Removal of arsenic by iron and aluminium electrochemically assisted coagulation

Lacasa, Engracia; Cañizares, Pablo; Sáez, Cristina; Fernández, Francisco J.; Rodrigo, Manuel A.

doi:10.1016/j.seppur.2011.03.005

Cited by 72 publications

(35 citation statements)

References 17 publications

(18 reference statements)

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“…Song et al (2006) demonstrated arsenic removal from mine water by using Fe 3þ ion via coagulation/filtration process. Lacasa et al (2011) described superior iron-based electrocoagulation over aluminum and iron for arsenic elimination. Andrianisa et al (2008) presented bio-oxidation and coagulation for removal of arsenic via ferric ion.…”

Section: Introductionmentioning

confidence: 99%

Design of Gravel‐Sand Filter for Arsenic Removal: A Case Study of Muzaffargarh District in Pakistan

Abbas

Majeed

Ali

et al. 2018

Water Environment Research

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Arsenic decontamination of drinking water has grabbed significant attention due to arsenic's serious effects on health. A novel gravel-sand filter (GSF) holding zero-valent iron plates was designed and constructed in Muzaffargarh district (Pakistan) for arsenic removal from drinking water with lower iron concentration (0.3 ppm). The GSF efficiently removed arsenic up to 99.99% with long-term stability. The GSF provides 800 liters of arsenic-free drinking water in 39 hours with a rate of 2.5 L/h. A tentative mechanism for arsenic removal is evaluated and described on the basis of oxidation-coagulationadsorption processes. Chemical composition of underground water is also analyzed and discussed. This GSF design will open a new avenue for arsenic removal and can be extended to other parts of the world. Water Environ. Res., 90, 2106Res., 90, (2018.

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Section: Introductionmentioning

confidence: 99%

Design of Gravel‐Sand Filter for Arsenic Removal: A Case Study of Muzaffargarh District in Pakistan

Abbas

Majeed

Ali

et al. 2018

Water Environment Research

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“…It was reported that electrocoagulation process has been widely applied to treat wastewater such as cutting oil emulsion wastewater [4] and textile wastewater [5]. In addition, researchers claimed that electrocoagulation process also successfully removed heavy metals from wastewater such as mercury (III) [6], phosphate [7,8], arsenic [9], fluoride [10] and antimony [11]. Electrocoagulation has advantages of minimum chemical addition and low maintenance.…”

Section: Introductionmentioning

confidence: 99%

Potential of Copper Electrodes in Electrocoagulation Process for Glyphosate Herbicide Removal

2017

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Abstract. Herbicide has been widely used since it was first marketed. Consumption of water contains glyphosate herbicide can bring adverse effects to human health. This study was intended to evaluate the performance of electrocoagulation process using copper electrodes for glyphosate removal in aqueous solution. Synthetic glyphosate powder has been diluted in deionized water. An electrocoagulation tank of 500 mL with two copper plates electrodes, same in dimensions were setup. The effects of continuous variables of initial glyphosate concentration, electrocoagulation time and current density, were discussed in detail. Production of copper cations showed an ability to neutralize negatively charged particles, then, encouraged to bind together to form aggregates of flocs composed of a combination of glyphosate and copper hydroxide. This study revealed that electrocoagulation process using copper electrodes is reliable by indicating 46.69% glyphosate removal. Finally, it can be concluded that electrocoagulation process using copper electrodes is efficient for glyphosate removal from aqueous environments.

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“…Therefore, treated drinking waters should not be exceeding to sulfate and chloride concentration of 250 mg/L according to water quality standards for human consumption . The research interest for the arsenic removal from drinking waters with alternative treatment processes has nowadays intensified . The most promising process for removal of arsenic from drinking waters is electrocoagulation (EC) due to high removal efficiency that are capable of removing arsenic to trace levels, simple in operation, compact treatment facility, feasible for small scale requirements, cost‐effective, reduced amount of sludge, and no need to handle chemicals.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, an appropriate selection of the electrode pair is important. Many metal electrodes such as iron, aluminum, copper, and titanium have been used to remove arsenic from waters using the EC in the literature . The most widely used electrode materials for removal of arsenic in these studies are aluminum and iron, which present the highest arsenic removal efficiencies up to 93–99%.…”

Section: Introductionmentioning

confidence: 99%

Removal of arsenic from drinking water by batch and continuous electrocoagulation processes using hybrid Al‐Fe plate electrodes

Kobya

Akyol

Demirbaş

et al. 2013

Env Prog and Sustain Energy

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Removals of arsenic from drinking water by electrocoagulation (EC) process using six different combinations of hybrid electrodes (Al-Fe), and Al-Al or Fe-Fe electrodes as all anodes and cathodes in a batch mode were evaluated. The removal process with monopolar series mode at optimum operating conditions (2.50 A/m 2 , 150 mg/L, and pH 7.0) indicated that Fe-Al-Al-Fe (anode-cathode-anode-cathode) hybrid plate electrode pairs were the most efficient choice in terms of arsenic removal efficiency (96% in 1 min) and operating cost (0.00202 e/m 3 ). The arsenic removal from drinking water by continuous EC (CEC) process using Fe-AlAl-Fe hybrid plate electrode pairs was also studied with respect to flow rates and initial arsenic concentrations. The effluent arsenic concentration of 10 mg/L in the CEC process was achieved at 3 min for 0.

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Removal of arsenic by iron and aluminium electrochemically assisted coagulation

Cited by 72 publications

References 17 publications

Design of Gravel‐Sand Filter for Arsenic Removal: A Case Study of Muzaffargarh District in Pakistan

Design of Gravel‐Sand Filter for Arsenic Removal: A Case Study of Muzaffargarh District in Pakistan

Potential of Copper Electrodes in Electrocoagulation Process for Glyphosate Herbicide Removal

Removal of arsenic from drinking water by batch and continuous electrocoagulation processes using hybrid Al‐Fe plate electrodes

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