| 电镀污泥氨浸提铬渣的铁氧体化综合利用工艺 |
| 摘要点击 1690 全文点击 2035 投稿时间：1998-07-19 |
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| 中文关键词 铁氧体 电镀污泥 氨浸提铬渣 综合利用 |
| 英文关键词 ferrite electroplate sludge sediment of ammonia soaked and Cr extracted sludge comprehensive utilization |
| DOI 10.13227/j.hjkx.19990212 |
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| 中文摘要 |
| 通过研究电镀污泥氨浸提铬渣的湿法以及干法湿法相结合的铁氧体化处理工艺,表明湿法铁氧体化(污泥:FeSO4=1:2)和直接高温干法铁氧体化都可以实现电镀污泥氨浸提铬渣的无害化解毒,浸出液中未检出Cr;湿法铁氧体化很难在低Fe2+投入(污泥:FeSO4≤1:6)的情况下实现氨浸提铬渣的综合利用,一次和多次加料所得产品均不合格;湿法和干法相结合的处理工艺可以在低Fe2+投入(污泥:FeSO4=1:2)的情况下使处理后所得到的综合利用产品(磁性探伤粉、铁黑颜料)的性能得到较大改善。 |
| 英文摘要 |
| This paper is focused on the treatment conditions of sediment of ammonia soaked and Cr extraced electroplate sludge by wet and dry ferrite method.The results show that wet (sludge:FeSO4=1:2) and direct dry ferrite method can both detoxify the sediment and there was no Cr in the extracted liquid;the sediment can not be comprehensively utilized through wet method with low Fe2+ adding concentration (sludge:FeSO4≤1:6),no matter single or multiple feed;the method combined with wet and dry processed can improve dramatically the quality of product of sediment (magnetic flaw detecting powder and iron black pigment) with low Fe2+ adding concentration (sludge:FeSO4=1:2). |
