The grates consist of metal bars with gaps between them. Water passes through these gaps, and debris remains on the grate.
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Grilles
Grilles
Screens are devices used in wastewater treatment plants to remove large debris from wastewater. They trap rags, plastic, paper, branches, and other solid objects.
Lattices perform important functions:
- do not allow garbage to enter the pipes;
- protect pumps and equipment;
- facilitate further water purification.
This garbage is then removed manually or automatically by special mechanisms.
Types of grilles
- coarse - retain large debris;
- coarse - retain large debris; medium - for smaller particles;
- small ones - for more delicate cleaning.
They also happen to be:
- manual;
- mechanical;
- automatic.
Pros and cons
Advantages:
- simple design;
- reliability;
- cheap to maintain.
Disadvantages:
- need to be cleaned regularly;
- garbage accumulates.
Screens are the first and most important step in water purification. They help remove large debris and protect all other equipment.