In order to deal with the large amount of existing steel smelting slag,multiple disposal methods developed and coexist.The government also encourages multiple industries to innovate disposal technologies to comprehensively manage it while meeting environmental protection requirements.The newly revised national standard affirms the legality and compliance of steel and metallurgical slag backfilling for ecological restoration,and provides specific work content.After discussion of the ecological remediation model of goafs in phosphogypsum backfilling in Kunming,local standards in Inner Mongolia,and management regulations in Baotou City,it is clarified that the comprehensive calculation of environmental risks based on the background value of the backfill site combined with the leaching toxicity of the backfill slag is the evaluation method for the ecological remediation model of slag backfilling.and the project implementation requires full process management.
关键词
钢铁冶炼渣/回填/生态修复
Key words
slag from steel melting/backfilling/ecological remediation
维普
万方数据