火力发电厂含煤废水处理工艺选择与方案探讨

Discussion on Process Selection and Scheme of Coal Waste Water Treatment in Thermal Power Plant

含煤废水是火电厂燃煤储运系统、地面及除尘后冲洗排放的废水,属工业废水的一部分。含煤废水的处理回用对电厂实现废水零排放具有重要意义。通过某个实际工程,对含煤废水处理回用的主要工艺即平流沉淀池、微孔陶瓷过滤、一体化煤水处理三种工艺进行了分析比较,优选出适合现场条件、经济合理的处理工艺。

Coal waste water is a part of industrial waste water drained from thermal power plant coal storageand transportation system and ash handling flushing. The coal-bearing waste water treatment and reuse is signifi-cant for achieving power plant zero-emissions. This paper makes analysis and comparison among three methods ofcoal-bearing waste water processing as stratosphere sedimentation pool, porous ceramic filter, integral coal-watertreatment, and choose the most rational process for on-site conditions and economy investment.