Vortex Grit Removal

Designed to quickly separate grit and inorganic solids from wastewater with minimum energy requirement.
Grit removal from wastewater is vely important
to reduce operational problems of wastewater treatment plants and to reduce maintenance of the mechanical equipment installed in it.
Grit and other solids can increase the wear of the mechanical equipment, cause pipe blockag-es, can settle, and reduce the effective volume of the treatment basins. Vortex Grit Chambers are designed to separate grit from organics and raw sewage water.
Screened wastewater enters tangentially and creates a vortex current. As the vortex grit chamber is designed to handle the variable flow. Under the influence of centrifugal force and gravity. grit and other solids quickly collect at the center of the grit chamber, enter the grit hopper and settle down along the sloping floor.
Applications
New wastewater treatment plants or retrofit projects.
Industrial effluents.
sand and gravel extraction plants.
Filter media recovery

Advantages:
Efficient grit removal over variable flow rates
Rugged precision bearing drive
Compact design reduces civil work expenses
Low energy consumption
Easy installation even into existing tanks
Simple and inexpensive maintenancerequirements
Grit removal can be supplied as :
Stand-alone (free standing)made of stainless steel. Specialized internal components mounted in a concrete chamber
Settled grit is automatically removed from the vortex grit chamber settling area by an airlift pump which is mounted above the grit chamber with an air blower is periodic extracts grit from the storage chamber.
Pumped grit slurry is fed to a grit classifier or final processing
Advantages of airlift system:
Absence of any mechanical moving parts in contact with the fluid to be lifted.
Large flow clearance, practically the same as the nominal diameter. Easy operation.