| 纳滤处理含Cr(VI)废水的试验研究 |
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| 引用本文： | 张显球,张林生,吕锡武.纳滤处理含Cr(VI)废水的试验研究[J].环境工程学报,2005,6(3):25-27. |
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| 作者姓名： | 张显球 张林生 吕锡武 |
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| 作者单位： | 1. 东南大学环境工程系,南京,210096;南京师范大学动力工程学院,南京,210042
2. 东南大学环境工程系,南京,210096 |
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| 基金项目： | 江苏省科技厅高新技术项目(BG2001028);江苏高校自然科学研究项目(2004112TSJB141) |
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| 摘 要： | 采用纳滤对含Cr(Ⅵ)废水进行试验研究,讨论了初始浓度、pH、浓差极化、共存离子对处理效果的影响.试验结果表明,NF90膜对含Cr(Ⅵ)废水有良好的处理效果,去除率超过了98%,出水Cr(Ⅵ)浓度低于0.5 mg/L,可以达标排放或回用于镀件漂洗.
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| 关 键 词： | 膜分离 纳滤 Cr(Ⅵ) 电镀废水 截留率 浓差极化 |
| 修稿时间： | 2003年12月25 |
Experiments on hexavalent chromium wastewater by nanofiltration |
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| Zhang Xianqiu,Zhang Linsheng,Lu Xiwu.Experiments on hexavalent chromium wastewater by nanofiltration[J].Techniques and Equipment for Environmental Pollution Control,2005,6(3):25-27. |
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| Authors: | Zhang Xianqiu Zhang Linsheng Lu Xiwu |
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| Institution: | Zhang Xianqiu 1,2 Zhang Linsheng 1 Lu Xiwu 1 |
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| Abstract: | The experiments on hexavalent chromium wastewater were conducted. The effects of the initial chromium concentration, pressure, pH, concentration polarization and coexisting ions (Na 2SO 4 and NaCl) on the performance of nanofiltration membranes were investigated. The experimental results showed that the removal efficiency of hexavalent chromium was higher than 98% and its concentrations in permeation liquid were lower than 0 5 mg/L, meeting the Discharge Standard (GB8978 1996) or using as water for washing electroplated products, which verified that nanofiltration is an effective method for the removal of hexavalent chromium. |
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| Keywords: | membrane separation nanofiltration hexavalent chromium wastewater rejection rate concentration polarization |
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