Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method.

Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Research Abstract Details 

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Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Abstract Text:

Rajesh S Bejankiwar,K S Lokesh,T P Halappa Gowda,

The treatment of biologically treated wastewater of coffee-curing industry by the electrochemical oxidation using steel anode was investigated. Bench-scale experiments were conducted for activated sludge process on raw wastewater and the treated effluents were further treated by electrochemical oxidation method for its colour and organic content removal. The efficiency of the process was determined in terms of removal percentage of COD, BOD and colour during the course of reaction. Several operating parameters like time, pH and current density were examined to ascertain their effects on the treatment efficiency. Steel anode was found to be effective for the COD and colour removal with anode efficiency of 0.118 kgCOD x h(-1) x A(-1) x m(-2) and energy consumption 20.61 kWh x kg(-1) of COD at pH 9. The decrease in pH from 9 to 3 found to increase the anode efficiency from 0.118 kgCOD x h(-1) x A(-1) x m(-2) to 0.144 kWh x kg(-1) of COD while decrease the energy consumption from 20.61 kWh x kg(-1) of COD to 12.86 kWh x kg(-1) of COD. The pH of 5 was considered an ideal from the present treatment process as it avoids the addition of chemicals for neutralization of treated effluents and also economical with respect to energy consumption. An empirical relation developed for relationship between applied current density and COD removal efficiency showed strong predictive capability with coefficient of determination of 96.5%.

Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Publishing Authors By Initials

RS Bejankiwar,KS Lokesh,TP Gowda,

For similar waste management: water purification research abstracts see: waste management: water purification research

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Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of environmental sciences (China)

VOLUME: 15

Page Numbers: 323-7

Journal Abbreviation: J Environ Sci (China)

ISSN: 1001-0742

DAY: 8

MONTH: May

YEAR: 2003

Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Information

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LANGUAGE: eng

NlmUniqueID: 100967627

Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Keywords Mesh Terms:

KEYWORDS: Water Purification

MESH TERMS: methods

Chemical & Substance for Abstract: Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method. Information

Substance Name: Oxygen

Registry Number: 7782-44-7

Grant and Affiliation Information for Colour and organic removal of biologically treated coffee curing wastewater by electrochemical oxidation method.

AFFILIATION: Department of Environmental Engineering, S. J. College of Engineering, Mysore-570023, Karnataka State, India. bezanki@rediffmail.com

Country: Netherlands

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MEDLINETA: J Environ Sci (China)

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