Patent · US Active

Anaerobic digestion apparatus, methods for anaerobic digestion and for minimizing the use of inhibitory polymers in digestion

US7708885B2 · kind B2 · utility

13Cited by
41References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 8, 2008
Grant dateMay 4, 2010
Priority date
Expiry dateAug 8, 2028

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02W10/20
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

The invention includes an anaerobic solids digestion apparatus comprising a digester, at least one draft tube; at least one nozzle and a biogas source; a method for digesting a waste stream in an anaerobic solids digestion apparatus comprises feeding a waste stream to a digester; reacting the anaerobically biodegradable material in the waste stream with anaerobic bacteria in the digester; introducing a mixed liquor into the digester 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.