4.6 Article

Assessment of extraneous water inflow in separate sewerage system by different quantitative methods

期刊

APPLIED WATER SCIENCE
卷 12, 期 12, 页码 -

出版社

SPRINGER HEIDELBERG
DOI: 10.1007/s13201-022-01793-2

关键词

Infiltration inflow; Extraneous water; Stormwater; Accidental water; Separate sewerage system

向作者/读者索取更多资源

The aim of the research was to assess the amount of extraneous water inflow to the system, with a focus on accidental water and infiltration water. Five quantitative approaches were used, and the results showed that infiltration water was the main source of extraneous water. The share of infiltration water varied depending on the year and the method used, while the share of accidental water was consistently smaller. The study provides valuable insights into the composition and volume of extraneous water in the sewage system.
Extraneous water that inflow to the sewage system is basically divided into two streams-accidental water (mainly rainwater) and infiltration water. The aim of the research was to assess the amount of extraneous water inflow to the considered system. Five different quantitative approaches were applied. Three well-known methods were used: the triangle method, the minimum night flow method, and the moving minimum method. The annual balance of water consumption and sewage supply to the wastewater treatment plant were calculated. Also, some analysis of sewage discharge during wet and dry weather was carried out. The study covered data from 6 years from 2014 to 2019. It was established that the main source of extraneous water was infiltration, because three methods which concern both streams (triangle method, minimum night flow, variability in wet and dry weather) confirm the conclusion. Merely the moving minimum method results differ from the others. In this investigation, accidental water (basically rainwater inflow) poses a significantly less share in the total volume of sewage compared to infiltration water. The total amount of extraneous water was estimated as in the range from 38 to 53% of annual sewage supply to wastewater treatment plant, depending on the year. Share of infiltration and accidental water is changing in different methods. Share of infiltration was in a range between 18 and 68%, depending on the year and the method used. Share of accidental water was in a range between 7 and 22%.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据