Micellar-enhanced ultrafiltration for removal of reactive dyes from an aqueous solution

Ahmad, A.L.; Puasa, Siti Wahidah; Zulkali, M. M. D.

doi:10.1016/j.desal.2005.07.022

Cited by 102 publications

(47 citation statements)

References 13 publications

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“…Many researchers have studied different techniques for the removal of dyes from wastewater, including nanofiltration [5,6], coagulation/flocculation [7,8], micellar enhanced ultrafiltration [9], oxidation [10][11][12], ozonolysis [13][14][15], the use of activated carbon [16,17] and biological treatment techniques [18,19]. However, these conventional wastewater treatment techniques are either expensive or a lot of wastes are generated during the purification process, which limits their application.…”

Section: Introductionmentioning

confidence: 99%

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

et al. 2014

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The removal of toxic organic pollutants from wastewater by graphene-based photocatalysts has dominated recent scientific research. As a result numerous nanomaterials have been studied and used for water remediation. ZnS has been widely studied due to its versatile application in photocatalysis. This study presents the synthesis of Co-doped graphene-ZnS nanocomposite by co-precipitation method. The materials were characterized by X-ray diffraction , Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and Brunauer-EmmettTeller surface area analysis. UV/Vis diffuse reflectance spectroscopy was employed to estimate band gap energies. Laboratory experiments with indigo carmine (IC) dye was chosen as a model for organic pollutants and was used to evaluate the photocatalytic performance of Co-doped ZnS-rGO nanocomposite under visible light. The Co-doped ZnS-rGO showed significant visible light induced photocatalytic activity towards the degradation of IC. Highest photocatalytic activity was observed for the 0.3 % Co-doped ZnS-rGO sample (k = 3.1 9 10 -2 min -1 ).

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Section: Introductionmentioning

confidence: 99%

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

et al. 2014

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“…Ahmad et al [16] had done study on the removal efficiency of MEUF towards C.I. Reactive Orange 16 and C.I.…”

Section: Introductionmentioning

confidence: 99%

Reactive dyes decolourization from an aqueous solution by combined coagulation/micellar-enhanced ultrafiltration process

Ahmad

Puasa

2007

Chemical Engineering Journal

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145

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“…), L/ h./ unit of membrane surface area, Q p is permeate flow per h; A is active surface area of membrane (m 2 ) respectively. (Ahmad et al, 2006).…”

Section: Sample Analysismentioning

confidence: 99%

Nanofiltration process on dye removal from simulated textile wastewater

Hassani

Mirzayee

Nasseri

et al. 2008

Int. J. Environ. Sci. Technol.

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Dyestuffs removal from industrial wastewater requires special advanced technologies, since dyes are usually difficult to remove by biological methods. In this study nanofiltration process was used for removal of different dyestuffs from solutions. The rate of dye removal by spiral wound nanofiltration membrane in film thin composite MWCO=90 Dalton, was evaluated for four classes of dyes acidic, disperse, reactive and direct in red and blue dyes medium. Dye absorbance was measured by spectrophotometric method (2120 Standard Method 1998). Effects of feed concentration, pressure and total dissolved solids concentration were also studied. Results showed that increasing dye concentration lead to higher color removal up to 98 % and at different pressures for acidic and reactive blue were up to 99.7 %. Different types of dyes had no effect on dye removal and permeate flux. During 2 h.of the operation time, permeate flux decline was increased. Permeate fluxes for different types of red dyes were from 16.6 to 12.6 (L/m 2 /h.) and for blue dyes were from 16.6 to 10.45 (L/m 2 /h.). Presence of sodium chloride in dye solutions increased dye rejections nearby 100 %. Chemical oxygen demand removal efficiencies for reactive blue, disperse blue, direct and disperse red dyes were also approximately 100 %.

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Micellar-enhanced ultrafiltration for removal of reactive dyes from an aqueous solution

Cited by 102 publications

References 13 publications

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material

Reactive dyes decolourization from an aqueous solution by combined coagulation/micellar-enhanced ultrafiltration process

Nanofiltration process on dye removal from simulated textile wastewater

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