Determination Method of CSO Calculation Volume of Storage Tank Based on Design Rainstorm Method
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
8 8
Page:
77-81
Column:
Date of publication:
2020-04-17
- Abstract:
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Based on the storm intensity formula and reasonable method, the corresponding design rainstorm for overflow frequency control standards was proposed. According to the simplified triangular runoff line and the runoff line obtained from the design rainfall process line, the calculation methods of CSO overflow (storage tank capacity) and pre-plant overflow in WWTP were given respectively. Taking Beijing as an example, the relationship curve between the capacity and runoff diversion ratio of the CSO storage tank volume, as well as the designed rainfall runoff of 24 h was obtained by fitting, which can be used in Beijing urban area. The design rainstorm method can make up for the deficiency of the current empirical parameter method in China to some extent, and can provide reference for the reasonable design of CSO storage tank volume.
Last Update:
2020-04-17