This product is a totally enclosed plug and play unit for the pre-treatment of wastewater with a capacity from 10 l/s (158 gpm) up to 200 l/s (3170 gpm) and its purpose is to remove water’s grit particles, fat, oils, grease and fine solids.

This is a compact unit, fully equipped, so that it can be connected immediately to inlet and outlet pipeline.

The compact unit retains up to 85-90% grit particles greater than 0.16 mm in diameter at the design flow or 85% of the grit particles greater than 0.2 mm in diameter at maximum flow. Is manufactured entirely of stainless steel and its dimensions are especially established according to each application.

There are available 2 models:

Compact unit A used for removal of Screenings and Grit.

It’s equipped with a screw screen or a fine step screen (depending on the volume of water to be treated) in order to retin and transport the solids and includes grit removal utilizing a grit trap and a screw.

  1. Inlet
  2. Screw screen/ Fine step screen
  3. Grit trap
  4. Grit screw
  5. Outlet
  6. Grit container
  7. Sand container
  8. Level gauge

The second screw can be equipped on demand with a wash system witch will reduce the organic load on solids and sand.

The advatages of Compact unit A:
  • customized solution adapted to each project demands;
  • easy installation and maintenance;
  • low investment costs;
  • low operation costs.

Compact unit B is used for fine solids screening, grit and grease removal from wastewater. Is equpped with screw conveyor or fine step screen (depending on the volume of water to be treated) in order to retain and handle the solids, and includes grit removal by using a grit trap with screw, aeration system, giving impetus to fat gravitational separation, grease scraper with scraper blade for fats handling from water surface to the screw conveyor.

  1. 1. Inlet
    2. Screw screen/ Fine step screen
    3. Grit trap with screw conveyor
    4. Partition wall
    5. Aeration
    6. Grit Screw
    7. Grease scraper with scraper blade
    8. Drive unit grease scraper

9. Grease pump
10. Outlet
11. Solids container
12. Sand container
13. Air blower
14. Level gauge
15. Grease level gauge
16. Air flowmeter

Compact unit B has the following advantages:
  • customized solution adapted to each project demands;
  • easy installation and maintenance;
  • low investment costs;
  • efficient grease separation through the aeration system.
Both compact units type can be equipped with automatic washing, transport and retentions dehydratation equipment composed of inlet, shaftless screw, flushing equipment, discharge, press/dewatering unit (retentions dehydratation), reject of water and driving unit.

According to the unit placement distance to the containers, a new screw conveyor can be necessary (in order to make the connection between equipments).