Effects of the C/N ratio and bacterial populations on nitrogen removal in the simultaneous anammox and heterotrophic denitrification process: Mathematic modeling and batch experiments

被引:64
作者
Bi, Zhen [1 ,2 ]
Takekawa, Masashi [2 ]
Park, Giri [2 ]
Soda, Satoshi [2 ]
Zhou, Jiti [1 ]
Qiao, Sen [1 ]
Ike, Michihiko [2 ]
机构
[1] Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ China, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China
[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan
关键词
Anammox; Heterotrophic denitrification; Mathematic model; C/N ratio; Nitrogen removal; ANAEROBIC AMMONIUM OXIDATION; PSEUDOMONAS-DENITRIFICANS; WASTE-WATER; SAD PROCESS; SLUDGE; CARBON; BIOFILM; NITRITE; NITRATE; NITRIFICATION;
D O I
10.1016/j.cej.2015.06.028
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A mathematic model was developed for describing the nitrogen and organic carbon removal via the simultaneous anaerobic ammonium oxidation (anammox) and heterotrophic denitrification (SAD) process. The model considered anammox bacteria, heterotrophic denitrifying bacteria, ammonium, nitrite, nitrate, and readily biodegradable carbon. The model parameters were calibrated by using the experimental data in the single batch reactors inoculated with anammox sludge of 190 mg-VSS/L and activated sludge of 110 or 220 mg-VSS/L for treating wastewater containing ammonium of 30 mg-N/L and nitrate of 40 mg-N/L. The rapid depletion of nitrate and acetate as the sole carbon source were observed in the reactor. Subsequently, the temporarily accumulated nitrite was removed with ammonium. The initial C/N ratio of 1.5-2.0 and the population ratio of heterotrophic denitrifying bacteria to anammox bacteria within 0.3-0.4 were suitable conditions for the batch SAD process. The sensitivity analysis of kinetic parameters revealed that the most influential parameters for the nitrogen and organic carbon removal were the half-saturation constants for nitrite of heterotrophic bacteria and anammox bacteria and the anoxic reduction factors of heterotrophic bacteria on the nitrate-reducing rate and the nitrite-reducing rate, which closely associated with nitrite accumulation in the SAD process. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:606 / 613
页数:8
相关论文
共 31 条
[1]   Fast start-up of Anammox process with appropriate ferrous iron concentration [J].
Bi, Zhen ;
Qiao, Sen ;
Zhou, Jiti ;
Tang, Xin ;
Zhang, Jie .
BIORESOURCE TECHNOLOGY, 2014, 170 :506-512
[2]   Improvement of the settling properties of Anammox sludge in an SBR [J].
Dapena-Mora, A ;
Arrojo, B ;
Campos, JL ;
Mosquera-Corral, A ;
Méndez, R .
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2004, 79 (12) :1417-1420
[3]   Advanced nitrogen removal with simultaneous Anammox and denitrification in sequencing batch reactor [J].
Du, Rui ;
Peng, Yongzhen ;
Cao, Shenbin ;
Wu, Chengcheng ;
Weng, Dongchen ;
Wang, Shuying ;
He, Jianzhong .
BIORESOURCE TECHNOLOGY, 2014, 162 :316-322
[4]  
Fujii T, 2002, J BIOSCI BIOENG, V94, P412, DOI 10.1263/jbb.94.412
[5]   Development of single-stage nitrogen removal using anammox and partial nitritation (SNAP) and its treatment performances [J].
Furukawa, K. ;
Lieu, P. K. ;
Tokitoh, H. ;
Fujii, T. .
WATER SCIENCE AND TECHNOLOGY, 2006, 53 (06) :83-90
[6]   The contrast study of anammox-denitrifying system in two non-woven fixed-bed bioreactors (NFBR) treating different low C/N ratio sewage [J].
Gao, Fan ;
Zhang, Hanmin ;
Yang, Fenglin ;
Qiang, Hong ;
Zhang, Guangyi .
BIORESOURCE TECHNOLOGY, 2012, 114 :54-61
[7]   Nitrite accumulation under constant temperature in anoxic denitrification process: The effects of carbon sources and COD/NO3-N [J].
Ge, Shijian ;
Peng, Yongzhen ;
Wang, Shuying ;
Lu, Congcong ;
Cao, Xu ;
Zhu, Yunpeng .
BIORESOURCE TECHNOLOGY, 2012, 114 :137-143
[8]   Denitrification kinetics of high nitrate concentration water: pH effect on inhibition and nitrite accumulation [J].
Glass, C ;
Silverstein, J .
WATER RESEARCH, 1998, 32 (03) :831-839
[9]   Activated Sludge Model No. 3 [J].
Gujer, W ;
Henze, M ;
Mino, T ;
van Loosdrecht, M .
WATER SCIENCE AND TECHNOLOGY, 1999, 39 (01) :183-193
[10]   Propionate oxidation by and methanol inhibition of anaerobic ammonium-oxidizing bacteria [J].
Güven, D ;
Dapena, A ;
Kartal, B ;
Schmid, MC ;
Maas, B ;
van de Pas-Schoonen, K ;
Sozen, S ;
Mendez, R ;
Op den Camp, HJM ;
Jetten, MSM ;
Strous, M ;
Schmidt, I .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2005, 71 (02) :1066-1071