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Home> Water Products> Chemical Dosing
 
Chemical Dosing
 

Several water and wastewater treatment process require a chemical feed and metering system for numerous applications such as flocculation, coagulation, disinfection and alkalinization. These chemicals can be in a gaseous, liquid or dry state. The chemical feed and metering systems should be designed according to the state and type of chemical. The following chart briefly presents the basic equipment for gas, dry and liquid chemical feed:

Chemical Phase Standard Dosing Equipment
Gaseous -Inlet pressure reducing valve, rotameter, metering control orifice and vacuum differential regulating valve
Dry -Gravimetric(Belt-Type or Loss-in-weight) or Volumetric feeder
Liquid -Positive displacement pumps, centrifugal pumps, dipper-wheel feeders and eductors
 

All metering pumps and valves should be carefully selected. Moreover, a good piping selection and design is critical in order to avoid corrosion problems and/or leakage. With over 3000 projects executed worldwide, let Napier-Reid be your single solution for water and wastewater treatment.

 

Chemical Dosing

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