Study on Enhanced Pretreatment Process of Coagulation Sedimentation by BAF

Liang Shen; He Li Wang; Jing Xian Qi; Hun Chao Sun

doi:10.4028/www.scientific.net/AMM.71-78.3188

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 71-78Study on Enhanced Pretreatment Process of...

Study on Enhanced Pretreatment Process of Coagulation Sedimentation by BAF

Abstract:

Using coagulation sedimentation process in the advanced treatment of urban secondary effluent which can be recycled to circulating cooling water system in power plant is only perform well on turbidity removal. But the concentrations of organic matter and NH₃ in effluent can not meet the requirements of circulating cooling water. Therefore, the feasibility of biological aerated filter (BAF) as a pretreatment enhancing coagulation sedimentation process was studied. The results show that the BAF pretreatment removes NH₃ effectively, and the turbidity and COD_Cr of effluent of BAF-coagulation sedimentation process is much lower than individual coagulation sedimentation process. The final effluent qualities meet the requirements of circulating cooling water system in power plant.

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Periodical:

Applied Mechanics and Materials (Volumes 71-78)

Pages:

3188-3192

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.71-78.3188

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Online since:

July 2011

Authors:

Liang Shen, He Li Wang, Jing Xian Qi, Hun Chao Sun

Keywords:

Biological Aerated Filter (BAF), Circulating Cooling Water, Coagulation-Sedimentation, Pre-Treatment

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