Proceedings

Current Challenges

• Storm overflows
• Public perception and environmental impact
• Static screen blockages, maintenance & H&S challenges

Norag concept and design British Patent No. GB2584770

•  All Static screens will ultimately block during prolonged storm event or without intervention
• If the incoming rag load is reduced, then the screen will remain clear for longer
• The Venturi effect induces the rag load from under the screen and passed forward to works
• The minimum throat diameter matches CSO output diameter
• The Venturi is eccentric with flat bottom taper to prevent grit build-up