| 具有除Cd(Ⅱ)功能的新型高分子絮凝剂的制备 |
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| 引用本文： | 王志科,王刚,徐敏,常青.具有除Cd(Ⅱ)功能的新型高分子絮凝剂的制备[J].工业水处理,2017,37(3). |
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| 作者姓名： | 王志科 王刚 徐敏 常青 |
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| 作者单位： | 兰州交通大学环境与市政工程学院,甘肃兰州,730070 |
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| 摘 要： | 以胺甲基化聚丙烯酰胺(APAM)、二硫化碳、氢氧化钠为原料合成了二硫代羧基化胺甲基聚丙烯酰胺(DTAPAM)。考察了DTAPAM的制备条件。结果表明,在APAM质量分数3.0%,APAM、CS_2、NaOH物质量比1∶2∶2,预反应时间30 min,预反应温度25℃,主反应时间90 min,主反应温度40℃时,DTAPAM除镉性能最好,其最佳投药量随着Cd(Ⅱ)初始浓度的增加而增加。
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| 关 键 词： | 高分子絮凝剂 螯合沉淀 含镉废水 |
Preparation of novel macromolecule flocculant having the function of removing Cd(Ⅱ) |
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| Wang Zhike,Wang Gang,Xu Min,Chang Qing.Preparation of novel macromolecule flocculant having the function of removing Cd(Ⅱ)[J].Industrial Water Treatment,2017,37(3). |
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| Authors: | Wang Zhike Wang Gang Xu Min Chang Qing |
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| Abstract: | A flocculant,called dithiocarboxyl amino-methylated polyacrylamide (DTAPAM),has been synthesized from amino-methylated polyacrylamide (APAM),carbon disulfide (CS2) and sodium hydroxide (NaOH).The preparation conditions of DTAPAM are investigated.The results show that when the concentration of APAM is 3.0％,molar ratio for APAM,CS2 and NaOH is 1:2:2,pre-reaction time is 30 min,pre-reaction temperature is 25 ℃,main-reaction time is 90 min and main-reaction temperature is 40 ℃,the removing capacity of DTAPAM is the best.The optimal dosage increases with the increase of Cd (Ⅱ) initial concentration. |
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| Keywords: | macromolecule flocculant chelation precipitation wastewater containing cadmium |
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