| 稀土湿法冶炼废水处理与资源化研究 |
| 摘要点击 993 全文点击 1576 投稿时间：1998-09-08 |
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| 中文关键词 稀土 清洁生产 湿法冶炼 废水处理 资源回收 |
| 英文关键词 rare earths cleaner production hydro-smelting resource recovery wastewater treatment |
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| 中文摘要 |
| 对某稀土湿法冶炼工艺进行了以清洁生产为核心的技改方案研究。在清洁工艺设计的基础上,通过工艺原理分析和试验,说明其革新工艺的经济有效性:从酸浸废液中年回收硫酸亚铁3000t;从碱转废液中年回收硫酸钠3000t;从废水中回收冰晶石,氟回收率86%;生产废水排放量削减58%;废水泥量削减90%;直接经济效益年150万元以上;排水中F-和含盐量均可达到排放标准要求。 |
| 英文摘要 |
| In the paper,cleaner production is being adopted to the technological transformation of rare earths hydrosmelting.On the basis of the cleaning process design the economy and reasonability were expounded by tests and analysis of process principle:reuse 3000t/a FeSO4·7H2O from acid wastewater;reuse 3000t/a Na2SO4 from alkaline wastewater;F- could be recovered at the rate of 86%;the quantity of wastewater can be reduced by 58% and of waste rock can be reduced 90%;the economical benefits can reach above 150 ten thousand Yuan per year the effluent meet with the national standards. |
