Bioresource Technology最新文献_第6页

Construction and optimization of low carbon-to-nitrogen ratio-adapted Chlorococcum-Bacteria symbiosis for energy-efficient wastewater remediation 适应低碳氮比的绿球菌-细菌共生系统的构建与优化

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-28 DOI: 10.1016/j.biortech.2025.132601

Ru Yan , Han Ji , Zhuo-Chao Liu , Mei-Qi Ren , Shuai Wang , Li-Ming Yang , Dan Cui

{"title":"Construction and optimization of low carbon-to-nitrogen ratio-adapted Chlorococcum-Bacteria symbiosis for energy-efficient wastewater remediation","authors":"Ru Yan , Han Ji , Zhuo-Chao Liu , Mei-Qi Ren , Shuai Wang , Li-Ming Yang , Dan Cui","doi":"10.1016/j.biortech.2025.132601","DOIUrl":"10.1016/j.biortech.2025.132601","url":null,"abstract":"<div><div>This study developed a microalgae-bacteria symbiosis (MBS) system using <em>Chlorococcum robustum</em> AY122332.1 isolated from rare earth tailings wastewater to treat synthetic municipal wastewater. Systematic optimization identified a 1:1 bacteria-microalgae ratio (MBS 1) as optimal, achieving nearly 100 % removal of ammonia and 92.2 ± 0.6 % of chemical oxygen demand. Microbial community analysis identified significant enrichment of nitrogen-transforming consortia in MBS 1, particularly <em>Thauera</em> (7.43 % relative abundance), whose nitrite reductase activity and polyhydroxyalkanoate biosynthesis capacity enhanced simultaneous nitrification–denitrification. The optimized system showed superior stability with an elevated zeta potential (+17.72 mV) driven by protein-rich extracellular polymeric substances production and humic acid accumulation. These biopolymers facilitated microaggregate formation through ligand bridging and hydrophobic interactions, creating redox-stratified microenvironments that supported functional microbial niches. The synergistic interactions in the MBS system enabled efficient nutrient recovery while maintaining ecological resilience under carbon-limited conditions, providing new insights into sustainable wastewater bioremediation processes.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132601"},"PeriodicalIF":9.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reliable protocol using gradient boosting decision tree with limited experimental data to modify membrane surface for enhanced resilience and nitrogen removal in biofilm system 在有限的实验数据下，使用梯度增强决策树来修改膜表面以增强生物膜系统的弹性和脱氮能力

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-28 DOI: 10.1016/j.biortech.2025.132602

Jie Wang , Qi Shen , Senyao Zhang , Chunyan Yuan , Mingming Wang , Honghua Tu , Liang Feng , Feiyun Sun

{"title":"Reliable protocol using gradient boosting decision tree with limited experimental data to modify membrane surface for enhanced resilience and nitrogen removal in biofilm system","authors":"Jie Wang , Qi Shen , Senyao Zhang , Chunyan Yuan , Mingming Wang , Honghua Tu , Liang Feng , Feiyun Sun","doi":"10.1016/j.biortech.2025.132602","DOIUrl":"10.1016/j.biortech.2025.132602","url":null,"abstract":"<div><div>This study highlights the importance of advanced membrane modification optimization methods for Membrane biofilm reactors (MBfR). Using Response surface methodology (RSM) and Gradient Boosting Decision Tree (GBDT), a relationship between solution concentration, reaction time, and temperature versus membrane surface characteristics was established. The GBDT model accurately predicted surface roughness during training (R<sup>2</sup> = 0.994) and testing (R<sup>2</sup><sub>pred</sub> = 0.993), outperforming RSM (R<sup>2</sup> = 0.981, R<sup>2</sup><sub>pred</sub> = 0.763, RMSE = 8.302) with a low RMSE of 2.077. The optimal conditions (1 mg·L<sup>-1</sup> concentration, 5 h reaction time, 45 ℃) were used to modify membranes, which enhanced bio-attachment greatly. The optimized membrane achieved a nitrogen removal efficiency of 98.4 % in MBfR, performs better than the control one of 35.7 %. These results demonstrate that GBDT shows promising potential in optimizing membrane modification parameters, providing an effective strategy for enhancing MBfR performance through modelling and modification methods.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132602"},"PeriodicalIF":9.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights on microalgae-based technologies with potential impact on global methane budget – Perspectives for industrial applications 对全球甲烷预算有潜在影响的微藻技术的见解-工业应用前景

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-28 DOI: 10.1016/j.biortech.2025.132591

Leandro Madureira , Ana Soares , M. Salomé Duarte , Francisco Pereira , Diogo Francisco , Filipe Maciel , António A. Vicente , Vítor Vasconcelos , M. Alcina Pereira , Pedro Geada

{"title":"Insights on microalgae-based technologies with potential impact on global methane budget – Perspectives for industrial applications","authors":"Leandro Madureira , Ana Soares , M. Salomé Duarte , Francisco Pereira , Diogo Francisco , Filipe Maciel , António A. Vicente , Vítor Vasconcelos , M. Alcina Pereira , Pedro Geada","doi":"10.1016/j.biortech.2025.132591","DOIUrl":"10.1016/j.biortech.2025.132591","url":null,"abstract":"<div><div>The European Union’s Methane Action Plan outlined policies and targets supporting the Global Methane Pledge to cut CH<sub>4</sub> emissions by 30% by 2030, yet urgent implementation is needed to treat medium and diluted CH<sub>4</sub> streams. Microalgae-based technologies offer a groundbreaking solution, merging CH<sub>4</sub> mitigation with biomass valorization to drive sustainable industrial practices. This review examines three key applications: photosynthetic biogas upgrading, a viable alternative to physical/chemical methods, producing biomethane and valuable algal biomass; microalgae-methanotroph co-cultivation, a promising but underdeveloped method for diluted CH<sub>4</sub> streams; and CH<sub>4</sub>-producing microalgae, unveiling a novel route for biomethane production. Despite their potential, significant research gaps remain, particularly in reactor design, culture conditions, and large-scale viability. By addressing these challenges, microalgae could revamp CH<sub>4</sub> management, bridging environmental goals with bioeconomic progress. This review calls for policy updates, intensified research, and industrial engagement to unlock microalgae’s full potential in CH<sub>4</sub> mitigation and valorization.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132591"},"PeriodicalIF":9.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robust Saccharomyces cerevisiae by rational metabolic engineering for effective ethanol production from undetoxified steam-exploded corn stover hydrolysate 通过合理的代谢工程，从未解毒的蒸汽爆炸玉米秸秆水解物中有效地生产乙醇

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-28 DOI: 10.1016/j.biortech.2025.132605

Yilu Wu , Di Cai , Changsheng Su , Zicheng Liao , Gege Zhang , Yongjie Jiang , Yankun Wang , Yunxing Gao , Yicheng Liu , Tianwei Tan

{"title":"Robust Saccharomyces cerevisiae by rational metabolic engineering for effective ethanol production from undetoxified steam-exploded corn stover hydrolysate","authors":"Yilu Wu , Di Cai , Changsheng Su , Zicheng Liao , Gege Zhang , Yongjie Jiang , Yankun Wang , Yunxing Gao , Yicheng Liu , Tianwei Tan","doi":"10.1016/j.biortech.2025.132605","DOIUrl":"10.1016/j.biortech.2025.132605","url":null,"abstract":"<div><div>Lignocellulosic bioethanol production by <em>S.cerevisiae</em> is severely hampered by xylose assimilation and inhibitors. Aiming to solve these barriers, the xylose isomerase pathway was heterologously introduced into parental strain, followed by conducting the adaptive laboratory evolution. Meanwhile, the reduced glutathione and NADPH synthesis systems to reduce excess intracellular reactive oxygen species (ROS) were further enhanced. Results indicated the bioethanol production from undetoxified steam-exploded corn stover hydrolysate (SECSH) without any nutrients supplementation was improved using the customized strain. Up to 70.52 ± 0.38 g/L of bioethanol with yield of 0.450 g/g total sugars were obtained. This study provided an effective strategy combining genetic modification and adaptive laboratory evolution to simultaneously improve xylose assimilation and inhibitors’ tolerance of <em>S. cerevisiae</em>, providing a basis for large-scale lignocellulosic bioethanol production.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132605"},"PeriodicalIF":9.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Standard risk assessment methodology for quantifying potential risks in reusing wastewater treated by microalgae-based photorefinery 微藻光精炼厂废水回用潜在风险量化的标准风险评估方法

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-28 DOI: 10.1016/j.biortech.2025.132599

Silvia Hernández-Cuenca , J. González-Camejo , M. Pachés , F. Fatone , A.L. Eusebi

{"title":"Standard risk assessment methodology for quantifying potential risks in reusing wastewater treated by microalgae-based photorefinery","authors":"Silvia Hernández-Cuenca , J. González-Camejo , M. Pachés , F. Fatone , A.L. Eusebi","doi":"10.1016/j.biortech.2025.132599","DOIUrl":"10.1016/j.biortech.2025.132599","url":null,"abstract":"<div><div>This work proposes a methodology for quantifying the potential risks to human health associated with reusing wastewater treated in a microalgae-based photorefinery. Microbial risks were quantified using Quantitative Microbial Risk Assessment, while physico-chemical risks were assessed through a combination of Failure Mode and Effects Analysis with World Health Organisation recommendations. Experimental data were obtained from a pilot-scale microalgae-based system set in Italy. Acceptable risk levels (Disability-Adjusted Life Years < 10<sup>-6</sup>) were obtained for most parameters, demonstrating that wastewater reuse could be both technically and legally feasible. However, the strict Italian legal requirements on ammonium effluent concentrations complicated operations and reduced the amount of reclaimed water available for reuse. This study provides scientific evidence on the potential use of microalgae cultivation to produce reclaimed water, but improved control systems and safety measures should be implemented to mitigate the risks associated with pH, ammonium, and somatic coliphages.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132599"},"PeriodicalIF":9.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Commercial-scale co-composting of wood-derived biochar with source-selected organic fraction of municipal solid waste 商业规模的木材衍生生物炭与城市固体废物来源选择的有机部分共同堆肥

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-27 DOI: 10.1016/j.biortech.2025.132595

Elena Olivera-Begué , Daniel González , Joeri Kaal , Marta Camps-Arbestain , Antoni Sánchez

{"title":"Commercial-scale co-composting of wood-derived biochar with source-selected organic fraction of municipal solid waste","authors":"Elena Olivera-Begué , Daniel González , Joeri Kaal , Marta Camps-Arbestain , Antoni Sánchez","doi":"10.1016/j.biortech.2025.132595","DOIUrl":"10.1016/j.biortech.2025.132595","url":null,"abstract":"<div><div>This full-scale trial aims to systematically examine the effect of the addition (10 % DW ratio) of wood-derived biochar produced at 700 °C on the composting of source-selected organic fraction of municipal solid waste (OFMSW) and compare it with an identical treatment without biochar addition. The study mainly focused on (i) composting process performance, including compost quality, and (ii) gaseous emissions (ammonia, methane, nitrous oxide, volatile organic compounds (VOC) and odor emissions) from the two experimental piles, in which representative areas within each pile were identified as independent regions (n = 6) for sampling, obtaining over 1300 independent gas sampling data points. During the first 50 days, biochar contributed to a more sustained thermophilic temperature compared to the control (average 47 and 38 °C, respectively). Over the 80 days of composting, biochar significantly (p < 0.003) decreased methane (from 0.17 to 0.05 kg CH<sub>4</sub> Mg<sup>−1</sup> OFMSW) and ammonia (from 0.57 to 0.35 kg NH<sub>3</sub> Mg<sup>−1</sup> OFMSW) emissions. The differences in VOC emission from the two treatments were only significant (p < 0.001) during the maturation phase (from day 50 onwards) with average values of 35 and 175 g C-VOC day<sup>−1</sup>, for the biochar and control treatments, respectively. Odor emissions were smaller in the presence of biochar (1.1E + 0.6 vs. 1.9E + 0.6 ou Mg<sup>−1</sup> OFMSW). The agronomic value of the resultant biochar co-compost was similar to that of the control compost. Biochar can thus contribute to climate change mitigation, not only through CO<sub>2</sub> removal, but also through the reduction of non-CO<sub>2</sub> greenhouse gases emissions during composting, while also decreasing the odor impact of the plant on nearby residents.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132595"},"PeriodicalIF":9.7,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of lipid production in Tetradesmus dimorphus using response surface methodology using tannery wastewater for biodiesel production 利用响应面法优化利用制革废水生产生物柴油的二毛鼠脂质生产

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-26 DOI: 10.1016/j.biortech.2025.132585

Anuradha Devi , Vineeta Singh , Abhay Raj , Ganesh Dattatraya Saratale , Luiz Fernando Romanholo Ferreira , Sikandar I. Mulla , Ram Naresh Bharagava

{"title":"Optimization of lipid production in Tetradesmus dimorphus using response surface methodology using tannery wastewater for biodiesel production","authors":"Anuradha Devi , Vineeta Singh , Abhay Raj , Ganesh Dattatraya Saratale , Luiz Fernando Romanholo Ferreira , Sikandar I. Mulla , Ram Naresh Bharagava","doi":"10.1016/j.biortech.2025.132585","DOIUrl":"10.1016/j.biortech.2025.132585","url":null,"abstract":"<div><div>The management of industrial wastewaters and generation of sustainable energy resources are the two major challenges concerned with the global population and depleting fossil fuels. Tannery wastewater (TWW) is a major source of environmental pollution and human health hazardous if released without adequate treatment. The microalgal treatment of TWW among other approaches seems to be beneficial and effective as microalgae use TWW as nutrient source offering wastewater treatment while producing large biomass for biofuel production. Biomass and lipid content are the adequate criteria for higher biodiesel yield. In present study, <em>Tetradesmus dimorphus</em> was grown in TWW with an objective to treat TWW along with the generation of large biomass for biodiesel production and Response Surface Methodology (RSM) was used to optimize the biodiesel production taking into count the parameters such as wastewater concentrations, pH and photoperiod. Results showed that highest biomass and lipid content produced were 1.63 ± 0.02 g/L and 487 ± 11 mg/L, respectively with 213.80 ± 7 mg/L of biodiesel production. Gas Chromatography-Flame Ionization Detection (GC-FID) analysis of biodiesel obtained from <em>Tetradesmus dimorphus</em> lipids showed that it was made up of more than 40 % Methyl decanoate (C11:0) and Methyl erucate (C22:1). The interrelationships between selected parameters like STTWW concentrations, pH and photoperiods reflected the positive impact on lipid productivity as 3D contour depicted the maximum yield at 80 % wastewater concentration, pH 8 and 14 h of photoperiod. Study showed that microalgal treatment of TWW among the other approaches seems beneficial and effective to harness wastewater nutrients while producing valuable biomass for biodiesel production.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132585"},"PeriodicalIF":9.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchically engineered enzyme-packed bed reactor via 3D scaffold design and zwitterionic microenvironment for sustainable continuous catalysis 通过三维支架设计和两性离子微环境进行可持续连续催化的层次化酶填充床反应器

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-26 DOI: 10.1016/j.biortech.2025.132587

Jicheng Dong , Xinlong Zhang , Fang Cheng , Lijun Zhang , Huan Tang , Chunmei Li , Gang Cheng

{"title":"Hierarchically engineered enzyme-packed bed reactor via 3D scaffold design and zwitterionic microenvironment for sustainable continuous catalysis","authors":"Jicheng Dong , Xinlong Zhang , Fang Cheng , Lijun Zhang , Huan Tang , Chunmei Li , Gang Cheng","doi":"10.1016/j.biortech.2025.132587","DOIUrl":"10.1016/j.biortech.2025.132587","url":null,"abstract":"<div><div>Immobilized enzyme packed bed reactors have contributed significantly to green and sustainable chemistry, yet design strategies at both molecular and system levels are needed. In this study, polylactic acid scaffolds were printed using 3D printing. The microporous scaffold with a high specific surface area was obtained through an etching-activation process. The enzyme sources and polymer microenvironments of site-specific immobilized His-tagged penicillin G acylase were screened. The polysulfobetaine methacrylate microenvironment displayed better relative activities, affinity, storage stability, and thermal and pH tolerance of enzyme compared to the PEG microenvironments. Packed bed reactors were constructed using scaffolds with different pore sizes, and the space–time yields were investigated. The internal flow behavior was studied using flow-field simulation and average residence time distribution. This study not only provides a robust multi-level design strategy for immobilized enzyme packed bed reactors but also presents new protocols for medical wastewater treatment and penicillin production.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"431 ","pages":"Article 132587"},"PeriodicalIF":9.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering strategies for producing medium-long chain dicarboxylic acids in oleaginous yeasts 产油酵母生产中长链二羧酸的工程策略

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-26 DOI: 10.1016/j.biortech.2025.132593

Xin Wang , Mei-Li Sun , Lu Lin , Rodrigo Ledesma-Amaro , Kaifeng Wang , Xiao-Jun Ji

{"title":"Engineering strategies for producing medium-long chain dicarboxylic acids in oleaginous yeasts","authors":"Xin Wang , Mei-Li Sun , Lu Lin , Rodrigo Ledesma-Amaro , Kaifeng Wang , Xiao-Jun Ji","doi":"10.1016/j.biortech.2025.132593","DOIUrl":"10.1016/j.biortech.2025.132593","url":null,"abstract":"<div><div>Medium-long chain dicarboxylic acids (DCAs, C ≥ 6) are essential chemical raw materials, with wide applications in the chemical, pharmaceutical, material and food industries. However, the traditional chemical synthesis methods cause environmental pollution and are not in line with goals of sustainable development. With the development of synthetic biology, high-value-added DCAs can be biosynthesized from hydrophobic substrates (HSs) using suitable microorganisms. This review first summarizes the biosynthetic pathway of DCAs in oleaginous yeasts and then emphasizes the related engineering strategies for increasing the product yield, including promoter, enzyme, pathway, cell, fermentation, and downstream engineering. In addition, the challenges and development trends in the biosynthesis of DCAs are discussed, in light of the current progress, challenges, and trends in this field. Finally, guidelines for future research are proposed. Overall, this review systematically summarizes recent engineering strategies for DCAs production in oleaginous yeasts and offers valuable insights for future DCAs biosynthesis.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132593"},"PeriodicalIF":9.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of surface-functionalized structured polypropylene fillers for toluene removal in biotrickling filters 表面功能化结构聚丙烯填料去除生物滴滤中甲苯的性能

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-26 DOI: 10.1016/j.biortech.2025.132580

Chuwen Wang, Wenjun Liang, Jia Liu, Jingsu Yang, Jiamei Zheng

{"title":"Performance of surface-functionalized structured polypropylene fillers for toluene removal in biotrickling filters","authors":"Chuwen Wang, Wenjun Liang, Jia Liu, Jingsu Yang, Jiamei Zheng","doi":"10.1016/j.biortech.2025.132580","DOIUrl":"10.1016/j.biortech.2025.132580","url":null,"abstract":"<div><div>Fillers significantly affect the efficient operation of biotrickling filters (BTFs). Herein, structured polypropylene fillers modified with polydopamine (PDA) and cationic polyacrylamide (CPAM) were developed to reduce pressure loss and shorten the start-up period. Based on thermodynamics and the extended Derjaguin–Landau–Verwey–Overbeek theory, both modified fillers could improve biocompatibility. BTF with CPAM-modified filler had a shorter start-up period than PDA-modified filler. The maximum elimination capacity of the BTFs packed with PDA and CPAM-modified filler was 75.52 g·m<sup>−3</sup>·h<sup>−1</sup> and 78.62 g·m<sup>−3</sup>·h<sup>−1</sup>, respectively, at an inlet toluene loading rate of 97.26 g·m<sup>−3</sup>·h<sup>−1</sup> and an empty bed residence time of 33 s. CPAM-modified filler biofilms exhibited higher adhesion strength and extracellular polymeric substance content during early operation. Furthermore, coating differences affected the microbial community structure on the filler surface. The CPAM-modified filler demonstrated superior performance by enriching toluene-degrading bacteria and upregulating key catabolic genes during the start-up stage.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132580"},"PeriodicalIF":9.7,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0