The Effect of Carbonate Scaling and Humic Acid Fouling in Membrane Distillation

摘要：

This study aims at investigating the effect of carbonate scaling and humic acid fouling when treating synthetic seawater by Direct Contact Membrane Distillation (DCMD) and using Submerged Ultrafiltration (SUF) as the pretreatment to remove the organic matter. CaCO3 nucleation kinetics was investigated from induction time measurements by dynamic light scattering (DLS). DCMD tests without pre-treatment, carried out on a semi-pilot plant under a temperature gradient of 20℃ (inlet feed temperature: 40℃), showed a progressive deterioration of the system performance, and the initial distillate flux (2.05±0.05 L/m2h) was reduced by 45％ after 35 h of uninterrupted operation. A maximum value of 63％ in TOC rejection was achieved after pretreatment of Submerged Ultrafiltration system.

关键词： Membrane distillation Fouling Submerged Ultrafiltration

作者: Xiaosheng Ji Efrem Curcio Gianluca Di Profio Enrica Fontananova Enrico Drioli

作者单位: Department of Chemical Engineering and Materials, University of Calabria,Via P. Bucci CUBO 44A, 8703 Department of Chemical Engineering and Materials, University of Calabria,Via P. Bucci CUBO 44A, 8703

会议类型: 国际会议

会议名称: 2010 Asia-Pacific Conference on Desalination and Water Reclamation(2010 亚太脱盐大会)

会议地点: 青岛

会议语种:英文

页码: 378-382

在线出版日期: 2010-06-22（万方平台首次上网日期，不代表论文的发表时间）