Improving the rate of Cu+2 recovery from industrial wastewater using a vertical array of reciprocating perforated zinc discs

This work investigates the possibility of improving the rate of Cu+2 recovery and/or removal from industrial wastewater by cementation technique using an array of pulsating horizontal perforated zinc discs. The results show that the rate of cementation was found to increase by increasing frequency a...

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Bibliographic Details
Published inAlexandria engineering journal Vol. 54; no. 1; pp. 71 - 76
Main Authors El-Shazly, A.H., Mubarak, A.A., Farag, H.A., Fadl, A.G.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2015
Elsevier
Subjects
Cementation
Copper recovery
Perforated disc
Reciprocation
Wastewater
Reciprocation
Copper recovery
Wastewater
Perforated disc
Cementation
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Summary:This work investigates the possibility of improving the rate of Cu+2 recovery and/or removal from industrial wastewater by cementation technique using an array of pulsating horizontal perforated zinc discs. The results show that the rate of cementation was found to increase by increasing frequency and amplitude of oscillation (vibrating velocity); disc diameter; copper ion concentration and solution temperature while decreasing by increasing the disc separation. Under certain conditions using pulsating array of perforated zinc discs was found to increase the rate of mass transfer by a factor of 17 times the stagnant discs. The activation energy of the reaction was found to be 8.948kcal/mol which indicates that under the present conditions cementation takes place under mixed control, i.e. the reaction is partially diffusion control. As such no overall mass transfer correlation could be obtained.
ISSN:1110-0168
DOI:10.1016/j.aej.2014.10.002