Boron removal from aqueous solution by direct contact membrane distillation

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	Boron removal from aqueous solution by direct contact membrane distillation
	Hou, Deyin ; Wang, Jun ; Sun, Xiangcheng ; Luan, Zhaokun ; Zhao, Changwei ; Ren, Xiaojing
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2010-05-15
卷号	177 期号:3 页码:613-619
关键词	Membrane distillation Boron removal Rejection Permeate flux
中文摘要	The removal of boron from aqueous solution by direct contact membrane distillation (DCMD) was studied with self-prepared polyvinylidene fluoride (PVDF) hollow fiber membranes in the present work. The effect of pH, boron concentration, temperature and salt concentration of the feed solution on the boron rejection was investigated. The experimental results indicated that boron rejection was less dependent on the feed pH and salt concentration. DCMD process had high boron removal efficiency (>99.8%) and the permeate boron was below the maximum permissible level even at feed concentration as high as 750 mg/L. Although the permeate flux was enhanced exponentially with the feed temperature increasing, the influence of feed temperature on the boron rejection could be neglected. Finally, the natural groundwater sample containing 12.7 mg/L of boron was treated by DCMD process. The permeate boron kept below 20 mu g/L whether the feed was acidified or not, but pre-acidification was helpful to maintain the permeate flux stability. All the experimental results indicated that DCMD could be efficiently used for boron removal from aqueous solution. (C) 2009 Elsevier B.V. All rights reserved.
WOS记录号	WOS:000276154500079
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21212]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Hou, Deyin,Wang, Jun,Sun, Xiangcheng,et al. Boron removal from aqueous solution by direct contact membrane distillation[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,177(3):613-619.
APA	Hou, Deyin,Wang, Jun,Sun, Xiangcheng,Luan, Zhaokun,Zhao, Changwei,&Ren, Xiaojing.(2010).Boron removal from aqueous solution by direct contact membrane distillation.JOURNAL OF HAZARDOUS MATERIALS,177(3),613-619.
MLA	Hou, Deyin,et al."Boron removal from aqueous solution by direct contact membrane distillation".JOURNAL OF HAZARDOUS MATERIALS 177.3(2010):613-619.