Treatment of dairy wastewaters by electrocoagulation using mild steel electrodes

Şengi̇l, I. Ayhan; Özacar, Mahmut

doi:10.1016/j.jhazmat.2006.04.009

Cited by 216 publications

(84 citation statements)

References 57 publications

(61 reference statements)

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“…The EC showed low removal efficiency of TS, VTS, FTS and FSS, on average 35.1; 39.3; 14.5 and 47.6% respectively. COD reduction was found to be significantly lower than previously reported by Tchamango et al (2010) and KUSHWAHA et al (2010) that used artificial wastewater l. It was obtained a removal efficiency of 57% of COD in this study, in contrast to the high value, 98%, obtained by SENGIL & OZACAR (2006) where the suspended solid content in effluent was high. In the study presented here, the effluent had a high concentration of dissolved solids, representing 80% of total solids.…”

Section: Wastewater Characterizationcontrasting

confidence: 81%

<bold>The efficiency of electrocoagulation using aluminum electrodes</bold>i<bold>n treating wastewater from a dairy industry</bold>

2015

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Section: Wastewater Characterizationcontrasting

confidence: 81%

<bold>The efficiency of electrocoagulation using aluminum electrodes</bold>i<bold>n treating wastewater from a dairy industry</bold>

2015

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“…The EC is a technology that has been effectively used to treat industrial wastewater containing different pollutants such as arsenic, phosphate, boron, dyes and viruses. Furthermore, it has been effective in breaking oil emulsions in water and treating paper mill effluent, olive mill effluent, landfill leachate and dairy effluent (Bensadok et al 2008;Irdemez et al 2006;Katal and Pahlavanzadeh 2011;Khoufi et al 2007;Li et al 2011;Azadi Aghdam et al 2015;Phalakornkule et al 2010;Sengil and Ozacar 2006;Tchamango et al 2010;Wan et al 2011;Yilmaz et al 2008;Zhu et al 2005;Amani-Ghadim et al 2013).…”

Section: Electrocoagulationmentioning

confidence: 99%

Electrocoagulation for COD and diesel removal from oily wastewater

Safari

Aghdam

Kariminia

2015

Int. J. Environ. Sci. Technol.

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This study investigated the diesel and COD removal from oily wastewater by electrocoagulation. Experiments were conducted in a 2-l reactor using aluminum and iron electrodes. Effects of different parameters including pH (3-11), time (10-60 min), voltage (4.5-10.5 V), supporting electrolyte (NaCl concentration), electrode material and initial diesel concentration (3500-11,000 mg/L) were studied in order to evaluate the efficiency of electrocoagulation. Furthermore, the consumption of energy and the amount of sludge produced by this method were evaluated. The highest removal efficiency (COD removal of 99.1 ± 0.2 % and diesel removal of 98.8 ± 0.2 %) was observed under the following conditions: pH 7, 40 min, 10.5 V, NaCl concentration of 0.5 g/ L, diesel concentration of 3500 mg/L. The consumption of energy was estimated to be 6.47 kWh/m 3 , and the amount of sludge generated was 1995 mg/L. The results demonstrated that the electrocoagulation is a feasible technique for treatment of heavily contaminated petroleum refinery wastewater.

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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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Treatment of dairy wastewaters by electrocoagulation using mild steel electrodes

Cited by 216 publications

References 57 publications

<bold>The efficiency of electrocoagulation using aluminum electrodes</bold>i<bold>n treating wastewater from a dairy industry</bold>

<bold>The efficiency of electrocoagulation using aluminum electrodes</bold>i<bold>n treating wastewater from a dairy industry</bold>

Electrocoagulation for COD and diesel removal from oily wastewater

Remediation of Feedlot Nutrients Runoff by Electrocoagulation Process

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