The STS Bandscreen is designed for fine screening of water and waste water at inlet to Sewage Treatment Works or similar, where a means of removing solids from the process flow is required to improve works efficiency.

The STS Screen is fitted with modular panels in order to make installation, maintenance and screening more efficient. The Screens are able to filter to either 3, 5, 8 or 10mm in two directions. The modular design enables Jacopa to install and retrofit screens into both new and existing installations.

The STS Fine Screen is arranged across the full channel width and at 90⁰ to the incoming flow. Debris is retained on the upstream side of the screen band and screenings are elevated out of the flow by the moving step screen construction. At high level, the screenings are removed by a combination of gravity and a pressurised jet system incorporating a series of spray nozzles, located inside the screen head section. Screenings are then deposited into a launder or conveyor system. After passing through the screen curtain, screened flow passes to the downstream side through vents in the screen structure to reduce headloss.

This highly efficient STS band screen provides outstanding performance that outstrips all its rivals and  offers a remarkable 81% Screen Capture Ratio (SCR) efficiency in a single pass when screening at 6mm perforation with no carryover.

The screens are manufactured in either stainless steel (304/316) or carbon steel to ISO 9001 quality assurance standards. The new modular construction of the STS screen enables Jacopa to manufacture units in 150mm increments from 450mm to 2000mm wide, thus covering a wide range of flows. The new inclined screens can be installed in channels at either 45° or 65° to the horizontal and discharge screenings at or above coping level to suit individual applications for screening compaction.

The new STS design uses patented screen panels from the Brackett Green CF100 product range. These panels help prevent hair pinning and only require waste water to clean the screenings from the panels (this eliminates the requirement for a cleaning brush, therefore reducing power consumption and reduced TOTEX costs). The robust one piece steel frame design utilises an endless band of screen panels, which are easy to maintain and replace. Below the water line, the band is guided by its frame, thus eliminating any permanently submerged moving parts.

Features: The Jacopa STS fine screens are suitable for flow rates ranging from 50 to 1000 l/sec in channels ranging from 450mm to 2000mm wide and depths from 1m to 8m. The screen panels are plastic injection moulds and have a high density impact design.