Additional chemical processes as an alternative for solving water and corrosion inside the system. Passenger then fills up the chemical synthesis of phosphate compounds in combination with the, which causes one of the Eutrophication phenomenon that affects aquatic ecosystems. Thus, the polymer additives category is the way to control water quality, quantity of ion in the appropriate level. Buses in groups of polymer to create a bond with the existing positive ion in water using specific Ca2 + and Mg2 + complex compound is [1, 2], and then eliminated from the manufacturing process by the settling.
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