| NF和RO对致突变物和无机离子去除效果比较 |
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| 引用本文： | 李灵芝,周蓉,王占生.NF和RO对致突变物和无机离子去除效果比较[J].环境科学,1997,18(5):65-67. |
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| 作者姓名： | 李灵芝 周蓉 王占生 |
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| 作者单位： | [1]河南省平顶山师专化学系 [2]清华大学环境工程系 |
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| 摘 要： | 以自来水为原水，采用反渗透和纳渗进行深度处理试验研究，比较了２种膜对致突变物和无机离子的去除率。结果表明，ＲＯ和ＮＦ均能使Ａｍｅｓ试验呈阳性的水转变为阴性；ＮＦ对一价阳离子（Ｋ＾＋、Ｎａ＾＋）的去除率比ＲＯ低１０％左右，对二价阳离子（Ｃａ＾２＋、Ｍｇ＾２＋）的去除率略低于ＲＯ，ＮＦ比ＲＯ能多保留一些离子。
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| 关 键 词： | NF膜 RO膜 致突变物 水深度处理 无机离子 净化 |
| 收稿时间： | 1997/3/10 0:00:00 |
Comparison of Effect for Removing Mutagens and Inoganic Ions in Tap Watar by Revese Osmosis and Nanofiltration |
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| Li Lingzhi,Zhou Rong and Wang Zhansheng.Comparison of Effect for Removing Mutagens and Inoganic Ions in Tap Watar by Revese Osmosis and Nanofiltration[J].Chinese Journal of Environmental Science,1997,18(5):65-67. |
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| Authors: | Li Lingzhi Zhou Rong and Wang Zhansheng |
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| Institution: | Dept. of Chem., Pingdingshan Teachers College, Henan, 467002;Dept. of Environ.Eng., Tsinghua Uni., Beijing 100084;Dept. of Environ.Eng., Tsinghua Uni., Beijing 100084 |
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| Abstract: | In order to get superior drinking water,tap water was treated respectively by reverse osmosis (RO) and nanofiltration(NF) in the laboratory.The removal effects of mutagens and ions by Ro and NF were compared.The Ames test results showed that both RO and NF could convert mutagenicity from positive to negative,while the ions removal effects of the RO and NF membranes are different,the removal rate of one valence positive ions (Na +,K +) by NF is tenpercent lower than that by RO,the removal rate of two valence positive ions(Ca 2+ ,Mg 2+ ) is a little lower than that by RO.More ions which are beneficial to human health pass through nanofiltration mombrane into drinking water. |
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| Keywords: | reverse osmosis nanofiltration advanced water mutagens inoganic ions Ames test |
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