市政剩余污泥CaO处理及生物干化过程的细菌群落变化

doi:10.3976/j.issn.1002-4026.2020.06.010

Shandong Science ›› 2020, Vol. 33 ›› Issue (6): 72-78.doi: 10.3976/j.issn.1002-4026.2020.06.010

• Biomass Energy • Previous Articles Next Articles

Variationsin bacterial communities in the biodrying process of municipal excess sludge with CaO treatment

LIANG Xiao-hui ¹,SI Hong-yu¹,ZHAO Yu-xiao ¹,HUA Dong-liang^1*，TANG Chun-hong ²,LI Rui-guo³

1. Shandong Provincial Key Laboratory of Biomass Gasification Technology, Energy Institute, Qilu University of Technology
(Shandong Academy of Sciences)，Jinan 250014, China;2.College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China; 3.Qingdao Clear Group Co., Ltd., Qingdao 266071, China

Received:2020-04-08 Published:2020-12-09 Online:2020-12-10

Abstract

Abstract: In this study, temperature, pH, and moisture content of the municipal excess sludge treated with CaO during the biodrying process were analyzed, and the obtained data were compared with excess sludge treated without CaO. It was observed that the sludge waste exhibited good buffering capacity of pH, and could improve the biodrying temperature to a certain degree after treated with CaO. Moreover, the variations in bacterial communities during the biodrying process of municipal excess sludge biodrying were analyzed based on two different conditions (with and without CaO treatment). It was found that the two different treatment methods and biodrying period had a significant effect on the bacterial communities in the sludge substrate. The study facilitates the preliminary foundation to further clarify the succession rules of microbial communities during municipal excess sludge biodrying using aerobic fermentation.

Key words: municipal excess sludge, biodrying; CaO;bacterial communities

CLC Number:

X703.1

LIANG Xiao-hui , SI Hong-yu, ZHAO Yu-xiao, HUA Dong-liang, TANG Chun-hong , LI Rui-guo. Variationsin bacterial communities in the biodrying process of municipal excess sludge with CaO treatment[J].Shandong Science, 2020, 33(6): 72-78.

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Variationsin bacterial communities in the biodrying process of municipal excess sludge with CaO treatment

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