Influence of characterised natural organic material on activated carbon adsorption: II. Effect on pore volume distribution and adsorption of 2-methylisoborneol

Newcombe, Gayle; Drikas, Mary; Hayes, Rob

doi:10.1016/s0043-1354(96)00325-9

Cited by 255 publications

(111 citation statements)

References 20 publications

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“…The addition of 1.67 g l -1 PAC significantly reduced the high MW organics in the reactor, however, the further addition of another 1.67 g l -1 PAC did not reduce the amount of remaining high MW compounds any further. This might be because the remaining non-adsorptive substances have a low affinity for PAC, or that the carbon surface has been modified due to the adsorption of organics [20,21].…”

Section: Smp Production During Start-upmentioning

confidence: 99%

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Akram

Stuckey

2008

Process Biochemistry

150

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Section: Smp Production During Start-upmentioning

confidence: 99%

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Akram

Stuckey

2008

Process Biochemistry

150

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“…The high anity of non-adsorptive humic substances for UF membrane as in the case of PAC-pretreatment as well as the potentially modi®ed carbon surface characteristics resulting from adsorption of organic matter (Newcombe et al, 1997b) may be partially responsible for the observed phenomenon. Further, DOC removal data in Fig.…”

Section: Eect Of Humic Substance Hydrophobicitymentioning

confidence: 99%

Effects of humic substance characteristics on UF performance

2000

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AbstractÐThe role of humic substances in general and hydrophobicity of humic substances in particular on membrane permeate¯ux is unclear. The main goal of the present study is to evaluate the eect of fractionated humic substances on ultra®ltration (UF) performance. A commercial humic solution was subjected to a hydrophobic resin for fractionation of the hydrophobic and hydrophilic fraction. These fractions were further fractionated into dierent molecular wight groups, using gel ®ltration chromatography. The hydrophobic fraction accounts for 85% organic carbon recovered and has a signi®cantly high THM (trihalomethane) formation potential, or 190 mg/mg C. The hydrophilic fraction exhibits the worst¯ux decline despite little solute rejection. The results of molecular weight fractionation of both hydrophobic and hydrophilic fractions further indicate that those molecules with the largest molecular weight (6.5±22.6 kDa) exhibit the worst¯ux decline. The UF system evaluated is unable to remove a signi®cant portion of THM precursors, resulting in potentially high THMs in the permeate. The use of powdered activated carbon (PAC) for the pretreatment of hydrophobic/ hydrophilic humic substances or in an integrated PAC-UF system exhibits an enhanced membrane fouling. #

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“…Ozone oxidation and biodegradation by biological activated carbon have been considered to be two effective methods for mitigation of the odor problem (Newcombe et al, 1997;Geering, 1999;Cook et al, 2001;von Gunten, 2003a) The combination of ozonation and biological activated carbon (BAC) (O 3 -BAC), which integrates the oxidation effect of O 3 and the biological degradation effect of BAC, have often been adopted as an advanced water treatment approach because of its capability in comprehensively improving drinking water quality (Newcombe and Cook, 2002). Though the O 3 -BAC process has been proved to be effective in the removal of odors (Cook et al, 2001;Newcombe and Cook, 2002), most of the previous studies have mainly been limited to the earthy odorants including 2-MIB and geosmin (Srinivasan and Sorial, 2011;Antonopoulou et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Guo

Yang

et al. 2016

Water Research

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a b s t r a c tOzonation is known to be very effective in the removal of odorants from source water. However, it is not known if ozonation is effective in the removal of multiple odorants causing different types of odors. In this study, the removal performance for odors and odorants were evaluated in a Water Treatment Plant (WTP), which was equipped with coagulation, sedimentation, ozonation, biological activated carbon (BAC) filtration, sand filtration, and chlorination in succession and located in the downstream of the Huangpu (HP) River, over the period from April, 2014 to April, 2015. Flavor profile analysis (FPA) results showed that the source water was constantly associated with septic and musty odors. Geosmin and 2-MIB, with an average OAV of 4.54 and 1.38, respectively, were the major odorants for musty odor, while bis(2-chloroisopropyl) ether, DEDS and DMDS with an average OAV of 2.35, 1.65 and 0.78, respectively, might be responsible for the septic odor. While the musty odor could be removed effectively through the combination of ozonation and BAC, the septic odor and associated odorants required further treatment with sand filtration and chlorination for complete removal. It is clear that the advanced treatment process was effective for the treatment of source water containing complicated odorants. It should be noted that the sedimentation process needs careful management because release of odorants may occur during the treatment. The result of this study will be helpful for the mitigation of odors in WTP using source waters suffering from complicated odor problems.

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Influence of characterised natural organic material on activated carbon adsorption: II. Effect on pore volume distribution and adsorption of 2-methylisoborneol

Cited by 255 publications

References 20 publications

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Flux and performance improvement in a submerged anaerobic membrane bioreactor (SAMBR) using powdered activated carbon (PAC)

Effects of humic substance characteristics on UF performance

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

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