经过三年努力,工业废渣综合利用成果于1989年7月18 日通过辽宁省建筑材料工业局主持的省级鉴定,受到专家好评,现已有几家要求转让该成果。 铁尾矿粉和粉煤灰属工业废渣。仅鞍山钢铁公司尾矿粉就年产1300多万吨,而粉煤灰大连地区就年产70多万吨,严重污染环境和占用大量农田。因 After three years of hard work, the results of the comprehensive utilization of industrial waste residue passed the provincial appraisal hosted by the Liaoning Provincial Bureau of Building Materials Industry on July 18, 1989. It was well received by experts and several companies have already requested the transfer of the results. Iron tailings and fly ash are industrial wastes. Only Anshan Iron and Steel Company’s tailings powder produces more than 13 million tons per year, while the fly ash Dalian produces more than 700,000 tons per year, which seriously pollutes the environment and occupies large amounts of farmland. because