Submerged vacuum membrane distillation crystallization (S-VMDC) with turbulent intensification for the concentration of NaCl solution

doi:10.1016/j.seppur.2018.09.072

	Submerged vacuum membrane distillation crystallization (S-VMDC) with turbulent intensification for the concentration of NaCl solution
	Zou, Tong 1,2; Kang, Guodong 1; Zhou, Meiqing 1; Li, Meng 1; Cao, Yiming 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2019-03-18
卷号	211 页码:151-161
关键词	Submerged vacuum distillation Crystallization Turbulent intensification Stirring Micro-porous aeration
ISSN号	1383-5866
DOI	10.1016/j.seppur.2018.09.072
通讯作者	Kang, Guodong(kangguod@dicp.ac.cn) ; Cao, Yiming(ymcao@dicp.ac.cn)
英文摘要	The feasibility of simultaneous pure water production and salt crystal recovery from highly concentration NaCl solution was evaluated by utilizing a submerged vacuum membrane distillation crystallization (S-VMDC) system with different turbulent intensification modes. The effect of intensification mode including stirring and aeration on membrane distillation performance and crystallization behavior was investigated systematically. An iterative method was used to evaluate the heat transfer enhancement effect. The results indicated that both stirring and aeration had positive influence on permeate flux due to the improvement of heat transfer and weakening of polarization phenomenon in boundary layer. The dominated crystallization behavior converted from surface crystallization to bulk crystallization with the help of turbulent intensification, which in turn increased the limiting concentration of the feed solution. The size and distribution of crystallized product could be regulated by selecting an optimal intensification mode. With the combined effect of stirring rate at 1350 rpm and aeration rate at 0.20 m(3)/h, 31.85% NaCl crystals with relative desirable size distribution could be recovered from bulk solution. This study provided an altemative perspective to understand the enhancement effect of turbulent intensification strategy in S-VMDC process for concentrating saturation solution in both qualitative and quantitative ways.
资助项目	Youth Innovation Promotion Association of the Chinese Academy of Sciences[2016171]
WOS关键词	MASS-TRANSFER ; SCALING MITIGATION ; HEAT ; DESALINATION ; PARAMETERS ; ENHANCEMENT ; BEHAVIOR ; SALTS ; FLUX
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000456226300018
资助机构	Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166172]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Kang, Guodong; Cao, Yiming
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zou, Tong,Kang, Guodong,Zhou, Meiqing,et al. Submerged vacuum membrane distillation crystallization (S-VMDC) with turbulent intensification for the concentration of NaCl solution[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,211:151-161.
APA	Zou, Tong,Kang, Guodong,Zhou, Meiqing,Li, Meng,&Cao, Yiming.(2019).Submerged vacuum membrane distillation crystallization (S-VMDC) with turbulent intensification for the concentration of NaCl solution.SEPARATION AND PURIFICATION TECHNOLOGY,211,151-161.
MLA	Zou, Tong,et al."Submerged vacuum membrane distillation crystallization (S-VMDC) with turbulent intensification for the concentration of NaCl solution".SEPARATION AND PURIFICATION TECHNOLOGY 211(2019):151-161.