Changes of biomass and bacterial communities in biological activated carbon filters for drinking water treatment

被引：116

作者：

Liao, Xiaobin ^{[1
]}

Chen, Chao ^{[1
]}

Wang, Zhao ^{[2
]}

Wan, Rui ^{[2
]}

Chang, Chih-Hsiang ^{[2
]}

Zhang, Xiaojian ^{[1
]}

Xie, Shuguang ^{[2
]}

机构：

[1] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China

[2] Peking Univ, Minist Educ, Key Lab Water & Sediment Sci, Coll Environm Sci & Engn, Beijing 100871, Peoples R China

来源：

PROCESS BIOCHEMISTRY | 2013年 / 48卷 / 02期

关键词：

Microbial community; Drinking water; Alphaproteobacteria; Sphingomonas; Biofiltration; Biodegradation; NATURAL ORGANIC-MATTER; MICROBIAL COMMUNITY; ANTHRACENE BIODEGRADATION; TREATMENT-PLANT; BAC FILTRATION; RIBOSOMAL-RNA; REMOVAL; BIOFILTER; BIOREMEDIATION; HETEROGENEITY;

D O I：

10.1016/j.procbio.2012.12.016

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Biological activated carbon (BAC) filtration can usually perform well in removal of biodegradable organic compounds in drinking waters. In this study, a pilot-scale down-flow BAC filtration system was constructed for treatment of ozonated waters. The changes of biomass concentration and bacterial community in the BAC filters with contact time and service time were characterized using phospholipid fatty acid (PLFA) analysis and 16S rRNA gene clone library analysis, respectively. The operational results indicated the BAC filtration system could effectively remove dissolved organic carbon (DOC) and assimilable organic carbon (AOC). Biomass concentration decreased with contact time, but showed only a slight change with service time. Contact time and service time could affect the microbial community structure. Alphaproteobacteria was the largest bacterial group and might have important links with the DOC and AOC removal. This work might provide some new insights into microbial community and biological process in the drinking water biofilters. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：312 / 316

页数：5

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