Practical Experience of Backwashing with SWRO Permeate For UF Fouling Control

摘要：

Effectiveness of reverse osmosis (SWRO) permeate backwash on fouling control of seawater ultrafiltration was investigated at a pilot scale.A standard membrane module was used in this pilot to represent full scale desalination plants.Performance of this pilot was also compared with a desalination plant of Evides Company,because the same seawater was used for both cases.Results of the pilot show a good reproducibility.When the UF permeate was used for backwash,the frequency of chemically enhanced backwash (CEB) was around 24 hours in low fouling period.Under the same filtration settings,the Evides desalination plant showed a similar frequency of CEB conduction.Furthermore,results of the pilot show that SWRO permeate backwash could reduce the CEB frequency to 1/2 of UF permeate backwash at the same operational conditions in low fouling period.

关键词： ultrafiltration backwash SWRO permeate

作者: Sheng Li S.G.J. Heijman J.Q.J.C. Verberk G.L. Amy J.C. van Dijk

作者单位: Delft University of Technology Delft University of Technology; Water Desalination and Reuse Research Center

会议类型: 国内会议

会议名称: 2011全国非常规水源利用技术研讨会

会议地点: 青岛

会议语种:英文

页码: 268-273

在线出版日期: 2011-06-01（万方平台首次上网日期，不代表论文的发表时间）