INFLUENCE OF NA2O/AL2O3 AND SIO2/AL2O3 RATIOS ON THE IMMOBILIZATION OF PB FROM ELECTRIC ARC FURNACE INTO THE FLY ASH BASED GEOPOLYMERS

Electric arc furnace dust (EAFD) is by-product of iron and steel scrap remelting in electric arc furnace.This waste is classified as a hazardous material due to the leaching of heavy metals into the environment.Geopolymeryzation of fly ash into construction materials called - geopolymer is a considering as a possible way of immobilization of heavy

The bio-economy relies on microbial strains optimized for efficient large scale production of chemicals and fuels from inexpensive and renewable feedstocks under industrial conditions.The reduced one carbon compound methanol, whose production does not involve carbohydrates needed for the feed and food sector, can be used as sole carbon and energy s