Abstract: A method for flocculating microorganisms is described. The method comprises the steps of contacting the microorganisms with a cationic flocculating agent, contacting the microorganisms with an anionic flocculating agent, and flocculating the microorganisms. A method for sedimenting microorganisms is also described. The method comprises the steps of contacting the microorganisms with a cationic flocculating agent, contacting the microorganisms with an anionic flocculating agent, flocculating the microorganisms, and sedimenting the microorganisms. Also described are the flocculated microorganisms produced by the described methods and an animal feed supplement and a feed composition containing these flocculated microorganisms. The flocculated microorganisms can be, for example, yeast, bacteria, fungi, mycoplasma, and combinations thereof.

Abstract: A system for processing a biomaterial waste stream includes a waste fermentation system for converting the biomaterial waste stream to fermenting organism and a residual liquid. The waste fermentation system has a waste inlet port (LWI) receiving the biomaterial waste stream, a product outlet port (PO) for removing the fermenting organism and a liquid outlet (RLO) for removing the residual liquid. A number of sensors produce sensory information relating to operation of the waste fermentation system, and at least one control circuit monitors the sensory information and controls operation of the waste fermentation system by controlling one or more actuators associated with the waste fermentation system.

Abstract: A process for treating a biomaterial waste stream is described. The process may form part of a waste fermentation system. The treating process can degrade at least a portion of the biomaterial waste stream into other components or materials. These other components or materials may be reintroduced into a fermentation process as a nutrient for a fermenting organism.