Dynamics of colloidal pitch adsorption at the solid–liquid interface by surface plasmon resonance

Murray, Gerard; Stack, Karen; McLean, Douglas S; Shen, Wei; Garnier, Gil

doi:10.1016/j.colsurfa.2009.03.050

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…The increase in temperature increases the proportion of soluble undissociated resin acids which has been shown to increase deposition due to decrease in resin viscosity. [38][39][40] The different kind of orientation of foulants in different conditions might also explain the observed opposite changes in contact angle values at different temperatures. Colloidal foulants have an ability to undergo molecular reorientation as the result of changes in their environment.…”

Section: Resultsmentioning

confidence: 99%

Analysis of membrane fouling by Brunauer-Emmett-Teller nitrogen adsorption/desorption technique

Virtanen

Rudolph

Lopatina

et al. 2020

Sci Rep

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Membrane fouling is the major factor limiting the wider applicability of the membrane-based technologies in water treatment and in separation and purification processes of biorefineries, pulp and paper industry, food industry and other sectors. Endeavors to prevent and minimize fouling requires a deep understanding on the fouling mechanisms and their relative effects. In this study, Brunauer-Emmett-Teller (BET) nitrogen adsorption/desorption technique was applied to get an insight into pore-level membrane fouling phenomena occurring in ultrafiltration of wood-based streams. The fouling of commercial polysulfone and polyethersulfone membranes by black liquor, thermomechanical pulping process water and pressurized hot-water extract was investigated with BET analysis, infrared spectroscopy, contact angle analysis and pure water permeability measurements. Particular emphasis was paid to the applicability of BET for membrane fouling characterization. The formation of a fouling layer was detected as an increase in cumulative pore volumes and pore areas in the meso-pores region. Pore blocking was seen as disappearance of meso-pores and micro-pores. The results indicate that the presented approach of using BET analysis combined with IR spectroscopy can provide complementary information revealing both the structure of fouling layer and the chemical nature of foulants.

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Section: Resultsmentioning

confidence: 99%

Analysis of membrane fouling by Brunauer-Emmett-Teller nitrogen adsorption/desorption technique

Virtanen

Rudolph

Lopatina

et al. 2020

Sci Rep

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“…Techniques such as photometric dispersion analysis (PDA), 9,10 impinging jet microscopy, 11 surface plasmon resonance (SPR), 12 flow cytometry 13,14 and laser diffraction, 13,15 have been used to characterize and understand the underlying processes governing wood extractives colloidal stability and, thus, the deposition of colloidal wood extractives onto surfaces. Quartz crystal microbalance with dissipation (QCM-D) is a highly sensitive surface sensing technique used extensively as a mass detector for in-situ detection and monitoring of interfacial phenomena in vacuum, ambient and aqueous environments 16,17 (for review, see Marx 18 ).…”

Section: Introductionmentioning

confidence: 99%

The study of deposition of wood extractives and model compound colloids onto chromium and cellulose surfaces using quartz crystal microbalance with dissipation (QCM-D)

Tham

Molino

Higgins

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Purification of white waters by selective flotation

Haapala

Körkkö

Kemppainen

et al. 2010

BioRes

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Removal of detrimental contaminants from paper machine circulation waters is known to benefit process runnability and paper quality. The applicability of selective flotation to remove substances of a hydrophobic nature from paper machine circulation waters was investigated in laboratory-scale experiments. The separation efficiency of ink, stickies, and wood extractives was studied by using a flotation scheme in which the froth was generated by the white water’s inherent surface active components without any chemical addition. The removal efficiency of detrimental contaminants was considered in relation to total losses of solid materials. The results showed that while not all white waters were able to produce stabile froth, those that generated froth also exhibited substantial separation of contaminants in the froth. With a moderate removal of 10% of total solids from white waters, removal of 45% of stickies, 27% of ink, and 20 to 50% of wood extractives was observed. Higher removal of contaminants resulted in solids losses at levels that are not economically feasible in paper production. The results showed that selective white water flotation can have beneficial results for papermaking processes.

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Dynamics of colloidal pitch adsorption at the solid–liquid interface by surface plasmon resonance

Cited by 3 publications

References 10 publications

Analysis of membrane fouling by Brunauer-Emmett-Teller nitrogen adsorption/desorption technique

Analysis of membrane fouling by Brunauer-Emmett-Teller nitrogen adsorption/desorption technique

The study of deposition of wood extractives and model compound colloids onto chromium and cellulose surfaces using quartz crystal microbalance with dissipation (QCM-D)

Purification of white waters by selective flotation

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