HAN Mei,LI Yun-feng,YOU Xiao-xu,et al.Microbial Community Characteristics and Metabolic Function in Biofilters of Large Waterworks[J].China Water & Wastewater,2020,36(15 15):18-22.
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Microbial Community Characteristics and Metabolic Function in Biofilters of Large Waterworks

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第36卷 Number: 15 15 Page: 18-22 Column: Date of publication: 2020-08-01
Author(s):
HAN Mei1; LI Yun-feng1; YOU Xiao-xu1; LU Wei-jia1; ZHAO Yang-yang1; LIU Ru-yin2
(1. Beijing Engineering Research Center for Drinking Water Quality, Beijing Waterworks Group Co. Ltd., Beijing 100012, China; 2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China)
Keywords:
biofilter; microbial community structure; metabolic function; waterworks
Abstract:
The activated carbon (or carbon-sand) biofilter is an important process unit in drinking water treatment. In order to optimize operational efficiency of the biofilter, microbial community characteristics and metabolic functions in the biofilters of two large waterworks with source water from South-to-North Water Diversion Project were analyzed by using metagenomics and 16S rRNA high throughput sequencing technology. The results showed that the dominant genera were Sphingorhabdus, Sphingomonas, Hyphomicrobium,norank_f_DSSF69,Phreatobacter, etc. Metagenomic analysis found that the genome of each activated carbon biofilm sample had a relatively complete pathway to degrade aromatic compounds, which was corresponding to the macroscopic removal effect of aromatic proteins by the biofilters. The genomes of activated carbon samples were reconstructed to obtain the dominant genus, and the reconstructed genomes of several species belonging to Sphinomonas had the potential to degrade catechol by means of interposition cleavage.
Last Update: 2020-08-01