{"title":"Analysis of lead contamination sources in roadside soil via the isotope tracing method","authors":"Aihua Yu, Qiyue Yang, Beibei Xu, Yu Yang, Zhijian Ren, Kangjian Li","doi":"10.1016/j.jece.2024.114205","DOIUrl":"10.1016/j.jece.2024.114205","url":null,"abstract":"<div><div>In addition to industrial contamination sources, road traffic sources are becoming major sources of potentially toxic elements (PTEs) contamination in soil. The PTEs contaminants generated during transport mainly include lead (Pb) and other elements. In this study, to clarify the sources of Pb in the roadside atmosphere and soil and their relative contributions, roadside atmospheric dustfall, sediment and soil samples were collected in industrial and nonindustrial areas, and the Pb isotope values of the samples were determined via inductively coupled plasma<img>mass spectrometry (ICP<img>MS). The sources of Pb in the roadside atmosphere and soil samples were quantified via isotope tracing. The results revealed that vehicle emissions contributed the most to Pb in the roadside atmosphere, followed by road sediment and natural atmospheric dustfall, with contributions ranging from 43.5 % to 48.9 %, 35.3–39.8 %, and 15.8–16.7 %, respectively. Roadside atmospheric dustfall contributed the most to Pb in roadside soil, followed by road sediment. Among these sources, roadside atmospheric dustfall and road sediment contributed 68.3–68.4 % and 31.6–31.7 %, respectively, in nonindustrial areas and 61.2–61.3 % and 38.7–38.8 %, respectively, in industrial areas. The results of this study provide a basis for preventing and controlling Pb pollution in roadside soils.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114205"},"PeriodicalIF":7.4,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315091","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}
Shuang Liu , Nan Zhao , Liyuan Zheng , Richard I. Foster , Wonseok Yang , Zhe Wang , Yuexiang Lu
{"title":"Enhanced visible light photocatalytic activity of Pt cluster modified carbon nitrides for U(VI) removal","authors":"Shuang Liu , Nan Zhao , Liyuan Zheng , Richard I. Foster , Wonseok Yang , Zhe Wang , Yuexiang Lu","doi":"10.1016/j.jece.2024.114211","DOIUrl":"10.1016/j.jece.2024.114211","url":null,"abstract":"<div><div>Photocatalysis has been regarded as one of the effective methods of removing U(VI) from radioactive wastewater in recent years, due to the benefits of being environmentally friendly and efficient. In this work, a Pt cluster modified carbon nitride photocatalyst (Pt-CN) was synthesized in zinc chloride molten salt. The photocatalysts were characterized by XRD, IR, XPS, UV–vis, PL and EIS. The result demonstrated that the doping of Pt makes Pt-CN show higher electronic conductivity and better charge separation and migration, leading to an enhanced photocatalytic activity and faster kinetics compared with bulk graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>). Moreover, for uranium contained solution photocatalytic treatment, Pt-CN reached 94.6 % removal efficiency after 300 min of illumination with Xe light, and the kinetics improved by a factor of three compared to that of g-C<sub>3</sub>N<sub>4</sub>. Furthermore, the good reusability and photostability of the Pt-CN was confirmed as the removal efficiency remained at 83.7 % even after being recycled and reused five times. The photocatalytic reaction product was characterized as (UO<sub>2</sub>)O<sub>2</sub>·2 H<sub>2</sub>O, and the mechanism was deduced as uranium species reacting with H<sub>2</sub>O<sub>2</sub> generated by light illumination in an open system. This molten salt one-step synthesis and Pt doping method and the performance of U(VI) extraction in air showed a promising potential for the application of Pt-CN for U(VI) extraction and removal from water.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114211"},"PeriodicalIF":7.4,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323879","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}
Wen-Ze Li , Yi Liu , Zhen-Yu Wang , Xian-Chen Meng , Peng Zheng , Jian Luan
{"title":"Fabrication of C and N co-doped CdS semiconductor photocatalysts derived from a novel Cd-MOF for enhancing photocatalytic performance","authors":"Wen-Ze Li , Yi Liu , Zhen-Yu Wang , Xian-Chen Meng , Peng Zheng , Jian Luan","doi":"10.1016/j.jece.2024.114204","DOIUrl":"10.1016/j.jece.2024.114204","url":null,"abstract":"<div><p>The narrow bandgap value and long lifetime of photo generated charges make CdS exhibit higher photocatalytic activity compared to other semiconductor catalysts. Given the excellent optoelectronic properties of CdS, a novel 2D cadmium-organic framework (Cd-MOF) was obtained by solvothermal method, which was served as a precursor template in this paper. C and N co-doped CdS-T (T = 600/800/1000) semiconductor materials were successfully prepared by chemical deposition method under different high temperatures. The as-prepared materials had been characterized in detail. Furthermore, the Cd-MOF and CdS-T were used to conduct the photocatalytic activity of organic dyes. Among them, CdS-800 showed excellent photocatalytic degradation effects on five organic dyes, especially on RB with the photocatalytic degradation efficiency of 98.87 %, which was significantly improved 6.5 times compared to Cd-MOF (58.23 %). Free radical capture experiments have shown that •O<sub>2</sub><sup>−</sup> play a dominant role in the photocatalytic process. In addition, UV–vis diffuse reflection, photoluminescence (PL), photoelectrochemical (PEC) testing and density functional theory (DFT) calculations had shown that CdS-800 could effectively delay the recombination of photo generated charges, improve the rapid migration and separation of photo generated carriers, and enhance photocatalytic activity. This work provides new ideas for the preparation of efficient and recyclable CdS semiconductor photocatalytic materials.</p></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114204"},"PeriodicalIF":7.4,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271140","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}
Yawei Shi, Yumei Xing, Chang Ma, Ya Sun, Guanghui Ding
{"title":"Degradation of aqueous organic pollutants by dual oxidant advanced oxidation processes: A comprehensive review","authors":"Yawei Shi, Yumei Xing, Chang Ma, Ya Sun, Guanghui Ding","doi":"10.1016/j.jece.2024.114174","DOIUrl":"10.1016/j.jece.2024.114174","url":null,"abstract":"<div><div>The advanced oxidation process (AOP) has been extensively studied for treatment of aqueous organic pollutants, and various oxidants have been utilized in AOP. In some cases, the combinations of two oxidants can help to boost the performance of AOP. In this review, the recent works concerning the applications of dual oxidant AOP for the degradation of organic pollutants have been summarized comprehensively. Various dual oxidant systems have been discussed, including O<sub>3</sub>/peroxides, O<sub>3</sub>/persulfates, peroxides/persulfates, periodate/peroxides, permanganate-based, ferrate-based and others. For each dual oxidant system, the reaction mechanisms and synergy effects as well as the effects of oxidant dosage and pH have been discussed in detail. Catalysts and/or external energy sources helped to enhance the performance of dual oxidant systems, which have also been summarized and discussed systematically. This review further highlights the current achievements and hurdles for dual oxidant AOPs, and also proposes recommendations for future works, such as more attentions on pollutant-specific performances of these systems and applications for real wastewater treatment, further investigations on the performances of new catalysts and cost analysis as well as more focus on the specific properties of dual oxidant systems.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114174"},"PeriodicalIF":7.4,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314279","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}
You-Ren Lai , Xiao-Xuan Hou , Su-Chun How , Ta-Hsien Lin , Steven S.-S. Wang
{"title":"Development of two-dimensional amyloid fibril/carboxymethyl cellulose hybrid membranes for effective adsorption of hexavalent chromium","authors":"You-Ren Lai , Xiao-Xuan Hou , Su-Chun How , Ta-Hsien Lin , Steven S.-S. Wang","doi":"10.1016/j.jece.2024.114134","DOIUrl":"10.1016/j.jece.2024.114134","url":null,"abstract":"<div><div>Amyloid fibrils (AFs) are protein aggregates with highly ordered fibrillar structures and can be formed via self-assembly of proteins under appropriate conditions. Owing to the unique properties of AFs, e.g., high surface-to-volume ratio and versatile functional groups, they offer abundant binding sites for the efficient adsorption of hexavalent chromium (Cr(VI)). This study was aimed at examining the performance of two-dimensional AF-based hybrid membranes for adsorbing Cr(VI). First, AF/carboxymethyl cellulose (AF/CMC) hybrid membranes were synthesized via chemical crosslinking coupled with phase inversion, followed by investigating the synthesis mechanism using Fourier transform infrared spectroscopy. Our results revealed that the surface microstructures and mechanical properties of the hybrid membranes could be affected by the AF:CMC mass ratio of the membrane. The porosity and ζ-potential of hybrid membranes were found to be dependent on both pH value and membrane composition. Analyses of the kinetics and thermodynamic behavior of Cr(VI) adsorption on the AF/CMC hybrid membranes revealed that the initial adsorption rate and maximum adsorption capacity were determined to be ∼149.20 mg g<sup>–1</sup> h<sup>–1</sup> and ∼311.11 mg g<sup>–1</sup>, respectively. The Cr(VI) removal percentage of hybrid membrane with high CMC content was found to remain at >75 % after five successive adsorption-desorption cycles. Finally, the mechanism and interactions involved in the adsorption of Cr(VI) on the hybrid membrane were further investigated via thermodynamic analysis and X-ray photoelectron spectroscopy. This study provides an excellent example of harnessing AF-based membranes in water remediation, highlighting the potential of AF-based hybrid materials for wastewater treatment applications.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114134"},"PeriodicalIF":7.4,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311473","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}
Meiling Wang , Xiaochun Liu , Kebin Li , Wenting Huo , Hong Wei , Hongna Zhang , Nannan Zhong , Hai-Ying Jiang
{"title":"Visible-light-assisted peroxymonosulfate activation using MIL-88A(Fe)/BiOI heterojunction composite to drive charge transport for eliminating acid red 18","authors":"Meiling Wang , Xiaochun Liu , Kebin Li , Wenting Huo , Hong Wei , Hongna Zhang , Nannan Zhong , Hai-Ying Jiang","doi":"10.1016/j.jece.2024.114210","DOIUrl":"10.1016/j.jece.2024.114210","url":null,"abstract":"<div><div>A novel rod-shaped MIL-88A(Fe)/BiOI heterojunction composite is fabricated by an in-suit chemical deposition method for visible-light-assisted peroxymonosulfate activation to eliminate AR18 (acid red 18). A series of <em>x</em>%MIL-88A(Fe)/BiOI are obtained according to the mass ratio of MIL-88A(Fe) to BiOI. Among them, 30 %MIL-88A(Fe)/BiOI could remove 97.79 % AR18 within 40 minutes. The reaction parameters on this process are investigated, such as PMS concentration, catalyst dosage, initial pH and dye concentration. The optimal conditions are determined to be [catalyst]= 1 g·L<sup>−1</sup>, [PMS]=1 mM, pH=7.02. The scavenging experiments and EPR analysis manifest that <sup>1</sup>O<sub>2</sub> is the main active species for AR18 degradation. In accordance with the band structure, active species, XPS, PL, EIS and photocurrent response, the Z-scheme electron transfer path of the composite catalyst is proved under 500 W (λ > 420 nm) Xenon lamp irradiation. In the end, the stability and universality of the composite catalyst in practical application are evaluated by three cyclic tests and inorganic anion experiments. This work provides valuable guidance for synthesizing efficient and stable MOF based heterojunction photocatalysts.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114210"},"PeriodicalIF":7.4,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319590","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}
Yuefeng Chen , Shixing Wang , Dawei Xiang , Manying Zhu , Xiang Liu , Rong Zhu , Hongliang Liu , Likang Fu
{"title":"A novel amidoxime-functionalized covalent organic framework adsorbent for efficient lead ion removal: Synthesis and adsorption mechanism","authors":"Yuefeng Chen , Shixing Wang , Dawei Xiang , Manying Zhu , Xiang Liu , Rong Zhu , Hongliang Liu , Likang Fu","doi":"10.1016/j.jece.2024.114206","DOIUrl":"10.1016/j.jece.2024.114206","url":null,"abstract":"<div><div>Lead ions are highly toxic heavy metal ions and Pb(II) in wastewater threatened seriously human health and environment. Therefore, an effective adsorbent must be developed to remove lead ions from wastewater. In this study, a polycrystalline amidoxime covalent organic framework (DBCC-NHOH) is synthesized by a post-modification method for the elimination of Pb(II) from wastewater. The successful preparation of adsorbent (DBCC-NHOH) is demonstrated by the oxygen appearance in SEM-EDS pattern and conversion of -C≡N to C=N-O and C-N in the FT-IR pattern. DBCC-NHOH is a crystalline porous material and its pore size, specific surface area and pore volume are 3.419 nm, 28.154 m<sup>2</sup>/g and 4.2ⅹ10<sup>−8</sup> m<sup>3</sup>/g respectively. The optimum conditions for the adsorption of Pb(II) by DBCC-NHOH are temperature 298 K, time 180 min, and pH 5. The maximum adsorption of DBCC-NHOH was 221.37 mg/g. Kinetic and thermodynamic investigations indicate that adsorption of Pb(II) by DBCC-NHOH is a monolayer chemisorption and exothermic process. Selectivity experiments indicate that DBCC-NHOH can adsorb Pb(II) efficiently and selectively in complex multi-ion systems. In addition, the adsorption percentage of DBCC-NHOH remained up to 83.20 % after five adsorption-desorption experiments. The XPS and FT-IR analyses and DFT results indicated that DBCC-NHOH utilized amidoxime function group to realize the high efficiency of Pb(II) adsorption by electrostatic attraction and chelation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114206"},"PeriodicalIF":7.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314995","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}
{"title":"BiOCl-PVDF nanofibrous membrane for synergic oil-water separation and degradation of dye","authors":"Imdangtila Kichu, Debarun Dhar Purkayastha","doi":"10.1016/j.jece.2024.114209","DOIUrl":"10.1016/j.jece.2024.114209","url":null,"abstract":"<div><div>Polymeric membranes have garnered remarkable attention, attributed to the significant breakthrough in the filtration of oily wastewater. However, the major setbacks of pristine polymeric membranes include susceptibility to fouling and chemical instability. Addressing such issues, this work focusses in the modification of polymer membranes using a metal oxyhalide, such as Bismuth oxychloride (BiOCl). This modification not only enhances water purification capabilities but also strengthens the membrane, protecting it from environmental deterioration and extending its lifespan. BiOCl was integrated into an electrospun pristine nanofibrous polymeric membrane using hydrothermal technique. The synthesized membrane matrix displayed superhydrophilicity and underwater superoleophobicity, effectively separating oil-in-water mixtures and emulsions. Moreover, BiOCl was effectively utilized to assess organic pollutant adsorption and degradation through photocatalysis. In addition, the membrane exhibited exceptional recyclability and withstood harsh conditions, contributing to its mechanical stability. The numerous advantages, enhance the effectiveness of BiOCl modified membrane in water pollution remediation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114209"},"PeriodicalIF":7.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323762","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}
Tan Phat Vo , Soroosh Danaee , Chawalit Chaiwong , Bao Tran Pham , Nature Poddar , Mikael Kim , Unnikrishnan Kuzhiumparambil , Chris Songsomboon , Mathieu Pernice , Huu Hao Ngo , Peter J. Ralph , Phong H.N. Vo
{"title":"Microalgae-bacteria consortia for organic pollutants remediation from wastewater: A critical review","authors":"Tan Phat Vo , Soroosh Danaee , Chawalit Chaiwong , Bao Tran Pham , Nature Poddar , Mikael Kim , Unnikrishnan Kuzhiumparambil , Chris Songsomboon , Mathieu Pernice , Huu Hao Ngo , Peter J. Ralph , Phong H.N. Vo","doi":"10.1016/j.jece.2024.114213","DOIUrl":"10.1016/j.jece.2024.114213","url":null,"abstract":"<div><div>Organic pollutants (OPs) discharged via wastewater can severely impact public health, natural habitat, and environment in long term. The microalgae-bacteria consortia (MBC) demonstrates its potential as a sustainable bioremediation method for organic pollutants remediation from wastewater. The overarching goal of this study is to review (i) the formation of microalgae and bacteria consortia, (ii) the mechanism of MBC in OCs removal, (iii) the effects of operating conditions on the treatment efficiency, and (iv) the omics approach of MBC for removing OCs in wastewater. The review provides further insights into the application of omics techniques to identify microalgae-bacteria interaction in the consortia. Transcriptomics and metabolomics have elucidated the response of MBC to the impact of culturing conditions and presence of OCs in wastewater. Metagenomics identifies the four dominating-algal strains and observing microbial dynamics during ciprofloxacin treatment. The data of omics approach provide a strong support for upscaling MBC for OCs remediation in wastewater.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114213"},"PeriodicalIF":7.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2213343724023443/pdfft?md5=54a5cec19cc0fabe2f4f86572aa68ca6&pid=1-s2.0-S2213343724023443-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanbo Liu , Jing Zhu , Weirun Li , Binghan Xie , Guoyu Zhang , Yi Ding , Feng Liu , Haili Tan , Yuhong Jia , Hong You , Zhipeng Li
{"title":"Mechanism of membrane fouling mitigation by microalgae biofilm formation for low C/N mariculture wastewater treatment: EPS characteristics, composition and interfacial interaction energy","authors":"Yanbo Liu , Jing Zhu , Weirun Li , Binghan Xie , Guoyu Zhang , Yi Ding , Feng Liu , Haili Tan , Yuhong Jia , Hong You , Zhipeng Li","doi":"10.1016/j.jece.2024.114146","DOIUrl":"10.1016/j.jece.2024.114146","url":null,"abstract":"<div><p>Membrane fouling is considered one of the main limitations of membrane bioreactor (MBR) in wastewater treatment applications, including low C/N aquaculture wastewater. Although much research has focused on the integration of MBR with bacterial biofilm, there has been limited exploration into the mitigation mechanism of membrane fouling by microalgae biofilm. In this study, extracellular polymeric substances (EPS) before and after the formation of microalgae biofilm were compared, leading to the conclusion that the microalgae biofilm formation could reduce membrane fouling potential of EPS, thereby mitigating membrane fouling. EPS content and fluorescence components analysis indicated that microalgae biofilm formation could effectively reduce protein to polysaccharide ratios (PN/PS) of three types of EPS (soluble EPS (S-EPS), loosely bound EPS (LB-EPS), and tightly bound EPS (TB-EPS)), lowering the membrane fouling potential associated with protein substances, especially tryptophan-like protein. Moreover, the analysis of molecular weight (MW) suggested that microalgae biofilm could considerably decrease the MW of both S-EPS and LB-EPS, thus mitigating the influence of high MW substances on membrane fouling. Meanwhile, the precise composition of EPS revealed a reduction in hydrophobic alkanes and recalcitrant aromatics, which often lead to membrane fouling. Furthermore, the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory further highlighted that microalgae biofilm weakened the interfacial interaction energy between the three EPS and membrane to mitigate membrane fouling. Therefore, this study provides a comprehensive elucidation of how microalgae biofilm formation mitigates membrane fouling, offering theoretical support for utilizing microalgae biofilm MBR in treating low C/N mariculture wastewater.</p></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114146"},"PeriodicalIF":7.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271147","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}