A parametric comparative study of electrocoagulation and coagulation using ultrafine quartz suspensions

Kılıç, Mehtap Gülsün; Hoşten, Çetin; Demırcı, Şahınde

doi:10.1016/j.jhazmat.2009.05.133

Cited by 21 publications

(3 citation statements)

References 21 publications

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“…2). It was also observed during the experiments that long operating times, high voltage values, and bubbling of hydrogen gas at the cathode removed the turbidity and COD from the electrolyte (POME), as previously reported by Kilic et al (2009). Kilic and Hosten (2010) also reported the removal of 90% turbidity while conducting EC of aqueous suspensions of kaolinite powders with a concentration of 0.2 g L −1 using electrical input of 40 V, 20 min operating time, and NaCl.…”

Section: Removal Of Chemical Oxygen Demand and Turbidity Of Palm Oil supporting

confidence: 80%

Electrocoagulation of Palm Oil Mill Effluent as Wastewater Treatment and Hydrogen Production Using Electrode Aluminum

et al. 2011

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Palm oil mill effluent (POME) is highly polluting wastewater generated from the palm oil milling process. Palm oil mill effluent was used as an electrolyte without any additive or pretreatment to perform electrocoagulation (EC) using electricity (direct current) ranging from 2 to 4 volts in the presence of aluminum electrodes with a reactor volume of 20 L. The production of hydrogen gas, removal of chemical oxygen demand (COD), and turbidity as a result of electrocoagulation of POME were determined. The results show that EC can reduce the COD and turbidity of POME by 57 and 62%, respectively, in addition to the 42% hydrogen production. Hydrogen production was also helpful to remove the lighter suspended solids toward the surface. The production of Al(OH)XHO at the aluminum electrode (anode) was responsible for the flocculation-coagulation process of suspended solids followed by sedimentation under gravity. The production of hydrogen gas from POME during EC was also compared with hydrogen gas production by electrolysis of tap water at pH 4 and tap water without pH adjustment under the same conditions. The main advantage of this study is to produce hydrogen gas while treating POME with EC to reduce COD and turbidity effectively.

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Section: Removal Of Chemical Oxygen Demand and Turbidity Of Palm Oil supporting

confidence: 80%

Electrocoagulation of Palm Oil Mill Effluent as Wastewater Treatment and Hydrogen Production Using Electrode Aluminum

et al. 2011

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“…1 and 2) and procedures were given in a previous study [9]. Experimental variables of electrocoagulation and conventional coagulation studies are presented in Table 2.…”

Section: Methodsmentioning

confidence: 99%

A comparative study of electrocoagulation and coagulation of aqueous suspensions of kaolinite powders

Kılıç

Hoşten

2010

Journal of Hazardous Materials

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“…EC studies presented in this category of waters can be simplified to have been conducted using small-scale laboratory Al, Fe, or SS batch reactors and synthetic model water or wastewater with only one particular pollutant removed (see Table 7). Therefore, not all of the studies [13,[122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137] are discussed in the following text (although the optimum conditions found are presented in Table 7), but only those which differ notably from this in some way. Table 7 presents a summary of recent applications of EC in the treatment of waters containing heavy metals, cyanide, and other elements and ions.…”

Section: Model Water and Wastewater Containing Heavy Metals Nutrientmentioning

confidence: 99%

Recent Applications of Electrocoagulation in Treatment of Water and Wastewater—A Review

Kuokkanen¹,

Kuokkanen²,

Rämö³

et al. 2013

GSC

188

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During the last two decades, and particularly during the last few years, the environmental sector has shown a largely growing interest in the treatment of different types of water and wastewater by electrocoagulation (EC). The aim of this work was to review studies, conducted mainly during 2008-2011, on the wide and versatile range of feasible EC applications employed in the purification of different types of water and wastewater. The EC applications discussed here were divided into 7 following categories: tannery, textile and colored wastewater; pulp and paper industry wastewater; oily wastewater; food industry wastewater; other types of industrial wastewater; surface water as well as model water and wastewater containing heavy metals, nutrients, cyanide and other elements and ions. In addition, this paper presents an overview of the optimum process conditions (treatment times, current densities, and initial pH) and removal efficiencies (mostly high) achieved for the EC applications discussed. In the vast majority of the studies discussed in this review, the aforementioned values were found to be in the range of 5-60 min (typically less than 30 min), 10-150 A/m² and near neutral pH, respectively. Both operating costs and electrical energy consumption values were found to vary greatly depending on the type of solution being treated, being between 0.004 -6.74 €/m³ and 0.002-58.0 kWh/m³, but in general they were rather low (typically around 0.1-1.0 €/m³ and 0.4-4.0 kWh/m³).

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A parametric comparative study of electrocoagulation and coagulation using ultrafine quartz suspensions

Cited by 21 publications

References 21 publications

Electrocoagulation of Palm Oil Mill Effluent as Wastewater Treatment and Hydrogen Production Using Electrode Aluminum

Electrocoagulation of Palm Oil Mill Effluent as Wastewater Treatment and Hydrogen Production Using Electrode Aluminum

A comparative study of electrocoagulation and coagulation of aqueous suspensions of kaolinite powders

Recent Applications of Electrocoagulation in Treatment of Water and Wastewater—A Review

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