| 高岭土负载HPCS-MA对亚甲基蓝废水的絮凝性能 |
| |
| 引用本文： | 郭睿,张瑶,高弯弯,韩双,王宁.高岭土负载HPCS-MA对亚甲基蓝废水的絮凝性能[J].化工进展,2019,38(4):1953-1960. |
| |
| 作者姓名： | 郭睿 张瑶 高弯弯 韩双 王宁 |
| |
| 作者单位： | 陕西科技大学,陕西省轻化工助剂重点实验室,陕西 西安 710021;陕西科技大学,陕西省轻化工助剂重点实验室,陕西 西安 710021;陕西科技大学,陕西省轻化工助剂重点实验室,陕西 西安 710021;陕西科技大学,陕西省轻化工助剂重点实验室,陕西 西安 710021;陕西科技大学,陕西省轻化工助剂重点实验室,陕西 西安 710021 |
| |
| 基金项目： | 陕西省重点研发计划(2017ZDXM-GY-087，2017GY-185) |
| |
| 摘 要： | 以羟丙基壳聚糖（HPCS）、马来酸酐（MA）为原料合成N-马来酰化羟丙基壳聚糖（HPCS-MA）。采用红外光谱（FTIR）、核磁共振氢谱（1H NMR）对其结构进行表征。考察了缚酸剂三乙胺用量、反应温度、反应时间及马来酸酐用量对产物羧基含量及特性黏数的影响。结果表明：在缚酸剂用量为5g，反应温度65℃，反应时间6h，马来酸酐用量为4.5g的条件下，产物的羧基含量和特性黏数均达到较佳值，为83.50%和211.96mL/g。利用高岭土负载HPCS-MA处理亚甲基蓝印染废水，研究了pH、投加量、絮凝温度、初始浊度对亚甲基蓝染料脱色性能的影响。结果表明，在亚甲基蓝浓度为3×10-5mol/L的印染废水中，HPCS-MA絮凝脱色的适宜条件为：pH为1～5，投加量为4～8mg/L，温度为20～25℃，浊度为200～400NTU，在此条件下色度去除率均在96.5%以上。
|
| 关 键 词： | 羟丙基壳聚糖 马来酸酐 亚甲基蓝 脱色 |
| 收稿时间： | 2018-07-12 |
Flocculation performance of kaolin loading HPCS-MA on methylene blue wastewater |
| |
| Rui GUO,Yao ZHANG,Wanwan GAO,Shuang HAN,Ning WANG.Flocculation performance of kaolin loading HPCS-MA on methylene blue wastewater[J].Chemical Industry and Engineering Progress,2019,38(4):1953-1960. |
| |
| Authors: | Rui GUO Yao ZHANG Wanwan GAO Shuang HAN Ning WANG |
| |
| Affiliation: | Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, Shaanxi, China |
| |
| Abstract: | Hydroxypropyl chitosan (HPCS) and maleic anhydride (MA) were used as raw materials to synthesize N-maleated hydroxypropyl chitosan (HPCS-MA). FTIR, 1H NMR were used to characterize the structure of the sample. The effect of the amount of acid-binding agent triethylamine, reaction temperature, reaction time and the amount of maleic anhydride on the carboxyl content and intrinsic viscosity of the product was investigated. The results showed that under the conditions of acid binding agent dosage 5g, reaction temperature 65℃, reaction time 6h and MA dosage 4.5g, both carboxyl content and intrinsic viscosity of the product reached a good value of 83.50% and 211.96mL/g. The methylene blue printing and dyeing wastewater were treated with kaolin-loaded HPCS-MA. The effect of pH, dosage, flocculation temperature and initial turbidity on the decolorization performance of methylene blue dye was studied. The results showed that in the printing and dyeing wastewater with methylene blue concentration of 3×10-5 mol/L, the suitable conditions for flocculation and decolorization of HPCS-MA was pH=1—5, dosage was 4—8mg/L, temperature was 20—25℃, initial turbidity was 200—400 NTU. Under these conditions, the chroma removal rate was above 96.5% . |
| |
| Keywords: | hydroxypropyl chitosan maleic anhydride methylene blue decolorization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化工进展》浏览原始摘要信息 |
|
点击此处可从《化工进展》下载全文 |
|
