Bar screen HSR

for wastewater treatment

The HSR-Screen is a state of the art overflow bar screen installed in all kinds of overflow structures of combined sewer channels (CSO). It is a full automatically operating system to retain floating debris and solids inside the sewer channel, preventing them of being released into the receiving waters without treatment. Therefore the HSR-Screen contributes significantly to a reduction of BOD being released into our natural waters during emergency overflows. The HSR high-performance screen is a horizontal bar screen with an automated cleaning system. “Bullet shaped” bars reduce hydraulic losses resulting in a reduction of the upstream water level Fully automatic cleaning device for safe operation Automatic message send to service team in case of a malfunction Stainless steel construction Optional: integrated tele control and operation data recording Storm water retention tanks Pre-treatment for soil filter Combined sewer channels Any kind of overflow structure (CSO) When water flows go through the HSR-Screen, floating debris are retained by the screening area. The screening area consists of parallel bars. Several cleaning trolleys, which are equipped with rakes, clean the screen surface in clockwise and anticlockwise motion. Cleaning is done before and between the bars. The discharge of the screenings to a low-flow zone takes place on the upper side and remains in the inlet. The cleaning unit is driven electro-hydraulically with a hydraulic cylinder. If the screen system is additionally equipped with a traversing device, the screen will automatically be moved out of the relief cross section when laid (optional version).