Electrocoagulation treatment of rice grain based distillery effluent using copper electrode

Prajapati, Abhinesh Kumar; Chaudhari, Parmesh Kumar; Pal, Dharm; Chandrakar, Anil Kumar; Choudhary, Rumi

doi:10.1016/j.jwpe.2016.03.008

Cited by 63 publications

(16 citation statements)

References 27 publications

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“…From Figure 5a,b, it seems that the incineration of these materials may be carried out within the temperature range of 200 C-600 C and 550 C-700 C for scum and sludge, respectively. The ash content in scum and sludge are found as 40% and 52%, respectively [17,29]. From Figure 5a,b, it also seems that the calorific value of sludge is lower than the scum, which is also supported by the low carbon and high ash in sludge with respect to scum as evident from EDAX analysis.…”

Section: Sludge and Scum Analysismentioning

confidence: 62%

Treatment of biodigester effluent through EC followed by MFC: Pollutants removal and energy perspective

Shankar

Varma

Mondal

et al. 2019

Env Prog and Sustain Energy

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The present work deals with the treatment of bio digester effluent (BDE) using electrocoagulation (EC) followed by continuous membrane less microbial fuel cell (CML‐MFC). BDE with high organic load and low biodegradability index (BI) is first treated with EC process, which removes organic load and improves the BI of treated BDE. Further the EC treated BDE with relatively low organic load 1000 mg/L and considerable BI (~0.42) is used as a substrate solution for the CML‐MFC process. It is noted that the BDE with initial organic load of 2500 mg/L can be successfully treated using only EC process, whereas, only CML‐MFC operation can successfully teat EC treated BDE with low organic load (1000 mg/L). However, in combined study of EC followed by CML‐MFC, the BDE with initial organic load of 7450 mg/L can be successfully treated to achieve effluent composition below permissible limit as per Central Pollution Control Board (CPCB) norm. It is also computed that under the experimental conditions, during the EC process, approximately 2.466 and 0.537 kJ/g of energy can be generated from sludge and scum, respectively, whereas, approximately 48 mV voltage and 0.02 mA current can be generated from the CML‐MFC process. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13139, 2019

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Section: Sludge and Scum Analysismentioning

confidence: 62%

Treatment of biodigester effluent through EC followed by MFC: Pollutants removal and energy perspective

Shankar

Varma

Mondal

et al. 2019

Env Prog and Sustain Energy

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“…In water these ions immediately react and form metal hydroxides. The metal hydroxides act as coagulant agents in the aqueous solution by adsorping the colloidal pollutant and further separating from the solution by settling or floatation. , The prevailing chemical reactions for copper electrodes are listed below: , The mechanisms of oxidation and reduction occur simultaneously during electrocoagulation. When a DC is applied to emulsion, Cu 2+ and OH – ions are generated, respectively, by the electrode.…”

Section: Results and Discussionmentioning

confidence: 99%

“…When a DC is applied to emulsion, Cu 2+ and OH – ions are generated, respectively, by the electrode. Reactions and react to form various monomeric and polymeric species, which transform finally into Cu(OH) 2 according to complex precipitation kinetics . These coagulants, Cu(OH) 2, accelerate the breakup of the emulsion as a result of the neutralization of the surface charge of the surfactant molecules.…”

Section: Results and Discussionmentioning

confidence: 99%

Demulsification of Light Malaysian Crude Oil Emulsions Using an Electric Field Method

Mohammadian

Ariffin

Azdarpour

et al. 2018

Ind. Eng. Chem. Res.

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The creation of oil emulsions due to mechanical strength and natural surfactants during production is undesirable. The challenges associated with transporting and refining oil have led researchers to probe into practical demulsification methods. An in-depth understanding of crude oil rheology and operating conditions to treat emulsion is necessary. The main objective of the current study was to investigate the rheological behavior and demulsification rate of crude oil emulsions. The rheological behavior of a crude oil emulsion was studied by manipulating its temperature (30 °C–90 °C), shear rate (0.1–1000 s–1), and water volume fraction (20%, 30%, and 40%). For emulsions of various water content, the rheological studies followed the non-Newtonian shear thinning behavior, which was explained effectively by the Herschel–Bulkley model. Experimental results also indicated that the measured viscosity of emulsion decreased significantly with temperature, while increasing water volume fraction increased viscosity. The rates of demulsification of water in crude oil emulsion in direct current fields were investigated under various conditions by using an electrochemical cell. The separation rate of water increased along with the applied field, water content, and salt concentration. Results of this study indicated that emulsion separation was governed by the magnitude of the applied electric field as well as the type of electrode.

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“…A few works also reported on the use of copper electrodes. 9,21 In the present studies, MS was used as electrode. In the process, less dissolution of iron into the effluent was found as compared to aluminum and copper.…”

Section: Electrocoagulation Mechanismmentioning

confidence: 99%

Treatment of sugar industry effluent using an electrocoagulation process: Process optimization using the response surface methodology

Gondudey

Chaudhari

Dharmadhikari

et al. 2020

JSCS

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Wastewater of sugar industries has high pollutant load due to presence of organic and inorganic materials. Discharge of untreated or partially treated wastewater has negative effect on environment and on life of human, plants and animals. In our present studies, it is attempted to treat sugar industry effluent (SIE) by electrocoagulation process (ECP) using mild steel (MS) as electrode material. For this purpose, three process parameters namely pH (5-9), current density (j = 34.7-104.46 A m-2) and treatment time (tR = 20-100 min) were selected to optimize process using response surface methodology (RSM). The optimum conditions were pH 6.66, j = 105.16 A m-2 and tR = 100 min. The maximum chemical oxygen demand (COD) removal of 75.98% was achieved from the optimum conditions. The predicted model by RSM showed R2 = 0.9515. After treatment of effluent, the sludge content in treated water was separated effectively by filtration and settling.

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Electrocoagulation treatment of rice grain based distillery effluent using copper electrode

Cited by 63 publications

References 27 publications

Treatment of biodigester effluent through EC followed by MFC: Pollutants removal and energy perspective

Treatment of biodigester effluent through EC followed by MFC: Pollutants removal and energy perspective

Demulsification of Light Malaysian Crude Oil Emulsions Using an Electric Field Method

Treatment of sugar industry effluent using an electrocoagulation process: Process optimization using the response surface methodology

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