Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China

Taking sludge in northwest China’s expressway service area as the research object, four dominant strains, including Bordetella sp. M05, Ochrobactrum sp. M06, Bacillus subtilis M07 and Staphylococcus sciuri M09, were obtained through specific screening. These microbes were prepared into inoculants an...

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Main Authors: Zhao Jing, Wang Xiao wei, Fan Hua, Fan Chun ping, Shao She gang, Xie Jian bo
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_01037.pdf
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author Zhao Jing
Wang Xiao wei
Fan Hua
Fan Chun ping
Shao She gang
Xie Jian bo
author_facet Zhao Jing
Wang Xiao wei
Fan Hua
Fan Chun ping
Shao She gang
Xie Jian bo
author_sort Zhao Jing
collection DOAJ
description Taking sludge in northwest China’s expressway service area as the research object, four dominant strains, including Bordetella sp. M05, Ochrobactrum sp. M06, Bacillus subtilis M07 and Staphylococcus sciuri M09, were obtained through specific screening. These microbes were prepared into inoculants and effectively promoted sludge composting. The time for the fermentation temperature of the composting process to reach 50°C was 3 days earlier than that of the control group. The high temperature (>50°C) lasted for 12 days and the highest temperature reached 63.5°C. After composting, the product was dark in color, free from odor, and the contents of organic matter, nitrogen, phosphorus and potassium increased by 44.1%, 125.9%, 311.1% and 269.2%, respectively, which made the composted product meet standards of GB/T 23486–2009 Sludge for Landscaping.
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spelling doaj.art-f6c5296025b44ae9ba657c0d28bec0c52022-12-21T20:17:53ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012480103710.1051/e3sconf/202124801037e3sconf_caes2021_01037Screening and application of microbial inoculants for sludge composting in expressway service area of northwest ChinaZhao Jing0Wang Xiao weiFan HuaFan Chun pingShao She gang1Xie Jian bo2Key Laboratory of Traffic Industry of Highway Traffic Environmental Protection TechnologyKey Laboratory of Traffic Industry of Highway Traffic Environmental Protection TechnologyShuangzhi Environment and Development Technology Co., Ltd.Taking sludge in northwest China’s expressway service area as the research object, four dominant strains, including Bordetella sp. M05, Ochrobactrum sp. M06, Bacillus subtilis M07 and Staphylococcus sciuri M09, were obtained through specific screening. These microbes were prepared into inoculants and effectively promoted sludge composting. The time for the fermentation temperature of the composting process to reach 50°C was 3 days earlier than that of the control group. The high temperature (>50°C) lasted for 12 days and the highest temperature reached 63.5°C. After composting, the product was dark in color, free from odor, and the contents of organic matter, nitrogen, phosphorus and potassium increased by 44.1%, 125.9%, 311.1% and 269.2%, respectively, which made the composted product meet standards of GB/T 23486–2009 Sludge for Landscaping.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_01037.pdf
spellingShingle Zhao Jing
Wang Xiao wei
Fan Hua
Fan Chun ping
Shao She gang
Xie Jian bo
Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
E3S Web of Conferences
title Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
title_full Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
title_fullStr Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
title_full_unstemmed Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
title_short Screening and application of microbial inoculants for sludge composting in expressway service area of northwest China
title_sort screening and application of microbial inoculants for sludge composting in expressway service area of northwest china
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/24/e3sconf_caes2021_01037.pdf
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