GAOJing-wei,HOUFeng,JIANGLe-yong,et al.Design of Modified AAO and Advanced Treatment Process in Ankang Jiangnan Semi-underground Reclaimed Water Plant[J].China Water & Wastewater,2022,38(22):61-66.
Design of Modified AAO and Advanced Treatment Process in Ankang Jiangnan Semi-underground Reclaimed Water Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第22期
Page:
61-66
Column:
Date of publication:
2022-11-17
- Keywords:
- semi-underground construction mode; modified AAO with suspended carrier; ozone contact oxidation
- Abstract:
- Ankang Jiangnan reclaimed water plant is a semi-underground plant. Its design scale is 8×104 m3/d, and the equipment is installed according to recent scale of 6×104 m3/d. The box entrance is 0.5 m higher than the flood control level to meet the flood control requirements of Hanjiang River 50-year return period. Through intensive design, the complex building, science museum and ozone generation room were arranged on the top of the box, and the rest space was built as a landscape park. The main treatment process consists of modified AAO with suspended carrier and ozone contact oxidation tank, and the main indicators of effluent meet the class Ⅳ limit specified in Environmental Quality Standards for Surface Water (GB 3838-2002). The sludge treatment process includes centrifugal dewatering and low temperature drying, and water content of the treated sludge is lower than 60%. Since the operation, the actual effluent quality is always better than the design standard.
Last Update:
2022-11-17