Soraya Hosseini
1University of Malaya,
Malaysia
Title: The potential of natural gelatin generated from Sisymbrium irio seed in water treatment processes
Biography
Biography: Soraya Hosseini
Abstract
Many treatment methods have been proposed for removal of pollutants from water. The feasibility of a natural gelatin from Sisymbrium irio seeds to remove dyes (methylene blue, and methyl orange) and reducing turbidity of kaolin water has been examined. Various natural materials were applied for removal of dyes, heavy metals, organic compounds and reducing turbidity from wastewater; however, some issues such as the presence of poisoning materials appeared due to utilization of those natural materials. Sisymbrium irio seed is widely used as medicine for treating some disease, indicating the edible seed is free poisoning. Various enzymatic degradation products are formed from Sisymbrium irio seed when the seed tissue is disrupted due to content glucosinolates. These products contribute to adsorbing anionic and cationic dyes from water in which the dyes are totally removed in all pH range of solutions; however, reduction in turbidity of kaolin water was not observed. The highest amount of natural gelatin was obtained in the pH range 5 to 7. A color reduction of over 99% was achieved at equilibrium using an methylene blue concentration of 200 mg/L with 5 g seed in the pH range 3 to 10 and also 98% methyl orange was removed in the pH range 5 to 10. A color changing of the Sisymbrium irio seed was observed form orange to dark blue aft er removal of methylene blue. The results show that the enzymatic degradation products are totally able to remove both cationic and anionic dyes that may have occurred due to bonding with various functional groups such as OH, SO3, SH, CN, etc. For this reason, no flocculation occurred in kaolin water without any surface charge to reduce turbidity.