Vishuddhi Enviro
An Environmental Company

Step Screens []

The step screen system is widely accepted and successful due to its function, the easy to understand operation method, the simple cleaning method without any aids, easy servicing, its ability to handle very large screenings volumes and its operating reliability. It can be used as the fine mechanical treatment equipment at wastewater treatment plants. Step screens are intended for fine treatment and extraction of fine and medium waste solids from industrial and domestic wastewater with their subsequent unloading into the transporter or waste bin. The first step in the lower section of the screen is covered by a plate so that the lower section of the screen is covered by a plate so that the wastewater flow is not directed against it but onto the first step instead. also coarse material is routed directly onto the first steps of the lamella unit. Such optimal inflow conditions eliminate sedimentation in front of the screen. They can be suitable for any flow rate and has high separation efficiencies with the optional facility for lifting of screenings from the bottom level.


Step Screen are mainly available in two categories :

Coarse Screen

The Screen consists of a series of stationary and mobile ateps alternating with each other. As the effluent flows through the step screen, a screening mat developes along the surface of the screen. The mobile steps progresively lift the mat of solids along the inclination of the screen. On reaching the top of the step screen, the solids are discharged by gravity into a screw conveyor or similar device. Coarse screens are distinguished from the fine screens by the space opening. Coarse screens usually have a spacing of 6mm and larger where as fine screens spacing is usually betwwen 1.5mm to 6mm.

Fine Screen

We manufactures a high quality fine screen that delivers exceptional screening capabilities, long-term reliability, and an ultra hygienic and odor-free working environment. Removes hair and fine grit to protect downstream equipment and processes, without the possibility of screenings carry-over downstream.

Benefits
  • Lifting of screenings at bottom level due to a special bottom step design.
  • Gentle and complete screenings transport due to the counter-current principle.
  • Optimally adjustable to individual constructional conditions.
  • High capacity; the flow passes the screen surface only once.
  • High separation efficiency due to the narrow slot width and the produced screenings carpet.
  • Self-cleaning effect due to movable lamellas (no speay water, no brushes).
  • Very high operational stability; reduced susceptibility to grit, gravel and stines due to the bottom step washing system.
  • Very good corrosion protection.
Features
  • All stainless steel construction.
  • Fully enclosed, odor-controlled, ultra-hygienic operation.
  • Unique step design ensures effective screenings transfer.
  • High operational reliability.
  • Self-cleaning, low-friction, anti-distortion design bar screen.
  • Fully-enclosed, odor-controlled, ultra-hygienic operation.
  • Unique step design ensures effective screenings transfer.
  • Grease in large quantities can be discharged without difficulty.
  • No need for additional cleaning equipment.