Bioresource Technology最新文献_第8页

Mechanistic insights into melanoidins-induced hydrophilicity of thermal hydrolyzed sludge and its impact on dewaterability 热水解污泥中美兰素诱导的亲水性及其对脱水性影响的机理研究。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-07 DOI: 10.1016/j.biortech.2024.131766

Qian Zhang, Junyue Xu, Jiamian Wang, Liwei Wang, Nan Wang, Xinran Liu, Jiuxiao Hao

{"title":"Mechanistic insights into melanoidins-induced hydrophilicity of thermal hydrolyzed sludge and its impact on dewaterability","authors":"Qian Zhang, Junyue Xu, Jiamian Wang, Liwei Wang, Nan Wang, Xinran Liu, Jiuxiao Hao","doi":"10.1016/j.biortech.2024.131766","DOIUrl":"10.1016/j.biortech.2024.131766","url":null,"abstract":"<div><div>Although thermal hydrolysis pretreatment enhances disposal efficiency of sludge, it inevitably leads to melanoidins formation, which will negatively impact the subsequent wastewater treatment processes. However, their effect on the dewaterability of thermal hydrolyzed sludge (THS) remains poorly understood. This study aimed to uncover the underlying mechanisms of how melanoidins affecting dewaterability of THS. Using resin-adsorption method to reduce melanoidins content by 50% led to 21% and 6% decreases in capillary suction time and specific resistance to filtration, respectively, and a 14% increase in sludge cake solid content. Conversely, accumulating melanoidins to 200% worsened THS dewaterability, altering surface morphology and reducing floc stability, which increased the content of bound water by 9%. Additionally, a higher melanoidins level increased the hydrophilic components in extracellular polymeric substances while reducing hydrophobic sites and structures. These findings indicate that melanoidins impair THS dewaterability by altering flocs spatial properties and increasing hydrophilic structures and components.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131766"},"PeriodicalIF":9.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602278","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

Mechanism of promoting okara insoluble to soluble dietary fiber by high-pressure homogenization-microbial fermentation 通过高压均质-微生物发酵将秋葵不溶性膳食纤维转化为可溶性膳食纤维的机理。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-07 DOI: 10.1016/j.biortech.2024.131774

Derong Lin , Hongjin Ning , Ya Liu , Wen Qin , Jianhua Liu , Douglas A. Loy

{"title":"Mechanism of promoting okara insoluble to soluble dietary fiber by high-pressure homogenization-microbial fermentation","authors":"Derong Lin , Hongjin Ning , Ya Liu , Wen Qin , Jianhua Liu , Douglas A. Loy","doi":"10.1016/j.biortech.2024.131774","DOIUrl":"10.1016/j.biortech.2024.131774","url":null,"abstract":"<div><div>This study investigated the conversion of okara insoluble dietary fiber (IDF) to soluble dietary fiber (SDF) using high-pressure homogenization (HPH) combined with microbial fermentation. The conversion mechanism was analyzed from four aspects: correlation, proteomics, component and structure under. Results indicated a negative correlation between pH and SDF yield (r = -0.9885, <em>p</em> < 0.05), while cellulase and xylanase showed a positive correlation with SDF yield (<em>p</em> < 0.05). Proteomic analysis identified 22 key enzymes involved in IDF degradation. According to the composition and structure, the combined treatment effectively reduced the aggregation of IDF, promoting its transformation into SDF. HPH treatment primarily acted on the hemicellulose fractions in the amorphous region, while microbial fermentation broke hydrogen bonds between hydroxyl groups in the crystalline regions of cellulose, enhancing the conversion of more exposed cellulose. This study provided theoretical support for the development and utilization of okara IDF.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131774"},"PeriodicalIF":9.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610777","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

Graph-learning-based machine learning improves prediction and cultivation of commercial-grade marine microalgae Porphyridium 基于图学习的机器学习改进了商业级海洋微藻 Porphyridium 的预测和培育。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-07 DOI: 10.1016/j.biortech.2024.131728

Huankai Li, Leijian Chen, Feng Zhang, Zongwei Cai

{"title":"Graph-learning-based machine learning improves prediction and cultivation of commercial-grade marine microalgae Porphyridium","authors":"Huankai Li, Leijian Chen, Feng Zhang, Zongwei Cai","doi":"10.1016/j.biortech.2024.131728","DOIUrl":"10.1016/j.biortech.2024.131728","url":null,"abstract":"<div><div>A graph learning [Binarized Attributed Network Embedding (BANE)] model enhances the single-target and multi-target prediction performances of random forest and eXtreme Gradient Boosting (XGBoost) by learning complex interrelationships between cultivation parameters of <em>Porphyridium</em>. The BANE-XGBoost has the best prediction performance (train R<sup>2</sup> > 0.96 and test R<sup>2</sup> > 0.87). Based on Shapley Additive Explanation (SHAP) model, illumination intensity, culture time, and KH<sub>2</sub>PO<sub>4</sub> are the most critical factors for <em>Porphyridium</em> growth. The combined facilitating roles of cultivation parameters are found using the SHAP value-based heat map and group. To reach high biomass and daily production rate concurrently, one-way and two-way partial dependent plots models find the optimal conditions. The top 2 critical parameters (illumination intensity and KH<sub>2</sub>PO<sub>4</sub>) were selected to verify using the graphical user interface website based on the optimized model and lab experiments, respectively. This study shows thegraph-learning-based model can improve prediction performance and optimize intricate low-carbon microalgal cultivation.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131728"},"PeriodicalIF":9.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610772","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 lead-tolerant mutant Bacillus tropicus AT31-1 from rhizosphere soil of Pu-erh and its remediation mechanism 普洱根瘤土壤中的高耐铅突变体枯草芽孢杆菌 AT31-1 及其修复机制。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-07 DOI: 10.1016/j.biortech.2024.131751

Qiang Li , Wenxia Yuan , Xiujuan Deng , Yaping Chen , Limei Li , Lijiao Chen , Raoqiong Che , Wei Huang , Yamin Wu , Chun Wang , Zejun Wang , Miao Zhou , Zongpei Fan , Baijuan Wang

{"title":"High lead-tolerant mutant Bacillus tropicus AT31-1 from rhizosphere soil of Pu-erh and its remediation mechanism","authors":"Qiang Li , Wenxia Yuan , Xiujuan Deng , Yaping Chen , Limei Li , Lijiao Chen , Raoqiong Che , Wei Huang , Yamin Wu , Chun Wang , Zejun Wang , Miao Zhou , Zongpei Fan , Baijuan Wang","doi":"10.1016/j.biortech.2024.131751","DOIUrl":"10.1016/j.biortech.2024.131751","url":null,"abstract":"<div><div>In this study, we successfully generated the mutant strain <em>Bacillus tropicus</em> AT31-1 from AT31 through atmospheric room-temperature plasma mutagenesis. This mutant strain AT31-1 demonstrated an impressive 48.6 % removal efficiency in 400 mg/L lead medium. Comparative genomic analysis showed that the mutant strain AT31-1 had three mutation sites, which affect the efflux RND transporter permease subunit, the response regulator transcription factor, and a gene with unknown function. The transcriptional analysis showed a notable upregulation in the expression of 283 genes in AT31-1 as lead concentrations increased from 0 to 200 mg/L and then to 400 mg/L, which include zinc-transporting ATPase, ferrous iron transport protein B, NADH dehydrogenase, and others. The Gene ontology function of the peptide metabolic process, along with the KEGG pathway of carbon metabolism were identified as closely linked to the extreme lead tolerance of AT31-1. This study presents novel insights into the lead tolerance mechanisms of bacteria.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131751"},"PeriodicalIF":9.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610774","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

Photochemical behavior of extracellular polymeric substances in intimately coupled TiO2 photocatalysis and biodegradation system 细胞外聚合物物质在二氧化钛光催化和生物降解密切耦合系统中的光化学行为。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131752

Xiangwei Ding , Qingmiao Yu , Hongpu Xue , Wei Zhang , Hongqiang Ren , Jinju Geng

{"title":"Photochemical behavior of extracellular polymeric substances in intimately coupled TiO2 photocatalysis and biodegradation system","authors":"Xiangwei Ding , Qingmiao Yu , Hongpu Xue , Wei Zhang , Hongqiang Ren , Jinju Geng","doi":"10.1016/j.biortech.2024.131752","DOIUrl":"10.1016/j.biortech.2024.131752","url":null,"abstract":"<div><div>Photosensitization of extracellular polymeric substances (EPS) in aqueous environments is significant for pollutants degradation, but the synergistic effects in intimately coupled photocatalysis and biodegradation (ICPB) remain unknown. In this study, the pivotal role of EPS photosensitization in the degradation of 17β-estradiol 3-sulfate (E2-3S) was investigated in ICPB. Protein and polysaccharide contents in loosely bound EPS (LB-EPS) and tightly bound EPS (TB-EPS) increased by 16.6, 9.15 and 9.2, 2.2 times compared with R1 (biofilm with light without photocatalyst) and R2 (biofilm with photocatalyst without light), respectively. During irradiation tests, more reactive species were generated in LB-EPS, and achieving 99.8 % degradation efficiency of E2-3S; tryptophan-like protein in EPS firstly to be converted, while the tyrosine-like protein underwent greater conversion; furthermore, hydrophilic molecules with O/C < 0.45 in EPS decreased and unsaturated molecules with H/C = 0.7–1.5 and O/C = 0–0.1 increased. This study reveals the photosensitization reaction of EPS in ICPB, which provides new insights for pollutants degradation.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131752"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602343","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

Simple enzymatic depolymerization process based on rapid ball milling pretreatment for high-crystalline polyethylene terephthalate fibers 基于快速球磨预处理的高结晶聚对苯二甲酸乙二醇酯纤维的简单酶解聚工艺。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131759

Yu Zhou , Jinxu Zhang , Yunxin Zheng , Wei Lin , Shengping You , Mengfan Wang , Rongxin Su , Wei Qi

{"title":"Simple enzymatic depolymerization process based on rapid ball milling pretreatment for high-crystalline polyethylene terephthalate fibers","authors":"Yu Zhou , Jinxu Zhang , Yunxin Zheng , Wei Lin , Shengping You , Mengfan Wang , Rongxin Su , Wei Qi","doi":"10.1016/j.biortech.2024.131759","DOIUrl":"10.1016/j.biortech.2024.131759","url":null,"abstract":"<div><div>The high crystallinity (30 %–50 %) of discarded polyester textile waste limits the industrialization of its clean enzymatic depolymerization. In this study, a simple process based on ball milling pretreatment was developed to achieve effective enzymatic hydrolysis of high-crystalline polyester fiber. Ball milling was selected for its short, mild, and chemical-free process, which achieved a remarkable 23.8-fold (60.9 %) increase in terephthalic acid (TPA) yield from waste polyethylene terephthalate (PET) degradation, along with high TPA purity in the released soluble compounds. Just 30 min of ball milling at room temperature induced polyester amorphization, resulting in polyester with 12 % lower crystallinity compared with untreated polyester (51 %), while simultaneously increasing the surface roughness of polyester, thereby enhancing the efficiency of enzymatic hydrolysis. The simple process for effective enzymatic-depolymerization of waste polyester fiber developed in this study has potential industrial applications.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131759"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602353","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 lead tolerance in spirulina using glycine betaine under high CO2 and salinity for sustainable carbon capture 在高二氧化碳和高盐度条件下利用甘氨酸甜菜碱增强螺旋藻对铅的耐受性，以实现可持续碳捕获。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131757

Chunli Yu , Rui Xu , Shengxi Shao , Wenguang Zhou

{"title":"Enhancing lead tolerance in spirulina using glycine betaine under high CO2 and salinity for sustainable carbon capture","authors":"Chunli Yu , Rui Xu , Shengxi Shao , Wenguang Zhou","doi":"10.1016/j.biortech.2024.131757","DOIUrl":"10.1016/j.biortech.2024.131757","url":null,"abstract":"<div><div>Microalgae-based carbon capture and utilization (CCU) offers a promising negative emission technology that absorbs CO<sub>2</sub> and generates valuable biomass. However, heavy metal pollutants in industrial flue gases can compromise carbon sequestration efficiency and bioproduct quality. Spirulina was investigated as a model organism for CO<sub>2</sub> sequestration, using a modified Zarrouk’s medium to integrate salt stress and an osmoprotectant to boost biomass yield under 15 % CO<sub>2</sub>. This approach enhances both biomass yield （380.83 mg L<sup>–1</sup> d<sup>–1</sup>）and resistance to lead toxicity. Analytical assessments revealed that glycine betaine (GB) supplementation drastically reduced lead accumulation, decreasing the extracellular and intracellular contents by 39.7 % and 60.7 %, respectively. A notable decrease in extracellular dissolved organic matter was also observed. Furthermore, transcriptomic analyses confirmed that GB treatment strengthened osmotic stress responses and suppressed metal ion transport. These findings enhanced the feasibility of microalgae-based CCU technologies, marking significant progress in sustainable algal biotechnology.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131757"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610770","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

One-pot sequential aldol condensation and hydrodeoxygenation of furfural and acetone to 1-octanol over multifunctional acid-based catalytic system 在多功能酸基催化体系上，将糠醛和丙酮进行单锅顺序醛醇缩合和加氢脱氧生成 1-辛醇。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131764

Reibelle Q. Raguindin , Mahlet N. Gebresillase , Jimin Kang , Young-Woong Suh , Jeong Gil Seo

{"title":"One-pot sequential aldol condensation and hydrodeoxygenation of furfural and acetone to 1-octanol over multifunctional acid-based catalytic system","authors":"Reibelle Q. Raguindin , Mahlet N. Gebresillase , Jimin Kang , Young-Woong Suh , Jeong Gil Seo","doi":"10.1016/j.biortech.2024.131764","DOIUrl":"10.1016/j.biortech.2024.131764","url":null,"abstract":"<div><div>Furfural and acetone are two of the most promising chemicals derived from lignocellulosic biomass. Coupling these two compounds expands the broad range of value-added chemicals that can be derived from biomass. In this study, 1-octanol, a promising medium chain-length alcohol, was produced from furfural and acetone through a series of reactions: aldol condensation (R1), hydrogenation (R2), and hydrogenolysis (R3). Each step was individually investigated to understand its mechanism and requirements, enabling seamless integration into one-pot, two-step (R1, R2 + R3) and one-pot, three-step (R1 + R2 + R3) processes. To facilitate these reactions, bifunctional alumina–zirconia-based catalysts were synthesized. Additionally, to enhance the yield of 1-octanol, solid acidic additives, particularly sulfonic acid-functionalized silica (KCC-1-APSO<sub>3</sub>H), were incorporated into the reaction. The highest yield of 1-octanol (69.1 %) was achieved with the three-step process (R1, R2, R3), followed by the one-pot, two-step process (R1, R2 + R3, 64.8 %), and the one-pot, three-step process (R1 + R2 + R3, 48.7 %) using the combined Ni/Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub> and KCC-1-APSO<sub>3</sub>H catalyst. Among all the processes investigated, the one-pot, two-step process emerged as the best approach balancing the efficiency of the process integration and 1-octanol yield. The present study offers valuable insights into the development of catalytic methods for producing linear alcohols from biomass.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131764"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610780","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

Exploring interactive effects of environmental and microbial factors on food waste anaerobic digestion performance: Interpretable machine learning models 探索环境和微生物因素对厨余厌氧发醇性能的交互影响：可解释的机器学习模型。

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131762

Yanyan Guo , Youcai Zhao , Zongsheng Li , Zhengyu Wang , Wenxiao Zhang , Kunsen Lin , Tao Zhou

{"title":"Exploring interactive effects of environmental and microbial factors on food waste anaerobic digestion performance: Interpretable machine learning models","authors":"Yanyan Guo , Youcai Zhao , Zongsheng Li , Zhengyu Wang , Wenxiao Zhang , Kunsen Lin , Tao Zhou","doi":"10.1016/j.biortech.2024.131762","DOIUrl":"10.1016/j.biortech.2024.131762","url":null,"abstract":"<div><div>Biogas yield in anaerobic digestion (AD) involves continuous and complex biological reactions. The traditional linear models failed to quantitatively assess the interactive effects of these factors on AD performance. To further explore the internal relationship between target variables and AD performance, this study developed four machine learning models to predict biogas yield and consider the interaction among various factors. Results indicated that the highest prediction accuracy of AD performance was achieved by adding bacterial genera dataset with environmental factors. Random forest model exhibited the highest accuracy, with the testing coefficient of determination equal to 0.9879. Among two types of input features, the bacterial genera accounted for 89.9 % of the impact on biogas yield, followed by environmental factors. The results revealed <em>Keratinibaculum</em> and <em>Acetomicrobium</em> as critical bacteria. The volatile fatty acid controlled below 2000 mg/L and the improved stirring system in AD process were recommended to achieve maximum biogas yield.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131762"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610771","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

Investigating role of corn stover biochar supplementation on continuous pilot scale anaerobic digestion: Performance and microbial community dynamics 研究玉米秸秆生物炭补充对连续中试规模厌氧消化的作用：性能和微生物群落动态

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2024-11-06 DOI: 10.1016/j.biortech.2024.131767

Sachin Krushna Bhujbal , Preeti , Akshay Joshi , Pooja Ghosh , Virendra Kumar Vijay

{"title":"Investigating role of corn stover biochar supplementation on continuous pilot scale anaerobic digestion: Performance and microbial community dynamics","authors":"Sachin Krushna Bhujbal , Preeti , Akshay Joshi , Pooja Ghosh , Virendra Kumar Vijay","doi":"10.1016/j.biortech.2024.131767","DOIUrl":"10.1016/j.biortech.2024.131767","url":null,"abstract":"<div><div>Biochar supplementation could facilitate microbial colonization and increase biogas and methane yield in anaerobic digestion (AD). This study investigated the impact of corn stover biochar (CSB) augmentation on the continuous pilot scale AD of rice straw. The CSB supplementation exhibited the daily average specific biogas and methane yield of 368.6 L/kg volatile solids (VS) and 230 L/kg VS, which were 35% and 37% higher than the control. Principle component analysis indicated that the VS reduction positively correlated with the daily average specific biogas and methane yield. Metagenomic analysis revealed that the CSB supplementation facilitated microbial colonization with the enrichment of unclassified genera from families Planococcaceae, Clostridiaceae, and Ruminococcaceae, and genus <em>Clostridium</em> and methanogenic archaea (<em>Methanosarcina and Methanobacterium</em>). The co-occurrence network revealed a notable shift in microbial interactions following the supplementation of CSB as an additive in AD. These results offer insights for enhancing the performance of the AD using CSB.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131767"},"PeriodicalIF":9.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610776","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