Physicochemical characterization and Bioremediation perspective of textile effluent, dyes and metals by indigenous Bacteria

Ali, Naeem; Hameed, Abdul; Ahmed, Safia

doi:10.1016/j.jhazmat.2008.08.006

Cited by 123 publications

(75 citation statements)

References 57 publications

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“…According to Ali et al (2009), SS are important repositories for toxic heavy metals and dyes in the receiving water bodies, and for this reason, the impact of SS on water color was also evaluated. Figure 5c shows color and SS amounts in effluent from the BAF reactor at different EBCTs.…”

Section: Effect Of Ebct On Refractory Compounds Removal In Baf Reactormentioning

confidence: 99%

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

Bae

Han

Kim

et al. 2016

Int. J. Environ. Sci. Technol.

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The upflow anaerobic sludge blanket process followed by the biological aerated filter process was employed to improve the removal of color and recalcitrant compounds from real dyeing wastewater. The highest removal efficiency for color was observed in the anaerobic process, at 8-h hydraulic retention time, seeded with the sludge granule. In the subsequent aerobic process packed with the microbe-immobilized polyethylene glycol media, the removal efficiency for chemical oxygen demand increased significantly to 75 %, regardless of the empty bed contact time. The average influent non-biodegradable soluble chemical oxygen demand was 517 mg/L, and the average concentration in effluent from the anaerobic reactor was 363 mg/L, suggesting the removal of some recalcitrant matters together with the degradable ones. The average nonbiodegradable soluble chemical oxygen demand in effluent from the aerobic reactor was 87, 93, and 118 mg/L, with the removal efficiency of 76, 74, and 67 %, at 24-, 12-, and 8-h empty bed contact time, respectively. The combined anaerobic sludge blanket and aerobic cell-entrapped process was effective to remove the refractory compounds from real dyeing wastewater as well as in reducing organic loading to meet the effluent discharge limits. This integrated process is considered an effective and economical treatment technology for dyeing wastewater.

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Section: Effect Of Ebct On Refractory Compounds Removal In Baf Reactormentioning

confidence: 99%

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

Bae

Han

Kim

et al. 2016

Int. J. Environ. Sci. Technol.

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“…Uncontrolled anthropogenic industrialization, urbanization, agriculture, release of hazardous wastes and rapid population growth are believed to be its main sources [1] [2]. A wide range of pollutants, harmful to both humans and the environment, are found in effluents from such sources [3].…”

Section: Introductionmentioning

confidence: 99%

“…One such group of pollutants are synthetic organic dyes released as untreated aqueous dyeing effluents into adjacent water bodies through dye manufacturing and processing operations by cosmetics, food, leather, paper and pulp, plastic and rubber, printing and textiles industries. The presence of dyes in aqueous dyeing effluent has significant adverse effects in the environment due to their high toxicity to humans and aquatic biota; they have excessively visible colour resistant to degradation by light, chemical action and microorganisms; and inhibit 1,2 Department of Applied Chemistry, Federal University Dutsinma, P.M.B. 5001, Dutsin-Ma, Katsina State, Nigeria.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics and Thermodynamics of Methyl Orange Uptake from Model Effluent by Watermelon Shells and Neem Leaves

2017

IJACEBS

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Abstract-The adsorption kinetics and thermodynamics of methyl orange dye removal from model dyeing effluent by cheap watermelon (Citrullus lanatus) shells (WSA) and neem (Azadirachta indica) leaves (NLA) adsorbents were investigated. Kinetic parameters of pseudo-first order (PS-1), pseudo-second order (PS-2), intraparticle diffusion (IP-D) and Elovich's (EL-V) models for the dye adsorption onto the adsorbents were determined. Linear coefficients of determination (R 2 ) for all the models were in the range 0.0411-0.9224 for WSA and 0.4241-0.9979 for NLA. The goodnessof-fit of the models for the dye uptake onto both adsorbents was in the order PS-2 > PS-1 > IP-D > EL-V with the PS-2 model having the best and EL-V model having the least fitting of the experimental data in each case. Adsorption rate constants for the models also followed similar pattern with the best rate in PS-2 model (k 2 for WSA: 17.2726 g. and α for NLA: 2.87×10 -11 g.mg -1 .min -1 ). Error analyses and χ 2 -test of the data confirmed NLA to be a better adsorbent than WSA but both adsorbents are potentially effective for the dye removal from the effluent.

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“…Textile, paper, printing, leather, food and plastic industries are major industrial wastewater sources. The presence of dyes in textile wastewater is an important environmental problem because of their high visibility, resistance and toxic impact (Ali et al, 2009). The colored dye effluents are considered to be highly toxic to the aquatic biota and can reduce photosynthetic activities in aquatic environments by preventing the penetration of light and oxygen (Crini, 2006).…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal Behaviour of Procion Mx-R Dye From SRDW by Chitosan

Gönen¹

2016

Appl Ecol Env Res

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Abstract. In this study, the application of chitosan for the removal of Procion MX-R dye from synthetic reactive dye wastewater (SRDW) was investigated under ambient conditions. The optimum conditions for the adsorption of Procion MX-R dye onto the adsorbent was found to be: pH (4.0), adsorbent dose (1.0 g), temperature of 35°C for an initial Procion MX-R dye concentration of 100 mg/L. Langmuir and Freundlich adsorption isotherm models were applied which fitted the data with R 2 value of 0.990. The adsorption of Procion MX-R on chitosan was confirmed by SEM study, as it showed the change in characterization before and after adsorption. The kinetic results showed that the rate of dye adsorption follows pseudo-second-order model for the dye concentration range studied in the present case. In addition, various thermodynamic parameters, such as standard Gibbs free energy (ΔG°), standard enthalpy (ΔH°) and standard entropy (ΔS°) have been calculated. It has been found that the chitosan/dye interaction was feasible, spontaneous and exothermic in nature. As a result, chitosan have been shown to be a very efficient and low-cost adsorbent, and a promising alternative for eliminating dyes from industrial wastewaters.

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Physicochemical characterization and Bioremediation perspective of textile effluent, dyes and metals by indigenous Bacteria

Cited by 123 publications

References 57 publications

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

Kinetics and Thermodynamics of Methyl Orange Uptake from Model Effluent by Watermelon Shells and Neem Leaves

Adsorptive Removal Behaviour of Procion Mx-R Dye From SRDW by Chitosan

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