Removal Of Heavy Metals From Industrial Wastewaters Using Local Alum And Other Conventional Coagulants - a comparative study

Ogunfowokan, A. O.; Durosinmi, L. M.; Oyekunle, J. A. O.; Ogunkunle, O. A.; Igbafe, IT

doi:10.4314/ijs.v9i2.32248

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Hence, an effluent that contains high level of Cd concentration is targeted. Ogunfowokan et al . reported that effluent from battery industry has Cd concentration of 4.01 ppm.…”

Section: Methodsmentioning

confidence: 99%

Separation of Cd(II) from its aqueous solution using environmentally benign vegetable oil as liquid membrane

Bhatluri

Manna

Saha

et al. 2013

Asia-Pacific J Chem Eng

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This work is intended for extraction and recovery of toxic heavy metal components, viz. Cadmium (Cd), from the industrial wastewater using liquid membrane (LM)-based separation technique. Exploring environmental benignity in the solvent (LM) is the main aim of this work. Vegetable oils are potential candidates toward that. Presence of carrier component in solvent often augments the solute transport mechanism. Although N,N-dimethyloctylamine (DMOA) is a very good carrier to show excellent extraction, the recovery is poor possibly because of high stability of complex between Cd(II) and DMOA in the membrane phase. The performance of LM-based separation process is affected by various physical and chemical parameters viz. pH, concentration, stirring rate, temperature, carrier concentration. An optimum operating condition has been identified that would yield the most efficient transport of solute.

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“…Hence, an effluent that contains high level of Cd concentration is targeted. Ogunfowokan et al . reported that effluent from battery industry has Cd concentration of 4.01 ppm.…”

Section: Methodsmentioning

confidence: 99%

Separation of Cd(II) from its aqueous solution using environmentally benign vegetable oil as liquid membrane

Bhatluri

Manna

Saha

et al. 2013

Asia-Pacific J Chem Eng

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“…Several treatment technologies have been developed to remove lead from water and wastewater. Common methods include coagulation (Ogunfowokan et al 2007), ion exchange, membrane separation, precipitation, electrochemical precipitation, microbiological processes (Valentina 2006), activated carbons, and biosorbents (Raziya et al 2009). Different research studies shows that one of the most effective methods for the treatment of heavy metals from water is adsorption study using low-cost adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of lead (II) from water using heartwood charcoal of Areca catechu: equilibrium and kinetics studies

Haloi

Sarma

Chakravarty³

2013

Appl Water Sci

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Present study was conducted to investigate the removal of Pb(II) from water by using heartwood charcoal of Areca catechu (HCAC). Batch experiments were conducted to determine the adsorption properties at different contact times (5-30 min), concentrations (0.1-10 mg/L), amounts of adsorbents (0.1-0.6 g), and in a range of pH 2-7. Most favorable biosorption condition was found at pH 5.0, 0.5 g biomass dosage and at 25 min equilibrium time. The experimental results were fitted to the Langmuir and Freundlich isotherm models; the Freundlich isotherm was found to well represent the measured sorption data implying HCAC has heterogeneous surface. Lagergren first-order and pseudo-second-order kinetic model were used to analyze the biosorption data; it was observed that the pseudo-second-order model best represented the relationship. Scanning electron microscopy image and energy dispersive X-ray analysis were also incorporated in support of the study. The result shows that HCAC has the potentiality to remove Pb(II) from water.

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Removal Of Heavy Metals From Industrial Wastewaters Using Local Alum And Other Conventional Coagulants - a comparative study

Cited by 2 publications

References 5 publications

Separation of Cd(II) from its aqueous solution using environmentally benign vegetable oil as liquid membrane

Separation of Cd(II) from its aqueous solution using environmentally benign vegetable oil as liquid membrane

Biosorption of lead (II) from water using heartwood charcoal of Areca catechu: equilibrium and kinetics studies

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