Partial nitrification of digested sludge liquor with Low C/N and high-concentration ammonia - Details

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Abstract：

The　experimental　system　consisted　of　anoxic　filter　and　aerobic　suspended　carrier　biofilm　reactor.　The　partial　nitrification　was　achieved　and　maintained　stably　in　the　aerobic　reactor　under　normal　temperature(15-29°C　and　high　DO(6-9　mg/L).　The　nitritation　with　70%-80%　nitrite　accumulation　efficiency　was　obtained　when　FA　concentration　was　in　the　range　of　1.0-10.3　mg/L　by　controlling　influent　ammonia　loading　rate(ALR),　ratio　of　alkalinity　and　ammonia　and　HRT　in　the　aerobic　reactor.　The　effluent　nitrite/ammonia　ratio　was　about　1.25　when　the　average　influent　ammonia,　influent　ALR　and　influent　ratio　of　alkalinity　and　ammonia　were　315.80　mg/L,　0.43　kg/(m3　·　d)　and　5.25,　respectively.　So　the　effluent　of　partial　nitrification　process　provided　the　influent　substrate　demand　for　the　following　ANAMMOX　process.　The　integrative　analysis　indicated　that　the　proper　FA　concentration　was　the　main　factor　achieving　the　partial　nitrification.　The　study　developed　a　novel　partial　nitrification　technology　adapt　to　water　characteristics　of　digested　sludge　liquor.

Keyword：

ANAMMOX; FA; Partial nitrification; Sludge liquor; Suspended carrier

Author Community：

[ 1 ] [Zhang, S.-J.]Beijing Drainage Group Company Limited, Beijing 100038, China
[ 2 ] [Zhang, S.-J.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Ma, F.-G.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Cao, X.-S.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Gan, Y.-P.]Beijing Drainage Group Company Limited, Beijing 100038, China
[ 6 ] [Meng, X.-Z.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 7 ] [Zhou, J.]Beijing Drainage Group Company Limited, Beijing 100038, China
[ 8 ] [Wang, H.-C.]Beijing Drainage Group Company Limited, Beijing 100038, China
[ 9 ] [Peng, Y.-Z.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

Reprint Author's Address：

[Cao, X.-S.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

Email：

cao0531@bjut.edu.cn

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Source ：

Environmental Science

ISSN： 0250-3301

Year： 2009

Issue： 6

Volume： 30

Page： 1695-1700

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