| 高磷铁矿湿法脱磷废水除磷工艺及其循环利用 |
| |
| 引用本文： | 夏文堂,陈星宇,李会强.高磷铁矿湿法脱磷废水除磷工艺及其循环利用[J].环境工程,2011(Z1). |
| |
| 作者姓名： | 夏文堂 陈星宇 李会强 |
| |
| 作者单位： | 重庆科技学院冶金与材料工程学院;中南大学冶金科学与工程学院; |
| |
| 基金项目： | 重庆市科委自然科学基金计划资助重点项目(CSTC,2009BA7071) |
| |
| 摘 要： | 以氧化钙为除磷剂,采用化学法对高磷铁矿脱磷废水除磷工艺进行探讨。研究了溶液pH值、反应温度、反应时间及搅拌速度对脱磷的影响。实验结果表明:在酸性含磷废水的pH为10、温度为70℃、反应时间为30 min以及搅拌速度为200 r/min的优化条件下,除磷效果最佳,脱磷率可达99.99%以上,废水的含磷量由3020μg/mL下降到0.5μg/mL以下,完全符合国家第二类污染物综合排放标准的一级标准磷含量要求。采用除磷后废水对高磷铁矿除磷,精矿中的磷含量均在0.1%以下,完全满足高炉冶炼配料要求,达废水减排效果。
|
| 关 键 词： | 高磷铁矿 废水 除磷 循环利用 |
REMOVING PHOSPHORUS FROM THE DEPHOSPHORIZATION WASTE WATER OF HIGH PHOSPHORUS IRON ORE AND ITS CYCLIC UTILIZATION |
| |
| Xia Wentang Chen Xingyu Li Huiqiang.REMOVING PHOSPHORUS FROM THE DEPHOSPHORIZATION WASTE WATER OF HIGH PHOSPHORUS IRON ORE AND ITS CYCLIC UTILIZATION[J].Environmental Engineering,2011(Z1). |
| |
| Authors: | Xia Wentang Chen Xingyu Li Huiqiang |
| |
| Institution: | Xia Wentang1 Chen Xingyu2 Li Huiqiang1(1.School of Metallurgical and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China,2.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
| |
| Abstract: | The oxidation of calcium is used as phosphorus removal agent to remove phosphorus from the dephosphorization waste water of high phosphorus iron ore.The effects of solution pH,reaction temperature,reaction time and stirring speed on dephosphorization were researched in this paper.The results show that on the condition of pH 10,temperature 70 ℃,reaction time 30min and stirring speed 200 r/min,the dephosphorization is the best and can reach 99.99%,and the phosphorus content of waste water decreases from 3020 μg/mL to 0.5 μg/mL and completely accords with the requirement of national discharge standards of the second category pollution.After removing phosphorus,the waste is used to remove phosphorus from the high phosphorus iron ore,the phosphorus content of iron concentration ore is decreased to 0.1% and also fully accords with the requirements of ingredients for blast furnace,and the discharge waste is reduced. |
| |
| Keywords: | high phosphorus iron ore waste water dephosphorization cyclic utilization |
| 本文献已被 CNKI 等数据库收录！ |
|
