CHENFan,LUWen-jing,ZOULin,et al.Design and Operation of Intensive Process of a Large-scale Waterworks in Changsha County[J].China Water & Wastewater,2022,38(10):112-115.
Design and Operation of Intensive Process of a Large-scale Waterworks in Changsha County
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第10期
Page:
112-115
Column:
Date of publication:
2022-05-17
- Abstract:
- The current scale of a waterworks in Changsha County is 5×104 m3/d,adopting conventional purification technology. There are some problems such as insufficient capacity of water supply, deterioration of source water quality and poor effluent quality. The scale of the phase Ⅰ reconstruction and expansion project is 10×104 m3/d. In view of the current shortage of land and the characteristics of micro-polluted raw water, the combined purification process consisting of pre-ozonation, ACTIFLO sedimentation tank, TGV filter and disinfection was adopted and the intensive design was carried out to effectively solve the problems such as difficult treatment of the polluted raw water, the lag of the existing technology, insufficient land for project expansion and overload operation. The product water quality of the project is better than the limitations specified in Standards for Drinking Water Quality (GB 5749-2006). The footprint area is only 40% of the national construction standard, the annual water consumption saving after wastewater recycling is 137×104 m3, and the total investment of the project is approximately 30% less than that of similar projects.
Last Update:
2022-05-17