Isolation of aluminum-tolerant bacteria capable of nitrogen removal in activated sludge

被引：21

作者：

Ji, Bin ^{[1
]}

Chen, Wei ^{[1
]}

Zhu, Lei ^{[1
]}

Yang, Kai ^{[2
]}

机构：

[1] Wuhan Univ Sci & Technol, Sch Urban Construct, Wuhan 430065, Hubei, Peoples R China

[2] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2016年 / 106卷 / 1-2期

关键词：

Activated sludge; Aluminum-resistant bacteria; Phylogenetic analysis; Wastewater treatment; BIOFILM REACTOR; CELL-DEATH; TOXICITY; BURKHOLDERIA; DEGRADATION; WATER; NOV;

D O I：

10.1016/j.marpolbul.2016.03.051

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Four strains of bacteria capable of withstanding 20 mM concentration of aluminum were isolated from activated sludge in a bioreactor. 16S rRNA identification and morphological characteristics indicated that these strains were Chryseobacterium sp. B1, Brevundimonas diminuta B3, Hydrogenophaga sp. B4, and Bacillus cereus B5. Phylogenetic analysis revealed the position and interrelationships of these bacteria. B. diminuta B3 and Hydrogenophaga sp. B4 could achieve-nitrate nitrogen removal of 94.0% and 76.8% within 36 h of its initial concentration of 148.8 and 151.7 mg/L, respectively. Meanwhile, B3 and B4 could degrade ammonia with little nitrite accumulation. Results of this study provide more information about aluminum-resistant bacteria and laid the foundation for aluminum salt when it is simultaneously used for chemical precipitation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：31 / 34

页数：4

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