DUAN Zhuang,CHEN Shi-hao,YAO Juan-juan,et al. Wastewater Quantity and Quality Characteristics of Combined Sewer System in Urban Village in Shallow Hilly Region of Zhuhai City [J].China Water & Wastewater,2020,36(13):101-105.
Wastewater Quantity and Quality Characteristics of Combined Sewer System in Urban Village in Shallow Hilly Region of Zhuhai City
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
13
Page:
101-105
Column:
Date of publication:
2020-07-01
- Keywords:
- urban village; combined sewer overflows (CSO); urban drainage system; wastewater quality and quantity characteristics; hilly region
- Abstract:
-
The pollution of combined sewer overflows has become one of the important reasons for the formation of blackodor water. In order to optimize the remediation effect of black-odor water, wastewater quantity and quality of combined sewer system in Jiechong Village, Zhuhai City were monitored. The combined sewer system of this typical urban village had the same drainage system pattern of typical small towns in the south of China, which had obvious double peaks and inhomogeneity with the flow hourly variation coefficient of 1.73 and the flow daily variation coefficient of 1.27. There were serious leakage problems in the combined sewer system, in which the proportion of water seepage was about 40%-50%. The concentration of pollutants in the drainage system could be significantly increased by transforming the combined sewer system into separate sewer system. However, problems of the pipeline could still not be ignored. The concentration of COD in urban sewage was still within the typical concentration range of urban sewage, but the concentrations of TN, NH3-N and TP were relatively high, which was about 50%-100% higher than that of general urban sewage.
Last Update:
2020-07-01