Anaerobic treatment method and anaerobic treatment apparatus

Details Anaerobic treatment method and anaerobic treatment apparatus Anaerobic treatment method and anaerobic treatment apparatus

2011-07-05

2011-07-05

Prince, Fred (Department: 1776)

Liquid purification or separation

Processes

Treatment by living organism

C210S616000, C210S631000, C210S928000, C435S262500

Reexamination Certificate

active

07972511

ABSTRACT:
A method and apparatus of anaerobic treatment which makes it possible to prevent disintegration of granular sludge and perform high-load high-velocity anaerobic treatment stably even in the case where treatment is performed under conditions where the granular sludge is easily disintegrated. In a reaction tank20which retains the granular sludge, nitric acid or nitrous acid is adjusted so that they have a certain concentration range. For example, nitric acid is added to the liquid to be treated by connecting the nitric acid addition path12to a midway point of the path of the liquid to be treated31which introduces the liquid to be treated to the reaction tank20, and nitric acid is mixed with the liquid to be treated. By introducing nitric acids within the reaction tank20, denitrifying bacteria etc. can multiply, and disintegration of the granules is prevented.

REFERENCES:
patent: 6015496 (2000-01-01), Khudenko
patent: 2004/0256317 (2004-12-01), Yamada et al.
patent: 2006/0043018 (2006-03-01), Juby
patent: 2006/0191846 (2006-08-01), Sumino et al.
patent: 61-197096 (1986-09-01), None
patent: 04-007099 (1992-01-01), None
patent: 4-310294 (1992-11-01), None
patent: 06-154785 (1994-06-01), None
patent: 07-155790 (1995-06-01), None
patent: 2563004 (1996-09-01), None
patent: 08-281284 (1996-10-01), None
patent: 11-285696 (1999-10-01), None
patent: 2000-024687 (2000-01-01), None
patent: 2001-137889 (2001-05-01), None
patent: 2003-024988 (2003-01-01), None
patent: 2003-039093 (2003-02-01), None
patent: 2004-000955 (2004-01-01), None
patent: 2005-342588 (2005-12-01), None
patent: 2006-272252 (2006-10-01), None
International Search Report for PCT/JP2008/055003, mailed Jun. 24, 2008.
Karim K et al., “Effect of shock and mixed nitrophenolic loadings on the performance of UASB reactors”, Water Research, Elsevier, Amsterdam, NL, vol. 40, No. 5, Mar. 1, 2006, pp. 935-942.
European Search Report dated Apr. 26, 2011 in corresponding European Patent Application 08722397.0.

Affiliated with

Also associated with

Rating

Anaerobic treatment method and anaerobic treatment apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anaerobic treatment method and anaerobic treatment apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anaerobic treatment method and anaerobic treatment apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2653072