Comparison of effects on partial nitrification between anoxic-oxic and controling DO/HRT process

被引：0

作者：

Zhang J. ^{[1
,2
]}

Zhang Y. ^{[1
]}

Li D. ^{[1
]}

Liang Y. ^{[1
]}

Guan H. ^{[1
]}

Zhao S. ^{[1
]}

机构：

[1] Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing

[2] State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin

来源：

Li, Dong (lidong2006@bjut.edu.cn) | 1600年 / Harbin Institute of Technology卷 / 48期

关键词：

Anoxic-oxic; Continuous stirred-tank reactor (CSTR); Dissolved oxygen (DO); Domestic wastewater; Hydraulic retention time (HRT); Partial nitrification;

D O I：

10.11918/j.issn.0367-6234.2016.08.002

中图分类号：

学科分类号：

摘要：

To compare the effect of two different operational modes on partial nitrification (PN), two-stage continuous stirred-tank reactors (CSTR) 1# (anoxic-oxic) and 2# (controlling DO and HRT) were constructed and operated at room temperature (18-22 ℃). Start-up time, stability, aeration consumption, sludge settling ability, as well as the adaptability to the decreasing of ammonia nitrogen concentration were investigated. PN in 1# and 2# were accomplished in 26 d and 41 d, respectively. When the effluent of an anaerobic/oxic (A/O) process for phosphorous removing (containing ammonia nitrogen 35-43 mg/L) was used as influent, PN was stable both under 1# and 2# condition, however, aeration consumption could be reduced by about 20% in 2#. When the ammonia nitrogen decreasing from 43 to 27 mg/L, PN in 1# would be unstable and the rates of PN decreased to 67.39%. For comparison, PN in 2# could be maintained stable with an ammonia removal rate of >88%. Settleability of sludge was good both in 1# and 2#. Rapid start-up could be achieved through controlling DO and HRT, and a stable and efficient PN could be maintained through anoxic-oxic. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.

引用

下载

页码：11 / 16

页数：5

共 22 条

[11] Kornaros M., Marazioti C., Lyberatos G., A pilot scale study of a sequencing batch reactor treating municipal wastewater operated via the UP-PND process, Water Science and Technology, 58, 2, pp. 435-438, (2008)
[12] Sun Y., Zhang F., Hu H., Et al., Statistical analysis of influent quality characteristics of municipal wastewater treatment plants in Beijing, China, Water & Wastewater Engineering, 1, pp. 177-181, (2014)
[13] Zhang X., Li D., Liang Y., Performance and microbial characteristic of SNAD process for treating domestic sewage in a membrane bioreactor, Journal of Harbin Institute of Technology, 47, 8, pp. 87-91, (2015)
[14] Guo H., Ma F., Shen Y., Effects of DO and pH on nitrosofication, Techniques and Equipment for Environmental Pollution Control, 7, 1, pp. 37-40, (2006)
[15] Zhang Z., Li D., Qiu W., Et al., Achievement and stable operation of partial nitritation for municipal wastewater, Journal of Central South University(Science and Technology), 44, 7, pp. 3066-3071, (2013)
[16] Kornaros M., Dokianakis S.N., Lyberatos G., Partial nitrification/denitrification can be attributed to the response of nitrite oxidizing bacteria to periodic anoxic disturbances, Environmental Science & Technology, 44, 19, pp. 7245-7253, (2010)
[17] Guo J.H., Peng Y.Z., Peng C.Y., Et al., Energy saving achieved by limited filamentous bulking sludge under low dissolved oxygen, Bioresource Technology, 101, 4, pp. 1120-1126, (2010)
[18] Yu R., Chandran K., Strategies of Nitrosomonas europaea 19718 to counter low dissolved oxygen and high nitrite concentrations, BMC Microbiology, 10, 5, pp. 1-11, (2010)
[19] Bournazou M.N.C., Hooshiar K., Arellano-Garcia H., Et al., Model based optimization of the intermittent aeration profile for SBRs under partial nitrification, Water Research, 47, 10, pp. 3399-3410, (2013)
[20] Hao X., Zhu J., Cao X., Situation and development of bulking sludge study:general theories and control measures, Techniques and Equipment for Environmental Pollution Control, 7, 5, pp. 1-9, (2006)

← 1 2 3 →