|
|||||
|
|
| 壳聚糖及其衍生物对染料废水的脱色研究 | |
| 引用本文： | 陈忻,孙恢礼,潘嘉慧.壳聚糖及其衍生物对染料废水的脱色研究[J].环境科学与技术,2007,30(9):86-88. |
| 作者姓名： | 陈忻 孙恢礼 潘嘉慧 |
| 作者单位： | 1. 中国科学院南海海洋研究所,广州,510301;中国科学院研究生院,北京,100049;佛山科学技术学院化学与化工系,佛山,528000 2. 中国科学院南海海洋研究所,广州,510301;中国科学院研究生院,北京,100049 3. 佛山科学技术学院化学与化工系,佛山,528000 |
| 基金项目： | 广东省第一批科学事业费计划 , 广东省佛山市科技发展专项基金 |
| 摘 要： | 利用羧甲基壳聚糖(NOCC)复配聚丙烯酰胺(PAM)对3种水溶性染料模拟废水进行絮凝脱色处理,研究了溶液的酸度、絮凝剂与助凝剂的投加量等因素对脱色率的影响。实验结果表明,引入PAM作为助凝剂的脱色效果优于单纯使用羧甲基壳聚糖。处理此染料废水的最佳pH值为2.3,羧甲基壳聚糖的质量浓度为480mg/L,PAM投加量为4～8mg/L。在此优化条件下,复合絮凝剂对三种染料废水的脱色率为99%,COD去除率为90%;用壳聚糖/稀土复合膜处理染料废水时,对直接黑FF、还原红F3B染料废水的脱色率分别达到94.7%和98.2%,明显优于单纯壳聚糖膜。 |
| 关 键 词： | 羧甲基壳聚糖 聚丙烯酰胺 染料废水 脱色 壳聚糖/稀土复合膜 |
| 文章编号： | 1003-6504（2007）09-0086-03 |
| 修稿时间： | 2006-10-12 |
Decolorization of Dyeing Wastewater Using Chitosan Materials |
|
| CHEN Xin,SUN Hui-li,PAN Jia-hui.Decolorization of Dyeing Wastewater Using Chitosan Materials[J].Environmental Science and Technology,2007,30(9):86-88. | |
| Authors: | CHEN Xin SUN Hui-li PAN Jia-hui |
| Abstract: | The investigation on decolorization of dyeing wastewater was conducted using a combination of coagulant,carboxymethyl chitosan(NOCC)and coagulant aid,polyscrylamide(PAM).Factors influencing the decolorization efficiency including pH value,coagulant and dosage of coagulant were discussed.Results showed that using PAM as coagulant aid could result in a high decolorization efficiency comparing with that using NOCC alone.Under the optimal conditions of pH 2.3,480mg/L for NOCC and 4～8mg/L for PAM,the rate of decolorization could achieve 99% and removal of COD 90%.The membrane process with chitosan/rare-earth metals could enhance decolorization rate of Direct Black FF to 94.7%,and Indanthrene Red F3B to 98.2% respectively. |
| Keywords: | carboxymethyl chitosan polyscrylamide(PAM) dyeing wastewater decolorization chitosan/rare-earth membrane |
| 本文献已被 维普 万方数据 等数据库收录！ | |
