期刊
DESALINATION
卷 145, 期 1-3, 页码 237-245出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0011-9164(02)00418-6
关键词
ultrafiltration; coagulation; in-line coagulation; precoating; dissolved organic matters
Coagulation with only rapid mixing in a separate tank (ordinary coagulation) and coagulation with no mixing tank (in-line coagulation) were applied prior to ultrafiltration with an inside-out type hollow fiber membrane. In result the filterability at the former conditions was superior in both the crossflow and dead-end modes. Thus the relative importance of the removal rate of DOMs was investigated. Precoating the surface of the membranes with metal hydroxide particles of coagulants was also examined. This method of utilizing coagulants resulted in a smaller consumption of coagulant in the coagulation-UF system.
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