Achieving partial nitritation in sewage treatment system based on treating activated sludge by FNA - 文章详情页

作者：

Ma, Bin (Ma, Bin.) | Wei, Yan (Wei, Yan.) | Wang, Shuying (Wang, Shuying.) (学者：王淑莹) | Chen, Ya (Chen, Ya.) | Peng, Yongzhen (Peng, Yongzhen.) (学者：彭永臻)

收录：

EI PKU CSCD

摘要：

In　order　to　achieve　nitritation/anammox　in　sewage　treatment,　the　feasibility　of　achieving　partial　nitritation　using　free　nitrous　acid　(FNA)　to　treat　activated　sludge　was　studied　in　a　system　treating　real　wastewater.　The　results　showed　that　the　FNA　inhibition　on　NOB　was　stronger　than　that　on　AOB　since　the　decrease　of　nitrite　oxidation　rate　was　more　than　that　of　ammonium　oxidation　rate,　after　treating　activated　sludge　by　FNA.　At　the　same　time,　FNA　inhibition　incresed　with　increasing　FNA　concentration　at　0-0.75　mg　HNO2-NL-1.　The　nitrite　accumulation　rate　(NAR)　was　only　1%　after　seeding　activated　sludge　obtained　from　a　wastwater　treatment　plant,　indicating　that　nitrification　was　happened.　When　FNA　treatment　was　used　with　a　sludge　retention　time　(SRT)　of　15　days,　nitritation　was　achieved　since　NAR　increased　to　above　90%.　The　partial　nitritation　was　achieved,　and　the　ratio　of　NO2--N/NH4+-N　of　effluent　was　1.24　on　average　when　hydraulic　retention　time　(HRT)　decreased　to　2.5　h.　This　effluent　could　meet　the　requirement　of　anammox　reaction.　Thus,　partial　nitritation　could　be　achieved　in　sewage　treatment　system　using　the　activated　sludge　treated　by　FNA　when　SRT　and　HRT　were　controlled.　©　All　Right　Reserved.

关键词：

Sewage Nitration Seed Nitrogen removal Effluents Activated sludge process Wastewater treatment

作者机构：

[ 1 ] [Ma, Bin]Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wei, Yan]Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wang, Shuying]Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Chen, Ya]Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Peng, Yongzhen]Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

彭永臻
[peng, yongzhen]engineering research center of beijing, key laboratory of beijing for water quality science and water environment recovery engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

pyz@bjut.edu.cn

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