Many industries use a chemical feed system, from chemical manufacturing and water treatment plants to agriculture and food production. In the dosing process, chemicals are injected into a chemical feed tank at a precisely controlled rate with positive displacement metering pumps. There are many applications, such as for pH neutralization in waste water treatment, fluoride addition to a municipal water supply or to sterilize food and beverage manufacturing equipment. Another type of chemical feed system is a dry polymer mixing system, fitted with a polymer dosing pump, which is used with dry or liquid polymers. 

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