WANGXiao-bing,LINYue.Optimization and Practice of Wastewater Zero Discharge Process in a Circular Economy Industrial Park[J].China Water & Wastewater,2022,38(22):116-122.
Optimization and Practice of Wastewater Zero Discharge Process in a Circular Economy Industrial Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第22期
Page:
116-122
Column:
Date of publication:
2022-11-17
- Keywords:
- circular economy industrial park; zero discharge; external MBR; advanced treatment; Fenton oxidation
- Abstract:
- Circular economy industrial park mainly includes municipal solid waste incineration, food waste treatment, feces disposal and municipal sludge disposal, and etc., which produces much high concentration and high ammonia organic wastewater. And circular economy industrial parks are usually far away from urban area that might have imperfect infrastructures and limited environmental capacity. Thus strict discharge standard is required for wastewater treatment and zero discharge of tail water is even required for specific project. The high concentration wastewater of a circular economy industrial park is treated by UASB, external MBR and RO process, while its low concentration wastewater is treated by biochemical treatment, sedimentation, filter and RO. All the effluent after treatment is recycled totally. RO concentrate is treated by membrane reduction, Fenton advanced oxidation, coagulation and sedimentation. The clear liquor after concentrate treatment is recycled. The residual concentrate is used as slag’s cooling water. The capacity of this plant is 3 250 m3/d. The investment is about 95 400 yuan/m3, and occupied area per unit are 8.45 m2/m3.
Last Update:
2022-11-17