Decolourization of Azo Dyes by a Strain of Micrococcus Isolated from a Refuse Dump Soil

Olukanni, Olumide D.; Osuntoki, Akinniyi Adediran; Gbenle, George O.

doi:10.3923/biotech.2009.442.448

Cited by 45 publications

(19 citation statements)

References 17 publications

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“…3a). Similar results were observed in Micrococcus glutamicus NCIM-2168 and Micrococcus strain R3 during the decolorization of reactive green 19A, Scarlet R (Saratale et al 2009a(Saratale et al , 2009b) and methyl red (Olukanni et al 2009). The rate of decolorization by strain SSN2 was 56 and 73 % at pH 6 and 7, respectively.…”

Section: Effect Of Physicochemical Parameters On Do-16 Decolorizationsupporting

confidence: 73%

Biodegradation of azo dye Direct Orange 16 by Micrococcus luteus strain SSN2

Singh

Chatterji

Nandini

et al. 2014

Int. J. Environ. Sci. Technol.

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In the present study, the decolorization and degradation of azo dye Direct Orange 16 (DO-16) by a potential bacterial isolate isolated from textile effluent were evaluated. Through 16S rRNA sequence matching, the potential isolate was identified as Micrococcus luteus strain SSN2. The effects of various factors (pH, temperature, salt and dye concentration) on decolorization were investigated. The strain SSN2 had the ability to decolorize DO-16 with 96 % efficiency at pH 8, 37°C and 3 % NaCl in a short time of 6 h under static conditions. DO-16 decolorization was assessed by UV-Vis spectrophotometer with gradual decrease of dye peak intensity at 430 nm (k max ). Analytical techniques (thin-layer chromatography, Fourier transform infrared spectroscopy and high-performance liquid chromatography) further confirmed that biodegradation of DO-16 was due to reduction of the azo bond. The phytotoxicity assay (with respect to seeds of Vigna mungo and Vigna radiata) demonstrated the less toxic nature of the DO-16-degraded products compared to the toxic azo dye.

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Section: Effect Of Physicochemical Parameters On Do-16 Decolorizationsupporting

confidence: 73%

Biodegradation of azo dye Direct Orange 16 by Micrococcus luteus strain SSN2

Singh

Chatterji

Nandini

et al. 2014

Int. J. Environ. Sci. Technol.

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show abstract

“…The substrate reacts with either · OH or undergoes pyrolysis. In the interface region, a similar reaction occurs but in an [107][108][109][110]. For pretreatment of raw wastewater before discharging to public capital processing factories, these processes may be satisfactory with respect to the reduction of the chemical oxygen demand, and partial discoloration.…”

Section: Sonolysis Processmentioning

confidence: 99%

Industrial Wastewater Treatment: A Challenging Task in the Industrial Waste Management

Mp¹

2017

Adv Recycling Waste Manag

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“…Hence, these dyes are used in textile, pharmaceuticals, plastics, leather, paper, mineral oils, wax industries and even in selected food items and cosmetics. In the dyeing process, *10 % of dye is lost and released in wastewater, making the waterbodies coloured and contaminated with significant amounts of residual dyes (Anjaneya et al 2013;Olukanni et al 2009;Stolz 2001). Colour is the first visible pollution in water bodies which hampers its aesthetic nature, cuts-off sunlight penetration, disturbs photosynthesis and causes chronic and acute toxicity (Aksu et al 2007;Gupta and Suhas 2009).…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Azo dyes by spent Rhizopus arrhizus biomass

Salvi

Chattopadhyay

2016

Appl Water Sci

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In the present study, spent Rhizopus arrhizus biomass was used for the removal of six azo dyes from aqueous solutions. The dye removal capacity of the biomass was evaluated by conducting batch tests as a function of contact time, biomass dosage, pH and initial dye concentrations. The pseudo-second-order kinetic model fitted well with the experimental data with correlation coefficients greater than 0.999, suggesting that chemisorptions might be the rate limiting step. The equilibrium sorption data showed good fit to the Langmuir isotherm model. Among the six dyes tested, the maximum monolayer adsorption capacity for fast red A and metanil yellow was found to be 108.8 and 128.5 mg/g, respectively. These encouraging results suggest that dead Rhizopus arrhizus biomass could be a potential biomaterial for the removal of azo dyes from aqueous dye solution.

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Decolourization of Azo Dyes by a Strain of Micrococcus Isolated from a Refuse Dump Soil

Cited by 45 publications

References 17 publications

Biodegradation of azo dye Direct Orange 16 by Micrococcus luteus strain SSN2

Biodegradation of azo dye Direct Orange 16 by Micrococcus luteus strain SSN2

Industrial Wastewater Treatment: A Challenging Task in the Industrial Waste Management

Biosorption of Azo dyes by spent Rhizopus arrhizus biomass

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