高效混凝工艺处理城市污水中试研究

A PILOT SCALE EXPERIMENT ON ENHANCING TREATMENT OF MUNICIPAL WASTEWATER USING FLOCCULATION

进行混凝法强化城市污水处理的中间试验,试验结果表明用该方法处理城市污水时,当进水CODCr、BOD5、SS、NH3-N、T-P分别为191.49、67.06、128.9、19.65、2.370 mg/L,出水分别为43.23、12.7、13.09、7.43、0.180 mg/L,污水总的停留时间为90 min.污水经处理后出水指标达到国家GB8978-1996及广州DB4437-90污水排放一级标准.

A pilot scale experiment has been carried out on enhancing treatment of municipal wastewater by flocculation. The experimental results show that inlet CODCr, BOD5 ,SS, NH3-N,T-P is 191.49 mg/L,67.06 mg/L,128.9 mg/L,19.65 mg/L,2.370 mg/L respectively, and outlet is 43.23 mg/L, 12.7 mg/L, 13.09 mg/L,7.43 mg/L,0. 180 mg/L respectively. The total hydraulic residence time of wastewater is about 90 rain. The quality of the effluent can meet the first - class effluent standards of municipal wastewater （ GB8979 -1996 of state and DB4437 -90 of Guangzhou）