A feed structure may be used in conjunction with a sedimentation vessel in order to separate solids and liquids, which may be in a slurry, from each other. The feed structure comprises a feed chamber housing a central wall At least one port is positioned at the base of the chamber. A feed well that is substantially concentric with the feed chamber is also used. The feed chamber is in communication with the feed well wherein slurry flows through the said port to access the feed-well. An outlet is positioned on the feed well (such as near the bottom of the feed well). Slurry may flow through the outlet into the sedimentation vessel.