From Production Machinery
Screening is a mechanical operation which allows the removal of solid matter contained into water to be treated. It is a pre–treatment which takes away pollutant solids whose dimensions exceed a certain size . It is the first step in a wastewater treatment process able to remove trash and debris carried by the water, such as wooden pieces, rags,paper, leaves and similar.
M.GB. offers a large range of screens , The commonest ones are the rotating brush type ( GSR models ),, located into the duct which carries the waste to the plant , suitable for low and medium depths , and the inclined plane type ( GCV models ) , which allow the displacement of the screened solids and fit to be installed into deeper reinforced concrete canals , as well as where a hydraulic uplift is foreseen.
The installation of such machines depends on operating working conditions of the Client and takes into account kind of matter to be removed , water speed , maximum and minimum flow and so on.
All models are entirely manufactured in AISI 304 and /or AISI 316 Stainless steel.
More precisely , GSR models are thought to be installed in reinforced concrete ducts but, upon request , are available in a different arrangement for external installations , featuring a stainless steel tank.
The screen slots can be rectangular ( mm 2 x 20 ) or circular ( diameter 5 mm ).
On the other hand GCV screens are fit to be positioned into deeper reinforced concrete canals and are provided with a cleaning system ( brush or water sprays system ) and come with a screen whose slots are rectangular ( mm 2 x 20 ) or circular ( diameter 5 mm ).