中国煤炭固体废弃物的综合利用

中国是一个以煤为主要能源的发展中国家 .煤在一次能源消耗中占 75.1 % ,高出世界平均数的 1倍 .中国近年煤年产量已达 1 0亿t,同时产出的固体废弃物———煤矸石超过 1亿t.迄今全国已堆积了 30多亿t的煤矸石 ,占据的土地约有 1 .1亿m2 .煤矸石可用以发电、造气、生产化工产品及建筑材料等 .开发利用中国的煤矸石不仅具有重大环境意义 ,而且具有良好的社会和经济效益

Comprehensive Utilization of the Solid Wastes From Coal in China

China is a developing country with coal as its main energy resource.Coal constitutes75.1%of the primary energy consumption,and this is more than twice of the world average consumption level.The current coal production per year reaches 1 billion tons in China,and the solid wastes--gangues amounts to more than 100 million ton.Over the years,the coal gangues have accumulated and have reached over 3 billion tons so far.These mountains of gangues take about 110 million m2 of land.Gangues can be used for generating electricity and gas,producing chemical products and building materials and so on.The development and exploitation of gangues in China is of great environment significance and good social and economic benefits as well.