Monday, 10 April 2017 13:22

Removing Heavy Metals from Industrial Wastewater Using Cement Kiln Dust and Electric Arc Furnace Dust as Industrial By-Products

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Removing Heavy Metals from Industrial Wastewater Using Cement Kiln Dust and Electric Arc Furnace Dust as Industrial By-Products
S. A. Abo-El-Enein1*, M. S. Attia1, M. M. Ali2, G. G. Mohamed3, M. S. S. Soliman2
1Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
2 Chemistry Department, Central Laboratory for Environmental Quality Monitoring, National Water Research Center, Cairo, Egypt
3 Chemistry Department, Faculty of Science, Cairo University, Cairo, Egypt
Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it. (S. A. Abo-El-Enein)
Tel: +202 01005363830
Abstract
The River Nile and its branches are the main source of fresh water in Egypt. They are subjected to all pollution sources, among and most important of it is the industrial one. This study aims to investigate removal efficiency of industrial wastewater discharged to Ismailia Canal using cement kiln Dust (CKD) and electric arc furnace dust (EAFD) as industrial adsorbents. Some heavy metals such as; iron, manganese, aluminum, nickel, and zinc have been studied. The adsorption process is examined in terms of its equilibria and kinetics. Batch adsorption experiments are performed to evaluate the removal of these metals onto CKD and EAFD by-product wastes under various operational conditions such as; adsorbate ions concentration, contact time, pH, adsorbent dose, and temperature. The results revealed that CKD has a very high affinity to adsorb iron, manganese, nickel, and zinc ions. While, EAFD can efficiently adsorb only manganese, aluminum and nickel. The adsorption isotherms and kinetic studies indicated that the adsorptive behavior of heavy metals ions on CKD and EAFD satisfy the Langmuir assumptions, i.e. monolayer formation on the surface of the adsorbent, and obeys the pseudo-second-order equation reaction.

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