DOI: 10.1016/j.watres.2017.12.002
Scopus记录号: 2-s2.0-85038028319
论文题名: Comparison of colloidal silica involved fouling behavior in three membrane distillation configurations using PTFE membrane
作者: Qin W. ; Xie Z. ; Ng D. ; Ye Y. ; Ji X. ; Gray S. ; Zhang J.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 343
结束页码: 352
语种: 英语
英文关键词: Colloidal silica
; MD configuration
; Membrane distillation
; Membrane fouling
Scopus关键词: Calcium carbonate
; Carbon dioxide
; Carbonation
; Distillation
; Membrane fouling
; Precipitation (chemical)
; Silica
; Calcium bicarbonate
; Calcium carbonate fouling
; Carbonate precipitation
; Colloidal silica
; Direct contact membrane distillation
; Membrane distillation
; Sweeping gas membrane distillation
; Vacuum membrane distillation
; Membranes
; alginic acid
; bicarbonate
; calcium bicarbonate
; calcium carbonate
; carbon dioxide
; humic acid
; politef
; silicon dioxide
; unclassified drug
; glucuronic acid
; hexuronic acid
; silicon dioxide
; bicarbonate
; calcium carbonate
; carbon dioxide
; dissolved organic matter
; distillation
; fouling
; humic acid
; membrane
; silica
; air
; Article
; biofouling
; direct contact membrane distillation
; distillation
; gas
; precipitation
; priority journal
; scanning electron microscopy
; sweeping gas membrane distillation
; vacuum membrane distillation
; artificial membrane
; chemistry
; comparative study
; devices
; distillation
; humic substance
; procedures
; Alginates
; Bicarbonates
; Distillation
; Glucuronic Acid
; Hexuronic Acids
; Humic Substances
; Membranes, Artificial
; Polytetrafluoroethylene
; Silicon Dioxide
英文摘要: Colloidal silica involved fouling behaviors in direct contact membrane distillation (DCMD), vacuum membrane distillation (VMD) and sweeping gas membrane distillation (SGMD) were studied. Three foulants were used in the experiments, including colloidal silica as representative of particulate foulants, calcium bicarbonate as dissolved inorganic foulant, and NOM (humic acid + alginate + BSA) as the dissolved organic foulant. The three types of fouants were combined to produce four different feed waters: silica alone; silica + calcium bicarbonate; silica + NOM; and silica + calcium bicarbonate + NOM. With 25% feed recovery, it was found that VMD showed the worst performance for most of the foulant combinations due to turbulence dead zones caused by the membrane deformation that increased foulant deposition. For the silica + calcium bicarbonate + NOM feed DCMD had the greatest fouling rate, although DCMD also had the highest flux of all configurations. SGMD showed the best fouling resistance of all configurations, although it was inclined to calcium carbonate fouling because carbon dioxide was removed in the permeate leading to calcium carbonate precipitation and could be alleviated by using air as sweeping gas. For feeds containing high-concentration calcium bicarbonate or carbonate foulants, VMD should be avoided to lower the formation of carbonate precipitants on the membrane surface if scale inhibitors are not used. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113045
Appears in Collections: 气候减缓与适应
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作者单位: CSIRO Manufacturing, Private Bag 10, Clayton South MDCVic 3169, Australia; Institute for Sustainability and Innovation, Victoria University, P.O. Box 14428, Melbourne, Vic 8001, Australia; Institute of Marine Geology and Resource, Ocean College, Zhejiang University, Zhoushan, Zhejiang 316021, China
Recommended Citation:
Qin W.,Xie Z.,Ng D.,et al. Comparison of colloidal silica involved fouling behavior in three membrane distillation configurations using PTFE membrane[J]. Water Research,2018-01-01,130