| NF和RO对致突变物和无机离子去除效果比较 |
| 摘要点击 1390 全文点击 2095 投稿时间：1997-03-10 |
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| 中文关键词 NF膜 RO膜 致突变物 Ames试验 水深度处理 无机离子 |
| 英文关键词 reverse osmosis nanofiltration advanced water mutagens inoganic ions Ames test |
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| 中文摘要 |
| 以自来水为原水,采用反渗透(RO)和纳滤(NF)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(Ca2+、Mg2+)的去除率略低于RO,NF比RO能多保留一些离子。 |
| 英文摘要 |
| 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(Ca2+,Mg2+)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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