can retain substantial TRWP loads, further comparative research is needed to evaluate their relative role within broader urban aquatic systems.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144869"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to ‘Modelling and parameter estimation of diethyl phthalate partitioning behaviour on glass and aluminum surfaces’ [Chemosphere 285 (2021) 131414] “玻璃和铝表面邻苯二甲酸二乙酯分配行为的建模和参数估计”的勘误表[Chemosphere 285(2021) 131414]。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-09 DOI: 10.1016/j.chemosphere.2026.144843

Simoní Da Ros , Katherine Curran

引用次数: 0

Contamination of an Afro-tropical river with nicotine from tobacco farming and its implications for ecological and human health 一条非洲热带河流因烟草种植而受到尼古丁污染及其对生态和人类健康的影响。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.1016/j.chemosphere.2026.144876

Emmanuel Cishibanji , Elias Chirwa , Rodgers Makwinja , Benjamin N. Kondowe , Sébastien Baekelandt , Fabrice Muvundja , Godwell Nhamo , Bossissi Nkuba

Tobacco cultivation is associated with ecological and human health risks due to nicotine, an emerging aquatic contaminant. In tobacco-growing areas, nicotine can enter aquatic ecosystems through plant secretions and tobacco stalks used as organic fertilizer. Using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) extraction method and liquid chromatography-tandem mass spectrometry (LC-MS/MS), this study aimed to (i) quantify nicotine residues in the Bua River, which flows through a central tobacco-growing region in Malawi – the country with the highest proportion of arable land dedicated to tobacco farming globally – and (ii) assess ecological risks in water and sediment, as well as potential human health risks from contaminated fish. The highest geometric mean concentrations were detected in fish tissues, particularly Clarias gariepinus (10.29 ± 2.09 μg/kg) compared to Oreochromis shiranus (1.35 ± 6.79 μg/kg), sediment (0.93 ± 3.54 μg/kg), and surface water (0.67 ± 1.96 μg/L). Nicotine levels were associated with several water quality parameters. Findings revealed that nicotine residues occur at ecologically concerning levels, posing high ecological risks to freshwater invertebrates and fish populations. Although nicotine levels in fish muscle do not currently pose human health risks under prevailing consumption rates, cumulative exposure from tobacco farming activities may elevate risks. This study provides evidence of substantial ecological risks that may disrupt trophic balances and alter aquatic communities. It recommends regular monitoring to assess long-term impacts, enable timely ecological responses, and minimize cumulative risks.

由于尼古丁是一种新兴的水生污染物，烟草种植与生态和人类健康风险有关。在烟草种植区，尼古丁可以通过植物分泌物和作为有机肥的烟草秸秆进入水生生态系统。使用改进的QuEChERS（快速、简单、廉价、有效、耐用和安全）提取方法和液相色谱-串联质谱（LC-MS/MS），本研究旨在(i)量化流经马拉维中部烟草种植区的布阿河中的尼古丁残留，马拉维是全球烟草种植耕地比例最高的国家；（ii）评估水和沉积物中的生态风险。以及受污染鱼类对人类健康的潜在威胁。几何平均浓度最高的是鱼类组织，其中克拉尾鱼（Clarias gariepinus）为10.29±2.09 μg/kg，而石头鱼（Oreochromis shiranus）为1.35±6.79 μg/kg，沉积物为0.93±3.54 μg/kg，地表水为0.67±1.96 μg/L。尼古丁水平与几个水质参数有关。研究结果显示，尼古丁残留量已达到令人担忧的生态水平，对淡水无脊椎动物和鱼类种群构成高度的生态风险。虽然在目前的消费水平下，鱼肌肉中的尼古丁含量目前不会对人类健康构成风险，但烟草养殖活动的累积接触可能会增加风险。这项研究为可能破坏营养平衡和改变水生群落的重大生态风险提供了证据。报告建议定期监测，以评估长期影响，及时作出生态反应，并尽量减少累积风险。

{"title":"Contamination of an Afro-tropical river with nicotine from tobacco farming and its implications for ecological and human health","authors":"Emmanuel Cishibanji , Elias Chirwa , Rodgers Makwinja , Benjamin N. Kondowe , Sébastien Baekelandt , Fabrice Muvundja , Godwell Nhamo , Bossissi Nkuba","doi":"10.1016/j.chemosphere.2026.144876","DOIUrl":"10.1016/j.chemosphere.2026.144876","url":null,"abstract":"<div><div>Tobacco cultivation is associated with ecological and human health risks due to nicotine, an emerging aquatic contaminant. In tobacco-growing areas, nicotine can enter aquatic ecosystems through plant secretions and tobacco stalks used as organic fertilizer. Using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) extraction method and liquid chromatography-tandem mass spectrometry (LC-MS/MS), this study aimed to <em>(i)</em> quantify nicotine residues in the Bua River, which flows through a central tobacco-growing region in Malawi – the country with the highest proportion of arable land dedicated to tobacco farming globally – and <em>(ii)</em> assess ecological risks in water and sediment, as well as potential human health risks from contaminated fish. The highest geometric mean concentrations were detected in fish tissues, particularly <em>Clarias gariepinus</em> (10.29 ± 2.09 μg/kg) compared to <em>Oreochromis shiranus</em> (1.35 ± 6.79 μg/kg), sediment (0.93 ± 3.54 μg/kg), and surface water (0.67 ± 1.96 μg/L). Nicotine levels were associated with several water quality parameters. Findings revealed that nicotine residues occur at ecologically concerning levels, posing high ecological risks to freshwater invertebrates and fish populations. Although nicotine levels in fish muscle do not currently pose human health risks under prevailing consumption rates, cumulative exposure from tobacco farming activities may elevate risks. This study provides evidence of substantial ecological risks that may disrupt trophic balances and alter aquatic communities. It recommends regular monitoring to assess long-term impacts, enable timely ecological responses, and minimize cumulative risks.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144876"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive learning rate optimization in deep recurrent architectures for precision PM2.5 forecasting under climate variability 气候变率下PM2.5精确预测的深度循环架构自适应学习率优化。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.1016/j.chemosphere.2026.144875

Caner Erden

Accurate forecasting of fine particulate matter (PM_{2.5}) is critical for safeguarding public health; however, conventional deep learning models frequently encounter convergence instability when exposed to highly volatile meteorological inputs. This study evaluates advanced learning rate scheduling strategies to improve long short-term memory (LSTM) and gated recurrent unit (GRU) performance using Atlanta's 2023–2025 air quality and meteorological data. The research compares polynomial, piecewise constant, and cosine decay schedules, revealing architecture-specific sensitivities: the analysis identifies that LSTM achieved optimal stability with piecewise constant decay (MAE = 0.9255

μ g / m^{3}

), whereas GRU performed best under polynomial decay (MAE = 1.1092

μ g / m^{3}

). Although Cosine Decay reduces peak errors in isolated instances, it demonstrates insufficient robustness against stochastic gradient noise. The optimized framework yields exceptional predictive fidelity, with the GRU and LSTM models attaining R² values of 0.9495 and 0.9443, respectively. Beyond methodological advances, this study establishes a reliable computational baseline for site-specific temporal air quality monitoring, offering actionable insights into the interplay between anthropogenic emissions and climate-driven volatility. By supporting industrial emissions management and evidence-based policy, this study contributes to the broader goals of mitigating air pollution in a changing climate and advancing ecological co-governance.

准确预报细颗粒物（PM_{2.5}）对保障公众健康至关重要；然而，当暴露于高度不稳定的气象输入时，传统的深度学习模型经常遇到收敛不稳定性。本研究利用亚特兰大2023-2025年的空气质量和气象数据，评估了提高长短期记忆（LSTM）和门控循环单元（GRU）性能的先进学习率调度策略。该研究比较了多项式、分段常数和余弦衰减方案，揭示了体系结构特定的敏感性：分析发现，LSTM在分段常数衰减（MAE = 0.9255 μg/m3）下具有最佳稳定性，而GRU在多项式衰减（MAE = 1.1092 μg/m3）下具有最佳稳定性。虽然余弦衰减在孤立的情况下减少了峰值误差，但它对随机梯度噪声的鲁棒性不够。优化后的框架具有出色的预测保真度，GRU和LSTM模型的R2分别达到0.9495和0.9443。除了方法上的进步，本研究还为特定地点的时间空气质量监测建立了可靠的计算基线，为人为排放与气候驱动波动之间的相互作用提供了可行的见解。通过支持工业排放管理和基于证据的政策，本研究有助于在气候变化中缓解空气污染和推进生态共治的更广泛目标。

{"title":"Adaptive learning rate optimization in deep recurrent architectures for precision PM2.5 forecasting under climate variability","authors":"Caner Erden","doi":"10.1016/j.chemosphere.2026.144875","DOIUrl":"10.1016/j.chemosphere.2026.144875","url":null,"abstract":"<div><div>Accurate forecasting of fine particulate matter (PM_{2.5}) is critical for safeguarding public health; however, conventional deep learning models frequently encounter convergence instability when exposed to highly volatile meteorological inputs. This study evaluates advanced learning rate scheduling strategies to improve long short-term memory (LSTM) and gated recurrent unit (GRU) performance using Atlanta's 2023–2025 air quality and meteorological data. The research compares polynomial, piecewise constant, and cosine decay schedules, revealing architecture-specific sensitivities: the analysis identifies that LSTM achieved optimal stability with piecewise constant decay (MAE = 0.9255 <span><math><mrow><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mi>m</mi><mn>3</mn></msup></mrow></math></span>), whereas GRU performed best under polynomial decay (MAE = 1.1092 <span><math><mrow><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mi>m</mi><mn>3</mn></msup></mrow></math></span>). Although Cosine Decay reduces peak errors in isolated instances, it demonstrates insufficient robustness against stochastic gradient noise. The optimized framework yields exceptional predictive fidelity, with the GRU and LSTM models attaining R<sup>2</sup> values of 0.9495 and 0.9443, respectively. Beyond methodological advances, this study establishes a reliable computational baseline for site-specific temporal air quality monitoring, offering actionable insights into the interplay between anthropogenic emissions and climate-driven volatility. By supporting industrial emissions management and evidence-based policy, this study contributes to the broader goals of mitigating air pollution in a changing climate and advancing ecological co-governance.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144875"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146260411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced vitrification and selective partitioning strategies for sustainable high-level radioactive liquid waste management 可持续高放射性废液管理的先进玻璃化和选择性分区策略。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-26 DOI: 10.1016/j.chemosphere.2026.144858

Jayaprakasam Selvakumar , Gattu Suneel , Chetan Parkash Kaushik

Managing high-level radioactive liquid waste (HLW) from spent nuclear fuel reprocessing remains a significant challenge in the nuclear fuel cycle. Conventional vitrification into glass matrices for geological disposal, although technologically mature, represents a largely one-dimensional approach that permanently immobilizes radionuclides, including isotopes valuable for medical, industrial, and space applications. This review examines selective vitrification and strategic radionuclide recovery as an integrated framework for sustainable HLW management. The approach combines advanced vitrification technologies—such as Joule-heated ceramic melters, cold crucible induction melters, induction-heated metallic melters, and in-can melter—with targeted partitioning processes including UREX+, DIAMEX-SANEX, and extraction chromatography. These schemes achieve decontamination factors exceeding 10³ and enable waste loadings of 15-30 wt% in tailored glass and glass-ceramic waste forms. Selective recovery of key radionuclides offers significant reuse potential, including Sr-90 and Cs-137 for irradiation applications and Am-241 for radioisotope power systems. Importantly, removal of heat-generating nuclides before vitrification can reduce repository thermal loads by 30-40% and overall waste volumes by ∼25%. This strategy marks a shift from non-retrievable disposal to resource recovery, aligning HLW management with circular-economy principles and long-term sustainability goals.

乏核燃料后处理产生的高放射性废液的管理仍然是核燃料循环中的一个重大挑战。传统的玻璃化成玻璃基质用于地质处置，虽然技术成熟，但主要是一种一维的方法，可以永久固定放射性核素，包括对医疗、工业和空间应用有价值的同位素。本文审查了选择性玻璃化和战略性放射性核素回收作为可持续高放射性废物管理的综合框架。该方法结合了先进的玻璃化技术，如焦耳加热陶瓷熔体、冷坩埚感应熔体、感应加热金属熔体和罐内熔体，以及包括UREX+、DIAMEX-SANEX和萃取色谱在内的定向分配过程。这些方案实现了超过103的净化系数，并使定制玻璃和玻璃陶瓷废物形式的废物负荷达到15-30 wt%。关键放射性核素的选择性回收具有重要的再利用潜力，包括用于辐照应用的Sr-90和Cs-137以及用于放射性同位素电力系统的Am-241。重要的是，在玻璃化前去除产生热量的核素可以减少储存库热负荷30-40%，总废物量减少约25%。这一战略标志着从不可回收处置向资源回收的转变，使高铁管理与循环经济原则和长期可持续性目标保持一致。

{"title":"Advanced vitrification and selective partitioning strategies for sustainable high-level radioactive liquid waste management","authors":"Jayaprakasam Selvakumar , Gattu Suneel , Chetan Parkash Kaushik","doi":"10.1016/j.chemosphere.2026.144858","DOIUrl":"10.1016/j.chemosphere.2026.144858","url":null,"abstract":"<div><div>Managing high-level radioactive liquid waste (HLW) from spent nuclear fuel reprocessing remains a significant challenge in the nuclear fuel cycle. Conventional vitrification into glass matrices for geological disposal, although technologically mature, represents a largely one-dimensional approach that permanently immobilizes radionuclides, including isotopes valuable for medical, industrial, and space applications. This review examines selective vitrification and strategic radionuclide recovery as an integrated framework for sustainable HLW management. The approach combines advanced vitrification technologies—such as Joule-heated ceramic melters, cold crucible induction melters, induction-heated metallic melters, and in-can melter—with targeted partitioning processes including UREX+, DIAMEX-SANEX, and extraction chromatography. These schemes achieve decontamination factors exceeding 10<sup>3</sup> and enable waste loadings of 15-30 wt% in tailored glass and glass-ceramic waste forms. Selective recovery of key radionuclides offers significant reuse potential, including Sr-90 and Cs-137 for irradiation applications and Am-241 for radioisotope power systems. Importantly, removal of heat-generating nuclides before vitrification can reduce repository thermal loads by 30-40% and overall waste volumes by ∼25%. This strategy marks a shift from non-retrievable disposal to resource recovery, aligning HLW management with circular-economy principles and long-term sustainability goals.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"397 ","pages":"Article 144858"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147319199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Closed-loop recycling: Could Denmark produce clinker from end-of-life concrete at scale? 闭环回收：丹麦能否从废弃混凝土中大规模生产熟料？

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-03-01 Epub Date: 2026-02-13 DOI: 10.1016/j.chemosphere.2026.144844

Arvind Chauhan , Teklit Ambaye , Wolfgang Kunther , Ana Teresa Lima

Circular economy (CE), particularly closed-loop recycling, has been identified as a strategy to enhance the sustainability of the cement industry. The chemical composition of the raw meal – the raw materials used to produce cement – is a limiting factor in cement manufacturing, particularly for CE and end-of-life (EOL) concrete recycling. Cement closed-loop recycling entails retrieving ultrafine concrete waste particles (UFCWP, particle fraction between 0 and 0.25 mm) from EOL concrete using advanced recycling technologies that could replace clinker raw meal in cement clinker manufacturing. Utilizing a combined conceptual stoichiometry mass balance model with material flow analysis for the first time, this study demonstrates the chemical limitations of substituting raw materials with ultrafine EOL concrete in a closed-loop recycling process within the Danish clinker production. The main results indicate that a maximum of 11.76% UFCWP can be used to replace conventional raw meal in Danish cement clinker production, resulting in a 10% reduction in global warming potential compared to conventional cement clinker production. For this, we would require three times more EOL CEM I concrete in Denmark than is currently produced (approx 1.2 Mton). This study highlights the mismatch between current cement demand and EOL concrete for closed-loop recycling in Denmark.

循环经济（CE），特别是闭环回收，已被确定为提高水泥工业可持续性的战略。生料（用于生产水泥的原材料）的化学成分是水泥制造的一个限制因素，特别是对于CE和报废（EOL）混凝土回收。水泥闭环回收需要使用先进的回收技术从EOL混凝土中回收超细混凝土废料（UFCWP，颗粒分数在0和0.25 mm之间），可以替代水泥熟料生产中的熟料生料。本研究首次利用概念化学计量质量平衡模型和物料流分析相结合的方法，证明了在丹麦熟料生产的闭环回收过程中，用超细EOL混凝土替代原材料的化学局限性。主要结果表明，在丹麦水泥熟料生产中，UFCWP最多可替代传统生料11.76%，与传统水泥熟料生产相比，全球变暖潜能值降低10%。为此，我们在丹麦需要比目前生产的EOL CEM I混凝土多三倍（约120万吨）。本研究突出了当前水泥需求与丹麦闭环回收EOL混凝土之间的不匹配。

{"title":"Closed-loop recycling: Could Denmark produce clinker from end-of-life concrete at scale?","authors":"Arvind Chauhan , Teklit Ambaye , Wolfgang Kunther , Ana Teresa Lima","doi":"10.1016/j.chemosphere.2026.144844","DOIUrl":"10.1016/j.chemosphere.2026.144844","url":null,"abstract":"<div><div>Circular economy (CE), particularly closed-loop recycling, has been identified as a strategy to enhance the sustainability of the cement industry. The chemical composition of the raw meal – the raw materials used to produce cement – is a limiting factor in cement manufacturing, particularly for CE and end-of-life (EOL) concrete recycling. Cement closed-loop recycling entails retrieving ultrafine concrete waste particles (UFCWP, particle fraction between 0 and 0.25 mm) from EOL concrete using advanced recycling technologies that could replace clinker raw meal in cement clinker manufacturing. Utilizing a combined conceptual stoichiometry mass balance model with material flow analysis for the first time, this study demonstrates the chemical limitations of substituting raw materials with ultrafine EOL concrete in a closed-loop recycling process within the Danish clinker production. The main results indicate that a maximum of 11.76% UFCWP can be used to replace conventional raw meal in Danish cement clinker production, resulting in a 10% reduction in global warming potential compared to conventional cement clinker production. For this, we would require three times more EOL CEM I concrete in Denmark than is currently produced (approx 1.2 Mton). This study highlights the mismatch between current cement demand and EOL concrete for closed-loop recycling in Denmark.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"396 ","pages":"Article 144844"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drastic changes in carbon monoxide pollution in rural India (2000–2019) and its CMIP6 model future (2015–2100) projections 印度农村一氧化碳污染的剧烈变化（2000-2019）及其CMIP6模型未来（2015-2100）预测。

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-02-01 Epub Date: 2025-12-23 DOI: 10.1016/j.chemosphere.2025.144814

Mansi Pathak, Jayanarayanan Kuttippurath

Carbon Monoxide (CO) is a reactive gas that plays a crucial role in the atmospheric carbon cycle. It has significant implications for human health, manifesting in both short and long-term effects such as fatigue, headaches, nausea and confusion, as well as impacts on ecosystems and climate. Here, we investigate the long-term changes in CO levels, utilising data from ground-based, satellite, reanalysis, emission inventory and climate model projections for the period 2000–2019, in rural India. This investigation reveals that rural regions of Indo-Gangetic Plain (IGP), North East India (NEI) and Central India (CI) exhibit elevated CO levels ranging from 150 to 400 ppbv. The highest levels are observed during the months followed by agricultural waste burning (AWB) in January–March in rural IGP (200 ppbv) and NEI (275 ppbv), but the rural Hilly Regions (HR) maintain the lowest CO concentrations in India throughout the year. We find a reversal in CO trend from 2006 onwards, with a significant decrease of −1.25 ppbv/yr throughout rural India in 2006–2019. This decline in CO, despite the rise in emissions from all sources, except road transport, reveals its role in regulating the CO pollution. The engagement and enforcement of proper regulations (e.g. implementation of stringent Bharat Stage standards) also might have contributed to this reduction. Future projections across all Shared Socioeconomic Pathways (SSP) scenarios, with the exception of SSP3-7.0, indicate a substantial decrease in CO pollution in rural India by the end of 21st century. The decrease in CO levels in rural India signifies improvement in air quality resulting from government initiatives, including the Bharat Stage regulations, Pradhan Mantri Ujjwala Yojana and the promotion of agricultural mechanisation for in-situ management of crop residue. This study, therefore, reiterates the significance of policies and their prompt execution in regulating CO pollution to enhance air quality and safeguard public health and environment.

一氧化碳（CO）是一种活性气体，在大气碳循环中起着至关重要的作用。它对人类健康有重大影响，表现为短期和长期影响，如疲劳、头痛、恶心和精神错乱，以及对生态系统和气候的影响。本文利用2000-2019年期间印度农村地区的地面、卫星、再分析、排放清单和气候模型预测数据，研究了CO水平的长期变化。这项调查显示，印度-恒河平原（IGP）、印度东北部（NEI）和印度中部（CI）的农村地区CO水平升高，范围从150到400 ppbv。在1 - 3月农业废弃物焚烧（AWB）之后的几个月里，农村IGP （200 ppbv）和NEI （275 ppbv）的CO浓度最高，但农村丘陵地区（HR）全年保持印度最低的CO浓度。我们发现，自2006年以来，CO趋势发生了逆转，2006-2019年，整个印度农村的CO显著下降了-1.25 ppbv/年。尽管除公路运输外的所有来源的排放量都在增加，但CO的下降显示了其在调节CO污染方面的作用。适当法规的参与和执行（例如严格的巴拉特阶段标准的实施）也可能有助于减少这种情况。除SSP3-7.0情景外，所有共享社会经济路径（SSP）情景的未来预测表明，到21世纪末，印度农村的CO污染将大幅减少。印度农村CO水平的下降意味着空气质量的改善，这是政府举措的结果，包括巴拉特阶段条例、Pradhan Mantri Ujjwala Yojana和促进农业机械化以就地管理作物残留物。因此，这项研究重申，管制一氧化碳污染，以改善空气质素，保障公众健康和环境，必须尽快执行相关政策。

{"title":"Drastic changes in carbon monoxide pollution in rural India (2000–2019) and its CMIP6 model future (2015–2100) projections","authors":"Mansi Pathak, Jayanarayanan Kuttippurath","doi":"10.1016/j.chemosphere.2025.144814","DOIUrl":"10.1016/j.chemosphere.2025.144814","url":null,"abstract":"<div><div>Carbon Monoxide (CO) is a reactive gas that plays a crucial role in the atmospheric carbon cycle. It has significant implications for human health, manifesting in both short and long-term effects such as fatigue, headaches, nausea and confusion, as well as impacts on ecosystems and climate. Here, we investigate the long-term changes in CO levels, utilising data from ground-based, satellite, reanalysis, emission inventory and climate model projections for the period 2000–2019, in rural India. This investigation reveals that rural regions of Indo-Gangetic Plain (IGP), North East India (NEI) and Central India (CI) exhibit elevated CO levels ranging from 150 to 400 ppbv. The highest levels are observed during the months followed by agricultural waste burning (AWB) in January–March in rural IGP (200 ppbv) and NEI (275 ppbv), but the rural Hilly Regions (HR) maintain the lowest CO concentrations in India throughout the year. We find a reversal in CO trend from 2006 onwards, with a significant decrease of −1.25 ppbv/yr throughout rural India in 2006–2019. This decline in CO, despite the rise in emissions from all sources, except road transport, reveals its role in regulating the CO pollution. The engagement and enforcement of proper regulations (e.g. implementation of stringent Bharat Stage standards) also might have contributed to this reduction. Future projections across all Shared Socioeconomic Pathways (SSP) scenarios, with the exception of SSP3-7.0, indicate a substantial decrease in CO pollution in rural India by the end of 21st century. The decrease in CO levels in rural India signifies improvement in air quality resulting from government initiatives, including the Bharat Stage regulations, Pradhan Mantri Ujjwala Yojana and the promotion of agricultural mechanisation for in-situ management of crop residue. This study, therefore, reiterates the significance of policies and their prompt execution in regulating CO pollution to enhance air quality and safeguard public health and environment.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"394 ","pages":"Article 144814"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145829304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyphosphate-mediated heavy metal sequestration in non-genetically modified bacteria: mechanisms and biotechnological prospects 非转基因细菌中多磷酸盐介导的重金属隔离：机制和生物技术前景

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-02-01 Epub Date: 2026-01-09 DOI: 10.1016/j.chemosphere.2026.144828

Eduard Villagrasa , Neus Ferrer-Miralles , Alejandro Sánchez-Chardi , Antonio Solé

Human activities are increasing the bioavailability of metals and metalloids, creating serious environmental and health risks. Specifically, there is significant ecotoxicological interest in metalloid (arsenic (As)) and six heavy metals (HMs; cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg), and zinc (Zn)) due to their worldwide distribution in all habitats and highly toxic effects on terrestrial and aquatic biota. Understanding toxicity and persistence of HMs is essential for developing effective bioremediation strategies. Bacteria and archaea have evolved diverse cellular adaptations to resist HM toxicity, employing ATP-dependent (active) and ATP-independent (passive) substrate-specific mechanisms. Among them, bioaccumulation via polyphosphate (polyP) inclusions (intracellular) and/or granules (extracellular) has emerged as a central detoxification strategy. Cation-polyP complexes within bacterial structures facilitate metal immobilization, offering a viable approach for reducing HM bioavailability and cellular toxicity. Here, we synthesize the current knowledge on non-genetically modified HM-resistant bacteria, emphasizing bioaccumulation mechanisms mediated by polyP. To date, the role of polyP-mediated bioaccumulation in wild-type bacterial systems remains underexplored and lacks a comprehensive synthesis in the literature. Specifically, we explore (i) the primary bacterial strategies for HM sequestration, (ii) the chronological development of a global understanding of bacterial HM polyP-mediated bioaccumulation, and (iii) emerging biotechnological applications and future perspectives for implementing this strategy in contaminated environments. In contrast to earlier reviews, this work focuses on wild-type, non-genetically modified bacteria and emphasizes the role of polyP-mediated HM bioaccumulation as a resistance mechanism in natural habitats, which can be used for biotechnological applications in resource recovery and HM bioremediation.

人类活动正在增加金属和类金属的生物利用度，造成严重的环境和健康风险。具体来说，由于类金属（砷（As））和六种重金属（HMs；镉（Cd），铬（Cr），铜（Cu），铅（Pb），汞（Hg）和锌（Zn））在所有栖息地的全球分布和对陆地和水生生物群的高毒性作用，因此具有重要的生态毒理学兴趣。了解HMs的毒性和持久性对于制定有效的生物修复策略至关重要。细菌和古细菌已经进化出多种细胞适应性来抵抗HM毒性，采用atp依赖（主动）和atp独立（被动）的底物特异性机制。其中，通过多磷酸盐（polyP）包涵体（细胞内）和/或颗粒（细胞外）的生物积累已成为一种主要的解毒策略。细菌结构中的阳离子- polyp复合物有助于金属固定化，为降低HM的生物利用度和细胞毒性提供了可行的方法。在此，我们综合了目前关于非转基因hm耐药细菌的知识，强调了polyP介导的生物积累机制。迄今为止，polyp介导的生物积累在野生型细菌系统中的作用仍未得到充分探索，文献中缺乏全面的综合。具体来说，我们探讨了(i) HM隔离的主要细菌策略，（ii）细菌HM poly介导的生物积累的全球理解的时间顺序发展，以及（iii）在污染环境中实施该策略的新兴生物技术应用和未来前景。与之前的研究相比，本研究将重点放在野生型非转基因细菌上，并强调poly介导的HM生物积累作为自然生境中抗性机制的作用，可用于生物技术在资源恢复和HM生物修复中的应用。

{"title":"Polyphosphate-mediated heavy metal sequestration in non-genetically modified bacteria: mechanisms and biotechnological prospects","authors":"Eduard Villagrasa , Neus Ferrer-Miralles , Alejandro Sánchez-Chardi , Antonio Solé","doi":"10.1016/j.chemosphere.2026.144828","DOIUrl":"10.1016/j.chemosphere.2026.144828","url":null,"abstract":"<div><div>Human activities are increasing the bioavailability of metals and metalloids, creating serious environmental and health risks. Specifically, there is significant ecotoxicological interest in metalloid (arsenic (As)) and six heavy metals (HMs; cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg), and zinc (Zn)) due to their worldwide distribution in all habitats and highly toxic effects on terrestrial and aquatic biota. Understanding toxicity and persistence of HMs is essential for developing effective bioremediation strategies. Bacteria and archaea have evolved diverse cellular adaptations to resist HM toxicity, employing ATP-dependent (active) and ATP-independent (passive) substrate-specific mechanisms. Among them, bioaccumulation via polyphosphate (polyP) inclusions (intracellular) and/or granules (extracellular) has emerged as a central detoxification strategy. Cation-polyP complexes within bacterial structures facilitate metal immobilization, offering a viable approach for reducing HM bioavailability and cellular toxicity. Here, we synthesize the current knowledge on non-genetically modified HM-resistant bacteria, emphasizing bioaccumulation mechanisms mediated by polyP. To date, the role of polyP-mediated bioaccumulation in wild-type bacterial systems remains underexplored and lacks a comprehensive synthesis in the literature. Specifically, we explore (i) the primary bacterial strategies for HM sequestration, (ii) the chronological development of a global understanding of bacterial HM polyP-mediated bioaccumulation, and (iii) emerging biotechnological applications and future perspectives for implementing this strategy in contaminated environments. In contrast to earlier reviews, this work focuses on wild-type, non-genetically modified bacteria and emphasizes the role of polyP-mediated HM bioaccumulation as a resistance mechanism in natural habitats, which can be used for biotechnological applications in resource recovery and HM bioremediation<strong>.</strong></div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"395 ","pages":"Article 144828"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable membranes from industrial waste valorization for microbial electrochemical desalination systems 用于微生物电化学脱盐系统的工业废水可持续膜

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere

Pub Date : 2026-02-01 Epub Date: 2025-12-26 DOI: 10.1016/j.chemosphere.2025.144808

Himanshi Sen , Monika Sogani , Sovik Das , Karishma Maheshwari

Freshwater scarcity and the environmental burden of reverse osmosis (RO) reject streams demand sustainable desalination alternatives. Microbial desalination cells (MDCs), integrated with bioelectrochemical processes, have emerged as eco-friendly platforms for simultaneous wastewater treatment, ion removal, and energy recovery. However, their reliance on costly, ion-exchange membranes limits scalability. This review critically examines low-cost waste-valorized membranes fabricated from agricultural residues, polymeric wastes, ceramics, and industrial byproducts as green substitutes for conventional membranes in MDCs. This review critically discusses the past progress of low-cost waste additives to multifunctional, biofunctionalized membranes with superior ion transport, antifouling, and self-cleaning capabilities. The major focus of the paper is on strategies such as graphene oxide doping, enzyme immobilization, and magnetic biochar integration that can enhance performance, conductivity, and fouling resistance, alongside reducing cost and carbon dioxide footprint. Based on the in-depth analysis, a comprehensive roadmap is proposed encompassing feedstock standardization, green fabrication, novel manufacturing techniques including digital process optimization, techno-economic analysis, integrated MDC-RO systems, and end-of-life recycling, aimed at enabling scalable, decentralized, and cost-effective desalination solutions. Further, the integration of waste-derived membranes into MDC-RO hybrids is presented as a viable pathway to increase water recovery, reduce fouling, and lower energy demand. This work underscores the potential of waste-valorized membranes as next-generation sustainable solutions for water-energy nexus challenges.

淡水短缺和反渗透（RO）的环境负担拒绝溪流需要可持续的海水淡化替代品。与生物电化学过程相结合的微生物海水淡化电池（MDCs）已成为同时处理废水、去除离子和回收能量的环保平台。然而，它们对昂贵的离子交换膜的依赖限制了可扩展性。本文综述了由农业残留物、聚合物废物、陶瓷和工业副产品制成的低成本废物增值膜作为MDCs中传统膜的绿色替代品。本文综述了低成本废物添加剂在多功能、生物功能化膜上的研究进展，这些膜具有优异的离子传输、防污和自清洁能力。该论文的主要重点是诸如氧化石墨烯掺杂、酶固定化和磁性生物炭整合等策略，这些策略可以提高性能、导电性和抗污垢性，同时降低成本和二氧化碳足迹。在深入分析的基础上，提出了一个全面的路线图，包括原料标准化、绿色制造、新型制造技术（包括数字过程优化）、技术经济分析、集成的MDC-RO系统和寿命结束回收，旨在实现可扩展、分散和具有成本效益的海水淡化解决方案。此外，将废物来源的膜整合到MDC-RO混合物中是提高水回收率、减少污染和降低能源需求的可行途径。这项工作强调了废物增值膜作为下一代可持续解决水-能源关系挑战的潜力。

{"title":"Sustainable membranes from industrial waste valorization for microbial electrochemical desalination systems","authors":"Himanshi Sen , Monika Sogani , Sovik Das , Karishma Maheshwari","doi":"10.1016/j.chemosphere.2025.144808","DOIUrl":"10.1016/j.chemosphere.2025.144808","url":null,"abstract":"<div><div>Freshwater scarcity and the environmental burden of reverse osmosis (RO) reject streams demand sustainable desalination alternatives. Microbial desalination cells (MDCs), integrated with bioelectrochemical processes, have emerged as eco-friendly platforms for simultaneous wastewater treatment, ion removal, and energy recovery. However, their reliance on costly, ion-exchange membranes limits scalability. This review critically examines low-cost waste-valorized membranes fabricated from agricultural residues, polymeric wastes, ceramics, and industrial byproducts as green substitutes for conventional membranes in MDCs. This review critically discusses the past progress of low-cost waste additives to multifunctional, biofunctionalized membranes with superior ion transport, antifouling, and self-cleaning capabilities. The major focus of the paper is on strategies such as graphene oxide doping, enzyme immobilization, and magnetic biochar integration that can enhance performance, conductivity, and fouling resistance, alongside reducing cost and carbon dioxide footprint. Based on the in-depth analysis, a comprehensive roadmap is proposed encompassing feedstock standardization, green fabrication, novel manufacturing techniques including digital process optimization, techno-economic analysis, integrated MDC-RO systems, and end-of-life recycling, aimed at enabling scalable, decentralized, and cost-effective desalination solutions. Further, the integration of waste-derived membranes into MDC-RO hybrids is presented as a viable pathway to increase water recovery, reduce fouling, and lower energy demand. This work underscores the potential of waste-valorized membranes as next-generation sustainable solutions for water-energy nexus challenges.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"394 ","pages":"Article 144808"},"PeriodicalIF":8.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0