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Title 

Electrochemical removal of sodium ion from fermented food composts

Authors 

Ki Tae BaekHyun Ho LeeHyun Jae ShinJi Won Yang

Publisher 

Korean Institute of Chemical Engineer

Issue Date 

2000

Citation 

Korean Journal of Chemical Engineering, vol. 17, no. 2, pp. 245-247

Keywords 

electrochemical removalfoodwastescompostsdesaltingsodium chloride

Abstract 

Fermented food composts, to be recycled into fertilizer and animal feed, require sodium chloride concentrations to be less than 1 wt% due to several toxicities. Electrochemical methods are used to remove sodium ions from fermented food composts. By washing the compost with tap water (with no electric current applied), 48% of the initial sodium ion is removed. With an electric current density of 3 mA/cm2 (the distance between the electrodes is 16 cm), the removal efficiency increases to 96% for a 36 h operation. Major factors influencing the efficiency are the treatment time and the electric current density. Removal efficiency increases with energy demand to yield 96% removal at 60 Kwh/m3. Due to the difference in relative ionic mobility, less than 9% of calcium is removed, during the same operation time, which supports the feasibility of this method.

ISSN 

0256-1115

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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