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Grit Classifier
The incoming material is pumped through the inlet to the grit classifier. Grit and similar materials are sedimented to the bottom by a horizontally moving bridge. Depending on the number of the collecting channel used in the project, number of grit classifiers may vary. They can be produced of aluminum, steel, stainless steel and galvanized steel.
Grit scrappers are used to sepa-rate sand, grit and similar inorganic ma-terials from waste water to prevent equipments of deterioration
and con-gestion of sedimen-tation tank. This unit might not be needed for treatment of the industrial waste water which doesn’t contain these above mentioned particles.
Grit scrappers are used to hold the particles which have a density superior to 2650 kg / m3 and a diameter superior to 0,1 – 0,2 mm. The sedimented sludge are collected and rotated by water flow and discharged by the appropriate pump through outlet. The waste water which is pumped from the grit scrappers are collected in the grit classifier unit. The driving unit, rotating spirally, discharge the sedimented sludge to a container located at the outlet.