Reactive Dye House Wastewater Treatment. Use of Hybrid Technology:  Membrane, Sonication Followed by Wet Oxidation

Dhale, Atul D.; Mahajani, Vijaykumar V.

doi:10.1021/ie980615t

Cited by 34 publications

(12 citation statements)

References 12 publications

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“…1 The kinetics of BB -oxidation were measured over the temperature range of 298-313 K at pH 9.0 to establish the energy parameters for the HOCl and OCl -driven reactions. 26,27 20 …”

Section: Activation Parametersmentioning

confidence: 99%

“…An electron flow originating from the lone pair on the tertiary nitrogen toward the oxygen of the HOCl molecule, results in the addition of a hydroxyl group to the Brilliant Blue-R, intermediate, I 1 . Electrons from the p bond in the alkene then form a cyclopropane cation with the concomitant loss of the hydroxyl group resulting in I 2 .…”

Section: Reaction Schemementioning

confidence: 99%

“…1 In this communication we focus on the degradation of Brilliant Blue-R (BB -Na + ), a triphenylmethane dye. 2 It is also known by other names such as Acid Blue 83, Acid Brilliant Blue and Brilliant Indocyanine 6B.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics and mechanism of the oxidation of Coomassie Brilliant Blue-R dye by hypochlorite and role of acid therein

Nadupalli¹,

Dasireddy²,

Koorbanally³

et al. 2015

S.Afr.j.chem

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“…1 The kinetics of BB -oxidation were measured over the temperature range of 298-313 K at pH 9.0 to establish the energy parameters for the HOCl and OCl -driven reactions. 26,27 20 …”

Section: Activation Parametersmentioning

confidence: 99%

Section: Reaction Schemementioning

confidence: 99%

See 1 more Smart Citation

Kinetics and mechanism of the oxidation of Coomassie Brilliant Blue-R dye by hypochlorite and role of acid therein

Nadupalli¹,

Dasireddy²,

Koorbanally³

et al. 2015

S.Afr.j.chem

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show abstract

“…15 The feed vessel volume was about 50 dm 3 . The experimental system had two pumps: a low pressure and a high pressure pump operating in series so that the low pressure pump supplied sufficient inlet pressure for the high pressure pump.…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…The effluents from reactive dye baths are highly-coloured streams containing hydrolysed dye together with auxiliary chemicals. 3 Thus, wastewater reclamation in this industry is highly desirable because of the opportunities to reduce both the volumes of wastewater produced and the water consumed. Membrane processes can be used for the purification of these complex wastewater streams.…”

Section: Introductionmentioning

confidence: 99%

Direct filtration of Procion dye bath wastewaters by nanofiltration membranes: flux and removal characteristics

Koyuncu

2003

J of Chemical Tech & Biotech

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The treatment and reuse of industrial wastewaters by membrane processes has become more attractive in the last few years due to constraints on water usage. The aim of this study was to investigate the direct filtration of reactive dye house wastewaters by nanofiltration membranes based on permeate flux, and sodium chloride and colour removal. Experiments were performed using both synthetic and industrial dye bath wastewaters with the fluxes of the industrial dye bath wastewaters lower than those of the synthetic solutions. The effects of operating conditions such as pressure and pH were assessed. Studies with DS5 DK type (polysulfone-polyamide) membranes showed that nanofiltration membranes are suitable for direct treatment of wastewaters and the permeate quality was appropriate for reuse in the dyeing process. Pre-treatment and neutralisation were important for recovery of large amounts of salt and water from the permeate stream. Neutralisation of the solution with HCl rather than H 2 SO 4 gave a better permeate from the point of view of the reuse. The highest permeate flux and colour removal and the lowest salt removal were achieved with the HCl neutralisation.  2003 Society of Chemical IndustryKeywords: nanofiltration; neutralisation; reactive dye; membrane fouling; NaCl recovery INTRODUCTIONAs groundwater levels decrease and industrial water prices increase, there is an emphasis on identifying and investing in new water sources for future demands. Such alternative processes include desalination of brackish and sea water, and the reclamation and reuse of wastewaters. Several new unit processes for water and wastewater treatment such as membrane technology have been used in desalination and reclamation of both municipal and industrial wastewaters.

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Wastewater Treatment

Eckenfelder¹,

Staff²

2006

Kirk-Othmer Encyclopedia of Chemical Technology

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There is a scarcity of safe and good quality water at present and this problem will become more prevalent in the future. Sewage is the spent water supply of a community. Treatment of these spent waters (wastewater) is the focus of this article. Because of large equipment and land requirements, capital costs for wastewater‐treatment plants are high. A collection system that conveys both sanitary and storm flows must be designed to deal with high peak flows at a treatment plant. Wastewater treatment technologies differ from each other in terms of their principles, scope of application, speed, and economy. Waste treatments begins with minimization of wastes as a primary measures and then is followed by physical, chemical, electrical, thermal, and biological treatments. All of these options are discussed. Tertiary, or advanced, treatments convert water processed by the above technologies into good quality water that can be used for different purposes such as drinking, industrial, and medicinal uses. Alternative biological processes include lagoon and aerated lagoons, activated sludge, fixed‐film processes, rotating biological contactors, anaerobic, and aerobic treatments. Managing the removed pollutants (sludge) is also detailed. Newer technologies for wastewater treatment are addressed, eg, ultrasonic radiation, ionizing radiation, conducting polymers, use of zeolites. Storm‐water control is an important issue and EPA permitting regulations for control are given. Other disposal considerations that are not based on sewers include septic tanks, package units, and boat waste. Health and safety are also discussed.

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Reactive Dye House Wastewater Treatment. Use of Hybrid Technology: Membrane, Sonication Followed by Wet Oxidation

Cited by 34 publications

References 12 publications

Kinetics and mechanism of the oxidation of Coomassie Brilliant Blue-R dye by hypochlorite and role of acid therein

Kinetics and mechanism of the oxidation of Coomassie Brilliant Blue-R dye by hypochlorite and role of acid therein

Direct filtration of Procion dye bath wastewaters by nanofiltration membranes: flux and removal characteristics

Wastewater Treatment

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