Production of highly efficient Bacterial flocculant in water treatment

A bioflocculant is a kind of biodegradable flocculants produced by many microorganisms Including different type of bacteria during their growth. The aim of this study was the production of bacterial bioflocculant highly efficient and which has special advantages: such as safety, susceptibility to degradation and harmless to humans and the environment and to make a comparison with electrostatic precipitators industries such as salts of aluminum (alum) , and therefore is likely to be applied in drinking water and sewage treatment to benefit from bioflocculants widely in the areas of water purification . Where were isolated and purified kinds of different bacteria and diagnosis by vitek 2 compact and traditional ways of some isolates to confirm them either isolation Bacillus spp. then preparation bioflocculants. The results showed the highest value for the type of bacterial Bacillus ssp. were 94 % and less value was Enterobacter spp. % 82 compared with alum aluminum salts recorded 95% , with kaolin suspension when the pH optimum was (7) at room temperature, the presence of calcium chloride have shown the results of the statistical analysis and there is a difference significant at * (P <0.05) in the density values optical (OD).