Process Safety and Environmental Protection最新文献_第8页

Co-scheduling of a renewable-driven gas-electricity system integrated with hydrogen storage and network topology optimization: A novel risk-aware uncertainty management framework 集成储氢和网络拓扑优化的可再生驱动气电系统协同调度：一种新型风险感知不确定性管理框架

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-12 DOI: 10.1016/j.psep.2026.108421

Theyab R. Alsenani

The co-scheduling of integrated gas–electricity systems (IGESs) has become increasingly important due to the growing penetration of gas-fired power plants and wind generation. However, uncertainties in key operational parameters (namely wind generation and electricity/gas demands) along with the associated risks, pose significant challenges to the reliable and economic operation of IGESs. Uncertainties refer to forecast errors in these parameters, while risks arise from the undesirable operational conditions created by such deviations. To address these challenges, a novel hybrid co-scheduling framework integrating information gap decision theory (IGDT) and stochastic programming is proposed. Because stochastic programming is inherently risk-neutral, the p-robust approach is incorporated to explicitly control risk associated with wind and electrical load uncertainties by minimizing relative regret (worst-case cost). Meanwhile, the IGDT method adopts a risk-averse strategy to maximize the tolerable uncertainty radius of gas demand and generate conservative yet reliable operational decisions. To enhance IGES flexibility, the framework incorporates emerging technologies: on the electricity side, a hydrogen storage system and network topology optimization are employed to facilitate wind power integration; on the gas side, a gas storage system and pipeline line-pack capability are considered to secure gas supply. The proposed framework is tested on an IEEE benchmark IGES. Simulation results demonstrate that the coordinated use of emerging technologies reduces the total operational cost, alleviates line congestion, and lowers the locational marginal electricity price. Furthermore, the proposed hybrid model improves system robustness against uncertainties with a small increase in total cost.

由于燃气电厂和风力发电的日益普及，综合气电系统（IGESs）的协同调度变得越来越重要。然而，关键运行参数（即风力发电和电力/天然气需求）的不确定性以及相关风险，对IGESs的可靠和经济运行构成了重大挑战。不确定性是指这些参数的预测误差，而风险来自于这些偏差所造成的不良操作条件。为了解决这些问题，提出了一种将信息差距决策理论与随机规划相结合的混合协同调度框架。由于随机规划本质上是风险中性的，因此p-鲁棒方法通过最小化相对后悔（最坏情况成本）来明确控制与风和电力负载不确定性相关的风险。同时，IGDT方法采用风险规避策略，使天然气需求的可容忍不确定性半径最大化，产生保守但可靠的操作决策。为了增强IGES的灵活性，该框架结合了新兴技术：在电力方面，采用储氢系统和网络拓扑优化来促进风电集成；在天然气方面，为了确保天然气供应，需要考虑储气系统和管线组合能力。该框架在IEEE基准IGES上进行了测试。仿真结果表明，新兴技术的协同使用降低了总运行成本，缓解了线路拥堵，降低了区位边际电价。此外，所提出的混合模型提高了系统对不确定性的鲁棒性，且总成本增加很小。

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引用次数: 0

Q-Tube-assisted synthesis of an indole-based inhibitor with enhanced corrosion protection performance for carbon steel in 15% HCl medium q -管辅助合成一种在15% HCl介质中增强碳钢防腐性能的吲哚基缓蚀剂

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-11 DOI: 10.1016/j.psep.2026.108418

Aisha H. Al-Moubaraki , Wafaa A. Alharthi , Azza A. Al-Ghamdi , Sameera M. Mousally , Abdelkarim Chaouiki

A novel indole-based compound, (E)-2-(1H-indole-3-carbonyl)-3-((4-nitrophenyl)amino)acrylonitrile (ICNA), was synthesized through an energy-efficient Q-Tube high-pressure protocol and evaluated as a corrosion inhibitor for carbon steel in 15% hydrochloric acid (HCl). Structural identity was confirmed by Fourier-transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance spectroscopy (¹H NMR). Corrosion performance was assessed using weight-loss (WL), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) techniques, while surface morphology and composition were examined by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and FT-IR analyses of the adsorbed film. ICNA achieved an inhibition efficiency of 98.64% at 7.5 × 10⁻⁴ M and 30°C, with efficiency increasing with concentration and slightly decreasing with temperature. Time-dependent WL measurements further showed that ICNA maintains high inhibition efficiency during prolonged immersion (up to 6 h), confirming the stability of the protective film. Adsorption followed the Langmuir isotherm, indicating monolayer formation through mixed physisorption and chemisorption, supported by quantum chemical calculations. The synergistic effect of iodide ions (I⁻) further enhanced protection efficiency. Compared with the conventional thermal route, the Q-Tube synthesis provided a faster, more efficient, and higher-yield pathway. This study represents the first successful application of Q-Tube technology for indole-based inhibitor synthesis, offering a practical and sustainable route for high-performance corrosion inhibitors in aggressive acidic environments.

采用节能型q管高压工艺合成了一种新型吲哚基化合物(E)-2-（1h -吲哚-3-羰基）-3-（（4-硝基苯基）氨基）丙烯腈（ICNA），并对其在15%盐酸（HCl）中作为碳钢缓蚀剂进行了评价。通过傅里叶变换红外光谱（FT-IR）和质子核磁共振谱（¹H NMR）证实了结构的一致性。通过失重（WL）、电化学阻抗谱（EIS）和动电位极化（PDP）技术评估了腐蚀性能，同时通过扫描电子显微镜（SEM）、能量色散x射线光谱（EDS）和傅里叶变换红外光谱（FT-IR）分析了吸附膜的表面形貌和成分。ICNA在7.5 × 10⁻⁴M和30°C下的抑制效率为98.64%，随着浓度的增加而增加，随着温度的升高而略有下降。随时间变化的WL测量进一步表明，ICNA在长时间浸泡（长达6h）期间保持了较高的抑制效率，证实了保护膜的稳定性。吸附遵循Langmuir等温线，表明通过混合物理吸附和化学吸附形成单层，量子化学计算支持。碘离子（I−）的协同作用进一步提高了保护效率。与传统的热合成途径相比，q管合成提供了一种更快、更高效、产率更高的途径。这项研究代表了Q-Tube技术在吲哚基缓蚀剂合成中的首次成功应用，为在腐蚀性酸性环境中合成高性能缓蚀剂提供了一条实用且可持续的途径。

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引用次数: 0

Research on gas kick identification and quantification algorithm in deep-water drilling based on multiscale fuzzy diversity entropy 基于多尺度模糊多样性熵的深水钻井气涌识别与量化算法研究

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-10 DOI: 10.1016/j.psep.2026.108417

Ziheng Zhang, Xiaokang Yin, Chaoqiang Sun, Shuhang Zhang, Hongyuan Zhang, Xinqi Zhang, Martin Mwelango, Dong Hu, Wei Wang, Wei Li, Xiao Li, Xin’an Yuan

Gas kick phenomena, in deep-water oil and gas drilling operations, lead to a reduction in drilling fluid density, thereby increasing the risk of blowouts. Therefore, accurately monitoring the variation in gas content inside the riser is crucial for ensuring operational safety. Currently, gas kick monitoring technology, based on the ultrasonic Doppler effect, enables real-time monitoring and early warning aided by the deployment of ultrasonic transducers on the riser to collect acoustic signals. However, due to bubble coalescence, breakup, and interphase slip occurring during the gas kick process, the variation in gas content exhibits a pronounced nonlinear relationship with the acoustic signal response. These phenomena increase the difficulty of quantitatively identifying gas content using ultrasonic monitoring methods. To address this issue, this research proposes a gas kick identification and quantification algorithm based on the Multiscale Fuzzy Diversity Entropy algorithm (MFDE). The method adopts a multiscale processing framework that effectively captures the dynamic features of received acoustic signals across different time scales. Meanwhile, by using fuzzy membership functions instead of conventional hard identification strategies, the algorithm improves adaptability to the data boundary ambiguity caused by the nonlinear dynamics of gas bubbles. Finally, the feature parameters extracted by MFDE are fed into a machine learning algorithm to achieve the identification of gas kicks and the quantitative inversion of gas content. Experimental results show that the proposed method achieves an average identification accuracy of over 96.2 % under different operating conditions and various gas content levels, which is significantly superior to existing gas kick identification methods. This approach enables more precise extraction of key feature parameters that reflect gas kick variations, thereby providing reliable data support and technical reference for real-time monitoring and prevention of blowout risks in deep-water drilling operations.

在深水油气钻井作业中，气涌现象会导致钻井液密度降低，从而增加井喷的风险。因此，准确监测立管内气体含量的变化对于确保作业安全至关重要。目前，基于超声波多普勒效应的气涌监测技术可以通过在隔水管上部署超声波换能器来收集声波信号，从而实现实时监测和预警。然而，由于气涌过程中气泡聚并、破裂和相间滑移的发生，气含量的变化与声信号响应表现出明显的非线性关系。这些现象增加了利用超声波监测方法定量识别气体含量的难度。针对这一问题，本研究提出了一种基于多尺度模糊多样性熵算法（MFDE）的气涌识别与量化算法。该方法采用多尺度处理框架，能有效捕获接收到的不同时间尺度声信号的动态特征。同时，采用模糊隶属函数代替传统的硬识别策略，提高了算法对气泡非线性动力学引起的数据边界模糊的适应性。最后，将MFDE提取的特征参数输入到机器学习算法中，实现气涌的识别和含气量的定量反演。实验结果表明，该方法在不同工况、不同含气量下的平均识别准确率均在96.2%以上，明显优于现有的气涌识别方法。该方法能够更精确地提取反映气涌变化的关键特征参数，从而为深水钻井作业中的实时监测和预防井喷风险提供可靠的数据支持和技术参考。

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引用次数: 0

Enhanced performance of pulse-powered electrokinetic remediation for Cd/Pb-contaminated soil by iron-carbon reactive barriers 铁-碳反应屏障对镉/铅污染土壤脉冲动力电修复性能的提高

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-09 DOI: 10.1016/j.psep.2026.108416

Peihong Zheng , Zongping Cai , Xiufen Yu , Pingfang Yan , Ronglian Lin , Yu Huang , Zhaoyu Leng , Shuiyu Sun

This study applied electrokinetics (EK) coupled with an iron-carbon permeable reactive barrier (FeC-PRB) and pulse-powered to remediate Cd/Pb contaminated soil. Key indicators including soil conductivity, pH, ζ-potential, moisture loss, Cd/Pb migration and speciation change, and PRB structural evolution were analyzed. Results showed that the PRB effectively regulated ion transport and reaction interfaces, mitigated electrode and pH polarization, and significantly enhanced Cd/Pb removal and speciation stability. The PRB underwent non-uniform structural evolution due to acid-base fronts, with its surface gradually becoming rougher and coated by iron oxides after electrochemical processes. These changes improved Cd/Pb immobilization and promoted their transformation into more stable reducible and residual states. Under pulsed power supply, the energy consumption for removing 1 % Cd/Pb decreased by 49.78 kWh and 1.62 kWh compared to EK alone, while the application of PRB increased the removal per unit energy consumption by 2.06 mg for Cd and 209.14 mg for Pb. The PRB contributed an additional removal rate of 20.77 % for Cd and 25.26 % for Pb. The multi-layer PRB structure enhanced the graded interception and immobilization capacity for Cd/Pb, improving the remediation efficiency by 5.76 % for Cd and 6.88 % for Pb compared to a single-layer PRB. This work provides theoretical and data support for optimizing and scaling-up the integrated EK-PRB technology.

本研究采用电动力学（EK）结合铁碳渗透反应屏障（FeC-PRB）和脉冲动力修复Cd/Pb污染土壤。主要指标包括土壤电导率、pH、ζ电位、水分损失、Cd/Pb迁移和形态变化、PRB结构演化等。结果表明，PRB可有效调节离子传输和反应界面，减轻电极和pH极化，显著提高Cd/Pb去除和物种形成稳定性。由于酸碱前缘的作用，PRB的结构演变不均匀，经过电化学处理后，其表面逐渐变得粗糙，并被氧化铁包裹。这些变化改善了Cd/Pb的固定化，促进了它们向更稳定的还原态和残留态转变。在脉冲电源下，与单纯使用EK相比，1 % Cd/Pb的能耗分别降低了49.78 kWh和1.62 kWh，而应用PRB的单位能耗对Cd和Pb的去除率分别提高了2.06 mg和209.14 mg。PRB对Cd和Pb的额外去除率分别为20.77 %和25.26 %。多层PRB结构增强了对Cd/Pb的分级拦截和固定化能力，与单层PRB相比，对Cd和Pb的修复效率分别提高了5.76 %和6.88 %。该工作为优化和推广集成EK-PRB技术提供了理论和数据支持。

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引用次数: 0

Study on the removal and ecological risk of microplastics in road runoff by collapsible loess bioretention facilities 湿陷性黄土生物截留设施对道路径流中微塑料的去除及其生态风险研究

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-09 DOI: 10.1016/j.psep.2026.108389

Wang Xiaojuan , Yan Yaping , Song Xichen , Zhou Jianqiang , Liu Xiuyun , Zhang Tingting , Gao Suxia , Li Jiapeng , Liu Jianlin , Cao Lianbao , Li Wei , Wei Bigui

Because of automobiles and human activity, urban runoff is a major source of microplastics (MPs) pollution in the water environment. In this study, we selected collapsible loess bioretention facilities located on the underlying surfaces of roads in Qingyang City as the subject of the research. The removal of runoff MPs and the degree of ecological risk reduction by the facilities in different rainfall periods were obtained. The findings indicated that MPs removal rates ranged from 43.15 % to 72.42 %. Polyethylene terephthalate (PET), fiber and particle size (20–50μm) had the highest removal rates of 72.85 %, 69.96 % and 62.14 %. Facilities can reduce the ecological risk of MPs. In the future, enhancing the collapsible loess filler will be essential for increasing both its stability and purification performance. It provides a theoretical foundation for efficient removal and ecological risk control of Northwest Loess Plateau urban runoff MPs.

由于汽车和人类活动，城市径流是水环境中微塑料污染的主要来源。本研究以庆阳市道路下垫面湿陷性黄土生物涵养设施为研究对象。得到了不同降雨期各设施对径流MPs的去除量和生态风险降低程度。结果表明，MPs去除率为43.15 % ~ 72.42 %。涤纶（PET）、纤维和粒径（20 ~ 50μm）的去除率分别为72.85 %、69.96 %和62.14 %。设施可以降低MPs的生态风险。今后，提高湿陷性黄土填料的性能是提高其稳定性和净化性能的关键。为西北黄土高原城市径流MPs的有效清除和生态风险控制提供了理论依据。

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引用次数: 0

Waste-to-resource strategy: Optimizing coal fly ash ammonium bisulfate roasting for simultaneous Ca removal and nano-Al(OH)3 synthesis for PAC production 废物资源化策略：优化粉煤灰硫酸氢铵焙烧同时脱除Ca和合成纳米al (OH)3用于PAC生产

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-09 DOI: 10.1016/j.psep.2026.108414

Dmitrii Valeev , Andrei Shoppert , Denis Pankratov , Jin Cui , Fengting Li

This study presents a method for producing polyaluminum chloride (PAC) from mullite-type coal fly ash (CFA) via ammonium sulfate roasting, with a focus on optimizing aluminum extraction and managing iron and calcium impurities. The effects of mechanical activation (30–120 min), roasting temperature (400–450 °C), duration (30–120 min), and CFA-to-(NH₄)₂SO₄ ratio (2.5–3.5) were evaluated. Optimal conditions (450 °C, 60-min activation) enhanced aluminum extraction to 78.6 %, while calcium extraction reached ∼90 %. Advanced characterization (TGA/DSC, XRD, XRF, BET, SEM) elucidated the reaction mechanism between mullite and (NH₄)₂SO₄. Critically, Mössbauer spectroscopy identified that the limited iron extraction (∼80 %) was due to unreacted magnetite (Fe₃O₄) encapsulated within the core of Al-Si particles, a key finding for impurity control. To address gypsum (CaSO₄·2H₂O) co-precipitation during ammonium alum crystallization, a purification method was developed by adding Ca(OH)₂ during leaching, achieving > 95 % Ca removal as anhydrite. Neutralization of the purified alum with 10 % NH₄OH yielded an amorphous Al(OH)₃ nano-powder (38.5 m²/g), which readily dissolved in HCl to synthesize PAC. A comprehensive flowsheet for processing 1 ton of CFA yielded 0.58 t of PAC (30 % Al₂O₃) with a net profit of $74.78, demonstrating technical and economic viability for industrial-scale PAC production from waste CFA.

以莫来石型粉煤灰（CFA）为原料，采用硫酸铵焙烧法制备聚合氯化铝（PAC），并对铝的提取工艺进行了优化，对铁、钙杂质进行了控制。考察了机械活化（30-120 min）、焙烧温度（400-450℃）、焙烧时间（30-120 min）和cfa -(NH4)2SO4比（2.5-3.5）对焙烧效果的影响。最佳条件（450°C， 60 min活化）使铝的提取率提高到78.6% %，而钙的提取率达到~ 90 %。高级表征（TGA/DSC， XRD， XRF， BET， SEM）阐明了莫来石与（NH4）2SO4的反应机理。至关重要的是，Mössbauer光谱鉴定出有限的铁萃取（~ 80 %）是由于包裹在Al-Si颗粒核心内的未反应磁铁矿（Fe3O4），这是杂质控制的关键发现。为解决铵矾结晶过程中石膏（CaSO4·2H2O）共析出的问题，在浸出过程中加入Ca(OH)2进行净化，以硬石膏形式脱除Ca >； 95 %。用10 % NH4OH中和纯化的明矾得到无定形Al(OH)3纳米粉末（38.5 m2/g），它很容易溶解在HCl中合成PAC。处理1吨CFA的综合流程产生0.58 t PAC(30 % Al2O3)，净利润为74.78美元，证明了从废弃CFA中生产工业规模PAC的技术和经济可行性。

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引用次数: 0

Mechanical response characteristics and damage mechanism of cemented tailings backfill in acid mine drainage environment 酸性矿山排水环境下尾砂胶结充填体力学响应特征及损伤机理

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-08 DOI: 10.1016/j.psep.2026.108411

Anmin Yang , Li Wang , Daoxue Yang , Kui Zhao , Chang Liu , Bo Li

Ensuring the stability of cemented tailings backfill (CTB) in acid mine drainage (AMD) environments is essential for maintaining the safety of underground stopes. This study investigates the dynamic erosion behavior of CTB exposed to AMD, with a focus on the evolution of its mechanical properties and damage mechanisms over different erosion durations. Nuclear magnetic resonance (NMR) and water absorption tests were conducted to characterize the evolution of pore size distribution and connectivity, while acoustic emission (AE) monitoring technology was used to elucidate the fracture mechanism during deformation and failure. The results indicate that the porosity and the number of micropores in CTB initially decreased and then increased with prolonged erosion, whereas inter-pore connectivity remained relatively stable. AMD erosion significantly altered the stress–strain behavior of CTB. As erosion time increased, the average RA of AE signals showed a continuous upward trend, while the average AF exhibited the opposite trend. The proportion of tensile and shear microcracks changed systematically, and the dominant failure mode gradually shifted from tension-dominated to shear-dominated. At the early erosion stage, AE localization events were primarily low-energy and sparsely distributed, indicating limited damage. In the later stage, the number and energy of AE events increased, and their spatial distribution became concentrated in local stress concentration zones, signifying intensified damage. The deterioration of CTB in real AMD environments, characterized by strong acidity, high

{SO}_{4}^{2 -}

concentrations, and abundant solid particles, results from complex chemical reactions between cement hydration products and corrosive ions, as well as the physical blockage caused by solid particles. This study provides valuable insight into the long-term stability of CTB under AMD conditions and offers a theoretical foundation for safe mine design and the prevention of geological hazards.

确保尾砂胶结充填体在酸性矿山排水环境下的稳定性，是保障地下采场安全的关键。本文研究了CTB在AMD环境下的动态侵蚀行为，重点研究了不同侵蚀时间下CTB力学性能和损伤机制的演变。通过核磁共振（NMR）和吸水试验表征了孔隙尺寸分布和连通性的演变，并利用声发射（AE）监测技术阐明了变形破坏过程中的破裂机制。结果表明：随着侵蚀时间的延长，CTB的孔隙度和微孔数量呈现先减小后增大的趋势，而孔间连通性保持相对稳定；AMD侵蚀显著改变了CTB的应力-应变行为。随着侵蚀时间的增加，声发射信号的平均RA呈持续上升趋势，而平均AF呈相反趋势。拉伸微裂纹和剪切微裂纹的比例发生了系统变化，主要破坏模式逐渐由拉伸为主向剪切为主转变。在侵蚀初期，声发射局部化事件以低能量为主，分布稀疏，表明损伤程度有限。后期声发射事件的数量和能量增加，空间分布集中在局部应力集中区，表明损伤加剧。在酸性强、SO42−浓度高、固体颗粒丰富的真实AMD环境中，水泥水化产物与腐蚀离子发生复杂的化学反应以及固体颗粒造成的物理阻塞是CTB变质的主要原因。该研究为研究AMD条件下CTB的长期稳定性提供了有价值的见解，为矿山安全设计和地质灾害防治提供了理论依据。

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引用次数: 0

Food waste treatment by black soldier fly larvae (BSFL) and pilot-scale aerobic composting of the BSFL frass using horizontal mechanical reactor 黑虻幼虫对食物垃圾的处理及卧式机械反应器对黑虻幼虫残渣的好氧堆肥中试研究

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-08 DOI: 10.1016/j.psep.2026.108413

Kailiang Shen , Lulu Liu , Yulong Niu , Yue Chen , Feiran Wang , Yuliang Chen , Lin Lin , Seinn Lei Aye , Zhigang Liu , Deli Wu , Xiaowei Li

The implementation of waste sorting policies in China has highlighted the urgent need for effective treatment of food waste. Black soldier fly larvae (BSFL, Hermetia illucens L.) treatment represents a sustainable biological conversion method for resource valorization. BSFL achieved a 32.01 % dry matter reduction rate for food waste after 12 days, considerably higher than the control group without BSFL addition (7.36 %). However, the BSFL frass contained high levels of electrical conductivity (EC, 7.01 mS/cm), ammonia nitrogen (NH₄⁺-N, 6.56 mg/g) and dissolved organic carbon (DOC, 29.9 mg/g), which inhibited seed germination and plant growth, and thus caused strong phytotoxicity. Aerobic composting of BSFL frass was further conducted in a pilot-scale horizontal mechanical reactor, to improve its characteristics as organic fertilizer. The composting led to a 46.30 % reduction in EC, a 64.94 % decrease in NH₄⁺-N, a reduction of 64.61 % in DOC, but an increase in germination index (GI) to 71.09 % and a 11.33 % increase in humic substances. The results indicated the improvement of physicochemical property of the frass. Microbial analysis revealed Firmicutes and Actinobacteriota as dominant phyla driving organic matter degradation during thermophilic phase, while Chloroflexi abundance considerably increased during maturation phase, facilitating humification. Pearson correlation and redundancy analysis indicated that NH₄⁺-N, DOC, and EC not only directly influence GI of the frass composting but also shape the bacterial community composition. This study confirms the feasibility of a pilot-scale composting using horizontal mechanical reactor to improve the frass quality. The findings establish a scalable and efficient integrated BSFL-composting strategy, providing a practical pathway for closed-loop food waste valorization.

中国垃圾分类政策的实施凸显了有效处理食物垃圾的迫切需要。黑兵蝇幼虫（BSFL, Hermetia illucens L.）处理是一种可持续的资源转化方法。12 d后，BSFL处理食物垃圾的干物质减少率为32.01 %，显著高于未添加BSFL的对照组（7.36 %）。然而，BSFL草中含有较高的电导率（EC, 7.01 mS/cm）、氨氮（NH4+-N, 6.56 mg/g）和溶解有机碳（DOC, 29.9 mg/g），抑制了种子萌发和植物生长，具有较强的植物毒性。在卧式机械反应器中试条件下，对BSFL草料进行了好氧堆肥处理，以改善其作为有机肥的特性。堆肥使土壤EC降低46.30 %，NH4+-N降低64.94 %，DOC降低64.61 %，但发芽指数（GI）提高到71.09 %，腐殖质物质增加11.33 %。结果表明，该方法改善了草的理化性质。微生物分析表明，厚壁菌门和放线菌门在嗜热阶段是主导有机物降解的门，而绿菌门在成熟阶段丰度显著增加，促进腐殖化。Pearson相关分析和冗余分析表明，NH4+-N、DOC和EC不仅直接影响牧草堆肥的GI，而且影响细菌群落组成。本研究证实了卧式机械反应器中试堆肥提高渣滓质量的可行性。研究结果建立了一种可扩展和高效的综合bsfl -堆肥策略，为闭环食物垃圾增值提供了一条实用途径。

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引用次数: 0

Sustainable bioremediation of HCHs-contaminated soils using organic amendments: A circular economy approach 利用有机改良剂对六氯环己烷污染土壤进行可持续生物修复：循环经济方法

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-08 DOI: 10.1016/j.psep.2026.108412

Alicia Checa-Fernández , Jose R. Quintana , I. Dolcet Llerena , Aurora Santos , Inmaculada Valverde-Asenjo , Carmen M. Domínguez

This study investigates the potential of two organic waste-derived amendments, horse manure compost (E_H) and sewage sludge (E_S), as cost-effective, scalable solutions for bioremediating hexachlorocyclohexanes (HCHs)-polluted soils. Laboratory experiments used field soils artificially spiked with HCHs particles (≈165 mg/kg_soil) to simulate representative conditions at the Bailín landfill site (Sabiñánigo, Spain). Amendments were applied at 5 % (E_H) and 2.5 % (E_S) dry weight, and degradation was monitored over 90 days under control conditions. E_S stimulated short-term microbial and enzymatic activity, achieving rapid removal of labile isomers (α-HCH and γ-HCH), but its efficacy declined due to nutrient depletion. In contrast, E_H induced sustained enzymatic activation, leading to progressive degradation of all HCH isomers, including recalcitrant β-HCH, with > 95 % total HCH removal by day 90. Enzymatic profiling indicated the involvement of multiple biogeochemical cycles (carbon, nitrogen, phosphorus, and sulphur). While E_S generated early enzymatic peaks (e.g., α-GLU, URE, PHOS), E_H promoted long-term enzymatic functionality, supporting persistent microbial activity. This study emphasizes the practical relevance of organic amendments for field-scale remediation of persistent organic pollutants, highlighting their engineering feasibility, low cost, and alignment with circular economy principles. The amendments did not introduce secondary pollutants, avoiding cross-media contamination and supporting safe application in integrated soil recovery strategies. Increased dehydrogenase and phenoloxidase activities paralleled HCH degradation, highlighting their role as functional indicators of the bioremediation process.

本研究调查了两种有机废物来源的改改剂，马粪堆肥（EH）和污水污泥（ES），作为六氯环己烷（HCHs）污染土壤生物修复的成本效益高、可扩展的解决方案的潜力。实验室实验使用人工添加HCHs颗粒（≈165 mg/kgsoil）的田间土壤来模拟Bailín垃圾填埋场（Sabiñánigo，西班牙）的代表性条件。在5 % （EH）和2.5 % （ES）干重的条件下添加添加剂，并在控制条件下监测降解90天。ES刺激了短期的微生物和酶活性，实现了快速去除不稳定的异构体（α-HCH和γ-HCH），但由于养分消耗，其效果下降。相比之下，EH诱导了持续的酶激活，导致所有HCH异构体的逐步降解，包括顽固性β-HCH，到第90天，HCH的总去除率为>； 95 %。酶谱分析表明了多种生物地球化学循环（碳、氮、磷和硫）的参与。ES产生早期酶峰（如α-GLU， URE， PHOS）， EH促进长期酶功能，支持持续的微生物活性。本研究强调了有机改性对持久性有机污染物的现场修复的实际意义，强调了它们的工程可行性、低成本和与循环经济原则的一致性。修正案没有引入二次污染物，避免了跨媒介污染，并支持在综合土壤恢复战略中的安全应用。脱氢酶和酚氧化酶活性的增加与六氯环己烷的降解平行，突出了它们作为生物修复过程的功能指标的作用。

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引用次数: 0

A review of ice slurry descaling technology for tube systems: Implementation and recent research 管道系统冰浆除垢技术综述：实施与研究进展

IF 7.8 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection

Pub Date : 2026-01-08 DOI: 10.1016/j.psep.2025.108381

Licheng Chen , Qilun Jiang , Chenzhen Ji , Wei Lu , Guanhua Zhang , Zhijie Zhou , Zhigen Wu , Xiaoyu Yan

Ice slurry descaling technology represents an innovative and environmentally friendly approach to pipeline cleaning. Over the past two decades, a substantial amount of research has been conducted on the pipe cleaning system with ice slurries. In contrast to conventional chemical and mechanical methods, ice slurry descaling prevents pipeline corrosion and secondary pollution, aligning with the principles of green engineering and sustainable operation. This review comprehensively examines the principles underlying ice slurry descaling, its recent advancements, and engineering applications. Current studies indicate that phenomena such as ice particle aggregation, flow stratification, and melting during transportation can influence the efficiency and reliability of the cleaning process. Furthermore, we highlight the environmental and safety advantages of this technology. This paper concludes the future trend in this field based on the visualization of the ice slurry circulation system, and the ice slurry is transported a certain distance into the pipeline for descaling using a combination of swirling and parallel transport.

冰浆除垢技术代表了一种创新和环保的管道清洁方法。在过去的二十年里，人们对冰浆管道清洗系统进行了大量的研究。与传统的化学和机械除垢方法相比，冰浆除垢可以防止管道腐蚀和二次污染，符合绿色工程和可持续运行的原则。本文综述了冰浆除鳞的基本原理、最新进展和工程应用。目前的研究表明，运输过程中的冰颗粒聚集、流动分层和融化等现象会影响清洗过程的效率和可靠性。此外，我们强调了该技术的环境和安全优势。本文在冰浆循环系统可视化的基础上总结了该领域的未来发展趋势，采用旋流与平行混合输送的方式将冰浆输送到一定距离的管道中进行除鳞。

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引用次数: 0