The harmfulness of coal-ash and slags is discussed.The analysis on the solid wa ste pollution and the economical expen diture can provide a reference for environment protection.

• 详述了火电厂粉煤灰、渣排放造成的危害,并应用效益分析方法对其排放及综合利用进行了效益对比分析,为环保决策部门治理固体废弃物提供参考。