Enrichment and retention of key functional bacteria of partial denitrification-Anammox (PD/A) process via cell immobilization: A novel strategy for fast PD/A application. - 文章详情页

作者：

收录：

EI SCIE PubMed

摘要：

Cell　immobilization　was　used　to　enrich　and　retain　functional　bacteria　within　partial　denitrification-Anammox　(PD/A)　process　to　achieve　its　fast　start-up　for　the　first　time.　To　do　so,　residue　sludge　and　Anammox　sludge　were　immobilized　in　poly　(vinyl　alcohol)/sodium　alginate　(PVA/SA)　gel　for　PD　cultivation　and　Anammox　bacteria　inoculation,　respectively.　Stable　PD　with　NO3--N　to　NO2--N　transformation　ratio　(NTR)　of　72.0%　was　achieved　within　13 days　at　25 °C　and　successfully　combined　with　Anammox　on　14th　day.　The　hydrous　porous　PVA/SA　gel　matrix　played　the　role　of　extracellular　polymeric　substance　(EPS)　and　thus　protected　the　microbes　against　low　temperature.　Satisfactory　nitrogen　removal　rate　(NRR)　(301.6 ± 6.1 g N/(m3·d))　was　achieved　even　when　temperature　decreased　to　13 °C.　The　contribution　of　nitrogen　removal　via　Anammox　was　as　high　as　77.10%.　Abundance　of　Thauera　and　Candidatus　Kuenenia　increased　from　0.9%　and　1.1%　to　30.6%　and　2.1%,　respectively.

关键词：

Anammox Bio-carriers Cell immobilization Partial denitrification Poly(vinyl alcohol)/sodium alginate

作者机构：

[ 1 ] [Jiang Hao]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China
[ 2 ] [Wang Zhong]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
[ 3 ] [Ren Shang]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China
[ 4 ] [Qiu Jingang]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China
[ 5 ] [Zhang Qiong]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China
[ 6 ] [Li Xiyao]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China
[ 7 ] [Peng Yongzhen]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China. Electronic address: pyz@bjut.edu.cn

通讯作者信息：

电子邮件地址：

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至