| abstract |
The invention includes an anaerobic solids digestion apparatus (100) comprising a digester (30), at least one draft tube (28), at least one nozzle (18) and a biogas source (27), a method for digesting a waste stream in an anaerobic solids digestion apparatus comprises feeding a waste stream to a digester (30), reacting the anaerobically biodegradable ma terial in the waste stream with anaerobic bacteria in the digester (30), introducing a mixed liquor into the digester (30) and mixing the mixed liquor, and a method for minimizing the use of inhibitory polymers by concurrently digesting and concentrating the mixed liquor in the digester (30). |