Many of the major industries affect the environment as a result of producing heavy metals that ends up in wastewater. The existence of heavy metals in wastewater as a result of many manufacturing processes is a legalized problem worldwide. Removing heavy metals from industrial wastewater required high energy and/or special operations requirements. Several techniques such as adsorption, extraction, coagulation, precipitation, ion-exchange, electrochemical methods, membrane processes, and biosorption have been assumed for the treatment of wastewater. But adsorptions methods are most suitable for wastewater treatment due to its cost effectiveness and simplicity, among all these methods.
Actually, natural zeolite obtains growing attention of many investigator due to its special characteristic such as ion exchange capacity, hydration-dehydration, and adsorption. Zeolites are aluminosilicate minerals of alkali or alkaline earth metal which contains crystal water. Zeolites consist of three dimensional networks of AlO4 and SiO4 tetrahedra linked by sharing of all oxygen atoms. The voids make up from 20 to 50 % of the total crystal volume of most zeolites. For wastewater treatment, the most important properties of natural zeolite are cation exchange capacity and ion selectivity.
Jordanian natural zeolites (JN Zeolite) have been used for the removal of different kind of heavy metals such as: nickel, cadmium, and copper from prepared aqueous solution. In this work our main object is to measure the capability of JN zeolite in heavy metals removing by determining their breakthrough times, isotherms, kinetic for a wide range of concentration and in both batch and fixed-bed column technique.
Session: L10 - Short Oral + Poster Presentations
Day: 14 March 2018
Time: 14:45 - 16:45 h