Study on the Effect Influence Factors and the Optimal Operating Conditions to Treat the High Ammonia-Nitrogen Wastewater by SDMBR

DOI

10.2991/icsd-16.2017.6How to use a DOI?

Keywords

Sequencing dynamic membrane bioreactor; high ammonia-nitrogen wastewater; optimal running conditions

Abstract

The Sequencing dynamic membrane bioreactor—SDMBR was proposed and adopted in this study to treat the high ammonia-nitrogen wastewater according to the features of its wide sources, large emission, high difficulty to be treated and easily lead to serious eutrophication etc. Then, the effluence factors including HRT,MLSS,DO, and pH values, the treatment effect, And the optimum operating conditions of the reactor were deeply researched and analyzed by the single element, orthogonal experiments and the range analysis ,the results were as following, Firstly, the period for the sludge acclimation and to start successfully of the SDMBR was 30 days, and the reactor has high treatment efficiency in this period with high ammonia nitrogen removal rate of more than 90%with the influent ammonia nitrogen Concentration of 130mg/L, Then, the single factor experiments including MLSS,DO,HRT and pH value were designed and operated and the optimum operating conditions were got as the MLSS, DO, HRT and pH value were 4000~6000mg/L 2~4mg/L 12h~18h and7~9 respectively. Thirdly, through orthogonal test and range analysis to HRT, MLSS, DO and pH value, the experiment obtained that, according to influence degree, the 4 above-mentioned factors influencing on COD removal rate were sorted by HRT, MLSS, DO and pH value in descending order, and the operating parameters of HRT, MLSS, DO and pH value were 18h, 5g/L, 4mg/L and 7-9 respectively.Finally, through orthogonal test and range analysis to HRT, MLSS, DO and pH value , the optimal operating parameters of the SDMBR were pH value of 8, DO of 4mg/L, MLSS of 5g/L and HRT of 15h to treat the high ammonia-nitrogen wastewater. And the average total removal rates of COD,NH4+-N,TN under this optimal operating parameters were 94.64%, 95.31% and 77.62% respectively

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhi-Yong Han
AU  - Bao-Chuan Qi
AU  - Ling Li
AU  - Yan Kong
AU  - Kun Han
PY  - 2016/12
DA  - 2016/12
TI  - Study on the Effect Influence Factors and the Optimal Operating Conditions to Treat the High Ammonia-Nitrogen Wastewater by SDMBR
BT  - Proceedings of the 2nd 2016 International Conference on Sustainable Development (ICSD 2016)
PB  - Atlantis Press
SP  - 32
EP  - 37
SN  - 2352-5401
UR  - https://doi.org/10.2991/icsd-16.2017.6
DO  - 10.2991/icsd-16.2017.6
ID  - Han2016/12
ER  -