초록 ▼

A method of treating an organic waste stream, such as the waste from a meat processing plant, to substantially remove solid organic matter from the stream. The method substitutes MgCl.sub.2 and small amounts of AlCl.sub.3 for the FeCl.sub.3 that was used in the prior art process, before adding polym

A method of treating an organic waste stream, such as the waste from a meat processing plant, to substantially remove solid organic matter from the stream. The method substitutes MgCl.sub.2 and small amounts of AlCl.sub.3 for the FeCl.sub.3 that was used in the prior art process, before adding polymeric flocculents. The polymeric flocculents are added as they are in the prior art, and the solid precipitate is removed by physical separation.

대표청구항 ▼

[ What is claimed is:] [1.]1. In a process for treating an organic waste stream from a food processing plant by the addition of a metal chloride and flocculation polymers to produce a flocculent that can be separated from the waste stream, the improvement comprising using a magnesium compound and an

[ What is claimed is:] [1.]1. In a process for treating an organic waste stream from a food processing plant by the addition of a metal chloride and flocculation polymers to produce a flocculent that can be separated from the waste stream, the improvement comprising using a magnesium compound and an aluminum compound instead of FeCl.sub.3 as the metal chloride, wherein the magnesium compound and the aluminum compound are each added in an amount effective to induce flocculation and reduce the BOD of the supernatant liquid to less than about 700 ppm when used in combination with a flocculating polymer at a pH of greater than 7.0.