Treatment of waters and wastewaters containing sulfur dyes: A review

Nguyen, Thai Anh; Juang, Ruey‐Shin

doi:10.1016/j.cej.2012.12.102

Cited by 238 publications

(91 citation statements)

References 62 publications

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“…Most adsorbents are easily available and inexpensive. How ever, their practical application has been limited by problems associated with their regeneration, disposal, poor mechanical stability, high sludge production and low removal effectiveness of a wide range of dyes (Crini 2006;Yang and Feng 2010a;Saratale et al 2011;Nguyen and Juang 2013). To overcome these disadvantages, which are a major challenge for dye treatment, various nano-adsorbents have been developed.…”

Section: Methods Of Treatment For Removing Dyesmentioning

confidence: 99%

Review of the use of mesoporous silicas for removing dye from textile wastewater

Salahshoor

Shahbazi

2014

European Journal of Environmental Sciences

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The textile industry is a major user of dyes and hence an important source of water pollution, which poses a threat to aquatic as well as human life. Adsorption is a widely used technique for separating and removing dye from wastewater. Recently the use of mesoporous silica (MPSs) as an adsorbent in wastewater treatment has received considerable attention. MPSs are emerging as potential adsorbents because of their surface area, tunable and uniform pore structure, high pore volume, ordered pore structure, thermal and mechanical stability, and extraordinarily wide possibilities for functionalization to increase their adsorption capacity. In this paper the ability of MPSs to absorb dyes from aqueous solutions is reviewed. This article provides information on adsorption studies carried out under different operational conditions such as contact time, solution pH, temperature, agitation speed, etc. This review also summarizes and attempts to compare the equilibrium isotherm and kinetic models, and the thermodynamic studies that report the adsorption of dyes onto MPSs. The literature reviewed, indicate that SBA-MPSs have a higher adsorption capacity than MCM-MPSs and functionalized MPSs a better adsorption capacity than MPSs. It is evident from the literature that the potential of MPS based nano-sorbents being used for removing dyes from aqueous solution is very high. However, still more research work is needed on developing cost effective and more efficient MPS based nano-sorbents for use commercially.

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Section: Methods Of Treatment For Removing Dyesmentioning

confidence: 99%

Review of the use of mesoporous silicas for removing dye from textile wastewater

Salahshoor

Shahbazi

2014

European Journal of Environmental Sciences

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“…The application of laccase in dye degradation has been widely studied by many researchers over the last few decades [Couto and Herrera, 2006;Nguyen and Juang, 2013]. In this study, the purified laccase was able to efficiently decolorize 3 chemical dyes, especially in the presence of ABTS as a mediator ( Fig.…”

Section: Discussionmentioning

confidence: 73%

Overexpression of a Laccase with Dye Decolorization Activity from Bacillus sp. Induced in Escherichia coli

Guo

Zheng²,

Jiang³

et al. 2017

Microb Physiol

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Laccases from bacteria have been widely studied in the past 2 decades due to the higher growth rate of bacteria and their excellent thermal and alkaline pH stability. In this study, a novel laccase gene was cloned from Bacillus sp., analyzed, and functionally expressed in Escherichia coli. The laccase was highly induced in the E. coli expression system with a maximum intracellular activity of 16 U mg^-1 protein. The optimal temperature and pH of the purified laccase were 40°C and 4.6, respectively, when ABTS (2,2'-azino-bis[3-ethylbenzothiazoline-6-sulfonate]) was used as the substrate. The purified laccase showed high stability in the pH range of 3.0-9.0, and retained more than 70% of its activity after 24 h of incubation at 40°C with a pH value of 9.0. Furthermore, the enzyme exhibited extremely high temperature and ion metal tolerance. The half-life of the purified laccase at 70°C was 15.9 h. The purified laccase could efficiently decolorize 3 chemical dyes, especially in the presence of ABTS as a mediator. The high production of this laccase in E. coli and exceptional characteristics of the recombinant enzyme protein make it a promising candidate for industrial applications.

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“…They are extensively used in many fields [1][2][3] as their color is very bright and have high tinting strength. In the textile industry, up to 50% of the dyes are lost after dyeing process and about 10-15% of them are discharged in the effluents [4].…”

Section: Introductionmentioning

confidence: 99%

Removal of triphenylmethane dyes by calcium carbonate–lentinan hierarchical mesoporous hybrid materials

Liu

Jiang

et al. 2015

Chemical Engineering Journal

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Treatment of waters and wastewaters containing sulfur dyes: A review

Cited by 238 publications

References 62 publications

Review of the use of mesoporous silicas for removing dye from textile wastewater

Review of the use of mesoporous silicas for removing dye from textile wastewater

Overexpression of a Laccase with Dye Decolorization Activity from <b><i>Bacillus</i></b> sp. Induced in <b><i>Escherichia coli</i></b>

Removal of triphenylmethane dyes by calcium carbonate–lentinan hierarchical mesoporous hybrid materials

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