Abstract:
The deep-fixed bed filtration process(DFB) has been applied to the advanced denitrification treatment of the effluent from Donggang Sewage Treatmeat Plant. When the DO of effluent is controlled at less than 1 mg/L,HRT=2 h,and sodium acetate=100 mg/L,40%- 60% of the TN in effluent after the treatment can be removed. The result of effluent NH3-N<5 mg/L,and TN<15 mg/L can be achieved. On the other hand,it is found that efficient removal can still be achieved by using the deep-fixed bed filtration process,when it runs at low temperature(5-15 ℃).
Key words:
deep-fixed bed filtration process,
denitrification,
effluent of sewage treatment plants
摘要：
采用深床生物滤池对东港污水处理厂的出水进行深度脱氮处理,出水DO控制在1 mg/L以下,HRT=2 h,乙酸钠投加质量浓度在0.1 g/L,经深床滤池处理后,TN可被消除40%～60%,出水实现NH3-N<5 mg/L,TN<15mg/L的目标.在5～15 ℃的低温运行区间,深床滤池仍然可以实现对TN的有效去除.
关键词:
深床滤池,
脱氮,
污水厂出水
CLC Number:
Wang Qing, Ding Yuanhong, Ren Hongqiang, Gao Yinghai, Liu Minmin, Zeng Chao, Hu Haidong, Yuan Qiwen. Deep-fixed bed filtration process used for the advanced denitrification treatment of effluent from Donggang Sewage Treatment Plant[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(11): 66-68.
王庆, 丁原红, 任洪强, 高映海, 刘敏敏, 曾超, 胡海冬, 袁启文. 采用深床滤池对东港污水厂出水深度脱氮处理[J]. 工业水处理, 2014, 34(11): 66-68.