Study on Simultaneous Nitrification and Denitrification with Biofilm for Chemical Wastewater

Cai Yan He; Yan Xu; Yan Yan Chen; Sheng Yu; Jing Ming Liu

doi:10.4028/www.scientific.net/AMR.396-398.1944

Paper Titles

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 396-398Study on Simultaneous Nitrification and...

Study on Simultaneous Nitrification and Denitrification with Biofilm for Chemical Wastewater

Abstract:

Aiming at the problem of lower removal efficiency of ammonia nitrogen in the activated sludge process for wastewater treatment plant of Jilin Chemical Company, a few tests were studied such as filler selection, biological hydrolysis-acidification process, nitrobacteria cultivation, activated sludge process and biofilm process, the feasibility of simultaneous nitrification and denitrification(SND) was developed with biofilm treatment for chemical poor-biological wastewater. The results showed that: SND occurred in the aerobic section, effluent total basicity (TB) in biofilm process was 2mmol / L or more, and was higher than activated sludge process, while the effluent TB in activated sludge process was about 0.1mmol / L,and nitrate produced by activated sludge process was 30mg/L higher than that of biofilm process. Nitrogen removal efficiency using SJ-1-type filler made in Jiangsu Suzhou Purification Group Co., Ltd was 15.01% more than that using combined filler.

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Periodical:

Advanced Materials Research (Volumes 396-398)

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1944-1949

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.396-398.1944

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Online since:

November 2011

Authors:

Cai Yan He, Yan Xu, Yan Yan Chen, Sheng Yu, Jing Ming Liu

Keywords:

Activated Sludge Process, Ammonia Nitrogen Removal, Biofilm Process, Filler

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