LI Shu-yuan,LIU Hai-yan.Technical Route of Classified Collection and Separate Upgrading of Industrial Wastewater and Domestic Sewage in Shaoxing[J].China Water & Wastewater,2021,37(18 18):56-62.
Technical Route of Classified Collection and Separate Upgrading of Industrial Wastewater and Domestic Sewage in Shaoxing
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
18 18
Page:
56-62
Column:
Date of publication:
2021-09-17
- Keywords:
- industrial wastewater and domestic sewage; classified collection; separate treatment by different quality; dispersed enterprise; centralized pretreatment of industrial wastewater; technical route
- Abstract:
- The national environmental protection department requires that the COD in the industrial wastewater must be treated to less than 200 mg/L in the enterprise before being discharged into the sewage treatment plant in Shaoxing. To meet this requirement, a large number of dispersed enterprises need to reduce the COD in the effluent from 500 mg/L to 200 mg/L, and there are difficulties in terms of investment, land and management. Therefore, the decentralized pretreatment of the industrial wastewater was changed to the centralized pretreatment in the city by using the current sewage treatment facilities, and the classified collection and separate treatment of all the industrial wastewater and domestic sewage were realized. To achieve this goal, the reconstruction plan of Shaoxing sewage transport system was proposed, and the process flow of concentrated pretreatment and advanced treatment of the industrial wastewater was determined. The technical route not only makes rational use of the current treatment facilities, but also achieves the purpose of up-to-standard discharge of the domestic sewage and industrial wastewater. In addition, it also saves project construction investment, improves operation stability and reduces the difficulty of decentralized supervision. This technical route has a certain reference value to similar areas.
Last Update:
2021-09-17