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Decomposition of lignocellulose and readily degradable carbohydrates during sewage sludge biodrying, insights of the potential role of microorganisms from a metagenomic analysis
Cai, Lu1; Chen, Tong-Bin2; Zheng, Sheng-Wei1; Liu, Hong-Tao2,3; Zheng, Guo-Di2,3
2018-06-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume201Pages:127-136
Corresponding AuthorCai, Lu(cailu@nbu.edu.cn)
AbstractSewage sludge biodrying is a waste treatment method that uses bio-heat generated from organic degradation to remove moisture from sewage sludge. Lignocellulose and carbohydrate decomposition is important when assessing biodrying performance. This study investigated lignocellulose and carbohydrate decomposition, and the potential microbial functions during biodrying. We determined the lignocellulose and carbohydrate contents, assayed related enzyme activity, performed a complete metagenomic study on sewage sludge biodrying material during the thermophilic phase, annotated potential genetic function involved in the decomposition, and summarized the key metabolic pathways. The results indicated that lignocellulose, readily degradable carbohydrates, and starch, significantly decomposed after biodrying. During the thermophilic phase, the majority of lignocellulose and carbohydrate related enzymes showed significantly higher activity, and glycoside hydrolases and glycosyl transferases showed higher gene counts and reads. Moreover, the top five microorganisms enriched with carbohydrate-active enzyme genes, i.e., Bacillus, Intrasporangium, Tetrasphaera, Rhodobacter, and Streptomyces, were also among the top ten ecologically dominant genera. These findings highlight the crucial phases for biodrying process, reveal the ecologically functional diversity of biodrying-originated microbial consortia, and suggest potential candidates for optimizing biodrying decomposition. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordEnzyme activity Genetic function Lignocellulose decomposition Microbial consortia Sewage sludge biodrying
DOI10.1016/j.chemosphere.2018.02.177
WOS KeywordBIOLOGICAL PHOSPHORUS REMOVAL ; MICROBIAL COMMUNITY ; ANAEROBIC-DIGESTION ; PROTEIN-SEQUENCE ; WASTE ; TETRASPHAERA ; TRANSPORTERS ; TEMPERATURE ; TECHNOLOGY ; METABOLISM
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41401538] ; Ningbo Natural Science Foundation of China[2017A610303] ; K. C. Wong Magna Fund at Ningbo University
Funding OrganizationNational Natural Science Foundation of China ; Ningbo Natural Science Foundation of China ; K. C. Wong Magna Fund at Ningbo University
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000430895300015
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/55042
Collection中国科学院地理科学与资源研究所
Corresponding AuthorCai, Lu
Affiliation1.Ningbo Univ, Fac Architectural Civil Engn & Environm, 818 Fenghua Rd, Ningbo 315211, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, 11A Datun Rd, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cai, Lu,Chen, Tong-Bin,Zheng, Sheng-Wei,et al. Decomposition of lignocellulose and readily degradable carbohydrates during sewage sludge biodrying, insights of the potential role of microorganisms from a metagenomic analysis[J]. CHEMOSPHERE,2018,201:127-136.
APA Cai, Lu,Chen, Tong-Bin,Zheng, Sheng-Wei,Liu, Hong-Tao,&Zheng, Guo-Di.(2018).Decomposition of lignocellulose and readily degradable carbohydrates during sewage sludge biodrying, insights of the potential role of microorganisms from a metagenomic analysis.CHEMOSPHERE,201,127-136.
MLA Cai, Lu,et al."Decomposition of lignocellulose and readily degradable carbohydrates during sewage sludge biodrying, insights of the potential role of microorganisms from a metagenomic analysis".CHEMOSPHERE 201(2018):127-136.
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