WANGYong,ZHAOPing,XIEYa-wei,et al.Parameters of Runoff Pollution Control Models of Sponge City[J].China Water & Wastewater,2022,38(23):129-133.
Parameters of Runoff Pollution Control Models of Sponge City
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第23期
Page:
129-133
Column:
Date of publication:
2022-12-01
- Keywords:
- sponge city; runoff pollution control; model; residential area; Hangzhou
- Abstract:
- Sponge city reduces runoff pollution through low impact development modes. However, it is difficult to comprehensively monitor the quantification of pollution reduction, and the work is usually accomplished with the help of model simulation. Therefore, it is crucial to set model parameters. In addition, research on SS index is more thorough, while the research on other indexes such as COD, ammonia nitrogen and TP is less. This paper analyzed the development process of SS index from removal rate to reduction rate, suggested the parameters of accumulation and wash-off models of COD, ammonia nitrogen and TP by summarizing the existing research results in Hangzhou, and proposed the value of degradation parameter K in combination with different terrains. According to the principle of overall error control, the accumulation, wash-off and degradation parameters of Hangzhou runoff pollution control model were calibrated based on the off-line monitoring data of runoff quality in different residential areas in Shangcheng District, Hangzhou under different types of rainfall scenarios, which provided practical support for the application of model parameters.
Last Update:
2022-12-01