Denitrification using PBS as carbon source and biofilm support in a packed-bed bioreactor.

Environmental Science and Pollution Research International
Weizhong WuJianlong Wang

Abstract

Biodegradable polymer was used as carbon source and biofilm support for nitrate removal from aqueous solution as an attractive alternative for biological denitrification. The objective of this paper was to investigate the denitrification performance and microbial community of a packed-bed bioreactor using poly (butanediol succinate) (PBS), a biodegradable polymer, as carbon source and biofilm support. NO(3)-N concentration was determined by UV spectrophotometer. NO(2)-N concentration was assayed by hydrochloric acid naphthyl ethylenediamine spectrophotometry method. Total organic carbon (TOC) was measured using a TOC analyzer. The morphology of the samples was observed using an environmental scanning electron microscope (ESEM). The microbial community was analyzed by pyrosequencing method. The experimental results showed that an average removal efficiency of nitrate was 95 %. ESEM observation and FTIR analysis indicated the changes of PBS granules before and after microbial utilization. Pyrosequencing results showed that Betaproteobacteria predominated, and most of PBS-degrading denitrifying bacteria were assigned to the family Comamonadaceae. Denitrifying bacteria accounted for 13.02 % in total population. The PBS granules wer...Continue Reading

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Citations

Sep 4, 2015·Environmental Science and Pollution Research International·Qian ZhangXiaoyi Xu
Oct 11, 2015·Bioresource Technology·Xinqiang LiangGuangming Tian
Jul 12, 2016·Biotechnology Advances·Jianlong Wang, Libing Chu
Jan 30, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Jian ZhangBo Yang
Nov 27, 2019·International Journal of Environmental Research and Public Health·Qian ZhangLijie Zhang
Apr 13, 2020·Environmental Science and Pollution Research International·Zhongchen YangWeizhong Wu
Jul 16, 2019·Environmental Science and Pollution Research International·Zhongshuo XuXiaoli Chai
Nov 2, 2019·International Journal of Environmental Research and Public Health·Qian ZhangTiantao Zhao
Mar 18, 2021·Environmental Science and Pollution Research International·George Kwame Amoako-NimakoFangmin Chen
May 31, 2021·The Science of the Total Environment·Jiawei YangHuan Li
Jul 3, 2021·The Science of the Total Environment·Yunmeng Pang, Jianlong Wang

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