Nanocomposition Bentonite Algenate for Bacterial Treatment

Abstract

The use of polymer nanocomposites as novel materials for water remediation has emerged as a promising alternative for disinfection of bacteria contaminated water. Bentonite clay technique was successfully applied to improve wastewater quality and upgrade its use in agricultural and industrial purposes. Bentonite is a natural clay characterized by possessing excess of negative charges on its lattice and swell into very large surface area when dispersed in water. Sodium alginate, a natural biopolymer has been investigated in this study by encapsulating antimicrobial zinc oxide nanoparticles supported bentonite. The confirmation of the alginate nanocomposites was done by use of TEM, FESEM and XRD. The antimicrobial activity of the bentonite alginate nanocomposites alginate nanocomposites was investigated by batch studies using wastewater outlet. The effect of bentonite ZNO-nanocomposite beads ZNO-nanocomposite beads, bentonite on total count of bacteria and count of enterobacteriacea has been studied. The inactivation results indicated that the nanocomposite effectively inactivated bacteria in wastewater. With an amount of 0.5 g of the bentonite,0.2 g, 0.5g,1g from nanocomposites beads, the decreased in number of bacterial counts have an expulsion relationship with the increased of nano composition beads of bentonite. Therefore, the results of this study have indicated that the alginate nanocomposites can be deemed as a potential antimicrobial agent for water disinfect. Sodium alginate immobilized microorganisms were found to be an environmentally friendly and cost-effective alternative for treatment of municipal and industrial wastewater outlet.