title: Microbial community in a full-scale drinking water biosand filter.
abstract: To remove turbidity and minimize microbiological risks, rapid sand filtration is one of main drinking water treatment processes in the world. However, after a long-term operation, sand particles will be colonized by microorganisms which can remove biodegradable organic matters and nitrogen compounds. In this study, 16S rRNA gene clone library analysis was applied to characterize the microbial community in a full-scale biosand filter used for drinking water treatment. The results indicate that phylum Nitrospirae and class Alphaproteobacteria were the dominant bacterial groups in the biosand sample collected from the upper filter layer. The dominance of Sphingomonas species might pose a microbiological risk. This work could provide some new insights into microbial community in drinking water biofilter.
authors.forename: Shuo
authors.initials: S
authors.lastname: Feng
authors.forename: Chao
authors.initials: C
authors.lastname: Chen
authors.forename: Qingfeng
authors.initials: Q
authors.lastname: Wang
authors.forename: Zhiyu
authors.initials: Z
authors.lastname: Yang
authors.forename: Xiaojian
authors.initials: X
authors.lastname: Zhang
authors.forename: Shuguang
authors.initials: S
authors.lastname: Xie
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000235:genetics; D044822:Biodiversity; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000235:genetics; D060766:Drinking Water / Q000382:microbiology*; D005374:Filtration / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D012822:Silicon Dioxide
chemical_list: D004269:DNA, Bacterial; D060766:Drinking Water; D012822:Silicon Dioxide