Journal of Environmental Chemical Engineering最新文献_第6页

Global overview of uncommon microplastics in treated and bottled waters: Comparative analysis of their abundance, characteristics, emerging challenges, and future direction 处理水和瓶装水中不常见微塑料的全球概况：它们的丰度、特征、新出现的挑战和未来方向的比较分析

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-30 DOI: 10.1016/j.jece.2026.121431

Johnbosco C. Egbueri , Abdullahi G. Usman , Sani I. Abba , Krishna Prakash Arunachalam , Johnson C. Agbasi

{"title":"Global overview of uncommon microplastics in treated and bottled waters: Comparative analysis of their abundance, characteristics, emerging challenges, and future direction","authors":"Johnbosco C. Egbueri , Abdullahi G. Usman , Sani I. Abba , Krishna Prakash Arunachalam , Johnson C. Agbasi","doi":"10.1016/j.jece.2026.121431","DOIUrl":"10.1016/j.jece.2026.121431","url":null,"abstract":"<div><div>Global reliance on treated and bottled water has intensified concerns regarding microplastic (MP) contamination. While conventional MP polymers are well-studied, the presence and implications of uncommonly reported types remain poorly understood. This review synthesizes global literature to comparatively analyze the abundance, characteristics, and implications of these uncommon MPs in both water sources. Examination of data from 89 studies revealed substantial variability. MP abundance ranged from 0 to > 10,000 particles/L in bottled water, compared to < 1–1401 particles/L in treated water. Polymer analysis confirmed the prevalence of common types but also identified specialized polymers, including ethylene-propylene-diene monomer (EPDM), polyacrylonitrile (PACN), and chlorinated polyethylene (CPE). Morphological assessment showed fibers and fragments were dominant, while uncommon forms like cubic shapes, flakes, and foam structures were also reported. Bottled water contained higher concentrations of both uncommon polymers and complex morphological variants than treated water. Regional analysis indicated heightened exposure risks in Asia-Pacific and European countries. The presence of these contaminants challenges existing water treatment efficacy and regulatory frameworks. The findings highlight an urgent need for advanced remediation technologies, the development of standard detection protocols that include uncommon MPs, and updated risk assessments to safeguard water security.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121431"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biosurfactant producing microbes as superstars for lignin degradation: From plant waste to pharmaceutical treasure 生物表面活性剂生产微生物作为木质素降解的超级明星：从植物废料到医药宝藏

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-02-02 DOI: 10.1016/j.jece.2026.121580

Abdul Rashid Khan Haji Mehmood Khan , Arul Dhayalan , Balasubramani Govindasamy

{"title":"Biosurfactant producing microbes as superstars for lignin degradation: From plant waste to pharmaceutical treasure","authors":"Abdul Rashid Khan Haji Mehmood Khan , Arul Dhayalan , Balasubramani Govindasamy","doi":"10.1016/j.jece.2026.121580","DOIUrl":"10.1016/j.jece.2026.121580","url":null,"abstract":"<div><div>Lignin, a very complex aromatic biopolymer, recalcitrant, which is a major structural component of the cell wall of plants and this poses many challenges on the effective utilization of the lignocellulosic biomass. Over decades, lignin degradation is quite complicated for its utilization in biofuels and other value-added products. Therefore, awareness raised and ideas are being implemented for the sustainable and environmentally-friendly lignin depolymerization and valorisation technologies. Microbial processes involving the use of ligninolytic enzyme producing bacteria like <em>Bacillus spp</em>. and <em>Pseudomonas putida</em>, as well as fungal enzymes have shown potential to transform the complex lignin to smaller aromatic compounds. The use of microbial biosurfactant has also enhanced the efficiency and economic viability of lignin valorisation through the improvement of substrate solubility, accessibility of enzymes and general process performance including waste management and bioremediation. But issues like poor product yields, incomplete depolymerization and structural heterogeneity of lignin remain to be a problem to large-scale uses. Recent improvements in thermochemical pretreatment and enzymatic fractionation have facilitated more selective lignin depolymerization and bioactive compounds recovery through bioengineered microbial source (with dual performance), which found to possess therapeutic and industrial applications. Specifically, lignin-derived hydrogels and nanoparticles have shown regulated drug-release characteristics thereby showing the potential of lignin as a sustainable biomaterial in medicine and drug-delivery.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121580"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polarization-driven piezocatalysis and mechanical criteria in ferroelectric materials: From conventional selection to AI-guided design 铁电材料的极化驱动压电催化和力学准则：从传统选择到人工智能引导设计

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-02-08 DOI: 10.1016/j.jece.2026.121693

Fanbing Yan , Abeer Abdulaziz Alsanad , Guangri Chen , Lianwei Shan , Abdul Khader Jilani Saudagar , Jagadeesh Suriyaprakash

{"title":"Polarization-driven piezocatalysis and mechanical criteria in ferroelectric materials: From conventional selection to AI-guided design","authors":"Fanbing Yan , Abeer Abdulaziz Alsanad , Guangri Chen , Lianwei Shan , Abdul Khader Jilani Saudagar , Jagadeesh Suriyaprakash","doi":"10.1016/j.jece.2026.121693","DOIUrl":"10.1016/j.jece.2026.121693","url":null,"abstract":"<div><div>Ferroelectric (FE) materials with their unique spontaneous polarization, hold significant promise for photocatalytic nitrogen fixation. This review summarizes the fundamental physical properties of ferroelectrics, including dielectric, piezoelectric, and elastic properties. It systematically explores how FE polarization enables dynamic control via external fields and the targeted design of catalytic performances. From the reaction mechanisms, the review comprehensively discusses the activation and reduction pathways of nitrogen molecules on FE catalyst surfaces, as well as the theoretical basis for how polarization modulates the adsorption energy barriers of key intermediates and the products selectivity. This review summarizes the design and application of typical catalytic agents such as defect engineering, single-atom engineering, and heterojunction engineering. Furthermore, it outlines the transformative advancements in the design of high-performance catalysts driven by artificial intelligence (AI). Finally, it offers a perspective on future development trends, emphasizing multi-field synergistic approaches.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121693"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatiotemporal patterns, human health risks, and driving mechanisms of ARGs in the littoral zones of the largest shallow lake in North China 华北最大浅湖沿岸地区ARGs时空格局、人类健康风险及驱动机制

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jece.2026.121183

Kai Deng , Lei Wang , Aiwen Wang , Xun Han , Lining Zhao , Yulong Zhang , Dan Ma , Fei Zheng , Sijun Dong

{"title":"Spatiotemporal patterns, human health risks, and driving mechanisms of ARGs in the littoral zones of the largest shallow lake in North China","authors":"Kai Deng , Lei Wang , Aiwen Wang , Xun Han , Lining Zhao , Yulong Zhang , Dan Ma , Fei Zheng , Sijun Dong","doi":"10.1016/j.jece.2026.121183","DOIUrl":"10.1016/j.jece.2026.121183","url":null,"abstract":"<div><div>Antibiotic resistance genes (ARGs), particularly those harbored by pathogens, pose an increasing threat to public health. Although numerous studies have investigated ARGs in Chinese lakes, the occurrence of ARGs in the littoral zones of lakes—areas particularly vulnerable to anthropogenic activities—remains poorly understood. In this study, high-throughput quantitative PCR was used to characterize ARGs in the littoral zone of Baiyang Lake, which is the largest shallow lake in northern China. A total of 254 related genes were detected, including 209 ARGs and 45 mobile genetic elements (MGEs). Both the relative abundances of ARGs and MGEs were significantly higher in the wet season than in the dry season (<em>P</em> < 0.05), and were higher in the tributary estuary and residential area than in the dock area and natural wetland area (<em>P</em> < 0.05). Network analysis revealed that wastewater discharge and animal husbandry activities are the key sources of ARGs. Water physicochemical parameters, antibiotics, and MGEs were identified as the primary positive drivers during both the wet and dry seasons. The findings underscore the urgent need for improved wastewater treatment, enhanced human and animal husbandry waste management, and stricter regulation of antibiotic use. Overall, this work offers novel perspectives on the spatiotemporal distribution, human health risks, and driving mechanisms of ARGs in shallow lake littoral zones. They also provide a scientific basis for strengthening monitoring and implementing targeted environmental management strategies for ARG pollution.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121183"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surfactant-enhanced ultrasonic agglomeration of carbon black aerosols with experimental optimization 表面活性剂增强炭黑气溶胶超声团聚的实验优化

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jece.2026.121218

Sirui Tong , Guangxue Zhang , Ziyue Chen , Yuqi Mao , Yunchao Li , Dingkun Yuan , Jiangrong Xu , Siew Hwa Chan

{"title":"Surfactant-enhanced ultrasonic agglomeration of carbon black aerosols with experimental optimization","authors":"Sirui Tong , Guangxue Zhang , Ziyue Chen , Yuqi Mao , Yunchao Li , Dingkun Yuan , Jiangrong Xu , Siew Hwa Chan","doi":"10.1016/j.jece.2026.121218","DOIUrl":"10.1016/j.jece.2026.121218","url":null,"abstract":"<div><div>Carbon black aerosols are highly hydrophobic and remain suspended as fine particles during mixing and conveying, posing respiratory and dust explosion hazards. Acoustic agglomeration (AA) offers a pre-collection route to enlarge carbon black particles to facilitate downstream capture. This study used an integrated experimental setup to evaluate AA performance under various conditions and optimize acoustic parameters. The optimal sound pressure level was 139 dB for both the sound only and water-mist-assisted (AA+water) cases, with the corresponding most effective frequencies of 18 and 16 kHz, respectively. Dispersed water droplets in the carrier gas promoted liquid-bridge formation, yielding stable transmittance above 80 % and agglomerates with diameters near 10 μm. Tests with three surfactants were performed to assess how interfacial properties affect agglomeration and indicated that electrostatic screening can eliminate Coulombic repulsion between particles, achieving stable transmittance up to 95 %. Initial concentration tests revealed a balance between the water-mist flow rate and the carbon black feed rate. Excessive mist may cause aerosol redispersion, whereas high carbon black mass concentration enhances collisions but drives performance toward saturation via acoustic shielding. These findings provide guidance for optimizing the AA for carbon black aerosols with surfactants and lay the foundation for downstream capture design and material reuse systems.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121218"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Bi2MoO6 materials in ammonia synthesis through photocatalytic nitrogen fixation Bi2MoO6材料在光催化固氮合成氨中的应用

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jece.2026.121172

Ping Zhang, Xinyu Du, Keyi Chai, Jiaqi Guo, Lu Zhang, Xiaoping Su, Lianbiao Zhao

{"title":"Application of Bi2MoO6 materials in ammonia synthesis through photocatalytic nitrogen fixation","authors":"Ping Zhang, Xinyu Du, Keyi Chai, Jiaqi Guo, Lu Zhang, Xiaoping Su, Lianbiao Zhao","doi":"10.1016/j.jece.2026.121172","DOIUrl":"10.1016/j.jece.2026.121172","url":null,"abstract":"<div><div>Photocatalytic semiconductor technology has attracted significant research attention due to its outstanding capability in addressing energy and environmental challenges. The traditional ammonia synthesis industry is characterized by high energy consumption, necessitating the exploration of new, environmentally sustainable methods for ammonia production. Photocatalytic nitrogen reduction reaction (pNRR) can produce NH<sub>3</sub> under ambient conditions. This process is driven by solar energy and is noted for its zero-emission characteristics. As a representative member of the Aurivillius family, Bi<sub>2</sub>MoO<sub>6</sub> (BMO) has attracted considerable research interest due to its economic feasibility and promising photocatalytic properties, including environmental friendliness, tunable band gap (2.5–2.8 eV), and significant visible light absorption capacity. Nevertheless, the photocatalytic performance of BMO still has considerable room for improvement. Currently, various modification strategies are employed to enhance the photocatalytic activity of BMO. This review also covers the nitrogen fixation mechanisms, structural characteristics and synthesis of BMO, as well as ammonia detection methods and sources. Finally, the report highlights the current challenges in the field and future research directions.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121172"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of stable isotopes in revealing mechanisms of pollutants biodegradation in wastewater treatment: A review 稳定同位素在揭示废水处理中污染物生物降解机制中的应用综述

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-14 DOI: 10.1016/j.jece.2026.121250

Bingqian Jiang , Xiaofeng Chen , Yonglan Tian , Shaoxia Yang , Yanbin Tong , Junfeng Niu

{"title":"Application of stable isotopes in revealing mechanisms of pollutants biodegradation in wastewater treatment: A review","authors":"Bingqian Jiang , Xiaofeng Chen , Yonglan Tian , Shaoxia Yang , Yanbin Tong , Junfeng Niu","doi":"10.1016/j.jece.2026.121250","DOIUrl":"10.1016/j.jece.2026.121250","url":null,"abstract":"<div><div>Based on the bibliometric analysis, this review investigates the application of stable isotope in biological wastewater treatment in the past 20 years. Stable isotopes are mainly used for studying the removal of nitrogen conventional and emerging organic pollutants, as well as the functional mechanism of biological communities. Firstly, stable isotopes technology provides a transparent perspective for in-depth understanding of the denitrification mechanism and its influencing factors. To date, the nitrogen removal mechanism under the comprehensive action of multiple factors, the carbon source competition and allocating mode are still not clear. Stable isotopes are used for reconstructing and quantifying the nitrogen cycle process involved by eukaryotic and metazoan. Secondly, stable isotopes play an important role in investigating the degradation pathways of emerging refractory pollutants represented by persistent organic compounds, antibiotics and endocrine disruptors. It arouses the urgent need for multi-isotope combination, single-cell and quantitative stable isotope detection techniques. Thirdly, stable isotope nucleic acid probe technology is operative in understanding of the structure, function and purification mechanism of biological communities, especially the mechanism of biological predation in pollutants removal. Combining stable isotope with other cutting-edge biotechnology shows large potential in researching the greenhouse gas emission reducing pathway, pollutant removal mechanism under multiple influencing factors, complex biological community interaction, microbial food web identification and construction in wastewater treatment plants. This review is expected to provide references for the innovation of wastewater treatment technologies such as the emerging pollutants biodegradation and transformation network as well as the <em>in-situ</em> residual sludge reduction enhanced by predation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121250"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-negligible risk of nitrogenous disinfection byproducts arising from the chlorination of ammonia-containing source water 含氨水源经氯化处理产生的含氮消毒副产物的不可忽略的风险

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.jece.2026.121231

Guangrong Sun , Dongquan Li , Feiyang Huang , Han Yeong Kaw , Hainan Wu , Haibing Cong

{"title":"Non-negligible risk of nitrogenous disinfection byproducts arising from the chlorination of ammonia-containing source water","authors":"Guangrong Sun , Dongquan Li , Feiyang Huang , Han Yeong Kaw , Hainan Wu , Haibing Cong","doi":"10.1016/j.jece.2026.121231","DOIUrl":"10.1016/j.jece.2026.121231","url":null,"abstract":"<div><div>The role of ammonia in the formation of nitrogenous disinfection by-products (N-DBPs) during chlorination remains debated. In this study, we systematically investigated the contribution of ammonia in generating four N-DBPs and two carbonaceous DBPs (C-DBPs) during the chlorination of bisphenol A (BPA), while also identified novel N-DBPs using high-resolution mass spectrometry (HRMS). Results revealed that ammonia significantly altered the composition of low-molecular-weight aliphatic DBPs. Specifically, haloacetonitriles (HANs) exhibited an initial increase followed by a subsequent decline, whereas haloacetamides (HAcAms), halonitromethanes (HNMs) and N-nitrosamines (NAs) showed a positive correlation with ammonia concentration. Compared with ammonia-free condition, HRMS analysis revealed 17 novel C-DBPs and 26 novel N-DBPs, which included an increased generation of aromatic N-DBPs. The integrated toxicity assessment of low-molecular-weight DBPs further indicated that overall cytotoxicity and genotoxicity in drinking water initially increased then decreased with rising ammonia concentration, peaking at 1 mg/L, while the carcinogenic risk of NAs continuously increased with ammonia concentrations. These findings highlighted the importance of controlling ammonia at reduced levels to safeguard drinking water safety.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121231"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of monopyridine amine extractant for selective heavy rare earth element extraction 选择性萃取重稀土元素的单吡啶胺萃取剂设计

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-15 DOI: 10.1016/j.jece.2026.121221

Miaomiao Zhang , Heng Zhao , Zhen Yang , Xingwei Luo

{"title":"Design of monopyridine amine extractant for selective heavy rare earth element extraction","authors":"Miaomiao Zhang , Heng Zhao , Zhen Yang , Xingwei Luo","doi":"10.1016/j.jece.2026.121221","DOIUrl":"10.1016/j.jece.2026.121221","url":null,"abstract":"<div><div>The separation of rare earth elements is a challenging task due to their similar chemical behavior. As research into rare earth separation technology has progressed, the molecular structure design of the extractant has gradually become a research focus. In this paper, the molecular system of mono-pyridine amine extractant based on positional isomerization effect was constructed by precise structural regulation, and the o/m/p substituted pyridine amine extractant system (N-o/m/pPyMChA) was prepared. The investigation into the extraction conditions, including extraction time, diluent type, pH, and extraction temperature, has concluded that N-mPyMChA exhibits the optimal extraction capacity. The underlying reason for its structural superiority was analyzed by electrostatic potential analysis. N-PyMChA exhibits separation potential for light and heavy rare earth elements, with better selectivity for the latter. Density functional theory (DFT) calculation, including gas phase binding energy, Gibbs free energy in the gas phase, WBI bond order, and Mulliken charge, was utilized to reveal the selectivity of N-PyMChA towards heavy rare earth elements. The separation factor of N-mPyMChA between adjacent REEs, Er<sup>3 +</sup> and Tm<sup>3+</sup>, is 4.18. The findings of this study have yielded novel insights into the separation of rare earth elements, providing a novel approach to the field.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121221"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insight into the mechanism of doxycycline promoting N2O emissions during swine manure composting 强力霉素促进猪粪堆肥过程中N2O排放的机理研究

IF 7.2 2区工程技术

Journal of Environmental Chemical Engineering Pub Date : 2026-04-01 Epub Date: 2026-01-15 DOI: 10.1016/j.jece.2026.121266

Chengyu Ma , Yunfeng Qian , Bingbing Xing , Han Xiao , Hao Zhu , Shanshuai Chen , Wei Gao , Xin Jin , Huanyu Bao , Yunze Ruan

{"title":"Insight into the mechanism of doxycycline promoting N2O emissions during swine manure composting","authors":"Chengyu Ma , Yunfeng Qian , Bingbing Xing , Han Xiao , Hao Zhu , Shanshuai Chen , Wei Gao , Xin Jin , Huanyu Bao , Yunze Ruan","doi":"10.1016/j.jece.2026.121266","DOIUrl":"10.1016/j.jece.2026.121266","url":null,"abstract":"<div><div>As a second-generation tetracycline, doxycycline (DOX) is increasingly substituting traditional tetracycline antibiotics in animal husbandry. The emission of nitrous oxide (N₂O) during composting makes a substantial contribution to the ozone depletion and greenhouse effect. Nevertheless, understanding the influence of DOX residues on N₂O emissions during composting still poses a challenge. Here, this research explored the impacts of various DOX concentrations (0, 10, and 100 mg/kg) on nitrogen transformation and the emissions of N₂O during swine manure composting. The results found that high content of DOX (100 mg/kg, T2) markedly promoted N₂O emissions, which increased by 503.80 % compared with no DOX addition (CK). DOX enhanced nitrification, leading to nitrate (NO₃⁻-N) accumulation, which provided more substrate for denitrification. Metagenomic and 16S rRNA analyses revealed DOX increased the key denitrifying functional genes (<em>norB</em>, <em>nirS</em>, <em>n</em>arG, and <em>nirK</em>) abundance and enriched N₂O-producing microorganisms, while suppressing the abundance of the N₂O-reducing gene <em>nosZ</em> and its host bacteria. Partial least squares structural equation modeling (PLS-SEM) and random forest further confirmed that the increased N₂O emissions under the high DOX concentration treatment were primarily attributable to the elevated abundances of key microorganisms and the accumulation of denitrification substrates. This study elucidates the mechanistic pathways by which DOX exacerbates N₂O emissions, providing critical insights for mitigating N<sub>2</sub>O from the composting of antibiotic-contaminated manure.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"14 2","pages":"Article 121266"},"PeriodicalIF":7.2,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0