【摘要】 处理医院污水常用的A2O工艺和AB工艺,磷酸盐去除效果不甚理想,虽然在生物除磷的基础上,补加化学混凝沉淀方法,但去除效果稳定性差。经研究,EM菌+化学除磷强化SBR工艺对COD去除率为>90%。出水磷酸盐浓度达到或接近一级排放标准。更多还原

【Abstract】 The wastewater treatment processes of A2O and AB have been regarded as ideal processes for treatment of hospital wastewater, however the treatment effects have not been so steady in despite of superaddition of Bio- dephosphorization process and chemical coagulation- sediment process. in order to intensify dephosphorization process , the EM bacteria and chemical dephosphorization process were added to SBR process, by these steps the removal rate of COD was exceeded 90%, and the phosphate concentration is closed to or satisfied the first standard for discharge of hospital wastewater.更多还原