Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process - Details

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EI PKU CSCD

Abstract：

The　mature　landfill　leachate　from　sanitary　landfill　is　difficult　to　treat　because　of　complicated　composition,　high　concentration　of　ammonia　and　low　C/N.　During　this　study,　a　CANON　(completely　autotrophic　nitrogen　removal　over　nitrite)　process　with　an　intermittent　aeration/anaerobic　mixing　operational　mode　was　applied　to　remove　nitrogen　from　mature　landfill　leachate.　After　domestication　of　130　d,　the　system　was　stable　with　the　effluent　COD,　N4+-N　and　TN　(mgL-1)　of　40714,　84　and　194　when　the　influent　COD,　N4+-N　and　TN　(mgL-1)　were　2050250,　162575　and　2005352,　respectively.　Nitrogen　removal　from　mature　landfill　leachate　could　be　realized　via　intermittent　aeration/anaerobic　mixing　CANON　process　with　98.76%　of　total　nitrogen　removal　efficiency.　Besides,　the　FISH　(Fluorescence　in　situ　hybridization)　results　showed　that　under　this　operational　mode,　both　aerobic　ammonium　oxidation　bacteria　and　anaerobic　ammonium　oxidizing　bacteria　accounted　for　19.5%±1.3%　and　42.7%±5.02%,　respectively,　which　provided　a　reference　for　CANON　treating　mature　landfill　leachate　in　engineering　application.　©　All　Right　Reserved.

Keyword：

Ammonia Fluorescence microscopy Leachate treatment Mixing Wastewater treatment Chemical oxygen demand Nitrogen removal Aerobic bacteria

Author Community：

[ 1 ] [Zhang, Fangzhai]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 ] [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
[ 3 ] [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
[ 4 ] [Miao, Lei]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 ] [Cao, Tianhao]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
[ 6 ] [Wang, Zhong]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

Reprint Author's Address：

王淑莹
[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

Email：

wsy@bjut.edu.cn

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