Klebsiella - metabolism, Microbial Consortia - physiology, Biofilms - growth & development, Enterobacter - ultrastructure, Water Purification, Bacterial Adhesion, Enterobacter - metabolism, Citrobacter - metabolism, Shigella - growth & development, Salmonella - ultrastructure, Klebsiella - growth & development, Escherichia coli - metabolism, Citrobacter - gr...