The ZICKERT Shark sludge scraper from WesTech Engineering is based on the forward and return movement of sections. The concave faces of the sections transport the sediment toward a biosolids pit. During the return movement, the wedge-shaped parts of the sections slide under the sludge blanket, providing continuous and uninterrupted transport. The system has few moving parts, can be powered by hydraulic or electric motors, and operates whether it is pulled or pushed, offering flexibility when locating the drive. It is simple to install and easy to maintain, leaves no dead zones and doesn’t create turbulence. 801/265-1000; www.westech-inc.com.