Lab-scale SNAD Process in Wastewater Treatment Plant - Details

Author：

Li, Dong (Li, Dong.) (Scholars：李冬) | Cui, Ya-Qian (Cui, Ya-Qian.) | Zhao, Shi-Xun (Zhao, Shi-Xun.) | Liu, Zhi-Cheng (Liu, Zhi-Cheng.) | Zhang, Jie (Zhang, Jie.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Outside　the　municipal　waste　water　treatment　plant(WWTP)　which　located　in　Mentougou　District,　Beijing,　the　effluent　of　the　anoxic/oxic(A/O)　phosphorus　removal　process　served　as　the　substrate　to　operate　a　completely　autotrophic　nitrogen　removal　over　nitrite(CANON)　filter　reactor..　After　the　reactor　was　successfully　activated,　glucose　was　added　to　the　influent　as　the　organic　carbon　source.　The　simultaneous　partial　nitrification,　anaerobic　ammonium　oxidation　(ANAMMOX),　and　denitrification　(SNAD)　process　was　started　to　study　the　effect　of　SNAD　filter　on　sewage　treatment.　The　results　showed　that　from　119　d　to　128　d,　the　ammonia　removal　rate　of　the　CANON　process　was　more　than　95%,　and　the　maximum　total　nitrogen　concentration　in　the　effluent　was　13.0　mg•L-1.　Total　nitrogen　concentration　surpassed　the　1A　level　of　the　Integrated　Discharge　Standard　of　Water　Pollutants　applied　in　Beijing　City.　The　SNAD　process　was　started　by　adding　glucose　to　the　influent　at　129　d.　The　total　nitrogen　removal　rate　of　this　process　was　about　85%　at　133-187　d,　and　the　total　nitrogen　concentration　in　the　effluent　was　5.5-7.3　mg•L-1.　The　filter　plugged　up　at　195　d,　and　backwash　was　utilized　at　196　d.　During　the　subsequent　30　d,　the　total　nitrogen　removal　rate　of　the　reactor　was　greater　than　85%,　and　the　total　nitrogen　concentration　in　the　effluent　remained　at　6.2-7.2　mg•L-1.　Compared　with　the　CANON　process,　the　SNAD　process　improved　the　total　nitrogen　removal　rate　and　reduced　the　total　nitrogen　concentration　of　the　effluent　by　6　mg•L-1.　The　ammonia　and　total　nitrogen　concentrations　in　effluent　satisfied　the　1A　level　of　the　Integrated　Discharge　Standard　of　Water　Pollutants.　©　2018,　Science　Press.　All　right　reserved.

Keyword：

Effluents Organic carbon Water treatment Sewage treatment Nitrification Sewage Ammonia Effluent treatment Glucose Wastewater treatment Water pollution Nitrogen removal Sewage treatment plants Anoxic water Water treatment plants Filtration Denitrification Passive filters

Author Community：

[ 1 ] [Li, Dong]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering of Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Cui, Ya-Qian]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering of Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Zhao, Shi-Xun]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering of Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Liu, Zhi-Cheng]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering of Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhang, Jie]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering of Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Zhang, Jie]State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin; 150090, China