Removal lead from waste water in battery recycle village of Viet Nam by low cost adsorbent created from treated fy ash and polyurethane foam

Abstract

      The objective of this research is to create a low cost material with high heavy metal removal capacity. Our study focuses on preparing a composit which can remove lead from wastewater of battery recycle villages of Vietnam, based on treated fly ash (TFA) and polyurethane (PU) foam. Fly ash after treating by thermal and NaOH has the surface area of 250.12 m2/g which leads to its high adsorption capacity, monolayer adsorption capactity = 3gPb/g. The preparation of PU foam and treated fly ash (TFA) process was conducted by mixing TFA and PU foam then treated withthermal. The TFA supported PU can increase the absorption capacty of PU. The PU/TFA composit was performed its removal of 87% lead in wastewater of batery recycle village. In this research, we successfully created a low cost adsorbent that can be used in recycle villages in Vietnam where heavy metal contaminated wastewater has not been treated properly.