Optimization of Environmental Parameters on Microbial Degradation of Reactive Black Dye

Shah, Maulin P.; Pate, Kavita A

doi:10.4172/2155-6199.1000183

Cited by 32 publications

(12 citation statements)

References 42 publications

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“…The dye effluents are high in colour, pH, suspended solids (SS), chemical oxygen demand (COD), biochemical oxygen demand (BOD) (Yaseen and Scholz 2016), metals (Sharma et al 2007;Sekomo et al 2012), temperature (Dos Santos et al 2007;Shah et al 2013) and salts. Therefore, during the treatment processes, it is important to monitor and compare these parameters with the standard concentrations before discharging the corresponding effluent to the receiving water body.…”

Section: Typical Characteristics Of Textile Effluentsmentioning

confidence: 99%

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Yaseen

Scholz

2018

Int. J. Environ. Sci. Technol.

1,314

416

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Textile industries are responsible for one of the major environmental pollution problems in the world, because they release undesirable dye effluents. Textile wastewater contains dyes mixed with various contaminants at a variety of ranges. Therefore, environmental legislation commonly obligates textile factories to treat these effluents before discharge into the receiving watercourses. The treatment efficiency of any pilot-scale study can be examined by feeding the system either with real textile effluents or with artificial wastewater having characteristics, which match typical textile factory discharges. This paper presents a critical review of the currently available literature regarding typical and real characteristics of the textile effluents, and also constituents including chemicals used for preparing simulated textile wastewater containing dye, as well as the treatments applied for treating the prepared effluents. This review collects the scattered information relating to artificial textile wastewater constituents and organises it to help researchers who are required to prepare synthetic wastewater. These ingredients are also evaluated based on the typical characteristics of textile wastewater, and special constituents to simulate these characteristics are recommended. The processes carried out during textile manufacturing and the chemicals corresponding to each process are also discussed.

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Section: Typical Characteristics Of Textile Effluentsmentioning

confidence: 99%

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Yaseen

Scholz

2018

Int. J. Environ. Sci. Technol.

1,314

416

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“…The main absorption bands in collagen samples are those from amide A (3400-3440 cm À1 ), amide I (C]O stretching, 1656 cm À1 ), amide II (N-H stretching, 1592 cm À1 ) and amide III (C-N stretching and N-H stretching, 1145-1300 cm À1 ). 43 As shown on Fig. Additional peaks at 1450 cm À1 , 1315 cm À1 and 1240 cm À1 are associated with C-H bending modes C(CH 2 ) 2 torsion and CN stretching/ NH deformation, respectively.…”

Section: Resultsmentioning

confidence: 88%

Dye–collagen interactions. Mechanism, kinetic and thermodynamic analysis

et al. 2015

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A large family of azo dyes have been developed and used in the textile industry, including for leather tainting, and are therefore expected to exhibit strong interactions with collagen-based materials. Here we investigate the mechanisms of adsorption of the Remazol black B dye on type I collagen hydrogel.Higher and stronger retention of the dye is achieved in alkaline conditions, correlated with enhanced thermal and mechanical stability of the hydrogel. The formation of a covalent bond between the dye and the protein network via a Michael reaction is suggested and supported by the detailed analysis of the kinetics and thermodynamics of the sorption reaction. Type I collagen hydrogels combine low cost, fast sorption, high loading and strong retention capacity together with low storage volume, making them promising materials for dye remediation. Dye-modified hydrogels may also find applications in the biomedical field. Fig. 4 FTIR spectra of collagen hydrogel, Remazol black and dyed hydrogel in the 4000 and 600 cm À1 (upper figure) and higher resolution in the 900 and 1600 cm À1 (lower) range. This journal isFig. 6 Photograph of (a) collagen hydrogel and (b) dyed collagen; (c) rheological properties of collagen (red lines) and dyed collagen (black lines) hydrogels with the frequency as the variable. Deformation is fixed at 0.1%. This journal isFig. 8 Decoloration kinetics adjusted with the: (a) pseudo first order, (b) pseudo second order, (c) Elovich and (d) modified Freundlich models for RB adsorption onto collagen hydrogels.This journal is Fig. 9 Adsorption isotherms of RB onto collagen at different pHs. The fitting curves were obtained using (a) Langmuir, (b) Freundlich, (c) Dubinin-Radushkevich and (d) Temkin equations.This journal is

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“…However, further rise in temperature from 37˚C to onward had negative effect on decolorization of Reactive Brilliant Blue. Decrease in decolorization at higher temperature may be due to the thermal deactivation of the enzyme responsible for decolorization (Shah et al, 2013). It is very likely that all selected yeast strains were mesophilic yeasts because they all showed better decolorization in temperature range of 25 to 37˚C.…”

Section: Discussionmentioning

confidence: 99%

“…High pH level of textile effluents is one of problems in their biological treatment. Therefore, tolerance to high PH is important to make this technology valuable (Shah et al, 2013). Another limiting factor for microbial activities and anthraquinone dye decolorization is the PH of medium.…”

Section: Discussionmentioning

confidence: 99%

Optimization of environmental parameters on the decolorization of Reactive Brilliant Blue dye by yeast isolates from textile effluent

Sanaa

Hoda

2015

Journal of Scientific Research in Science

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The present study was conducted to investigate the decolorization and degradation of Reactive Brilliant Blue dye using yeasts isolated from the effluent treatment of the textile industries and the identified yeast strains under optimal conditions using the standard methods. Among twenty-four yeast strains, only five yeasts have the ability to decolorize the dye (2.8%). Three yeast strains; Rhodotorula glutinis, Candida utilis(1) and Candida sphaerica as well as the local two yeast isolates which were identified as Rhodotorula rubra and Cryptococcus albidus showing high decolorization rate, they were used for the decolorization of Reactive Brilliant Blue dye in a medium containing glucose and yeast extract as a best carbon and nitrogen sources, the pH of medium varied among the yeasts, C. utilis(1), R. rubra and C. albidus was 4, while C. sphaerica and R. glutinis was 6 and5.5, respectively. All yeast strains were incubated for 18 h at 25˚C except C. utilis(1) at 37˚C. C. utilis(1), R. glutinis and C. sphaerica showed high decolorization rate under static aerobic conditions. While R. rubra and C. albidus showed decolorization under static anaerobic conditions. According to the potentiality of yeast strains; C. sphaerica could achieved a removal ratio of 68.83%, while C. albidus 68.40%, R. rubra 67.75%, R. glutinis 66.88% and C. utilis(1) 63.85% of Reactive Brilliant Blue dye in a concentration of 10 mg/L. The highest biodegradation of the dye by the five yeast strains was confirmed by using plain distilled water as a decolorization medium. In conclusion, yeast strains could be used for the biodegradation of dye-polluted waters including rate of degradation of anthraquinone dye.

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Optimization of Environmental Parameters on Microbial Degradation of Reactive Black Dye

Cited by 32 publications

References 42 publications

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review

Dye–collagen interactions. Mechanism, kinetic and thermodynamic analysis

Optimization of environmental parameters on the decolorization of Reactive Brilliant Blue dye by yeast isolates from textile effluent

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