Bioresource Technology最新文献_第9页

Enrichment of a heterotrophic nitrifying and aerobic denitrifying bacterial consortium: Microbial community succession and nitrogen removal characteristics and mechanisms.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-22 DOI: 10.1016/j.biortech.2024.132013

Yuqi Qi, Renchuan Fu, Chao Yan, Xiao Liu, Na Liu

{"title":"Enrichment of a heterotrophic nitrifying and aerobic denitrifying bacterial consortium: Microbial community succession and nitrogen removal characteristics and mechanisms.","authors":"Yuqi Qi, Renchuan Fu, Chao Yan, Xiao Liu, Na Liu","doi":"10.1016/j.biortech.2024.132013","DOIUrl":"10.1016/j.biortech.2024.132013","url":null,"abstract":"This study cultivated a bacterial consortium (S60) from landfill leachate that exhibited effective heterotrophic nitrification and aerobic denitrification (HN-AD) properties. Under aerobic conditions, the removal of NH4+-N reached 100 % when the S60 consortium utilised NH4+-N either as the sole nitrogen source or in combination with NO2--N and NO3--N. Optimal HN-AD performance was achieved with sodium acetate as a carbon source and a pH of 7.0-8.0, dissolved oxygen concentration of 4.0-5.0 mg/L, and a C/N ratio of 10. Furthermore, the presence of functional genes (amoA, hao, napA, nirK, nirS, nosZ), hydroxylamine oxidase, nitrate reductase, and nitrite reductase was confirmed in the S60 consortium. Drawing from these findings, two HN-AD pathways were delineated: NH4+-N → NH2OH → NO2--N → NO3--N → NO2--N → NO → N2O → N2 and NH4+-N → NH2OH → N2O → N2. Metagenomic binning analysis of the S60 consortium uncovered complete pathways for dissimilatory nitrate reduction and denitrification within Halomonas, Zobellella, Stutzerimonas, Marinobacter, and Pannonibacter. These findings offer new insights into the application of HN-AD bacteria and their collaborative nitrogen removal in environments with varying nitrogen sources.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132013"},"PeriodicalIF":9.7,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884878","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

Sustainable approach to polystyrene management and bioinsecticide production: Biodegradation by Tenebrio molitor larvae co-fed with residual biomass and bioactivity of frass pyrolysis bio-oil against insect pests.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-22 DOI: 10.1016/j.biortech.2024.132005

Rodrigo Iñaki Urrutia, Victoria Soledad Gutierrez, Jorge Omar Werdin-González

{"title":"Sustainable approach to polystyrene management and bioinsecticide production: Biodegradation by Tenebrio molitor larvae co-fed with residual biomass and bioactivity of frass pyrolysis bio-oil against insect pests.","authors":"Rodrigo Iñaki Urrutia, Victoria Soledad Gutierrez, Jorge Omar Werdin-González","doi":"10.1016/j.biortech.2024.132005","DOIUrl":"10.1016/j.biortech.2024.132005","url":null,"abstract":"Tenebrio molitor has gained attention as a potential solution for plastic pollution. This study explored the biodegradation of polystyrene (PS) by mealworms co-fed with rice bran (RB) under an optimized rearing scheme. The RB co-diet significantly increased PS consumption by two-fold compared to wheat bran (WB). Additionally, RB supported mealworm growth with favorable survival and feed conversion rates. Protein content of mealworms remained unchanged with PS plus RB, while significantly increased lipid stores and improved the fatty acid profile. Frass from PS (1) and biomass (2) intake was subjected to pyrolysis. Bio-oils from frass 2 exhibited insecticidal activity against Plodia interpunctella adults and Culex pipiens pipiens larvae. Finally, bio-oils demonstrated low toxicity to the aquatic non-target species Artemia salina, with up to three-fold selectivity towards Cx. p. pipiens. These findings highlight RB's role in PS management and the potential application of bio-oil as bioinsecticide.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132005"},"PeriodicalIF":9.7,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884880","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

Dimensionality reduction of high-solid anaerobic digestion flow pattern: Flow velocity distribution model and control strategy.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-22 DOI: 10.1016/j.biortech.2024.132014

Zhenni Pan, Yuying Hu, Tengfang Hu, Haoran Mu, Huai Z Li

引用次数: 0

Salinity stress and recovery of the algal-bacterial granular sludge (ABGS) system under the influence of different N-acyl-homoserine lactones (AHLs). 藻类-细菌颗粒污泥（ABGS）系统在不同 N-酰基-高丝氨酸内酯（AHL）影响下的盐度胁迫和恢复。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-21 DOI: 10.1016/j.biortech.2024.132003

Yanfang Chen, Lu Li, Wenbin Guo, Dao Zhou, Rongfan Chen, Dongbo Wang, Junfeng Su, Hongyu Wang

{"title":"Salinity stress and recovery of the algal-bacterial granular sludge (ABGS) system under the influence of different N-acyl-homoserine lactones (AHLs).","authors":"Yanfang Chen, Lu Li, Wenbin Guo, Dao Zhou, Rongfan Chen, Dongbo Wang, Junfeng Su, Hongyu Wang","doi":"10.1016/j.biortech.2024.132003","DOIUrl":"10.1016/j.biortech.2024.132003","url":null,"abstract":"The algal-bacterial granular sludge (ABGS) system was established to explore the effect of 1% salinity condition, determine the recovery process following salinity disturbance, and probe the impacts of two N-acyl-homoserine lactones (AHLs) on the system. Exposure to 1% salinity led to the reduction of filaments and an increase in TB-EPS contents within the ABGS system. The phosphorus removal performance of the ABGS system severely decreased at 1% salinity and did not restore fully during the subsequent recovery stage, demonstrating that salinity stress induced long-term inhibition. Oligotrophic bacteria were found to be enriched at 1% salinity, indicating the self-adaptation of the ABGS system against salinity stress. The addition of AHLs helped mitigate the inhibitory effect of salinity stress. Specifically, C6-HSL slowed down the decline in microbial diversity, while 3-oxo-C12-HSL weakened the inhibition on microalgae growth. This study provided novel insights into the effects of salinity stress and AHLs on ABGS systems.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132003"},"PeriodicalIF":9.7,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880777","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

Vermicomposting significantly reduced antibiotic resistance genes in cow manure even under high tetracycline concentrations.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-21 DOI: 10.1016/j.biortech.2024.132002

Zhonghan Li, Fengxia Yang, Bingjun Han, Ran Zhao, Ming Yang, Keqiang Zhang

{"title":"Vermicomposting significantly reduced antibiotic resistance genes in cow manure even under high tetracycline concentrations.","authors":"Zhonghan Li, Fengxia Yang, Bingjun Han, Ran Zhao, Ming Yang, Keqiang Zhang","doi":"10.1016/j.biortech.2024.132002","DOIUrl":"10.1016/j.biortech.2024.132002","url":null,"abstract":"Minimizing antibiotic resistance genes (ARGs) in livestock manure is crucial for curbing ARG dissemination. Vermicomposting can eliminate ARGs, but the effect of residual antibiotics on its reduction efficacy remains unclear. Herein, Eisenia foetida was employed to convert cow manure with varying concentrations of tetracycline (i.e., 0, 10, 100 mg/kg), aiming to explore the impact of tetracycline on ARG fate during vermicomposting for 35 days. Results showed that the total ARG abundance in vermicomposting (0.05 copies/16S rRNA copies) was significantly lower than that in natural composting (0.06 copies/16S rRNA copies) (p < 0.05). Notably, exposure to tetracycline increased total ARG abundance (p < 0.05) and stimulated microbial succession during vermicomposting, with some ARGs increasing and others decreasing. But ARGs removal in vermicomposting was still higher even under tetracycline stress than that in natural composting. Overall, vermicomposting is an effective method for reducing ARGs in cow manure even at high tetracycline levels.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132002"},"PeriodicalIF":9.7,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880780","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

Reactive oxygen species-mediated signal transduction and utilization strategies in microalgae.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-20 DOI: 10.1016/j.biortech.2024.132004

Dexin Tang, Xu Li, Lei Zhang, Pengying Xiao, Yudong Nie, Facheng Qiu, Zhiliang Cheng, Wensheng Li, Yongteng Zhao

{"title":"Reactive oxygen species-mediated signal transduction and utilization strategies in microalgae.","authors":"Dexin Tang, Xu Li, Lei Zhang, Pengying Xiao, Yudong Nie, Facheng Qiu, Zhiliang Cheng, Wensheng Li, Yongteng Zhao","doi":"10.1016/j.biortech.2024.132004","DOIUrl":"10.1016/j.biortech.2024.132004","url":null,"abstract":"Reactive oxygen species (ROS) are crucial in stress perception, the integration of environmental signals, and the activation of downstream response networks. This review emphasizes ROS-mediated signaling pathways in microalgae and presents an overview of strategies for leveraging ROS. Eight distinct signaling pathways mediated by ROS in microalgae have been summarized, including the calcium signaling pathway, the target of rapamycin signaling pathway, the mitogen-activated protein kinase signaling pathway, the cyclic adenosine monophosphate/protein kinase A signaling pathway, the ubiquitin/protease pathway, the ROS-regulated transcription factors and enzymes, the endoplasmic reticulum stress, and the retrograde ROS signaling. Moreover, this review outlines three strategies for utilizing ROS: two-stage cultivation, combined stress with phytohormones, and strain engineering. The physicochemical properties of various ROS, together with their redox reactions with downstream targets, have been elucidated to reveal the role of ROS in signal transduction processes while delineating the ROS-mediated signal transduction network within microalgae.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132004"},"PeriodicalIF":9.7,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875524","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

Evaluating value-added biochemical and biodiesel production from Chlorococcum humicolo algal biomass in phycoremediation of textile dye effluents.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-20 DOI: 10.1016/j.biortech.2024.132009

M Muthukumaran, K Gurukasi Rajan

{"title":"Evaluating value-added biochemical and biodiesel production from Chlorococcum humicolo algal biomass in phycoremediation of textile dye effluents.","authors":"M Muthukumaran, K Gurukasi Rajan","doi":"10.1016/j.biortech.2024.132009","DOIUrl":"10.1016/j.biortech.2024.132009","url":null,"abstract":"This study investigates the potentials of Chlorococcum humicolo algal biomass for the extraction of valuable biochemical and biodiesel production, with focus on the phycoremediation of textile dye effluents. The alga was cultivated in three media: CFTRI medium, combined dye effluent, and dye bath effluent in the laboratory. The highest cell count (254 × 104 cells/ml) and lowest oil content (16.6 %) were observed in CFTRI medium, while the combined dye effluent yielded the highest biomass (2.8 g/L dry weight (DW)) and oil content (26 %). Dye bath effluent produced intermediate results with 2.0 g/L DW biomass and 24 % oil content. Biochemical analysis revealed that algae grown in dye bath effluent from High Rate Algal Pond (HRAP) contained the highest levels of lipids (45.00 mg/106 cells), β-carotene (0.5683 µg/106 cells), proteins (9.89 mg/106 cells), and chlorophyll 'a' (0.9890 µg/106 cells). GC-MS analysis of the algal oil's FAME profile showed a high proportion (up to 94 %) of saturated fatty acids, making it an excellent candidate for biodiesel production. Despite its better lipid content, C. humicolo demonstrates dual benefits for wastewater remediation and biofuel generation.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132009"},"PeriodicalIF":9.7,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875516","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

High-rate nitrogen and phosphorus removal in a sulfur and pyrrhotite modified foam concrete constructed wetland

IF 11.4 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-20 DOI: 10.1016/j.biortech.2024.132008

Yiming Bu, Ming Song, Gaopan Huang, Changxin Chen, Ruihua Li

{"title":"High-rate nitrogen and phosphorus removal in a sulfur and pyrrhotite modified foam concrete constructed wetland","authors":"Yiming Bu, Ming Song, Gaopan Huang, Changxin Chen, Ruihua Li","doi":"10.1016/j.biortech.2024.132008","DOIUrl":"https://doi.org/10.1016/j.biortech.2024.132008","url":null,"abstract":"In order to develop constructed wetland (CW) with high-rate N and P removal, sulfur and pyrrhotite modified foam concrete (SPFC) was prepared and used as a substrate to construct CW (SPFC-CW). At hydraulic retention time 6 h, SPFC-CW achieved effluent total nitrogen (TN) 9.96 mg/L and PO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">3-</ce:sup>-P 0.11 mg/L as influent TN and PO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">3-</ce:sup>-P were 24.52 and 1.04 mg/L, respectively. TN and PO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">3-</ce:sup>-P removal rates of SPFC-CW were 21.8 and 1.4 g/m<ce:sup loc=\"post\">2</ce:sup>d, respectively. Many precipitates with high content of Ca and P attached on SPFC. <ce:italic>Sulfurimonas</ce:italic> was the most dominant bacterium, and its relative abundances at upper, middle and bottom of SPFC-CW were 53.8 %, 68.4 % and 87.3 %, respectively. SPFC could slowly release S<ce:inf loc=\"post\">n</ce:inf><ce:sup loc=\"post\">2-</ce:sup> and S<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf><ce:sup loc=\"post\">2-</ce:sup>, which had higher autotrophic denitrification rate than pyrrhotite and sulfur, and more Ca<ce:sup loc=\"post\">2+</ce:sup> than foam concrete. In SPFC-CW sulfur autotrophic denitrification and Ca-P precipitation were the major N and P removal processes, respectively.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"34 1","pages":""},"PeriodicalIF":11.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874864","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

Pyrrhotite promote aerobic granular sludge formation in dye wastewater: pH, interfacial free energy, and microbial community evolution.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-19 DOI: 10.1016/j.biortech.2024.131922

Wenfang Zhu, Fangyuan Chen, Lei Ye, Xinyue Wang, Yan Tang, Yongchao Li, Yali Song

{"title":"Pyrrhotite promote aerobic granular sludge formation in dye wastewater: pH, interfacial free energy, and microbial community evolution.","authors":"Wenfang Zhu, Fangyuan Chen, Lei Ye, Xinyue Wang, Yan Tang, Yongchao Li, Yali Song","doi":"10.1016/j.biortech.2024.131922","DOIUrl":"10.1016/j.biortech.2024.131922","url":null,"abstract":"This study introduces a technique utilizing natural pyrrhotite powder as a nucleating agent in four sequencing batch reactors (SBRs) for the treatment of dye wastewater. Through analysis of various factors including pH, pyrrhotite surface free energy, sludge zeta potential, and shifts in microbial communities, the mechanism by which pyrrhotite facilitates the formation of aerobic granular sludge (AGS) is elucidated. Over 140 days of continuous operation under neutral conditions, natural pyrrhotite rapidly cultivated AGS under neutral conditions. The structure of the sludge was compact and the settling properties were satisfactory (SVI30/SVI5 close to 1). Reductions in both sludge zeta potential and interfacial free energy of pyrrhotite correlated with increased hydrophobicity of AGS, leading to enhanced sludge aggregation. Changes in pH, sludge interfacial free energy, and zeta potential were found to influence the microbial community composition and diversity within the sludge.This study provides a novel approach for dye wastewater treatment.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131922"},"PeriodicalIF":9.7,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870689","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

Membrane photobioreactor for biogas capture and conversion - Enhanced microbial interaction in biofilm.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-12-18 DOI: 10.1016/j.biortech.2024.131999

Baorui Zhang, Jianbo Liu, Chen Cai, Yan Zhou

{"title":"Membrane photobioreactor for biogas capture and conversion - Enhanced microbial interaction in biofilm.","authors":"Baorui Zhang, Jianbo Liu, Chen Cai, Yan Zhou","doi":"10.1016/j.biortech.2024.131999","DOIUrl":"10.1016/j.biortech.2024.131999","url":null,"abstract":"The urgency to mitigate greenhouse gas emissions has driven interest in sustainable biogas utilization. This study investigates a 1 L enclosed membrane photobioreactor (MPBR) using a microalgae-methanotroph coculture for biogas capture. Operating with a hydraulic and solid retention time of 7 days and a biogas loading rate of 2.7 L /day, the introduction of gas membrane module increased CO2-C and CH4-C uptake rates by 12 % and 50 %, respectively. Biofilm formation on the membrane surface enhanced system performance, with imaging analyses revealing methanotroph predominantly located near the membrane surface and photosynthetic microorganisms distributed throughout. Metagenomic analysis showed shifts in key metabolic pathways, including increased abundance of soluble methane monooxygenase genes and enhanced vitamin B synthesis in the biofilm. These findings highlight the spatial organization and metabolic interactions in methanotroph-microalgae coculture system, providing insights into the role of membrane-induced biofilms in improving MPBR performance for sustainable biogas utilization.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131999"},"PeriodicalIF":9.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870683","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