Removal of Fe(II) from tap water by electrocoagulation technique

Ghosh, Debranjan; Solanki, Hitesh; Purkait, Mihir Kumar

doi:10.1016/j.jhazmat.2007.11.042

Cited by 208 publications

(84 citation statements)

References 33 publications

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“…5, inset). Ghosh et al [47] also calculated the operating cost in pollutant removal through EC and they proposed almost the same cost of present investigation.…”

Section: Sludge Generation and Operational Costsupporting

confidence: 56%

Excessive Turbidity Removal from Textile Effluents Using Electrocoagulation Technique

Islam

Rahman

et al. 2011

J. Sci. Res.

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Textile industries are one of the largest and vital industrial sectors of Bangladesh with regard to earn foreign exchange and labor employment, providing 4.5 million jobs of which 80% are women and contributes 13% to GDP [1]. This industry involves processing or converting raw material into finished cloth materials employing various processes, operations and consumes large quantities of water and produces extremely polluting waste effluents mostly by dyes and chemicals [2]. These dyes and chemicals, originating from the various steps of production in textile industry, in water often causes it AbstractThe work was conducted for improving textile effluent quality via turbidity removal by electrocoagulation (EC) using aluminum sacrificial electrode. Effluents were treated at 30 minutes and 30 volts (30min-30V) and 60 minutes and 40 volts (60min-40V) condition in a 1000 ml reactor cell with anode distance of 4 cm. Prior to EC experiment, physico-chemical parameters of effluent were measured and turbidity level was found eight times higher than the Department of Environment (DoE) standard. Turbidity removal ranged from 53 to 96.2% and 58 to 97.5% for condition one and two, respectively. Dissolved oxygen (DO) increased satisfactorily for both conditions. Total operational cost ranged from 62.50 to 70.41 taka/m 3 at 30min-30V and 159.57 to 187.7 taka/m 3 at 60min-40V. Moreover, sludge formation ranged from 6.73×10 -4 to 8.41×10 -4 kg in first condition and 1.21×10 -3 to 1.5431×10 -3 kg in second one. So, EC treatment was very effective and capable of elevating quality of the textile wastewater effluent in terms of turbidity to discharge into inland surface water. During EC operation it was also possible to lessen the total cost in maximum removal by changing the operating condition and 30min-30V was enough to get environmental friendly solution. Results will encourage the industry-owner to treat polluted effluents by EC.

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“…5, inset). Ghosh et al [47] also calculated the operating cost in pollutant removal through EC and they proposed almost the same cost of present investigation.…”

Section: Sludge Generation and Operational Costsupporting

confidence: 56%

Excessive Turbidity Removal from Textile Effluents Using Electrocoagulation Technique

Islam

Rahman

et al. 2011

J. Sci. Res.

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“…This boosts the Cr 3+ removal due to sweep coagulation at higher solids loading [15]. More bubbles are generated at higher current and this improves the mixing and the removal [16]. Effect of initial Cr 3+ concentration: A range of initial concentrations, from 1000 to 3000mg/L, were treated using Fe electrodes, applied current density of 9.34 mA/cm 2 and pH value of 3.4.…”

Section: Results and Discussion Effect Of Current Density And Operatmentioning

confidence: 99%

Removal of Cr 3+ by electrocoagulation from simulated wastewater

et al. 2014

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Trivalent chromium (Cr 3+) removal from aqueous solution by electrocoagulation using iron electrodes material was investigated in this paper. Effects of current density, initial concentration of Cr 3+ , operating time, pH, electrode distance, and operating cost have been investigated. At higher current density and solution pH, remarkable removal of Cr 3+ was observed. Experiments have been show that the maximum removal percentage of the Cr 3+ 99.89% was at initial concentration 1000 mg/L, current density 9.34 mA/cm 2 and reaction time 1 hours. Energy consumption was calculated for Cr 3+ removal at different time. The method is observed to be very effective in the removal Cr 3+ ion from aqueous solution. Electrocoagulation process need simple equipment, designable any size, use any chemical substances and low operating cost.

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“…where Q is the flow rate (liter/min) and V is Volume of water (liter) The electrical energy consumption (EEC, kWh/m 3 ) has been calculated with the equation (6) = 60 (6) where U is the applied voltage (V), t is the treatment time (min), and V is the volume of the treated water (m 3 ). Operating cost (OC, THB 2 /m 3 ) have been calculated with the equation (7) OC = a x EEC + b x EMC (7) where a and b are the current market price of electricity (THB/kWh) and electrode materials (THB/kg), respectively.…”

Section: Principle Of Electrocoagulationmentioning

confidence: 99%

“…The tap water and drinking water is removed turbidity by electrocoagulation (Malini, 2012). The removal of metal [5] such as iron [6], cadmium [7], lead, chromium is applied with electrocoagulation [8]. Nevertheless, this method still use energy supply for generation of DC power supply to the electrode such aluminium, iron or copper to generate the electrochemistry, electrocoagulation, electroflotation, precipitation or sedimentation.…”

Section: Introductionmentioning

confidence: 99%

Water Purification by Solar Powered Electrocoagulation System

Patcharaprakiti

2017

IJEE

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This paper demonstrates technique of water purification using electro-coagulation method. This system is composed of DC electric source 200 V 30 A connect to the anode and cathode terminals. The DC power supply can be received from utility or solar energy. The sample of raw water from reservoir is used to conduct experimental reaction with electrocoagulation system in order to improve water quality. The water purification experimental was implemented by batch processing with varying electrolysis time. The parameter of electro-coagulation and water quality parameters are collected such as electric voltage, electric current, water temperature, pH, dissolved oxygen (DO), total dissolved solid (TDS) and electro-conductivity. The result found that the water quality has improved with the standard of domestic water supply and also drinking water standard.

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Removal of Fe(II) from tap water by electrocoagulation technique

Cited by 208 publications

References 33 publications

Excessive Turbidity Removal from Textile Effluents Using Electrocoagulation Technique

Excessive Turbidity Removal from Textile Effluents Using Electrocoagulation Technique

Removal of Cr 3+ by electrocoagulation from simulated wastewater

Water Purification by Solar Powered Electrocoagulation System

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