某垃圾焚烧发电厂废水“零排放”方式优化

Optimization of"Zero Discharge"Mode of Wastewater Treatment in a Solid Waste Incineration Power Plant

针对某垃圾焚烧厂废水“零排放”的技术需求,通过废水资源化利用量、冷却塔自来水消耗量等指标衡算,结合冷却塔循环水水质分析,提出了新增沉淀系统和膜处理系统的方式来抵消因循环冷却水排水减少带来硬度和氯离子浓度增加的方法。通过废水“零排放”方式优化探索,尝试实现渗沥液“零排放”的同时为垃圾焚烧厂的经济效益提供更大发展空间,在真正意义上实现生活垃圾焚烧发电厂污水“零排放”。

In view of the technical requirements for"zero discharge"of wastewater from a waste incineration plant,based on the current resource utilization of wastewater and water consumption from cooling tower tap combined with the water quality analysis of cooling tower circulating,methods of adding precipitation system and membrane treatment system were proposed to counteract the increase of hardness and chloride ion concentration of circulating cooling water caused by reduced drainage of circulating cooling water.Through the optimization and exploration of the wastewater"zero discharge"method,"zero discharge"of leachate could be possibly achieved.Meanwhile it could provide a possibility of more economic benefits of waste incineration plants.As a result,real"zero discharge"of wastewater from domestic waste incineration power plants would become a truth.