白钨加温精选废水处理技术研究及应用
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- 英文论文题名：Study and Application of the Technology of Scheelite Heating Cleaning Wastewater Treatment
- 论文作者：邓双丽 ; 亢建华 ; 王延锋
- 年：2016
- 作者机构：洛阳栾川钼业集团股份有限公司;中南大学资源加工与生物工程学院;
- 论文关键词：白钨精选废水 ; 硅酸根离子 ; 硫酸
- 英文论文关键词：scheelite cleaning wastewater ; silicate ion ; sulphuric acid
- 会议召开时间：2016-12-26
- 会议录名称：《中国钨业》创刊三十周年钨业发展报告会暨六届五次理事会论文集
- 语种：中文
- 分类号：X753
- 学会代码：ZGWQ
- 会议名称：《中国钨业》创刊三十周年钨业发展报告会暨六届五次理事会
- 会议地点：中国北京
- 主办单位：中国钨业协会
- 学会名称：中国钨业协会
- 页数：6
- 文件大小：580k
- 原文格式：D
- 会议级别：全国
摘要
白钨加温精选废水存在硅酸根离子浓度高,碱性强,沉降难等特点,尾矿废水经尾矿库自然沉降后,回水中仍残留大量的硅酸根离子,对白钨矿粗选回收率造成很大的影响。本文研究了常用废水处理药剂以及酸对硅酸根离子去除率的影响,结果表明硫酸对硅酸根离子的去除效果最好,当硫酸用量为6 g/L时,硅酸根离子的去除率达到93.6%,上清液呈无色透明;工业试验结果表明:15年12月份硫酸用量为3.72 t/d时,回水中硅酸根离子的去除率为56.20%,现场白钨矿粗选指标稳定,粗选回收率比前两年同期分别提高18.21%和5.39%,实现了选矿废水的综合利用。
Scheelite cleaning wastewater has the characteristics of high concentration of silicate ions,strong basicity and difficult settlement. After the natural sedimentation of tailings,the residual silicate ions in recycle water have great influence on the scheelite roughing recovery. The paper studied the common waste water treatment agent and acid on the removal rate of the silicate ion,results show that sulfuric acid is the best,when sulfuric acid dosage is 6 g/L,the silicate ion removal rate reaches 93.6 %,the water after treating is colorless and transparent;Industrial test results show that sulfuric acid dosage was 3.72 t/d in December 2015,the silicate ion removal rate was 56.20 %,the roughing index in the field was stable,and the recovery rate was increased by 18.21 % and 5.39 % respectively compared with the same period in the previous two years,realizing the comprehensive utilization of mineral processing wastewater.
Scheelite cleaning wastewater has the characteristics of high concentration of silicate ions,strong basicity and difficult settlement. After the natural sedimentation of tailings,the residual silicate ions in recycle water have great influence on the scheelite roughing recovery. The paper studied the common waste water treatment agent and acid on the removal rate of the silicate ion,results show that sulfuric acid is the best,when sulfuric acid dosage is 6 g/L,the silicate ion removal rate reaches 93.6 %,the water after treating is colorless and transparent;Industrial test results show that sulfuric acid dosage was 3.72 t/d in December 2015,the silicate ion removal rate was 56.20 %,the roughing index in the field was stable,and the recovery rate was increased by 18.21 % and 5.39 % respectively compared with the same period in the previous two years,realizing the comprehensive utilization of mineral processing wastewater.
引文
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[5]冯秀娟,刘祖文,朱易春.混凝剂处理选矿废水的研究[J].矿冶工程,2005(04):27-29.
[6]佟瑞利,赵娜娜,刘成蹊等.无机、有机高分子絮凝剂絮凝机理及进展[J].河北化工,2007(03):3-6.
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