Drum screen LIQUID

finefor wastewater treatment

Reliable fine screening with maximum separation efficiency Maximum retention of fibres and hair Operating reliability for membrane bioreactors Maximum COD / BOD5 reduction rates The HUBER Drum Screen LIQUID is available in different designs and suitable for numerous applications of solids-liquid separation. Depending on the specific application requirements the horizontal drum is covered with a mesh, wedge wire or perforated plate and is suitable for channel or tank installation. The characteristic feature of the HUBER Drum Screen LIQUID is its screen basket which is horizontally installed in the channel or in a tank. The wastewater to be treated flows through the basket from inside to outside. Whilst the wastewater flows through the open front into the screen basket, solids are retained within the drum. A special sealing between the channel and the front-end screen basket opening prevents unscreened wastewater from passing through the screen basket. The solids settling on the drum surface lead to gradual blinding of the surface. As a result, the water level upstream of the screen rises. When the predefined maximum water level has been reached, the screen basket starts to rotate around its axis to clean its surface. At its crown a spray nozzle bar sprays water onto the drum surface from outside to remove the solids and flush them into a trough inside the drum basket from where the screenings are discharged by gravity