Assessment on the decolourization of textile dye (Reactive Yellow) using Pseudomonas sp. immobilized on fly ash: Response surface methodology optimization and toxicity evaluation

Roy, Uma; Sengupta, Shubhalakshmi; Banerjee, Priya; Das, Papita; Bhowal, Avijit; Datta, Siddhartha

doi:10.1016/j.jenvman.2018.06.026

Cited by 71 publications

(25 citation statements)

References 44 publications

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“…From Figure a, e, and f, it is seen that the adsorption percentages of MG and MO dyes are the highest at adsorbent mass. As the adsorbent mass raised, the adsorption percentages of MG and MO dyes also elevated due to the better availability of Mn‐doped CuO‐NPs‐AC surface area, which provided a large number of adsorption sites accessible for MG and MO molecules …”

Section: Resultsmentioning

confidence: 99%

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Sharifpour

Dil

Asfaram

et al. 2019

Applied Organom Chemis

100

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In the present work, Mn‐doped CuO‐NPs‐AC was prepared by a simple method, characterized using various techniques such as FESEM, EDX, XRD, PSD, and pHpzc and finally used for the adsorption of malachite green (MG) and methyl orange (MO) in a number of single and binary solutions. A series of adsorption experiments were conducted to investigate and optimize the influence of various factors (such as different pH, concentration of MG and MO, adsorbent mass, and sonication time) on the simultaneous adsorption of MG and MO using response surface methodology. Under optimal conditions of pH 10, adsorbent dose of 0.02 g, MG concentration of 30 mg L−1, MO concentration of 30 mg L−1, and sonication time of 4.5 min at room temperature, the maximum predicted adsorption was observed to be 100.0%, for both MG and MO, showing that there is a favorable harmony between the experimental data and model predictions. The adsorption isotherm of MO and MG by Mn‐doped CuO‐NPs‐AC could be well clarified by the Langmuir model with maximum adsorption capacity of 320.69 mg g−1 and 290.11 mg g−1 in the single solution and 233.02 mg g−1 and 205.53 mg g−1 in the binary solution by 0.005 g of adsorbent mass for MG and MO, respectively. Kinetic studies also revealed that both MG and MO adsorption were better defined by the pseudo‐second order model for both solutions. In addition, the thermodynamic constant studies disclosed that the adsorption of MG and MO was likely to be influenced by a physisorption mechanism. Eventually, the reusability of the Mn‐doped CuO‐NPs‐AC after six times showed a reduction in the adsorption percentage of MG and MO.

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Section: Resultsmentioning

confidence: 99%

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Sharifpour

Dil

Asfaram

et al. 2019

Applied Organom Chemis

100

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“…The principal genera of Pseudomonadaceae was Pseudomonas 1.7%, a microorganism with the ability to adapt and colonize several ecological environments including water, sewage, soil, plants, animals, and humans [29]. Their powerful metabolism facilitates their frequent use in bioremediation projects as it is well known that they can degrade phenols, hydrocarbons, pesticides, heavy metals and dyes [30][31][32]. At P1 the relative abundance of Pseudomonas was less than 1 (0.7%) however from P7 onwards their relative abundance begins to increase, and at P17 their relative abundance was 7%.…”

Section: Taxonomic Assignment Of Metagenomic Data Along Four Sites In the Apatlaco Rivermentioning

confidence: 99%

Integrative study of microbial community dynamics and water quality along The Apatlaco River

Bretón-Deval

Sánchez-Flores

Juárez

et al. 2019

Environmental Pollution

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The aim of this study is to analyze the water quality parameters and bacterial diversity and thereby understand the effect of water quality on the microbial population structure in the river. The following parameters: total coliforms, chemical oxygen demand, harness, ammonium, nitrite, nitrate, total Kjeldahl nitrogen, dissolved oxygen, total phosphorus, total dissolved solids, and temperature were analyzing along 17 sampling points in the river. The worst levels of pollution were 510 mg/L chemical oxygen demand, 7 mg/L nitrite, 45 mg/L nitrate, 2 mg/L dissolved oxygen, and 756 mg/L of total dissolved solids.Whole metagenome shotgun sequencing was performed at 4 key points along the river (P1,P7,P10 and P17), the first point had clean water and the other points were polluted, as a result of this pollution, the structure of microbial communities along the river have changed. Proteobacteria and Bacteroidetes were the most representative phyla with a relative abundance of 57 and 43% respectively for P1, 82 and 15% for P7, 69 and 27% for P10 and 87 and 10% for the last point P17. P1 is rich in microorganism such as Limnohabitans a planktonic bacterium very common in freshwater ecosystems. However, in P7, P10 and P17 are rich in opportunistic pathogens such as Acinetobacter Arcobacter and Myroides that endangers the health of around 1.6 million people which live around the area.These results elucidate the influence of the pollution on the microbial community and the likely effects on the health of the people around..

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“…The combination of sorption and biodegradation methods may increase the efficiency of degradation of selected dyes as it was previously reported by Roy et al, who immobilized bacteria from the genus of Pseudomonas onto fly ash. Using this system, it was possible to degrade over 98% of Reactive Yellow 145 dye from aqueous solution [18]. Wangpradit also used a bimodal degradation mechanism to remove Reactive Blue 19, 160 and 198 dyes from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Degradation of Dye Wastewaters Using Binary or Ternary Oxide Systems with Immobilized Laccase

et al. 2018

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In recent years, groundwater contamination caused by dyes has become an important problem. They enter into wastewater as a result of the textile, automotive, or cosmetics industries. For this reason, new methods are being sought, which would aid at the removal of dye impurities with high efficiency and also would be relatively cheap. In the presented study synthesized TiO2-ZrO2 (with TiO2:ZrO2 molar ratio of 8:2) and TiO2-ZrO2-SiO2 (with TiO2:ZrO2:SiO2 molar ratio of 8:1:1) oxide materials were used as supports for enzyme immobilization. Effective synthesis of the carriers was confirmed by results of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), low-temperature nitrogen sorption and Fourier transform infrared spectroscopy (FTIR). The materials achieve high immobilization efficiency of the laccases from Trametes versicolor (83% and 96% for TiO2-ZrO2-laccase and TiO2-ZrO2-SiO2-laccase, respectively). The effect of selected dye concentrations, pH, temperature, and reusability were also tested. The obtained results showed that after removal of textile dyes, such as Alizarin Red S (ARS), Remazol Brilliant Blue R (RBBR), and Reactive Black 5 (RB5), under optimal process conditions, which were pH 5 and 25 °C, from dye solution of 5 mg/L degradation efficiency reached 100%, 91%, and 77%, respectively, suggesting synergistic mechanism of degradation by simultaneous sorption and catalytic action. Finally, reduction of chemical oxygen demand (COD) of the solution after treatment indicated lower mixture toxicity and effective dye degradation.

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Assessment on the decolourization of textile dye (Reactive Yellow) using Pseudomonas sp. immobilized on fly ash: Response surface methodology optimization and toxicity evaluation

Cited by 71 publications

References 44 publications

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Integrative study of microbial community dynamics and water quality along The Apatlaco River

Synergistic Degradation of Dye Wastewaters Using Binary or Ternary Oxide Systems with Immobilized Laccase

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