EFFICIENCY OF SOME CHEAP MATERIALS IN REMOVING SOME HEAVY METALS
Investigation tests showed the susceptibility of bacterial isolates (Leuconostoc mesenteroids spp.mesenteroids ATCC829, Leuconostoc mesenteroids, Leuconostoc mesenteroids ssp.dextranicum, Lactobacillus casei, Lactobacillus rhamosus GG, Lactobacillus plantarum, Leuconostoc mesenteroids) to biofilm formation using titration microplates. In removing metals, it was chosen in conducting subsequent experiments, and the live mass of the two isolates Lactobacillus casei and Leuconostoc mesenteroids showed better retention of lead, cadmium, and cobalt than the biofilm of which it is composed. The results of restriction using multiple materials (sodium alginate, white sand, glass sand, sugar cane residues, activated carbon, Orbeez balls, silica gel, sponge, sunflower seed husks, date kernels, and coconut residues) showed positive results in the removal process. The restriction of adsorption-efficient bacterial cells using Orbeez balls and silica gel was shown to be the best substrate compared to other restrictive substrates.
Keywords: Leuconostoc Mesenteroids, Orbeez Balls, Silica Gel, Biofilm, Heavy Metals.