北京水务Issue(5)：20-25,6.DOI:10.19671/j.1673-4637.2024.05.004
不同类型雨水箅子内垃圾量调查及对水质影响变化分析
Investigation and analysis of garbage accumulation in different types of rainwater grates and its impact on water quality
曹天昊 1韩杰 2沙川3
作者信息
- 1. 北京市水科学技术研究院 北京 100048
- 2. 河海大学 南京 210024
- 3. 北京北排建设有限公司 北京 100022
- 折叠
摘要
Abstract
In recent years,with the frequent occurrence of urban waterlogging,the"horizontal-vertical combination"of rain grate has been widely adopted to solve the problem of waterlogging caused by storm-water inlet blockage.While the horizontal-vertical combination rain grate increases the capacity of over-flow,and also raises the likelihood of garbage entering the stormwater inlet.To understand the garbage collection situation in different types of rainwater grates and to further explore the influence of garbage in rainwater wells on the water quality of drains and rivers,two types of roads with flat grates,vertical and combined grates were selected as investigation objects.The research showed that the amount of garbage in rainwater well under the horizontal-vertical combination rain grate was higher than that of the flat grate,moreover,the thickness and the filling degree of the former was about 1.4-1.7 times and 1.75-2.00 times higher than the latter.The water quality at discharge outlets and in rivers was closely related to the status of garbage in stormwater wells.Moreover,the value of various pollutants in degraded garbage was obviously higher,which had a more prominent impact on the water quality of drains and then affected the water quality of river channels,and induced the significant siltation phenomenon.It is suggested to opti-mize the existing horizontal-vertical combination rain grate structure,and to add a filter screen at the op-posite grate in the subsequent horizontal-vertical combination renovation.This study can provide a basis for the horizontal-vertical combined renovation of rainwater grate and subsequent daily management.关键词
雨水箅子/平立结合/垃圾量/填满度/水质Key words
rain grate/horizontal and vertical combination/amount of garbage/filling degree/water quality分类
建筑与水利引用本文复制引用
曹天昊,韩杰,沙川..不同类型雨水箅子内垃圾量调查及对水质影响变化分析[J].北京水务,2024,(5):20-25,6.
