Anaerobic sludge digester

Details Anaerobic sludge digester Anaerobic sludge digester

2007-11-20

2007-11-20

Barry, Chester T. (Department: 1724)

Liquid purification or separation

Gravitational separator

Superposed compartments or baffles, e.g., parallel plate type

C210S532100, C210S538000

Reexamination Certificate

active

11313155

ABSTRACT:
A method is provided for introducing a fresh sludge flux whose concentration in terms of dry material is less than 40 g/l into the upstream part of digester, maintaining a thin sludge layer in the digester, circulating substantially horizontally effluents above and across the sludge layer and removing the effluents from the digester simultaneously with soluble products of sludge digestion. The cuvette of the digester is divided into sections by transverse walls, which are provided with communication openings in the lower part thereof.

REFERENCES:
patent: 5091315 (1992-02-01), McCarty et al.
patent: 6673243 (2004-01-01), Srinivasan et al.
patent: 2003/0034300 (2003-02-01), Srinivasan et al.
patent: 3316720 (1984-11-01), None
patent: WO01/79121 (2001-10-01), None
EPO Search Report, Dec. 18, 2004.
Boopathy, R. et al.; “Anaerobic Digestion of High Strength Molasses Wastewater Using Hybrid Anaerobic Baffled Reactor”; Water Research, Elsevier Science Publishers, Amsterdam, NL, vol. 25, No. 7, pp. 785-790; XP000211206, ISSN: 0043-1354; p. 1, Figure 4, Jul. 1991.

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