利用含氟盐熔剂产生的二次铝灰的危险特性分析  

Analysis on hazardous characteristics of quadratic aluminum dust generated by fluoride flux

作　　者：戴翔 焦少俊[1] 郑洋 张后虎[1] 赵泽华[1] 叶飞 Dai Xiang;Jiao Shaojun;Zhen Yang;Zhang Houhu;Zhao Zehua;Ye Fei(Nanjing Institute of Environmental Sciences of the Ministry of Environmental Protection,Nanjing 210042,China;Solid Waste and Chemicals Management Center of the Ministry of Environmental Protection)

机构地区：[1]环境保护部南京环境科学研究所,江苏南京210042 [2]环境保护部固体废物与化学品管理技术中心

出　　处：《无机盐工业》2018年第11期42-44,共3页Inorganic Chemicals Industry

摘　　要：铝的再利用产业是实现中国资源化利用与可持续发展的重要一环,再利用过程中会产生大量的二次铝灰,若处置不当会引起严重的环境问题。为明确其危险特性,对利用含氟盐熔剂产生的二次铝灰做了分析。结果表明,样品具有反应性和浸出毒性。样品与水反应可释放出氨气,氨气比释放率为10～20 mg/kg;样品氟化物的浸出质量浓度为181～1 910 mg/L,超过标准限值。此外,对二次铝灰的管理和处置工作提出了一些建议。Aluminum reutilization industry is an important part of the resource recycling and sustainable development of China. Numerous quadratic aluminum dusts generated in the reuse process would cause serious environmental problems if they were not handled properly.The hazardous characteristics of the quadratic aluminum dust with fluoride flux were analyzed.Results showed that the samples had reactive characteristics and extraction toxicity characteristics.The samples were able to react with water to release ammonia and the ammonia release rate was at 10-20 mg/kg.The extraction mass concentration of the samples were at 181-1 910 mg/L,exceeding the limit value.Besides ,some suggestions were put forward for the management and treatment of quadratic aluminum dusts.

关 键 词：二次铝灰 含坲盐溶剂 危险特性 浸出毒性 

分 类 号：TQ133.1[化学工程—无机化工]