| 壳聚糖抑制饮用水中亚硝酸盐形成的研究 |
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| 引用本文： | 徐廷国,陈忻,曹国栋,洪祥乐,谭红转,蔡少杰.壳聚糖抑制饮用水中亚硝酸盐形成的研究[J].精细化工,2003,20(10):619-621. |
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| 作者姓名： | 徐廷国 陈忻 曹国栋 洪祥乐 谭红转 蔡少杰 |
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| 作者单位： | 1. 佛山市供水总公司,广东,佛山,528000
2. 佛山科学技术学院,理学院,广东,佛山,528000 |
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| 摘 要： | 研究了活性炭、壳聚糖及m(活性炭)/m(壳聚糖)=1的混合物对水中亚硝酸盐含量的影响。通过对比研究,发现壳聚糖及m(活性炭)/m(壳聚糖)=1的混合物对饮用水中的亚硝酸盐均有一定去除作用,壳聚糖平均去除率为28 9%,m(活性炭)/m(壳聚糖)=1的混合物平均去除率为54 5%。m(活性炭)/m(壳聚糖)=1的混合物能有效抑制ρ(NaNO3)=1.0mg/L的水溶液中亚硝酸盐的形成,亚硝酸盐氮的质量浓度保持在0 006mg/L以下。
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| 关 键 词： | 壳聚糖 亚硝酸盐 饮用水 活性炭 |
| 文章编号： | 1003-5214(2003)10-0619-03 |
Restraint of Nitrite Formation in Drinking Water by Chitosan |
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| Abstract: | The effect of activated carbon,chitosan and a mixture of activated carbon and chitosan in mass ratio of 1∶1 on the concentration of nitrite in drinking water was compared.The result showed that chitosan and the mixture can eliminate nitrite in drinking water, the average elimination ratio being 289% by chitosan and 545% by the mixture.The 1∶1 mixture of activated carbon and chitosan can restrain the nitrite formation in 10 mg/L sodium nitrate solution to keep the concentration of nitrite nitrogen below 0006 mg/L. |
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| Keywords: | chitosan nitrite drinking water activated carbon |
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