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| 煤泥水pH值对絮凝沉降效果的影响 | |
| 引用本文： | 张景,王泽南,宋树磊. 煤泥水pH值对絮凝沉降效果的影响[J]. 洁净煤技术, 2011, 17(5): 16-18 |
| 作者姓名： | 张景 王泽南 宋树磊 |
| 作者单位： | 1. 中国矿业大学(北京)化学与环境工程学院,北京,100083 2. 山西潞安环保能源开发股份有限公司常村煤矿,山西长治,046102 3. 中国矿业大学化工学院,江苏徐州,221116 |
| 摘 要： | 针对选煤厂循环水浓度高,煤泥水难沉降的特点,研究了煤泥水pH值对絮凝沉降效果的影响。结果表明,煤泥水絮凝沉降应选择中性或偏酸性的环境;非离子型PAM、阳离子型PAM和阴离子型PAM在不同pH值的煤泥水中絮凝沉降效果不同。非离子型PAM在pH值为9,阳离子型PAM和阴离子型PAM在pH值为5时絮凝沉降效果较好。 |
| 关 键 词： | pH值 Zeta电位 PAM 絮凝沉降 吸光度 |
Influence of pH on flocculation and sedimentation of coal slurry |
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| ZHANG Jing,WANG Ze-nan,SONG Shu-lei. Influence of pH on flocculation and sedimentation of coal slurry[J]. Clean Coal Technology, 2011, 17(5): 16-18 | |
| Authors: | ZHANG Jing WANG Ze-nan SONG Shu-lei |
| Affiliation: | ZHANG Jing1,WANG Ze-nan2,SONG Shu-lei3(1.School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China,2.Changcun Coal Mine,Lu'an Environmental Energy Development Co.,Ltd.,Changzhi 046102,3.School of Chemical Engineering and Technology,China University of Mining and Technology,Xuzhou 221116,China) |
| Abstract: | In order to resolve the problems of high concentrations of circulating water and difficult settlement of coal slurry in coal preparation plant,research the influence of pH on flocculation and sedimentation of coal slurry.The results show that neutral or acidic environment help to get better flocculation and sedimentatio effect.Nonionic PAM,cationic PAM and anionic PAM get different flocculation and sedimentation effect in coal slurry with different pH.The effect is the best when pH is 9 for nonionic PAM,5 f... |
| Keywords: | pH Zeta potential PAM flocculation and sedimentation absorbance |
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