Aerobic Denitrificaton Characteristics of Bacillus Activated Sludge [芽孢杆菌活性污泥的好氧反硝化特性] - Details

Author：

Li, J. (Li, J..) | Wang, S. (Wang, S..) | Wang, X. (Wang, X..) | Wang, W. (Wang, W..) (Scholars：王伟)

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Scopus PKU CSCD

Abstract：

In　order　to　test　the　effect　of　aerobic　denitrification　of　Bacillus　on　activated　sludge　mixed　bacteria　system,using　Bacillus　subtilis　as　the　additive　of　activated　sludge　(abbreviation　as　Bacillus　activated　sludge)　as　the　main　body　of　the　study,it　was　found　that　the　nitrogen　removal　rate　was　high　under　aerobic　conditions.Then　the　aerobic　denitrification　characteristics　of　the　sludge　under　different　nitrogen　sources(sodium　nitrate　and　sodium　nitrite)　and　different　dissolved　oxygen　mass　concentrations(0.6~2.5　mg/L)　was　studied　by　experiments,　and　the　kinetic　analysis　of　reaction　was　conducted.　The　result　shows　that　the　Bacillus　activated　sludge　has　characteristics　of　aerobic　denitrification,and　it　can　only　reduce　the　nitrite　nitrogen　without　reducing　the　nitrate　nitrogen　under　aerobic　conditions.Additionally,the　effect　of　aerobic　denitrification　decreases　with　the　increase　of　dissolved　oxygen.The　high　rate　of　denitrification　was　found　in　anoxic　stage　as　a　rate　of　12.45　mg/(g•h),　while　the　maximum　aerobic　denitrification　rate　in　aerobic　stage　achieved　50%　of　anoxic　stage,and　decreased　with　the　increase　of　dissolved　oxygen.　©　2018,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

Keyword：

Aerobic denitrification; Bacillus; Bacillus as dominant bacteria in the bioreactor (Bacillus bacteria bioreactor, BBR) technology; Nitrogen source; Reaction kinetics; Specific denitrification rate

Author Community：

[ 1 ] [Li, J.]National Engineering Laboratory for Advanced Treatment and Resource Utilization of Municipal Wastewater, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Li, J.]College of Archetecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Wang, S.]National Engineering Laboratory for Advanced Treatment and Resource Utilization of Municipal Wastewater, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Wang, S.]College of Archetecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Wang, X.]National Engineering Laboratory for Advanced Treatment and Resource Utilization of Municipal Wastewater, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Wang, X.]College of Archetecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
[ 7 ] [Wang, W.]National Engineering Laboratory for Advanced Treatment and Resource Utilization of Municipal Wastewater, Beijing University of Technology, Beijing, 100124, China
[ 8 ] [Wang, W.]College of Archetecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
[ 9 ] [Wang, W.]Qinghai Jieshen Environmental Energy Industry Co., Ltd., Xining, 810009, China

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Source ：

Journal of Beijing University of Technology

ISSN： 0254-0037

Year： 2018

Issue： 10

Volume： 44

Page： 1327-1334

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 3

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