1995
DOI: 10.1002/j.1551-8833.1995.tb06332.x
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Membrane air‐stripping: effects of pretreatment

Abstract: MEMBRANE PROCESSESs a result of the Safe Drinking Water Act and its 1986 amendments, the number of regulated volatile organic chemicals (VOCs) has increased substantially. 1 The discovery of drinking water supply sources contaminated by VOCs is also increasing. These factors have led to the development of alternative treatment methods for control of VOCs.Packed-tower aeration (PTA) is currently the most common treatment strategy for VOCs in drinking water and is considered by the US Environmental Protection Ag… Show more

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Cited by 30 publications
(14 citation statements)
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“…Hollow fiber membranes have been used previously in a number of gas transfer applications including: air stripping of VOCs from contaminated water (Castro and Zander, 1995;Semmens et al, 1989), recovery of cyanide from wastewater (Shen et al, 1997), bubble-free aeration of bioreactors Semmens, 1992, 1996;Coté et al, 1988Coté et al, , 1989, and biological treatment of VOCs in wastewaters (Aziz et al, 1996;Freitas dos Santos and Livingston, 1995a;Pavasant et al, 1996). Several authors have also investigated the use of HFMBs for treatment of gas phase VOCs (Ergas and McGrath, 1997;Hartmans et al, 1992;Parvatiyar et al, 1996a,b;Reij et al, 1995Reij et al, , 1997.…”
Section: Introductionmentioning
confidence: 97%
“…Hollow fiber membranes have been used previously in a number of gas transfer applications including: air stripping of VOCs from contaminated water (Castro and Zander, 1995;Semmens et al, 1989), recovery of cyanide from wastewater (Shen et al, 1997), bubble-free aeration of bioreactors Semmens, 1992, 1996;Coté et al, 1988Coté et al, , 1989, and biological treatment of VOCs in wastewaters (Aziz et al, 1996;Freitas dos Santos and Livingston, 1995a;Pavasant et al, 1996). Several authors have also investigated the use of HFMBs for treatment of gas phase VOCs (Ergas and McGrath, 1997;Hartmans et al, 1992;Parvatiyar et al, 1996a,b;Reij et al, 1995Reij et al, , 1997.…”
Section: Introductionmentioning
confidence: 97%
“…However, polymer membranes have fouling problems [6,7] and will also degrade when exposed to extreme acidic, alkaline [8], or oxidising environments [9]. Apart from these, the lifespan of the polymer membranes will also be shortened when used in a harsher environment with more abrasive particles due to their low abrasion-resistant ability [10,11].…”
Section: Introductionmentioning
confidence: 98%
“…One of the major challenges associated with the operation of membrane filtration plants is an increase in the operational costs as a result of the decrease in the specific permeate flux due to membrane fouling caused by the deposition of contaminants such as natural organic matter (NOM) [3,4]. Commercial polymer filtration membranes also degrade when exposed to extreme acidic or alkaline environments [5], or extreme oxidising conditions created by the presence of chlorine or ozone [6].…”
Section: Introductionmentioning
confidence: 99%
“…Ozonation has been successfully used at full scale and can be combined with other advanced oxidation processes such as photocatalysis for the degradation of organic substances [19][20][21]. Several studies have investigated the combination of ozonation and membrane processes using polymeric membranes [12], but the poor stability of polymeric membranes when exposed to ozone [6] has made this process unviable. To realise the benefit of combined oxidation processes incorporating membranes and to overcome issues of membrane degradation, some researchers have investigated the combination of ozonation and ceramic membranes for water or wastewater treatment [12,13,16].…”
Section: Introductionmentioning
confidence: 99%