Bioresource Technology最新文献_第5页

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":"<div><div>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 (<em>Candidatus_Nitrosopumilus</em>) and bacteria (<em>Nitrosomonas</em>), but promoted the heterotrophic nitrification-aerobic denitrification bacteria (<em>Halomonas</em>). 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.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 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

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":"<div><div>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/m<sup>3</sup>/d, which was 304 g N/m<sup>3</sup>/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 SO<sub>4</sub><sup>2-</sup> 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. <em>Alicycliphilus</em> and <em>Simplicispira</em> related to organic compounds degradation were enriched after the addition of polycaprolactone. This research provided new insights into mixotrophic denitrification systems.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 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

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

{"title":"Model-based study of Yarrowia lipolytica cultivation on crude glycerol under different fermentation modes: Development of a membrane bioreactor process","authors":"Asimina Tsirigka , Amalia Aggeli , Eleni Theodosiou , Antonios M. Makris , Anastasios J. Karabelas , Sotiris I. Patsios","doi":"10.1016/j.biortech.2024.131773","DOIUrl":"10.1016/j.biortech.2024.131773","url":null,"abstract":"<div><div>Batch fermentations of the wild type <em>Yarrowia lipolytica</em> MUCL 28849 were performed in a bench-top bioreactor to assess crucial operating conditions. A setup of carbon to nitrogen (mol/mol) ratio equal to 34, pH = 6.0 and 52 g/L of crude glycerol showed increased lipid production and complete glycerol consumption at t = 24 h, thus, selected for further process improvement. Α semi-continuous process was implemented, where a pH drop to 4.0 at 24 h, interrupted citric acid secretion without affecting lipid production. An <em>in-situ</em> membrane module was employed for membrane bioreactor fermentations, where yeast cells were successfully retained with minimum fouling. The membrane bioreactor fed-batch process, resulted in a high-cell-density culture reaching 49.8 g/L of dry biomass and 4.9 g/L of lipids. An unstructured model was developed and successfully simulated operation under all fermentation modes, distinguishing diverse physiological shifts.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 131773"},"PeriodicalIF":9.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643596","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

Illuminating bioprocess responses to metal-based nanoparticles addition along hydrogen and methane production pathways: A review 阐明氢气和甲烷生产途径中添加金属基纳米粒子后的生物过程反应：综述。

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.2024.131824

Ahmed Elreedy , Mohamed Elsamadony , Alsayed Mostafa , Johannes Gescher , Omar Y. Abdelaziz , Manabu Fujii

{"title":"Illuminating bioprocess responses to metal-based nanoparticles addition along hydrogen and methane production pathways: A review","authors":"Ahmed Elreedy , Mohamed Elsamadony , Alsayed Mostafa , Johannes Gescher , Omar Y. Abdelaziz , Manabu Fujii","doi":"10.1016/j.biortech.2024.131824","DOIUrl":"10.1016/j.biortech.2024.131824","url":null,"abstract":"<div><div>Recent research has discussed the positive impacts of metal-based nanoparticles (NPs) on bioprocesses producing either hydrogen (H<sub>2</sub>) or methane (CH<sub>4</sub>). The enhancement has been explained by mechanisms such as direct interspecies electron transfer (DIET), metal corrosion, and dissimilatory reduction. Such interactions could induce further benefits, such as controlling oxidation–reduction potential (ORP), mitigating toxicants, promoting enzymatic activity, and altering the microbiome, which have not yet been comprehensively discussed. Factors like metal type, oxidation state, and size of NPs are crucial for their reactivity and corresponding responses. This review discusses how different redox potentials of metals can regulate metabolic pathways and how NPs and their reactive ions can eliminate toxicants (e.g., sulfate) and enhance the activity of intra- and extracellular enzymes. The enrichment of responsive microorganisms in correlation with NPs is further discussed. A better understanding of the multifaceted role of metal-based NPs can guide potential new incorporation strategies to improve bioprocesses.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 131824"},"PeriodicalIF":9.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643594","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

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

{"title":"Metabolic Versatility of acetogens in syngas Fermentation: Responding to varying CO availability","authors":"João P.C. Moreira , Lucília Domingues , Joana I. Alves","doi":"10.1016/j.biortech.2024.131823","DOIUrl":"10.1016/j.biortech.2024.131823","url":null,"abstract":"<div><div>Syngas fermentation using acetogenic bacteria offers a promising route for sustainable chemical production. However, gas–liquid mass transfer limitations and efficient co-utilization of CO and H<sub>2</sub> pose significant challenges. This study investigated the kinetics of syngas conversion to acetate by <em>Acetobacterium wieringae</em> and <em>Clostridium</em> species in batch conditions under varying initial CO partial pressures (19 – 110 kPa). <em>A. wieringae</em> strains, exhibited superior growth in all gas compositions, with a maximum growth rate of 0.104 h<sup>−1</sup>. The distinct CO, H<sub>2</sub>, and CO<sub>2</sub> consumption patterns revealed metabolic flexibility and adaptation to varying syngas compositions. Notably, <em>A. wieringae</em> strains and <em>C. autoethanogenum</em> achieved complete CO and H<sub>2</sub> conversion, with <em>C. autoethanogenum</em> also exhibiting net CO<sub>2</sub> uptake. These findings provide valuable insights into the distinct metabolic capabilities of these acetogens and contribute to the development of efficient and sustainable syngas fermentation processes.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 131823"},"PeriodicalIF":9.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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 (CH<sub>4</sub>) production from organic substrates in anaerobic digestion (AD) has been discovered. That is, the addition of elemental sulfur (S<sup>0</sup>) 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 CH<sub>4</sub> production in the AD system increased considerably with S<sup>0</sup> 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 CH<sub>4</sub> production increased by 2.1 times and 2.5 times, respectively compared with the control group. However, inhibitory effect was observed for S<sup>0</sup> 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 S<sup>0</sup> addition increased the relative abundance of <em>Dethiobacteraceae</em>, <em>Caldatribacterium</em>, <em>Anaerolineaceae</em>, <em>Methanobacterium</em> and <em>Methanosaeta</em> 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 CH<sub>4</sub>, demonstrating that S<sup>0</sup> 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":"<div><div>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.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 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

Policy impact on economic and environmental sustainability of anaerobic digestion: Industrial case study Insights 政策对厌氧消化的经济和环境可持续性的影响：工业案例研究的启示。

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.2024.131815

Tony C Li , Yingqian Lin , Ling Ding , Steve Smith , April Z. Gu

{"title":"Policy impact on economic and environmental sustainability of anaerobic digestion: Industrial case study Insights","authors":"Tony C Li , Yingqian Lin , Ling Ding , Steve Smith , April Z. Gu","doi":"10.1016/j.biortech.2024.131815","DOIUrl":"10.1016/j.biortech.2024.131815","url":null,"abstract":"<div><div>This paper thoroughly examines how policy incentives impact the economic and environmental sustainability of anaerobic digestion (AD) systems. It uses techno-economic and life cycle analyses, along with real industry data, to explore the entire AD process—from feedstock acceptance to digestate disposal. It evaluates the effects of various U.S. policy crediting programs on the economic viability of different AD pathways for treating sewage sludge and food waste. Tipping fees are identified as the primary driver of profitability, while policy credits play a crucial role in enhancing economic feasibility, particularly for renewable natural gas production. However, future regulatory changes could reshape this economic landscape. All AD pathways are found to significantly reduce greenhouse gas emissions, though economic outcomes are highly sensitive to digestate disposal costs and feedstock tipping fees. Co-digestion with food waste is proposed as a strategy to reduce dependence on policy credits and improve long-term economic stability.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"417 ","pages":"Article 131815"},"PeriodicalIF":9.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637993","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