混凝土搅拌车冲洗废水处理工艺研究与应用--以金沙江白鹤滩水电站为例

Research and application of treatment process for washing waste water from concrete mixer truck:case of Baihetan Hydropower Station in Jinsha River

目前对于混凝土搅拌车冲洗废水的处理尚无成熟有效的工艺。以金沙江白鹤滩水电站为例,从混凝土搅拌车冲洗废水水质特性出发,根据废水污染因素的类型,通过调研混凝土搅拌车冲洗废水常用的预处理设备,参考类似生产废水处理方案,提出了一种新型的混凝土搅拌车冲洗废水处理工艺,即砂石分离机+DH高效污水净化器+板框压滤机的处理工艺;并结合该工艺在白鹤滩水电站的实际应用情况,从系统运行管理、创新混凝土搅拌车监管手段、工艺优化等方面进行了总结。相关经验可供类似工程借鉴。

At present,there is no mature and effective treatment process for the concrete mixer truck washing waste water.In this paper,Baihetan Hydropower Station was taken as an example,aiming at the water quality characteristics of washing waste water from the concrete mixer truck,a new type of washing waste water treatment process was proposed by investigating the commonly used pretreatment equipment for washing waste water and referring to the treatment scheme of similar production waste water,namely sand and gravel separator+DH high efficiency sewage purifier+plate and frame filter press.Combined with the practical application of this process in Baihetan Hydropower Station,the system operation management,innovative concrete mixer supervision means and process optimization suggestions were summarized.The relevant experience can be used for reference in similar projects.