Residual sludge catalyzed by hydrolysis of thermophilic bacteria

In order to improve the utilization rate of the surplus sludge, this experiment investigated the efficient hydrolysis of the residual sludge, explored the effect of sludge nitrogen source, analyzed the influence on the content of protein, amino acid, polypeptide and particle size of the sludge hydro...

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Main Authors: Wang Changwei, Ning Zhifang, Zhong Weizhang, Li Yanfei, Hou Jiwei, Wang Zhaoyang, Zhang Haoran, Dong Xilei
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/103/e3sconf_icaeer2023_01014.pdf
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author Wang Changwei
Ning Zhifang
Zhong Weizhang
Li Yanfei
Hou Jiwei
Wang Zhaoyang
Zhang Haoran
Dong Xilei
author_facet Wang Changwei
Ning Zhifang
Zhong Weizhang
Li Yanfei
Hou Jiwei
Wang Zhaoyang
Zhang Haoran
Dong Xilei
author_sort Wang Changwei
collection DOAJ
description In order to improve the utilization rate of the surplus sludge, this experiment investigated the efficient hydrolysis of the residual sludge, explored the effect of sludge nitrogen source, analyzed the influence on the content of protein, amino acid, polypeptide and particle size of the sludge hydrolysis index, and the extraction conditions were optimized by response surface analysis. The maximum protein extraction rate of the residual sludge at the reaction pH of 60°C and =7. Here, the particle size of S sludge was gradually reduced, reduced by 1.1% by 500 m-100 um, 7.5% by 30-50 μ m, 5.4% by 10 μ m-30 μ m, and 0-10 μ As m decreases 13% and sludge increased 13% Nt particles become thinner, larger than surface area and more developed pore structure.
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spelling doaj.art-e03f41043b574988a95811aafdf18e0b2024-01-26T10:43:49ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014660101410.1051/e3sconf/202346601014e3sconf_icaeer2023_01014Residual sludge catalyzed by hydrolysis of thermophilic bacteriaWang Changwei0Ning Zhifang1Zhong Weizhang2Li Yanfei3Hou Jiwei4Wang Zhaoyang5Zhang Haoran6Dong Xilei7School of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologySchool of Environmental Science and Engineering, Hebei University of Science and TechnologyIn order to improve the utilization rate of the surplus sludge, this experiment investigated the efficient hydrolysis of the residual sludge, explored the effect of sludge nitrogen source, analyzed the influence on the content of protein, amino acid, polypeptide and particle size of the sludge hydrolysis index, and the extraction conditions were optimized by response surface analysis. The maximum protein extraction rate of the residual sludge at the reaction pH of 60°C and =7. Here, the particle size of S sludge was gradually reduced, reduced by 1.1% by 500 m-100 um, 7.5% by 30-50 μ m, 5.4% by 10 μ m-30 μ m, and 0-10 μ As m decreases 13% and sludge increased 13% Nt particles become thinner, larger than surface area and more developed pore structure.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/103/e3sconf_icaeer2023_01014.pdf
spellingShingle Wang Changwei
Ning Zhifang
Zhong Weizhang
Li Yanfei
Hou Jiwei
Wang Zhaoyang
Zhang Haoran
Dong Xilei
Residual sludge catalyzed by hydrolysis of thermophilic bacteria
E3S Web of Conferences
title Residual sludge catalyzed by hydrolysis of thermophilic bacteria
title_full Residual sludge catalyzed by hydrolysis of thermophilic bacteria
title_fullStr Residual sludge catalyzed by hydrolysis of thermophilic bacteria
title_full_unstemmed Residual sludge catalyzed by hydrolysis of thermophilic bacteria
title_short Residual sludge catalyzed by hydrolysis of thermophilic bacteria
title_sort residual sludge catalyzed by hydrolysis of thermophilic bacteria
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/103/e3sconf_icaeer2023_01014.pdf
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AT liyanfei residualsludgecatalyzedbyhydrolysisofthermophilicbacteria
AT houjiwei residualsludgecatalyzedbyhydrolysisofthermophilicbacteria
AT wangzhaoyang residualsludgecatalyzedbyhydrolysisofthermophilicbacteria
AT zhanghaoran residualsludgecatalyzedbyhydrolysisofthermophilicbacteria
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