Research And Application Of Sludge Concentration And Regeneration In Sewage Treatment Plant

In recent years,with the continuous expansion of the scale of urbanization in China,the amount of urban sewage generated has continued to increase,the amount of sludge has also increased synchronously and greatly,the difficulty and breadth of sludge treatment have also greatly increased,and domestic sludge treatment has been There is a phenomenon of "heavy water and light sludge",and the sludge contains many pathogens,parasites,heavy metals and other harmful substances.Therefore,sludge treatment has constituted a significant impact on environmental protection,so it is very important for sludge treatment research Important practical significance.This article takes the Nanchong City sewage treatment plant as an example.Through the analysis of the sewage plant's engineering conditions,discharge standards,and existing treatment processes,it analyzes and analyzes its existing sludge treatment plan and points out the existence of the sewage plant sludge treatment.The problem.Based on the above problems of sewage sludge treatment,the sludge content was calculated and analyzed,a new sludge disposal process was designed,the main equipment and instruments were selected,and the improved sludge treatment process was analyzed in detail.It is proposed to use ecologically-cultivated earthworms to treat the sludge of sewage treatment plants,and make secondary use,using earthworms as high-protein feed for feed,medicine,and fishing,thereby forming "low cost,high benefit,and high quality" sludge.The new model of treatment and agricultural production can not only efficiently manage sludge in a centralized manner,but also greatly reduce production costs and further improve economic efficiency.According to the actual situation of construction and operation of the improved actual project,this kind of sludge treatment method is the most promising sludge treatment method for the existing sewage treatment plant.