SHENZheng-dong,WANGZhen-zhong,SHENJun-hong,et al.Combined Wastewater Treatment Process and Tail Water Reclamation in an Industrial Development Zone[J].China Water & Wastewater,2023,39(4):90-95.
Combined Wastewater Treatment Process and Tail Water Reclamation in an Industrial Development Zone
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第4期
Page:
90-95
Column:
Date of publication:
2023-02-17
- Keywords:
- food; printing and dyeing loom wastewater; integrated AAO biochemical sedimentation combined tank; reclamation
- Abstract:
- In order to solve the problems including complex wastewater quality, limited construction land and capital shortage from food, printing and dyeing loom wastewater in an industrial development zone in Suzhou, the sewage treatment plant has designed and constructed two sets of relatively independent processes with flexible scheduling of unit structures and pipelines. The main units of both sets are anaerobic hydrolysis tank, integrated AAO biochemical sedimentation combined tank, flocculation sedimentation tank, and filter cloth filter, wherein the wastewater from printing and dyeing water jet loom is pretreated to remove the oily emulsion by pre-air flotation tank. The designed capability of the sewage plant is 3×104 m3/d, and the effluent fully meets the discharge limits of the primary and secondary protection zones in Discharge Standard of Main Water Pollutants for Municipal Wastewater Treatment Plant & Key Industrial of Taihu Area (DB 32/1072-2018). The qualified tail water is reclaimed in the production process of water jet looms in the development zone. Not only does the reclaimed tail water alleviate the water supply pressure of municipal pipe network and reduce the production cost of enterprises, but also it attracts enterprises with relevant water demand to settle in, which has certain demonstration benefits.
Last Update:
2023-02-17