MA Jia-jia,JI Yan-ping,ZHOU Shuang-yu.Design of Comprehensive Improvement Project of Jiukenghe Water Source Environmental Protection in Zhaoqing City[J].China Water & Wastewater,2020,36(20 20):113-118.
Design of Comprehensive Improvement Project of Jiukenghe Water Source Environmental Protection in Zhaoqing City
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
20 20
Page:
113-118
Column:
Date of publication:
2020-10-17
- Keywords:
- water source; comprehensive improvement; intercepting pollution and controlling source; pre-storage
- Abstract:
- The total area of Jiukenghe drinking water source in Zhaoqing City is 46.42 km2. As drinking water source protection area and reserve water source in the city, the water quality is required to meet class Ⅱ surface water standard. In recent years, with the rapid development of human economic activities, water quality frequently exceeds the required standard. In order to solve the water pollution problems, ammonia nitrogen and total nitrogen, as two main objects exceeding standard, have been removed according to the characteristics of wide project scope, large water area, dramatic change of water volume in time and space as well as large quantity and scattered pollution sources. The separated treatment facilities were built in scattered pollution sources points and the centralized wastewater treatment station was built in concentrated pollution source. Moreover, the pre-storage treatment system had been built before entering the reservoir and finally the deep active water system was set up in the reservoir area. In this way, the four-layer treatment system was established. In addition, the supporting measures such as garbage treatment and desilting were adopted to intercept and treat the pollution sources within the scope of the project in all directions, and finally the goal of restoring class Ⅱ water bodies was achieved, which provided demonstration and reference for the same kind of comprehensive improvement in China.
Last Update:
2020-10-17