Preparation of High Concentration Polyaluminum Chloride with High Alc Content by Membrane Distillation

›› 2011, Vol. 19 ›› Issue (1): 173-176.

• • 上一篇

Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation

赵长伟, 王军, 栾兆坤

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

收稿日期:2010-05-13 修回日期:2010-09-18 出版日期:2011-02-28 发布日期:2011-02-28
通讯作者: ZHAO Changwei, E-mail: zhaocw@rcees.ac.cn
基金资助:
Supported by National Natural Science Foundation of China(50708109,21076219);the National High Technology Research and Development Key Program of China(2007AA06Z339,2009AA062901)

Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation

ZHAO Changwei, WANG Jun, LUAN Zhaokun

State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Received:2010-05-13 Revised:2010-09-18 Online:2011-02-28 Published:2011-02-28
Supported by:
Supported by National Natural Science Foundation of China(50708109,21076219);the National High Technology Research and Development Key Program of China(2007AA06Z339,2009AA062901)

摘要/Abstract

摘要： A direct contact membrane distillation(DCMD)process was applied to prepare high concentration polyaluminum chloride(PACl)with high Al_c content.The changes in total Al concentration(Al_T)and Al species distribution were investigated.The results showed that Al_T increased but the flux decreased with operating time during the DCMD process.The Al_c content increased from 65%to 81% while the Al_b content decreased from 34% to 18%,and the Al_a content was almost 1%in the process.2.1 mol·L^-1 PACl with 81%Al_c was successfully prepared by DCMD method.Thus the DCMD is an effective method for preparing high concentration PACl with high Al_c content.

关键词: polyaluminum chloride, high concentration, membrane distillation, preparation

Abstract: A direct contact membrane distillation(DCMD)process was applied to prepare high concentration polyaluminum chloride(PACl)with high Al_c content.The changes in total Al concentration(Al_T)and Al species distribution were investigated.The results showed that Al_T increased but the flux decreased with operating time during the DCMD process.The Al_c content increased from 65%to 81% while the Al_b content decreased from 34% to 18%,and the Al_a content was almost 1%in the process.2.1 mol·L^-1 PACl with 81%Al_c was successfully prepared by DCMD method.Thus the DCMD is an effective method for preparing high concentration PACl with high Al_c content.

Key words: polyaluminum chloride, high concentration, membrane distillation, preparation

赵长伟, 王军, 栾兆坤. Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation[J]. , 2011, 19(1): 173-176.

ZHAO Changwei, WANG Jun, LUAN Zhaokun. Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation[J]. , 2011, 19(1): 173-176.

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Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation

Preparation of High Concentration Polyaluminum Chloride with High Al_c Content by Membrane Distillation

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