Abstract: Systems and methods for treating waste water containing biological wastes such as animal waste generated in livestock-raising operations, wherein the waste water is subjected to a series of operations to separate solids from the liquid phase of the waste water and to biologically treat the waste water to break down organic components. The separated solids are stored for further treatment or conversion into useful materials. The treated liquid phase can be put to various uses. In one embodiment, the treated liquid is recycled as flush water for flushing animal waste from an animal barn, whereby little or no liquid phase escapes the system into the surrounding environment.

Abstract: This invention relates to an apparatus for molding slotted concrete floor sections. The apparatus forms the concrete floor sections in an inverted position so as to avoid the need for hand finishing of the upper surface of the molded concrete floor sections. The apparatus comprises a base, opposing pairs of interconnected upstanding side and end walls connected to the base and a plurality of elongate spaced apart and substantially parallel ridges connected to and projecting upwardly from the base. Attached to and overlying the ridges are a plurality of elongate keystone shaped dividers removably mounted on and extending upwardly from the ridges with the upper surface being in a substantially common plane with the upper surfaces of the side and end walls.

Abstract: An animal feeder, with separate pivotally supported gates on each side thereof which are generally vertically adjustable by adjustment means readily accessible at each side of the apparatus for varying the size of the respective feed discharge openings, is provided with means for permitting enhanced agitation of the feed in the hopper and means for improving the control of feed from the hopper including means overlapping with the ends of the pivotally supported gates for preventing feed from the feeder storage hopper from flowing around the side ends of the gates, and also with locking means for many easily securing the gates in desired vertically adjusted positions while permitting increased agitation of the feed in the hopper.