生命周期评估
瓦片
清洁生产
环境影响评价
环境科学
废物管理
生产(经济)
煤
陶瓷
资源回收
能源消耗
冶炼
天然气
煤燃烧产物
环境工程
工程类
城市固体废物
废水
材料科学
冶金
经济
复合材料
宏观经济学
生态学
电气工程
生物
作者
Guoxiu Wang,Yu Liu,Suping Cui,Boxue Sun,Xianzheng Gong,Feng Gao,Zhihong Wang
标识
DOI:10.1016/j.jclepro.2020.122846
摘要
China was positioned as the world’s largest producer and consumer of ceramic tiles, accounting for 50% of tile production and 40% of tile consumption in the world approximately. Recently, Chinese ceramic industry has increased its focus on environmental issues with the aim of protecting natural resources and reducing pollutant emission. This study evaluated and compared the environmental impacts of ceramic tiles produced by traditional technology and cleaner production technology using life cycle assessment methodology with “cradle to gate” perspective. The results showed that the energy consumptions and emissions from fuel combustion were the hotspots of the environmental impact caused by tile production. The drying and firing processes were the main contributors to the energy consumption at the ceramic production stage. Moreover, the environmental impact reduction potential of different cleaner production technologies was elaborated in this paper. The results proved that applying natural gas as fuel instead of coal (producer gas) caused less damage on human health and ecosystem but more damage on the resource. The dry-milling process has potential to reduce environmental impacts compared with wet-milling process in all midpoint and endpoint indicators. In addition, the sensitivity analysis of input parameters, transportation distance and qualified products rate was conducted to identify the key parameters that have great influence on the results.
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