An Engineering Example of Combined Process of Coagulation Precipitation+UASB+A/O for Treatment of Spice Waste water
In view of the characteristics of the production wastewater in a certain fragrance research and development base in Jiangxi Province,such as high concentration,complex composition,high color intensity and biological toxicity,a method of classifying and collecting process wastewater and other wastewater was adopted.Process wastewater was dephosphorized and pH regulated in its coagulation and precipitation process unit,other wastewater was removed from its coagulation and precipitation process unit,and the final process wastewater and other wastewater were mixed into the UASB+A/O system in a ratio of 1∶2.The results showed that the total phosphorus(TP≥200 mg/L)in process wastewater was the key factor affecting the treatment cost.Hydroxylamine wastewater was blended with process wastewater every day,and the daily treatment capacity was about 0.5 m3.At present,after the preparation of production wastewater,the wastewater treatment process run stably,the drainage was better than the takeover standard of the park sewage plant,and the wastewater treatment cost was within the acceptable range.
万方数据
维普
