Journal of water process engineering最新文献_第2页

Preparation of half-coated manganese oxide lithium ion-sieve precursor with low manganese dissolution loss for lithium recovery 低锰溶失半包覆氧化锰锂离子筛前驱体的制备及锂回收

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-28 DOI: 10.1016/j.jwpe.2025.107785

Ping Liu, Xiaolong Yan, Zhen Chen, Yuanhang Qin, Li Yang, Jiayu Ma

{"title":"Preparation of half-coated manganese oxide lithium ion-sieve precursor with low manganese dissolution loss for lithium recovery","authors":"Ping Liu, Xiaolong Yan, Zhen Chen, Yuanhang Qin, Li Yang, Jiayu Ma","doi":"10.1016/j.jwpe.2025.107785","DOIUrl":"10.1016/j.jwpe.2025.107785","url":null,"abstract":"<div><div>Approximately 64 % of lithium resources exist in liquid form, and adsorption is considered as an effective method for lithium extraction. Among various lithium extraction materials, manganese oxide lithium ion-sieve has shown great promise as adsorbents for recovering lithium from solution. However, reducing manganese dissolution loss of manganese oxide lithium ion-sieve remains to be a huge challenge. In this work, a half-coated Li<sub>4</sub>Mn<sub>5</sub>O<sub>12</sub>@Li<sub>2</sub>MnO<sub>3</sub> (HC-LMO) precursor was synthesized using solid-phase combustion method. The stability of the HC-LMO adsorbent was improved by adjusting the proportion of acid-resistant shell Li<sub>2</sub>MnO<sub>3</sub>. The experimental results demonstrate that the manganese dissolution loss in HC-HMO (Lithium ion-sieve obtained by Li<sup>+</sup>-H<sup>+</sup> exchange of LMO, 0.8 %) was significantly lower compared to that in HMO (Lithium ion-sieve obtained by Li<sup>+</sup>-H<sup>+</sup> exchange of LMO, 2.1 %) after 5 cycles. Additionally, the adsorption capacity of HC-HMO for Li<sup>+</sup> ions decreased by 3.9 %, whereas that of HMO without an acid-resistant shell decreased by 12.5 %. The Li<sub>2</sub>MnO<sub>3</sub> contributing to the enhanced stability of HC-LMO during acid treatment. The HC-LMO exhibits a simple synthesis method and excellent cycling stability.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107785"},"PeriodicalIF":6.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878463","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

Influence of ethanol supplementation on sulfate reduction and methanogenesis in UASB reactors 乙醇对UASB反应器中硫酸盐还原和甲烷生成的影响

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-28 DOI: 10.1016/j.jwpe.2025.107754

Yuanyao Ye , Juefei Ye , Zhi Xu , Jianxiong Kang , Dongqi Liu , Yongzheng Ren , Huu Hao Ngo , Wenshan Guo , Shijing Huang , Wei Jiang

{"title":"Influence of ethanol supplementation on sulfate reduction and methanogenesis in UASB reactors","authors":"Yuanyao Ye , Juefei Ye , Zhi Xu , Jianxiong Kang , Dongqi Liu , Yongzheng Ren , Huu Hao Ngo , Wenshan Guo , Shijing Huang , Wei Jiang","doi":"10.1016/j.jwpe.2025.107754","DOIUrl":"10.1016/j.jwpe.2025.107754","url":null,"abstract":"<div><div>This study evaluated the performance of an anaerobic reactor at low carbon-to-sulfate ratios with various sulfate concentrations and carbon sources. The results indicated that ethanol addition enhanced both sulfate removal and methane production, achieving 80 % sulfate removal and over 40 % methane content in the biogas. When mixed ethanol with starch hydrolysate in a weight ratio of 1, the methane content increased to 55 %. However, using 100 % ethanol reduced COD removal to <20 % and inhibited biogas production. Further analysis showed that ethanol promoted sulfate removal as sulfide in the liquid phase and altered electron flow between sulfate reducing bacteria and methanogens, with methanogens predominantly capturing the electrons. The addition of ethanol also reduced extracellular polymeric substance levels, suggesting decreased microbial stress. The addition of ethanol selectively enriched <em>Desulfovibrio</em>-based incompletely oxidizing sulfate-reducing bacteria. These microbes efficiently metabolized ethanol into acetic acid, which served as both an electron donor for sulfate reducers and a substrate for methanogens. As a result, over 50 % of the electron flow was directed toward methane generation at a carbon-to‑sulfur (C/S) ratio of 2:1, significantly increasing the methane content in the biogas to 55 %.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107754"},"PeriodicalIF":6.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882194","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

The effects of different types of surfactants on the electrochemical degradation of PET microplastics 不同类型表面活性剂对PET微塑料电化学降解的影响

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-28 DOI: 10.1016/j.jwpe.2025.107779

Ran Chen, Yining Deng, Jinyan Wang, Yuchun Cui, Yuzeng Zhao, Honghua Ge

{"title":"The effects of different types of surfactants on the electrochemical degradation of PET microplastics","authors":"Ran Chen, Yining Deng, Jinyan Wang, Yuchun Cui, Yuzeng Zhao, Honghua Ge","doi":"10.1016/j.jwpe.2025.107779","DOIUrl":"10.1016/j.jwpe.2025.107779","url":null,"abstract":"<div><div>Electrochemical advanced oxidation processes (EAOP) have demonstrated effective performance in removing microplastics (MPs) from water. Surfactant molecules are widely present as pollutants in water containing microplastics, alter the hydrophobicity of microplastic surfaces, facilitating the dispersion of plastic particles and forming stable suspensions. This study investigates without adding additional catalysts, the electrochemical degradation efficiency of PET MPs in the presence of different surfactants. Both cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS), an anionic surfactant, enhance the electrochemical degradation efficiency of PET MPs, with the weight loss of PET MPs reaching 68 % and 58 %, respectively, after 6 h of electrolysis. The primary reactive species identified were ·OH and SO<sub>4</sub>·<sup>−</sup> radicals. Both electrodes contributed to the degradation, with the cathode playing a more significant role in the decomposition of PET MPs into water-soluble organic compounds, while the anode effectively removed these compounds from the solution. A quantitative analysis of the ability of the cathode and anode to generate H<sub>2</sub>O<sub>2</sub>, with and without surfactants, revealed that the addition of SDS and CTAB enhanced the redox reactions at the electrodes, increasing the yield of reactive species and improving the contact between PET MPs and these species, thereby further promoting the electrochemical degradation.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107779"},"PeriodicalIF":6.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878465","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

Effects of ferrite porous confined biochar nanoreactor on the adsorption and desorption of Pb and Cd 铁氧体多孔密闭生物炭纳米反应器对铅、镉吸附和解吸的影响

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-28 DOI: 10.1016/j.jwpe.2025.107717

Ning Liu , Rongxin Zhou , Shuangxue Huang , Jiming Zhang , Hongda Zhang , Hang Liu , Xiao Du , Dongyi Zhang , Renlong Zhang , Zhentao Sun , Shifeng Fu , Xiumei Zhan

{"title":"Effects of ferrite porous confined biochar nanoreactor on the adsorption and desorption of Pb and Cd","authors":"Ning Liu , Rongxin Zhou , Shuangxue Huang , Jiming Zhang , Hongda Zhang , Hang Liu , Xiao Du , Dongyi Zhang , Renlong Zhang , Zhentao Sun , Shifeng Fu , Xiumei Zhan","doi":"10.1016/j.jwpe.2025.107717","DOIUrl":"10.1016/j.jwpe.2025.107717","url":null,"abstract":"<div><div>Magnetic biochar is an effective adsorbent for the treatment of industrial wastewater; however, the preparation process and function still need to be optimized. Therefore, in this study, porous nano‑iron biochar composites (MMIBC) were prepared using the co-precipitation method to remove lead (Pb) and cadmium (Cd) from wastewater. The physical structure and chemical properties of biochar were characterized; the effects of different factors, such as pH, on the adsorption properties and the differences in adsorption mechanisms were explored; and cyclic adsorption and desorption experiments were conducted to verify the regeneration capacity. The results showed that the adsorption capacities of MMIBC were 28.74 % (Cd) and 18.95 % (Pb) higher than those of unmodified biochar because of its rich oxygen-containing functional group, mineral composition, and adsorption process. Moreover, the magnetic properties of MMIBC can enhance the fixation and regeneration capacity of heavy metals and facilitate recycling. The low cost, simplistic process, excellent adsorption performance, and waste recycling advantages make MMIBC the preferred biomass adsorbent.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107717"},"PeriodicalIF":6.3,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882190","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 magnetic graphene in the field of wastewater treatment: A review 磁性石墨烯在污水处理领域的应用综述

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107766

Yi Wei , Gaigai Duan , Yong Huang , Xiaoshuai Han , Chunmei Zhang , Shuijian He , Hongliang Zhao , Chunxin Ma , Shaohua Jiang

{"title":"Application of magnetic graphene in the field of wastewater treatment: A review","authors":"Yi Wei , Gaigai Duan , Yong Huang , Xiaoshuai Han , Chunmei Zhang , Shuijian He , Hongliang Zhao , Chunxin Ma , Shaohua Jiang","doi":"10.1016/j.jwpe.2025.107766","DOIUrl":"10.1016/j.jwpe.2025.107766","url":null,"abstract":"<div><div>Water shortage and pollution are the main problems facing the world. Adsorption is a promising wastewater treatment technology. Graphene is a good adsorbent. However, graphene is difficult to separate from water, which limits its application. Magnetic graphene not only has excellent adsorption capacity, but also can be quickly separated from aqueous solution by increasing the external magnetic field, which solves the limitations of traditional adsorbents. In addition, the selectivity and efficiency of MGO for specific pollutants were enhanced by the functionalization of materials such as chitosan, cyclodextrin and EDTA. For example, the removal rates of Pb (II), Hg (II) and Cu (II) by EDTA-functionalized MGO were 96.2 %, 95.1 % and 96.5 %, respectively. This review breaks through the limitations of single pollutant research and scientifically divides the pollutant system into three categories: ions (heavy metal ions, radioactive metal ions, and arsenic), organic pollutants (dyes, antibiotics, and aromatic compounds), and agricultural pollutants (herbicides, pesticides). The antibacterial properties of magnetic graphene were systematically described for the first time, revealing its ability to remove pathogenic microorganisms such as <em>Escherichia coli</em> (sterilization rate up to 95 %). In summary, MGO has broad prospects in the field of wastewater treatment.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107766"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877031","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

Rapid synthesis of Co-loaded biochar by flash Joule heating for efficient degradation of metronidazole via peroxymonosulfate activation 闪速焦耳加热快速合成共负载生物炭，并通过过氧单硫酸盐活化高效降解甲硝唑

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107789

Yu Zhang , Xiuxiu Zhang , Hongru Jiang , Jianchao Wang , Yingshuang Zhang , Chongqing Wang

{"title":"Rapid synthesis of Co-loaded biochar by flash Joule heating for efficient degradation of metronidazole via peroxymonosulfate activation","authors":"Yu Zhang , Xiuxiu Zhang , Hongru Jiang , Jianchao Wang , Yingshuang Zhang , Chongqing Wang","doi":"10.1016/j.jwpe.2025.107789","DOIUrl":"10.1016/j.jwpe.2025.107789","url":null,"abstract":"<div><div>The utilization of metal catalysts to activate peroxymonosulfate (PMS) for degrading organic contaminants is an effective strategy for addressing organic wastewater challenges. Flash Joule heating (FJH) is a novel thermochemical technology for the rapid synthesis of functionalized materials. FJH technology can rapidly raise temperatures above 2000 °C in a short period of time, which partially mitigates the energy inefficiency and long cycle times of conventional thermochemical technologies. Co-loaded flash biochar (FJH-Co/BC) was prepared by the impregnation-FJH method. FJH-Co/BC showed good pore structure and large surface area, and loaded cobalt species. FJH-Co/BC effectively activated PMS for the degradation of metronidazole (MNZ). Under the conditions of catalyst 40 mg/L, PMS 1 mM, and temperature 25 °C, 100 % removal of MNZ was obtained within 60 min. The reaction system showed good performance for MNZ degradation over a wide pH range (3−11). The catalytic system degraded MNZ by both radical pathways (SO<sub>4</sub><sup>•–</sup> and ·OH) and non-radical pathways (<sup>1</sup>O<sub>2</sub> and electron transfer), and the non-radical pathway played a major role. The loaded Co species in FJH-Co/BC were the main contributor to the generation of reactive oxygen species from PMS activation, and flash biochar played the role of Co support and facilitator of electron transfer. The degradation pathway of MNZ in the catalytic system was revealed, and the toxicity assessment confirmed the low ecotoxicity of the degradation intermediates. This work provides a novel strategy for the efficient synthesis of metal-loaded catalysts for the catalytic degradation of organic contaminants.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107789"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877133","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

“A review of PFAS remediation: Separation and degradation technologies for water and wastewater treatment” "全氟辛烷磺酸补救措施综述：用于水和废水处理的分离和降解技术"

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107793

Silmara Sanzana , Angelo Fenti , Pasquale Iovino , Antonio Panico

{"title":"“A review of PFAS remediation: Separation and degradation technologies for water and wastewater treatment”","authors":"Silmara Sanzana , Angelo Fenti , Pasquale Iovino , Antonio Panico","doi":"10.1016/j.jwpe.2025.107793","DOIUrl":"10.1016/j.jwpe.2025.107793","url":null,"abstract":"<div><div><em>Per</em>- and Polyfluoroalkyl Substances (PFAS) known for their persistence and accumulation in the environment, are particularly concerning. PFAS are synthetic compounds characterized by fully fluorinated carbon chains, making them resistant to conventional water treatment methods, and causing contamination in different environmental matrices. Various technologies, including adsorption, membrane filtration, electrochemical oxidation, and biological degradation, demonstrate significant potential but face unique key gaps and challenges. Adsorption struggles with short-chain PFAS and material regeneration, Granular activated carbon (GAC) and ion exchange resins (IER) show promising results through adsorption, but further optimization is needed. Membrane technologies like nanofiltration (NF) and reverse osmosis (RO) offer robust solutions, although energy consumption and fouling issues need resolution. Electrochemical oxidation (EO) is promising but is limited by high costs, scalability, and electrode degradation. Biological degradation is eco-friendly but time-consuming and requires specialized microbial strains. Future research should prioritize improving the efficiency, scalability, and sustainability of PFAS removal technologies, with a focusing on overcoming current limitations. Conducting detailed cost analyses is crucial to evaluate the feasibility of full-scale applications.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107793"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877032","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

Tree-inspired polycaprolactone-mugwort adsorption membrane for Cu(II) removal from wastewater 树型聚己内酯-艾草吸附膜去除废水中Cu（II）

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107767

Han Bi Lee , Ah-Jeong Choi , Heejin Kim , Ju Yeon Kim , Young-Kwan Kim , Min Wook Lee

{"title":"Tree-inspired polycaprolactone-mugwort adsorption membrane for Cu(II) removal from wastewater","authors":"Han Bi Lee , Ah-Jeong Choi , Heejin Kim , Ju Yeon Kim , Young-Kwan Kim , Min Wook Lee","doi":"10.1016/j.jwpe.2025.107767","DOIUrl":"10.1016/j.jwpe.2025.107767","url":null,"abstract":"<div><div>Recently, wastewater discharge has been increasing due to the increase in semiconductor production, and heavy metals in semiconductor wastewater can cause life-threatening effects on the brain, liver, and kidneys. In this study, we developed an eco-friendly polycaprolactone-mugwort (PCL-mugwort) adsorption membrane through electrospinning to remove various heavy metal ions contained in semiconductor wastewater. PCL is a representative biodegradable and biocompatible polymer, and mugwort is a natural material and rich in minerals, calcium, iron, and etc. The removal performance of the PCL-mugwort adsorption membranes for heavy metal ions was evaluated under static conditions with stirring and dynamic conditions with filtration. With 100 μM aqueous solution (5 mL) of copper ions, the 36 cm<sup>2</sup> the PCL-mugwort adsorption membrane, with a mugwort content in the membrane: 0.13 mg/cm<sup>2</sup>, shows a high removal efficiency of 71.7 % within 6 h under a static condition and 65.4 % under a dynamic condition with a flow rate of 10 mL/h. The removal mechanism was analyzed using two- and three-parameter isotherms, indicating that the adsorption followed a multilayer process on a heterogeneous surface with adsorption sites having different energies. In addition, the PCL-mugwort adsorption membrane was scrolled to mimic the internal structure of a non-powered artificial tree with a capillary force to pump wastewater for simultaneous removal of heavy metal ions and evaporation of clean water.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107767"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877131","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

Antibiotics inhibit nitrogen removal and promote greenhouse gas emissions in high-density earthworm-enhanced constructed wetlands 在高密度蚯蚓强化人工湿地中，抗生素抑制氮的去除并促进温室气体的排放

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107815

Guangqian Kuang , Huijuan Cao , Xiangyong Zheng , Yishi Lin , Xingmin Jin , Min Zhao , Wenjuan Han

{"title":"Antibiotics inhibit nitrogen removal and promote greenhouse gas emissions in high-density earthworm-enhanced constructed wetlands","authors":"Guangqian Kuang , Huijuan Cao , Xiangyong Zheng , Yishi Lin , Xingmin Jin , Min Zhao , Wenjuan Han","doi":"10.1016/j.jwpe.2025.107815","DOIUrl":"10.1016/j.jwpe.2025.107815","url":null,"abstract":"<div><div>Antibiotics in wastewater present significant ecological risks. However, their effects on nitrogen (N) removal and greenhouse gas (GHG) emissions in constructed wetlands (CWs) have been largely neglected in previous studies. This study investigated the effects of antibiotics on N removal and GHG emissions in earthworm-enhanced CWs constructed with three earthworm densities (0 g m<sup>-2</sup>, 156 g m<sup>-2</sup>, and 312 g m<sup>-2</sup>). The results showed that (1) antibiotics significantly increased effluent total inorganic nitrogen (TIN) concentrations by 49.17 % in systems with the high-density earthworm, whereas no significant effects were observed in the other treatments; (2) in systems without earthworms, antibiotics significantly reduced N₂O emissions by 139 %. In systems with low-density earthworms, CH₄ and CO₂ emissions were significantly reduced by 366 % and 70.3 %, respectively. In contrast, in high-density earthworm systems, N₂O emissions significantly increased by 289 %; (3) antibiotics led to a significant reduction in non-CO₂ global warming potential (GWP<sub>non-CO₂</sub>, -143 %) in the systems without earthworms and a reduction in total global warming potential (GWP<sub>CH₄+N₂O+CO₂</sub>, -57.3 %) in the systems with low-density earthworms. However, both indices significantly increased by 289 % and 51.2 % in systems with high-density earthworms; (4) antibiotics altered the microbial community composition and significantly increased nitrite reductase activity in the systems with low-density earthworms (+24.5 %) but significantly decreased it in systems with high-density earthworms (-33.0 %). In summary, antibiotic contamination markedly influenced both N removal performance and GHG emissions in earthworm-enhanced CWs, with effects varying depending on earthworm density.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107815"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877029","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

Enhanced photocatalytic performance of intercalated 2D BiOBr nanosheets into 3D knob-like Bi2WO6 for the degradation of antibiotics and textile pollutants 嵌入二维BiOBr纳米片增强三维旋钮状Bi2WO6光催化降解抗生素和纺织污染物的性能

IF 6.3 2区工程技术

Journal of water process engineering Pub Date : 2025-04-27 DOI: 10.1016/j.jwpe.2025.107790

Donia Dridi , Amine Aymen Assadi , Jaspal Singh , Phuong Nguyen-Tri

{"title":"Enhanced photocatalytic performance of intercalated 2D BiOBr nanosheets into 3D knob-like Bi2WO6 for the degradation of antibiotics and textile pollutants","authors":"Donia Dridi , Amine Aymen Assadi , Jaspal Singh , Phuong Nguyen-Tri","doi":"10.1016/j.jwpe.2025.107790","DOIUrl":"10.1016/j.jwpe.2025.107790","url":null,"abstract":"<div><div>The development of efficient, stable, and scalable photocatalysts for wastewater remediation remains a critical challenge in environmental science. In this work, a novel 3D/2D Bi₂WO₆/BiOBr heterostructure was synthesized via a low-cost solvothermal-hydrothermal method. Structural and morphological analyses confirmed the successful integration of 3D knob-like Bi₂WO₆ with 2D BiOBr nanosheets, forming a robust heterojunction. UV–Vis measurements revealed a band gap of 2.6 eV for the Bi₂WO₆/BiOBr composite, positioned between the band gaps of pristine Bi₂WO₆ (2.54 eV) and BiOBr (2.82 eV), indicating a hybridized electronic structure resulting from interfacial electronic coupling and the redistribution of electronic states. Photoluminescence (PL) and valence band XPS measurements showed favorable band alignment, supporting enhanced charge separation. XPS analysis further confirmed interfacial electronic interactions through notable positive shifts in Bi 4f, W 4f, Br 3d, and O 1s binding energies. The heterostructure exhibited outstanding photocatalytic degradation efficiencies of 99.8 % for Rhodamine B in 27 min and 69.1 % for Ciprofloxacin during 30 min, outperforming the pristine materials. Scavenging tests identified <img>OH, h<sup>+</sup>, and <img>O₂<sup>−</sup> as the main reactive species. The photocatalyst retained over 94 % efficiency after five cycles, with XRD confirming phase stability. These findings highlight the Bi₂WO₆/BiOBr heterostructure as a promising and recyclable photocatalyst for environmental remediation under visible light.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"74 ","pages":"Article 107790"},"PeriodicalIF":6.3,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877030","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