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2010•Journal of Harbin University of CommerceRequires access

Study on domestic wastewater treatment by biological aerated filter

Zuo Jinlong

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Abstract

Biological aerated filter(BAF)with ceramicite material are applied for domestic wastewater treatment.The effects of HRT,aeration and pH value on the treatment efficiency are investigated.The results show that when HRT is 3 to 6 h,the removal of COD and ammonia are 83.7%～90% and 85%;when ammonia is 0.08～0.32 m3/h,the removal of COD and ammonia are 83.4%～86.8% and 85.2%;the pH value varying in the range 6.57～8.72,has no effect on the removal of COD and ammonia in the research.The effluent wastewater quality can meet with second degree discharging standards after treatment.

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What this paper is about

Biological aerated filter(BAF)with ceramicite material are applied for domestic wastewater treatment.The effects of HRT,aeration and pH value on the treatment efficiency are investigated.The results show that when HRT is 3 to 6 h,the removal of COD and ammonia are 83.7%～90% and 85%;when ammonia is 0.08～0.32 m3/h,the removal of COD and ammonia are 83.4%～86.8% and 85.2%;the pH value varying in the range 6.57～8.72,has no effect on the removal of COD and ammonia in the research.The effluent wastewater quality can meet with second degree discharging standards after treatment.

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Available abstract

Biological aerated filter(BAF)with ceramicite material are applied for domestic wastewater treatment.The effects of HRT,aeration and pH value on the treatment efficiency are investigated.The results show that when HRT is 3 to 6 h,the removal of COD and ammonia are 83.7%～90% and 85%;when ammonia is 0.08～0.32 m3/h,the removal of COD and ammonia are 83.4%～86.8% and 85.2%;the pH value varying in the range 6.57～8.72,has no effect on the removal of COD and ammonia in the research.The effluent wastewater quality can meet with second degree discharging standards after treatment.

Key concepts: Aeration, Effluent, Wastewater, Pulp and paper industry, Ammonia, Sewage treatment, Chemistry, Filter (signal processing)

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