Fast atrazine degradation by the mixed cultures enriched from activated sludge and analysis of their microbial community succession

被引：17

作者：

Zhou, Qingxin ^{[1
]}

Chen, Leilei ^{[1
]}

Wang, Zhibin ^{[2
,3
]}

Wang, Junhua ^{[1
]}

Ni, Shouqing ^{[2
]}

Qiu, Jiying ^{[1
]}

Liu, Xiaoyong ^{[1
]}

Zhang, Xiang ^{[1
]}

Chen, Xiangyan ^{[1
]}

机构：

[1] Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Shandong Prov Key Lab Deep Proc Technol Agr Prod, 202 Gongye North Rd, Jinan 250100, Shandong, Peoples R China

[2] Shandong Univ, Sch Environm Sci & Engn, Shandong Prov Key Lab Water Pollut Control & Reso, Jinan 250100, Shandong, Peoples R China

[3] Shandong Normal Univ, Coll Life Sci, Jinan 250014, Shandong, Peoples R China

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2017年 / 24卷 / 28期

关键词：

Atrazine; Degradation; Sewage sludge; Microbial community; Diversity; Bioremediation; HERBICIDE ATRAZINE; AQUEOUS-SOLUTION; SURFACE WATERS; BIODEGRADATION; BIOREMEDIATION; STRAIN; SOILS; METABOLITES; BIOCHARS;

D O I：

10.1007/s11356-017-9052-z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, fast atrazine degradation by the mixed bacterial cultures from sewage sludge was investigated. The acquired activated cultures showed great capability in atrazine degradation. The biodegradation process was well fitted into a pseudo-first reaction kinetic model. Atrazine could inhibit the propagation of ammonium oxidation bacteria and nitrite oxidation bacteria, decreasing the ammonium removal rate and the accumulation of nitrite. Only 162-172 reads of Nitrosomonadaceae and no Nitrospirales were detected after atrazine was exposed to the mixed cultures. The bacterial community structures in the cultures under different inoculation conditions (with or without atrazine) were investigated to explore the mechanism of atrazine degradation. Our results show that the genera Thiobacillus and Ferruginibacter were the most possible candidates responsible for the degradation of atrazine.

引用

页码：22152 / 22157

页数：6

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