A composition for preventing formation of slime which comprises a chlorine-based oxidizing agent, a sulfamic acid compound, one of an anionic polymer or a phosphonic acid compound and a process for preventing formation of slime which comprises adding the composition to a water system are disclosed. Troubles caused by slime in cooling water systems, heat-storage water systems, water systems in manufacturing processes of paper and pulp, water systems for collecting dusts and scrubber water systems can be effectively prevented with the composition in a small amount.
A method and composition and system which for the oxidation, clean up, removal and control of iron and iron deposits in water and the removal of iron deposits and bacterial bio-films from surfaces in water systems. The composition contains sodium chlorite, sodium hypochlorite and citric acid.
