Study of Biofilm Forming Bacteria in Urban Drinking Water and the Inhibitory Methods

The maintenance of health and quality of drinking water is one of the major priorities in water supply systems. Formation of biofilm in water pipelines, tanks and domestic water purifiers is one of the important concerns in this regard. Viruses, bacteria and protozoa could easily transport with water flow among which, some certain bacteria have the ability to attach to the surfaces and form biofilms. Formation and growth of the biofilm could negatively affect the water flow, quality and health. Biofilm forming bacteria eject compounds which protect them against the damaging factors and through this process biofilm become resistant to degradation. Some of the biofilm creating bacteria also have pathogenic capabilities even in humans, which is crucially important in maintenance of the health of drinking water. Due to the importance of knowing the biofilm forming communities in urban drinking water supply, the present paper investigated the biofilm and its major bacterial agents and removal methods.