Bioresource Technology最新文献_第3页

Novel mixotrophic denitrification biofilter for efficient nitrate removal using dual electron donors of polycaprolactone and thiosulfate. 利用聚己内酯和硫代硫酸盐双重电子供体高效去除硝酸盐的新型混养反硝化生物滤池。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-16 DOI: 10.1016/j.biortech.2024.131836

Ruikang Wang, Wei Zeng, Haohao Miao, Qingteng Gong, Yongzhen Peng

{"title":"Novel mixotrophic denitrification biofilter for efficient nitrate removal using dual electron donors of polycaprolactone and thiosulfate.","authors":"Ruikang Wang, Wei Zeng, Haohao Miao, Qingteng Gong, Yongzhen Peng","doi":"10.1016/j.biortech.2024.131836","DOIUrl":"10.1016/j.biortech.2024.131836","url":null,"abstract":"A novel mixotrophic denitrification biofilter for nitrate removal using polycaprolactone and thiosulfate (MD-PT) as electron donors was investigated. MD-PT achieved high nitrate removal efficiency of approximately 99.8 %. The nitrate removal rates of MD-PT reached 1820 g N/m3/d, which was 304 g N/m3/d higher than that of autotrophic denitrification biofilter using thiosulfate (AD-T). Autotrophic and heterotrophic denitrification pathways in MD-PT were responsible for 67.6-94.5 % and 4.7-32.4 % of the nitrate removal, respectively. The production of SO42- in MD-PT was lower than that in AD-T, and the effluent pH was maintained at approximately 7.3 without acid-base neutralization. The abundance of key genes involved in carbon, nitrogen, and sulfur transformation was enhanced, which improved the nitrate removal of MD-PT. Alicycliphilus and Simplicispira related to organic compounds degradation were enriched after the addition of polycaprolactone. This research provided new insights into mixotrophic denitrification systems.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131836"},"PeriodicalIF":9.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666516","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

Enhancing CO₂-reduction methanogenesis in microbial electrosynthesis: Role of oxygen-containing groups on carbon-based cathodes. 增强微生物电合成中的二氧化碳还原甲烷生成：碳基阴极上含氧基团的作用。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-16 DOI: 10.1016/j.biortech.2024.131830

Xuejiao Qi, Xuan Jia, Mingxiao Li, Meiying Ye, Yufang Wei, Fanhua Meng, Shanfei Fu, Beidou Xi

{"title":"Enhancing CO2-reduction methanogenesis in microbial electrosynthesis: Role of oxygen-containing groups on carbon-based cathodes.","authors":"Xuejiao Qi, Xuan Jia, Mingxiao Li, Meiying Ye, Yufang Wei, Fanhua Meng, Shanfei Fu, Beidou Xi","doi":"10.1016/j.biortech.2024.131830","DOIUrl":"10.1016/j.biortech.2024.131830","url":null,"abstract":"Microbial electrosynthesis is a promising technology that recovers energy from wastewater while converting CO2 into CH4. Constructing a biocathode with both strong H2-mediated and direct electron transfer capacities is crucial for efficient startup and long-term stable CH4 production. This study found that introducing carboxyl groups onto the cathode effectively enhanced both electron transfer pathways, improving the reduction rate and coulombic efficiency of CH4 production and increasing the CH4 yield by 2-3 times. Carboxyl groups decreased the overpotential for H2 evolution and increased current density, thereby enhancing H2-mediated electron transfer. Additionally, carboxyl groups increased the relative abundance of Methanosaeta by 3%-10%, doubled the protein content in extracellular polymeric substances, and boosted the expression of cytochrome c-related genes, thereby enhancing direct electron transfer capacity. These findings present a novel and efficient approach for constructing a stable, high-performance biocathode, contributing to energy recovery and CO2 fixation.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131830"},"PeriodicalIF":9.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646105","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

Impact of carbon/nitrogen ratio on sequencing batch biofilm reactors initiated with different seed sludges for treating actual mariculture effluents. 碳氮比对使用不同种子淤泥启动的序批式生物膜反应器处理实际海水养殖废水的影响。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-16 DOI: 10.1016/j.biortech.2024.131838

Xiao-Yan Fan, Shi-Long Zhou, Yanling Yang, Shen-Bin Cao, Yue Niu, Meng-Yuan Zheng, Jun-Ru Zhao

{"title":"Impact of carbon/nitrogen ratio on sequencing batch biofilm reactors initiated with different seed sludges for treating actual mariculture effluents.","authors":"Xiao-Yan Fan, Shi-Long Zhou, Yanling Yang, Shen-Bin Cao, Yue Niu, Meng-Yuan Zheng, Jun-Ru Zhao","doi":"10.1016/j.biortech.2024.131838","DOIUrl":"10.1016/j.biortech.2024.131838","url":null,"abstract":"The impact of carbon/nitrogen (C/N) ratio on sequencing batch biofilm reactor (SBBR) initiated with different seed sludges for treating actual mariculture effluent was explored. Increasing the C/N ratio significantly enhanced the nitrogen removal efficiency, achieving average removal efficiency of 95% for ammonia nitrogen and 73% for total nitrogen at ratio of 30, while the impact of seed sludge was minimal. High C/N ratio promoted the secretion of tightly bound extracellular polymeric substances (TB-EPS), which showed significant correlation with nitrogen removal. Interactions between bacteria and archaea were enhanced and conditionally rare or abundant taxa were the keystone taxa. High C/N ratio inhibited the relative abundance of ammonia-oxidizing archaea (Candidatus_Nitrosopumilus) and bacteria (Nitrosomonas), but promoted the heterotrophic nitrification-aerobic denitrification bacteria (Halomonas). The expression of nitrogen removal functional genes significantly correlated with functional genera. This study emphasized the crucial role of high C/N ratios in biological nitrogen removal from actual mariculture effluent.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131838"},"PeriodicalIF":9.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666436","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

Model-based study of Yarrowia lipolytica cultivation on crude glycerol under different fermentation modes: Development of a membrane bioreactor process. 基于模型的不同发酵模式下在粗甘油上培养脂肪分解亚罗菌的研究：膜生物反应器工艺的开发。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-15 DOI: 10.1016/j.biortech.2024.131773

Asimina Tsirigka, Amalia Aggeli, Eleni Theodosiou, Antonios M Makris, Anastasios J Karabelas, Sotiris I Patsios

引用次数: 0

Metabolic Versatility of acetogens in syngas Fermentation: Responding to varying CO availability. 合成气发酵中乙炔原的代谢多功能性：应对不同的二氧化碳可用性。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-15 DOI: 10.1016/j.biortech.2024.131823

João P C Moreira, Lucília Domingues, Joana I Alves

引用次数: 0

Achieving efficient autotrophic nitrogen removal in anaerobic membrane bioreactor plus membrane aerated biofilm reactor by regulating nutrient ratios 在厌氧膜生物反应器加膜充气生物膜反应器中通过调节营养物比例实现高效自养脱氮。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-15 DOI: 10.1016/j.biortech.2024.131832

Yu-Lin Han, Ling-Dong Shi, He-Ping Zhao

{"title":"Achieving efficient autotrophic nitrogen removal in anaerobic membrane bioreactor plus membrane aerated biofilm reactor by regulating nutrient ratios","authors":"Yu-Lin Han, Ling-Dong Shi, He-Ping Zhao","doi":"10.1016/j.biortech.2024.131832","DOIUrl":"10.1016/j.biortech.2024.131832","url":null,"abstract":"<div><div>It is feasible to integrate an anaerobic membrane bioreactor with a membrane aerated biofilm reactor to efficiently implement the sulfate reduction, simultaneous nitrification and autotrophic denitrification process. However, the effect of parameters on nutrient removal and environmental impacts of the process are unclear. In this study, the reactor performance was mainly influenced by the chemical oxygen demand to sulfate (COD/S) ratio and the ammonium to sulfate (N/S) ratio in long-term operation. Significant models were developed to optimize the two factors using the response surface methodology. Under optimal conditions (COD/S ratio of 2.5 and N/S ratio of 0.3), the system could remove above 86 % COD, 99 % ammonium, and 92 % total inorganic nitrogen. Moreover, this process could reduce energy consumption by 30 % and global warming potential by 50 % compared with traditional anaerobic/oxic activated sludge process. These findings provide guidance for the application of this technology in sulfate-containing municipal sewage treatment.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131832"},"PeriodicalIF":9.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643592","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

CO2 removal from biogas improved stable treatment of low-alkalinity municipal wastewater using anaerobic membrane bioreactor 利用厌氧膜生物反应器从沼气中去除二氧化碳，改善了低碱度城市污水的稳定处理。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-15 DOI: 10.1016/j.biortech.2024.131821

Runda Du , Koichi Ando , Ruiping Liu , Liangwei Deng , Wenguo Wang , Yu-You Li

引用次数: 0

Enhancement of anaerobic digestion by adding elemental sulfur 通过添加元素硫加强厌氧消化。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-14 DOI: 10.1016/j.biortech.2024.131820

Zihao Qiao , Zezhi Chen , Huijuan Gong , Xiaofeng Guo , Huiqiang Yu , Lu Chen

{"title":"Enhancement of anaerobic digestion by adding elemental sulfur","authors":"Zihao Qiao , Zezhi Chen , Huijuan Gong , Xiaofeng Guo , Huiqiang Yu , Lu Chen","doi":"10.1016/j.biortech.2024.131820","DOIUrl":"10.1016/j.biortech.2024.131820","url":null,"abstract":"<div><div>In this study, a new approach to enhance methane (CH4) production from organic substrates in anaerobic digestion (AD) has been discovered. That is, the addition of elemental sulfur (S0) particles into the AD system promotes the synergistic growth of elemental sulfur disproportionation bacteria, acidogenic bacteria and methanogenic archaea, thus facilitating hydrolysis, acidogenesis and methanogenesis. The efficacy of this AD enhancement pathway was confirmed in AD experiments with glucose as a model organic substrate. The results demonstrated that CH4 production in the AD system increased considerably with S0 dosages ranging from 20 mg/L to 300 mg/L. Two gas production peaks appeared at dosages of 20 mg/L and 180 mg/L, where the total CH4 production increased by 2.1 times and 2.5 times, respectively compared with the control group. However, inhibitory effect was observed for S0 dosages above 300 mg/L. The chemical states of S, the microbial community and the abundance of key functional enzymes in the AD system were analyzed. The results showed that S0 addition increased the relative abundance of Dethiobacteraceae, Caldatribacterium, Anaerolineaceae, Methanobacterium and Methanosaeta and considerably increased the abundance of key functional enzymes, such as dehydrogenase, D-glucosidic glucosidase, pyruvate synthase and acetyl-CoA deacetylase. The enrichment of these microorganisms and functional enzymes was strongly positively correlated with the production of volatile fatty acids and CH4, demonstrating that S0 addition effectively enhances methanogenesis during AD.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131820"},"PeriodicalIF":9.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637990","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

Impact of cellulolytic nitrogen-fixing composite inoculants on humification pathways and nitrogen cycling in kitchen waste composting. 纤维素分解固氮复合接种物对厨余堆肥中腐殖化途径和氮循环的影响。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-14 DOI: 10.1016/j.biortech.2024.131819

Haimin Li, Changqing Liu, Ji-Qin Ni, Guihua Zhuo, Yuhui Li, Yuyi Zheng, Guangyin Zhen

{"title":"Impact of cellulolytic nitrogen-fixing composite inoculants on humification pathways and nitrogen cycling in kitchen waste composting.","authors":"Haimin Li, Changqing Liu, Ji-Qin Ni, Guihua Zhuo, Yuhui Li, Yuyi Zheng, Guangyin Zhen","doi":"10.1016/j.biortech.2024.131819","DOIUrl":"10.1016/j.biortech.2024.131819","url":null,"abstract":"Low humification and nitrogen loss pose substantial challenges to the resource utilization in kitchen waste composting. This study investigated the effects of brown-rot fungi (BRF), cellulolytic nitrogen fixing bacteria (CNFB), and their composite microbial inoculants (CMI) during composting. Results indicated that microbial inoculants extended the thermophilic phase and enhanced cellulose degradation. Compared with the control, the degree of polymerization (HA/FA) in BRF, CNFB, and CMI was 2.28, 1.85, and 2.68 times higher, respectively, while increasing total nitrogen by 11.15%, 15.50%, and 19.73%. BRF and CMI primarily enhanced the Maillard humification pathway, while CNFB promoted the polyphenol humification pathway. Additionally, BRF enhanced nitrification and reduced denitrification, whereas CNFB and CMI improved nitrification, nitrogen fixation, and ammonification while reducing denitrification. Overall, BRF primarily promoted humification, while CNFB excelled in nitrogen retention. The CMI achieved optimal humification and nitrogen retention, indicating a potential sustainable solution for kitchen waste composting.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131819"},"PeriodicalIF":9.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637992","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

Two-stage carbon sequestration by Haematococcus pluvialis: Integrated research from small-scale to pilot-scale cultivation and data quality monitoring. 血球藻的两阶段碳固存：从小规模培养到中试规模培养和数据质量监测的综合研究。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-14 DOI: 10.1016/j.biortech.2024.131828

Shuai Guo, Feng Li, Jun Wang, Hantao Zhou, Ziyi Yuan, Renjing Yang, Hongwei Ke, Haifeng Chen, Chunhui Wang, Minggang Cai

{"title":"Two-stage carbon sequestration by Haematococcus pluvialis: Integrated research from small-scale to pilot-scale cultivation and data quality monitoring.","authors":"Shuai Guo, Feng Li, Jun Wang, Hantao Zhou, Ziyi Yuan, Renjing Yang, Hongwei Ke, Haifeng Chen, Chunhui Wang, Minggang Cai","doi":"10.1016/j.biortech.2024.131828","DOIUrl":"10.1016/j.biortech.2024.131828","url":null,"abstract":"A novel two-stage carbon sequestration strategy (3 % and 10 % CO2) was developed and its feasibility was comprehensively demonstrated by multiple methods (pilot-scale cultivation, kinetics, economics and carbon fixation analysis). It was also a safe, efficient and low-cost harvesting strategy. At the end of the culture, astaxanthin production and content increased 2.3 and 2.2 times, respectively. Sedimentation rate (SR) was introduced for the first time to evaluate microalgae culture methods. The SR reached 82.2 % after 2 h of standing. Pilot-scale cultivation was achieved outdoors, with the optimal photobioreactor being a 40 L tubular photobioreactor (T-PBRs), which individually achieved 3.1 g/L and 2.3 % biomass and astaxanthin content. The maximum rate of carbon sequestration (227.9 mg/L/d) was observed in 40 L T-PBRs. The cost of producing 1 kg of astaxanthin-enriched Haematococcus pluvialis (H. pluvialis) was only 17.5 USD. This study brings new perspectives to carbon sequestration and the development of astaxanthin markets.","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"131828"},"PeriodicalIF":9.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637994","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