Removal of textile dye reactive green-19 using bacterial consortium: Process optimization using response surface methodology and kinetics study

Das, Amlan; Mishra, Susmita

doi:10.1016/j.jece.2016.10.005

Cited by 112 publications

(47 citation statements)

References 42 publications

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“…Continuous disposal of such toxic dyestuff into the water bodies increases the organic load of natural reservoirs, which in turn leads to the negative impact on aquatic or terrestrial environments and its ecological functions (Saratale et al, 2015). Thus, it becomes essential to eliminate these compounds before it gets released into the environment (Das and Mishra, 2017).…”

Section: Introductionmentioning

confidence: 99%

Degradation and Toxicity Analysis of a Reactive Textile Diazo Dye-Direct Red 81 by Newly Isolated Bacillus sp. DMS2

Amin¹,

Rastogi²,

Chaubey³

et al. 2020

Front. Microbiol.

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An efficient diazo dye degrading bacterial strain, Bacillus sp. DMS2 was isolated from a long-term textile dye polluted environment. The strain was assessed for its innate ability to completely degrade and detoxify Direct Red 81 (DR81) textile dye under microaerophilic conditions. The degradation ability of strain showed significant results on optimizing the nutritional and environmental parameters. Based on statistical models, maximum efficiency of decolorization achieved within 24 h for 100 mg/l of dye supplemented with glucose (0.02%), MgSO 4 (0.002%) and urea (0.5%) at 30 • C and pH (7.0). Moreover, a significant catabolic induction of a laccase and azoreductase suggested its vital role in degrading DR81 into three distinct metabolites (intermediates) as by-products. Further, toxicity analysis of intermediates were performed using seeds of common edible plants, aquatic plant (phytotoxicity) and the nematode model (animal toxicity), which confirmed the non-toxic nature of intermediates. Thus, the inclusive study of DMS2 showed promising efficiency in bioremediation approach for treating industrial effluents.

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Section: Introductionmentioning

confidence: 99%

Degradation and Toxicity Analysis of a Reactive Textile Diazo Dye-Direct Red 81 by Newly Isolated Bacillus sp. DMS2

Amin¹,

Rastogi²,

Chaubey³

et al. 2020

Front. Microbiol.

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“…Recently, studies focused on microbial biomass as treatment by microorganisms is eco-friendly and cost effective [4,7]. Several bacteria [2,[8][9][10][11], yeast [12][13][14][15][16], algae [1,4,[17][18][19] and fungi [6,[20][21][22][23][24][25][26][27][28][29] have been used for dye removal from waste water and reported as potential bioadsorbents/biodegraders for toxic compounds. A summary of the most recent studies on reactive dye removal that performed with various microorganisms was presented in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Bioremoval of reactive dye Remazol Navy by kefir grains

Erdoğdular

Apar

2019

Appl Biol Chem

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Potential use of living and non-living kefir grains (small, gelatinous white/yellow irregularly shaped masses consist of live bacteria and yeasts) on removal of reactive dye Remazol Navy RGB from aqueous solutions were investigated. Experiments were carried out under different process conditions in order to optimize and model the bioremoval processes. At all conditions the living kefir grains exhibited higher dye removal efficiencies than the non-living grains. In 180 min, 96.3% and 79.4% dye removal was obtained with living and non-leaving kefir grains respectively, at pH 2, 25 °C for 100 mg/L initial dye concentration by using 2.4 g/L kefir grain. Maximum adsorption capacities by living and inactivated kefir grains were obtained at 400 mg/L initial dye concentration as 134.59 and 56.92 mg/g respectively. Consecutive batch studies show that the living kefir grains could be reused over at least 5 cycles with high dye removal efficiency without any nutrition supplement. The biosorption kinetics both for living and non-living kefir grains were best described with pseudo-first-order kinetic model. On the other hand the biosorption equilibrium for living and non-living kefir grains were better defined by Temkin and Langmuir isotherm models respectively. Results suggest that the kefir grains could be used efficiently, eco-friendly and economically for removal of dyes from aqueous solutions.

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“…The advancements in the industrialization of dye production have dealt colossal damage to the aquatic environment in the form of toxic dye efflu-ent. Textile industries present the maximum percentage of the synthetic dyes (around 56 %) of world's total annual production [1]. Due to continuous discharge of textile dyes into the water sources, different toxic and carcinogenic chemical compounds have been introduced into the aquatic life, as well as into humans and animals.…”

Section: Introductionmentioning

confidence: 99%

“…Due to continuous discharge of textile dyes into the water sources, different toxic and carcinogenic chemical compounds have been introduced into the aquatic life, as well as into humans and animals. It has been estimated that among the various classes of dyes, azo and diazo dyes, with their complicated aromatic structures, are extensively used in industrial dyeing and printing processes [1].…”

Section: Introductionmentioning

confidence: 99%

Comparison of advanced oxidation processes for degrading Ponceau S dye. Application of photo-Fenton process.

Laftani

Boussaoud

Chatib

et al. 2019

Maced. J. Chem. Chem. Eng.

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The major part of this work is devoted to the examination of the degradation of Ponceau S (PS) in aqueous medium by using the photo-Fenton process. The influence of pH of the medium, oxidant dose (H2O2), ferrous ion dose and the presence of inorganic ions such as bicarbonate, sulphate and nitrate on degradation kinetics was also analyzed. Before that, the efficiency of this process was compared to three other advanced oxidation processes (AOPs) such as H2O2/UV, Fenton (Fe2+/H2O2), and solar photo-Fenton. It was found that all dye degradation kinetics obeyed a pseudo-first order, and their apparent rate constants were represented by the ratios: kapp (H2O2/UV/Fe2+) =0.295 kapp (sunlight/Fe2+/H2O2) =0.141 kapp (Fe2+/H2O2) = 0.111 kapp (H2O2/UV) =0.031.Under reference conditions (0.06 mM of PS in ultrapure water), photo-Fenton oxidation using 0.06 mM of Fe2+, 1mM of H2O2 and the pH optimal value of 3 yielded more than 94.3% in only10 min of dye degradation with an apparent rate constant of 0.2951 min-1. Elsewhere, the addition of the salts in aqueous medium has, in general, an inhibition effect on the decolorization kinetics due to controlled ionic interactions of metals with inorganic ions. The most adverse effect on PS disappearance rate was observed when bicarbonate ions were present in the treated medium.

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Removal of textile dye reactive green-19 using bacterial consortium: Process optimization using response surface methodology and kinetics study

Cited by 112 publications

References 42 publications

Degradation and Toxicity Analysis of a Reactive Textile Diazo Dye-Direct Red 81 by Newly Isolated Bacillus sp. DMS2

Degradation and Toxicity Analysis of a Reactive Textile Diazo Dye-Direct Red 81 by Newly Isolated Bacillus sp. DMS2

Bioremoval of reactive dye Remazol Navy by kefir grains

Comparison of advanced oxidation processes for degrading Ponceau S dye. Application of photo-Fenton process.

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