COPACURVE™ Cross Wave Screen

The COPACURVE™ cross wave screen can be fabricated to fit a variety of combined sewer overflow (CSO) chambers (square, rectangular, oval, round, etc.). The  Copacurve™ proven technology provides screening to 6mm in two dimensions. Its unique wave design increases the overall surface area, and longevity of operation of this non-powered static screen.

The perforated plate creates a physical barrier in the path of the flow, retaining the gross solids so that they are not passed over the weir. The operating principle of the Cross Wave Copacurve™ is typically installed in a horizontal position and at 90 degrees to the overflow weir, allowing the upward flow to pass through the screen. The unique wave design of the screen ensures the screening material is retained in the main flow passed forward to the treatment process and self-cleaned by the velocity of the water being passed forward.

The screens are manufactured in stainless steel (304L or 316L) and have a smooth profile screening surface which is electro polished to remove all sharp edges and enhance screenings drop off.

The Cross Wave Copacurve™ has a standard wave form depth of 300mm (other design options available), providing a screening area of three square meters for every one square meter of plan area.

The design flow rates per square meter of screen (plan area) are:

• Settled sewage – 150 l/sec/m2
• Unsettled sewage – 75 l/sec/m2 Flow rates are calculated assuming the screen to be operating with a 60% blinding factor at maximum flow.