Taking a power plant in south China as an example, an environmental design of valley dry ash deposit design was introduced to deal with rainwater which can be easily polluted by ashes and slags.

• 摘要针对燃煤发电厂贮灰场内雨水容易被灰渣污染的特点，以南方某电厂灰场为例，介绍了山谷型干灰场内雨水处理的环保设计思路。