Experiment Study for the Treatment of Pharmaceutical Comprehensive Wastewater

摘要

Combined the actual monitoring results of wastewater of Northeast Pharmaceutical Group, "grill + grit + primary sedimentation (grease) + regulation pool + hydrolytic acidification + contact oxidation + secondary sedimentation" was proposed to applied in the process. The treatment effects of natural sedimentation and coagulation sedimentation on wastewater were discussed after the experiment and pilot test. The influence of COD concentration, hydraulic residence time (HRT), temperature and other effects on the hydrolysis acidification process and improving of B/C ratio were analyzed. In addition, the treatment effects of influent COD concentration, HRT and temperature on the contact oxidation process were explored. The results show that the wastewater can be stabilized to meet emission standards after the process in this study.