Removal of arsenic and sulphate from the copper smelting industrial effluent

Basha, C. Ahmed; Selvi, S. Josephine; Ramasamy, E. V.; Chellammal, S.

doi:10.1016/j.cej.2007.10.027

Cited by 100 publications

(35 citation statements)

References 19 publications

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“…In the past, limited studies on the use of electrocoagulation were performed on livestock wastewater including swine (Bejan et al, 2007;Cho et al, 2010;Laridi et al, 2005;Rahman and Borhan, 2014), dairy (Bensadok et al, 2011;Şengil, 2006;Tchamango et al, 2010;Yavuz et al, 2011), slaughter house wastewater (Bazrafshan et al, 2012), industrial effluents (Ali and Yaakob, 2012;Basha et al, 2008), pharmaceutical wastewater (Yi-zhong et al, 2002), agroindustry and textile dye wastewater (Merzouk et al, 2009). However, until today, electrocoagulation was not use to treat feedlot runoff.…”

Section: Introductionmentioning

confidence: 99%

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Thapa¹,

Rahman²,

Borhan³

2015

American Journal of Environmental Sciences

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Nutrient runoff from Concentrated Animal Feeding Operations (CAFOs) may cause ground and surface water pollution. Scientists and researchers are continually searching for appropriate technologies to mitigate feedlot nutrient runoff pollution. In this study, suitability of electrocoagulation treatment process was examined under laboratory conditions to mitigate nutrient pollutants from the feedlot runoff. Feedlot runoff was treated with three different type of electrodes such as aluminum (Al-Al), iron (Fe-Fe) and hybrid (Al-Fe) at different electrical voltage potentials (5, 10 and 15 Volts) for a designated time step (up to 30 min). The electrocoagulation cell consisted of two parallel rectangular plate electrodes, immersed in a beaker with 500 mL feedlot runoff and powered by a Direct Current (DC) supply. This study was conducted in batches at room temperature. Results indicated that Electrical Conductivity (EC), Total Phosphorus (TP), Total Nitrogen (TN) and Chemical Oxygen Demand (COD) concentration reduced significantly irrespective of electrode types. Overall, TP concentration reduction was higher (100%) followed by COD (50-75%) and TN (25-60%) concentration. Nutrient removal and specific electrical energy consumption increased with increasing voltage level. Aluminum electrodes were more effective than the other two electrodes for TP reduction at all applied potentials and COD reduction was better at lower applied potential. Hybrid electrodes (Al-Fe) reduced TN better than the other two electrodes.

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Section: Introductionmentioning

confidence: 99%

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Thapa¹,

Rahman²,

Borhan³

2015

American Journal of Environmental Sciences

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“…With the aim of maintaining a good quality of fresh water resources, this wastewater must be treated so that the water can be reverted to the ecosystems. As(III) and As(V) ions are the most common arsenic species in nature and create the extreme environmental issue [5]. On the basis of investigation of the detrimental effect of arsenic on human body, in drinking water, the maximum contaminant level (MCL) of arsenic has been revised to 10 from 50 μg/L by the World Health Organization (WHO) in 1993 [6] and the European Commission in 2003 [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Elimination of As(III) and As(V) from Wastewater Using Bacterial Biofilm Supported on Sawdust/MnFe2O4 Composite

Podder

Majumder

2016

Water Conserv Sci Eng

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The goal of the present research was to study the ability of Corynebacterium glutamicum MTCC 2745 immobilized on Sawdust/MnFe 2 O 4 composite to treat arsenic bearing wastewater by simultaneous biosorption and bioaccumulation (SBB) system at laboratory scale and also to investigate the influences of initial pH, biosorbent dose, contact time, temperature and initial arsenic concentration on biosorption/bioaccumulation of both As(III) and As(V). The surface texture of the immobilized bacterial cells was investigated through SEM-EDX analysis. The presence of functional groups on the surface of immobilized bacterial cells that may interact with the metal ion was confirmed by FT-IR. The pattern of biosorption/bioaccumulation fitted well with Vieth and Sladek isotherm model for As(III) and Brouers-Sotolongo and Fritz-Schlunder-V isotherm models for As(V). The maximum adsorption capacity estimated using Langmuir model was 1672.32214 mg/g for As(III) and 1861.71453 mg/g for As(V) at 30°C temperature and 240 min contact time. The results showed that As(III) and As(V) removal was strongly pH-dependent with an optimum pH value of 7.0. The effect of co-existing ions, such as Cu 2+ , Zn 2+ , Bi 3+ , Cd 2+ , Fe 3+ , Pb 2+ , Co 2+ , Ni 2+ , Cr 6+ and SO 4 2− , at different concentrations were examined. Desorption study exhibited that over 81.34 and 88.727 % could be desorbed from immobilized bacterial cells with 0.05 M NaOH solution.

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“…The technical feasibility for the treatment of various industrial effluents such as textile wastewater [19], electroplating waste water [20], oil mill wastewater [21], heavy metal laden wastewater [22], nitrite effluent [23], defluoridation [24], arsenic removal [25], landfill leachate [26], restaurant wastewater [27], laundry wastewater [28], surfactants [29], agro industry wastewater [30], etc. has been studied.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Degradation of Remazol Black B Dye Effluent

Soloman

Basha²,

Velan

et al. 2009

CLEAN Soil Air Water

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This study focused on the electrochemical degradation of hydrolyzed Remazol Black B (CI Reactive Black 5), a common diazo reactive dye, in aqueous solution. In the presence of various auxiliary dye chemicals, a typical Remazol Black simulated exhausted dyebath liquor was treated electrochemically in various basic electrochemical reactor configurations such as batch, batch recirculation and single pass systems. The effect of current density, supporting electrolyte concentration, electrolysis duration, specific electrode surface and fluid flow rate on pollutant removal and energy consumption performance of the systems was critically evaluated. Batch studies show the following operating parameters, current density: 2.5 A/dm 2 , electrolysis duration: 6 h, and supporting electrolyte concentration: 3 g/L, were optimal for good overall performance of the system. Color removal was complete by 3 h of treatment for all combinations of parameters studied. The pollutant removal performance of the batch recirculation system was found to have improved considerably by increasing the flow rate. Performance of the batch recirculation system was comparatively better than the other rector configurations studied, with respect to capacity utilization and energy consumption.

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Removal of arsenic and sulphate from the copper smelting industrial effluent

Cited by 100 publications

References 19 publications

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

Investigation on Elimination of As(III) and As(V) from Wastewater Using Bacterial Biofilm Supported on Sawdust/MnFe2O4 Composite

Electrochemical Degradation of Remazol Black B Dye Effluent

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