中国水泥生产环境负荷研究

基于生命周期理论,采用CML环境影响评价方法对我国水泥生产的环境负荷进行了定量分析.结果表明,水泥生产的环境影响主要体现在温室效应、不可再生能源消耗和不可再生资源消耗,其环境负荷分别占对应环境影响类型世界总负荷的2.76%、2.34%和1.39%.2004年我国水泥生产的环境负荷约占世界总负荷的1.28%,其中,立窑生产工艺、湿法回转窑生产工艺和新型干法生产工艺的环境负荷分别为0.84%,0.12%和0.32%.通过行业结构调整,用新型干法生产工艺取代其它落后的生产工艺,可使我国水泥生产的环境负荷降至世界总负荷的1%左右.

Environment load from China's cement production

Based on the life-cycle theory,a quantitative evaluation of the environment load caused by cement manufacturing in China was carried out with the application of the CML environmental impact assessment method.The results show that global warming potential,energy depletion potential and abiotic depletion potential make the main contribution to the environment impact,their environmental loads corresponding to identical environmental impact sorts being 2.76%,2.34% and 1.39% of the overall load of the whole world,respectively.In 2004,the environment load from cement manufacturing in China is roughly 1.28% of the overall load of the whole world,in which the environmental loads from the shaft kiln processing,wet rotary processing and new-type dry processing being 0.84%,0.12% and 0.32%,respectively.And it can be reduced to about 1% by replacing backward production processes with the dry method production process.