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2100万元补贴换来50亿元经济增长

2017-09-05 07:27:07   中国青年网

本报讯(记者谭在龙 通讯员周钢 吴凌 米严青)使用废石膏每吨补贴10元钱,每年平均约700万元的循环经济发展引导资金扶持,不仅让工业废石膏变废为宝,环境污染得到改善,而且直接带动相关产业经济增长约50亿元。记者昨从武汉市发改委获悉,三年来,全市工业副产品石膏实际产生量105.8万吨、利用量98.38万吨,利用率高达92.98%。

工业副产品石膏也称化学石膏或工业废石膏,是指工业生产中因化学反应生成的以硫酸钙为主要成分的副产品或废渣。

“工业副产品石膏经过适当处理,可以替代天然石膏。”市发改委环资处相关负责人介绍说,我市工业副产品石膏主要来源于热电、化工企业。2013年以前,我市超过600万吨的工业副产品石膏基本上以简单堆存为主,容易对土壤造成污染。2013年,武汉市出台《加快推进武汉市大宗固体废弃物资源综合利用三年行动方案(2014—2016)》,企业使用工业副产品石膏每吨补贴10元钱。

“废石膏也有大用处。”据湖北亚东水泥有限公司工程师陶家国介绍,水泥生产中根据不同需求可按照一定比例使用废石膏。废石膏作为原料,可生产硫铝酸盐体系水泥、石膏矿渣水泥、石膏铝矾土膨胀水泥;作为矿化剂,可降低煅烧温度,节约用煤;适量石膏还可改善水泥性能,如强度、收缩性能和抗腐蚀性能。补贴政策极大鼓舞了企业使用废石膏的积极性。去年,亚东水泥工业副产品使用量达24万吨。

市发改委环资处相关负责人透露:“3年时间,每年平均约700万元的循环经济发展引导资金扶持,‘废渣石膏’带动相关产业增值约50亿元经济效益。”

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