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Fekadu Melak     Senior Scientist or Principal Investigator 
Timeline See timeline
Fekadu Melak published an article in November 2017.
Top co-authors
Gijs Du Laing

117 shared publications

Department of Green Chemistry and Technology

Argaw Ambelu

36 shared publications

Department of Environmental Health Science and Technology, Jimma University, Jimma, Ethiopia

Esayas Alemayehu

3 shared publications

School of Civil and Environmental Engineering, Institute of Technology, Jimma University, Jimma, Ethiopia

Publication Record
Distribution of Articles published per year 

Total number of journals
published in
CONFERENCE-ARTICLE 13 Reads 0 Citations Freeze desalination as point of use water treatment technology: A case of chromium (VI) removal from water Fekadu Melak Assaye, Argaw Ambelu, Gijs Du Laing, Esayas Ale... Published: 16 November 2017
Proceedings, doi: 10.3390/ecws-2-04942
DOI See at publisher website ABS Show/hide abstract

Options to develop tanning industries could be hindered even in the presence of huge leather industry raw materials due to the requirements of high-tech contaminant removal technologies, especially in developing countries. This study was initiated to investigate the efficiency of freeze desalination for Cr(VI) removal using refrigerators to generate fresh water. Synthetic solutions that represent major ion compositions of drinking water as well as deionized water to which known concentrations of Cr(VI) spiked into it, were added and frozen in a closed freezer unit. The effects of different parameters such as initial concentration, freeze duration, ice nucleation, fraction of ice volume, and influence of co-occurring ions were evaluated in relation to the quality of produced ice. The physicochemical characteristics of the produced meltwater were also evaluated. A high total water recovery of up to 85% was achieved in the experimental evaluation. Cr(VI) removal efficiency of up to 80% from simulated tap and 93 to 97% for deionized water spiked with Cr(VI) were found in this batch partial freezing. Freeze desalination was found to be relatively viable desalination technology in terms of quality of water produced, options on the use of cost effective refrigerants and technologies which could have a pertinent importance to save energy consumption of freezers.

Article 4 Reads 0 Citations Evaluation of natural quartz and zeolitic tuffs for As(V) removal from aqueous solutions: a mechanistic approach F. Melak, E. Alemayehu, A. Ambelu, E. Van Ranst, G. Du Laing Published: 10 July 2017
International Journal of Environmental Science and Technology, doi: 10.1007/s13762-017-1379-y
DOI See at publisher website
Article 7 Reads 0 Citations Use of porous volcanic rocks for the adsorptive removal of copper Esayas Alemayehu, Fekadu Melak, Saroj K. Sharma, Bart Van De... Published: 08 February 2017
Water and Environment Journal, doi: 10.1111/wej.12234
DOI See at publisher website
Article 0 Reads 4 Citations Application of freeze desalination for chromium (VI) removal from water Fekadu Melak, Gijs Du Laing, Argaw Ambelu, Esayas Alemayehu Published: 01 January 2016
Desalination, doi: 10.1016/j.desal.2015.09.003
DOI See at publisher website