高速公路穿越水源保护区雨水处理站设计

Design of Rainwater Treatment Station along Highway through Water Source Protection Area

当高速公路穿越水源保护区时,应对路面及桥面初期雨水进行收集处理后方可排放。在大广高速水源保护区段的雨水处理工程的设计中,以深圳市南光高速公路和成自泸高速公路工程的设计经验为基础进行了工艺完善,采用类似生物稳定塘的方法处理公路初期雨水,设计中考虑了突发应急状况下的重污染雨水收集和日常的运营管理。

When highway goes through water source protection areas, the initial rainwater from the road should be collected, treated and discharged. By summarizing the design of the rainwater treatment technology between Shenzhen Nanshan-Guangming Highway and Chengdu-Zigong-Luzhou Highway, some improvements of the technology were undertaken and applied to Daqing-Guangzhou Highway in the water source protection segment. A treatment method similar to biological stabilization pond was used to treat the initial rainwater naturally. The collection of heavy polluted rainwater and management of highway unit in case of emergency were be taken into account in the design.