Integrating a membrane and a fluidized pellet reactor for removing hardness: effects of NOM and phosphate

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Title:	Integrating a membrane and a fluidized pellet reactor for removing hardness: effects of NOM and phosphate
Authors:	李奇旺;Li, Chi-wang;Liao, Jung-chih;Lin, Yi-chun
Contributors:	淡江大學水資源及環境工程學系
Keywords:	Membrane;Hardness;Natural organic matter;Phosphate;Softening
Date:	2005-05-01
Issue Date:	2010-03-26 16:38:52 (UTC+8)
Publisher:	Elsevier
Abstract:	A novel treatment process combining a membrane with outside-in flow configuration and a fluidized pellet rector for removing hardness was studied. The effects of influent water quality, e.g., concentrations of natural organic matter (NOM) and phosphate along with the hydrophobicity of NOM, on the hardness removal efficiency of the novel process were investigated. The hardness removal efficiency decreases with increasing NOM concentration. However, the NOM removal efficiency is independent of NOM concentration and is related to the hydrophobicity of NOM samples. Raw water containing phosphate has adverse impact on the hardness removal efficiency, which decreases from 85% for treating water containing no phosphate to only 38% and 14% for water containing 0.33 mg/L and 1.63 mg/L of phosphate, respectively.
Relation:	Desalination 175(3), pp.279-288
DOI:	10.1016/j.desal.2004.11.005
Appears in Collections:	[Graduate Institute & Department of Water Resources and Environmental Engineering] Journal Article

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