Liquid purification or separation – With gas-liquid surface contact means
Reexamination Certificate
2005-04-05
2005-04-05
Upton, Christopher (Department: 1724)
Liquid purification or separation
With gas-liquid surface contact means
C210S615000, C210S541000
Reexamination Certificate
active
06875344
ABSTRACT:
A trickle tower for treating wastewater has a support structure containing biomedia, preferably strands of looped cord biomedia. A spray arrangement for spraying wastewater onto the biomedia has the combination of at least one rotatable device with nozzle openings movable along circular paths as the device rotates, and stationary nozzles. A continuous flow of wastewater is supplied to the rotatable device, and intermittent pulses of wastewater are supplied to the stationary nozzles. By strategically locating the stationary nozzles, different shaped cross-sectional areas of biomedia can be adequately sprayed. In place of the rotatable device can be an oscillating manifold extending across the biomedia and having a slot nozzle for cascading wastewater downwardly onto the biomedia with or without the stationary nozzles. A base receptacle below the biomedia receives wastewater falling from the biomedia. The biomedia is surrounded by a flexible curtain suspended from the support structure and extending down to the receptacle, enabling different shaped cross-sectional areas of biomedia to be accommodated. The curtain may have a vertically-extending, releasably-closeable opening.
REFERENCES:
patent: 681884 (1901-09-01), Monjeau
patent: 968015 (1910-08-01), Wilkie
patent: 2008507 (1935-07-01), Laughlin
patent: 2141979 (1938-12-01), Orin et al.
patent: 2220859 (1940-11-01), Bispham et al.
patent: 2308866 (1943-01-01), Dekema
patent: 3238124 (1966-03-01), Burton
patent: 3275147 (1966-09-01), Gilde
patent: 3407935 (1968-10-01), Burton
patent: 3876542 (1975-04-01), Carlson
patent: 4011162 (1977-03-01), Oldham et al.
patent: 4422930 (1983-12-01), Hatanaka
patent: 4451362 (1984-05-01), Spelsberg
patent: 4717519 (1988-01-01), Sagami
patent: 4729828 (1988-03-01), Miller
patent: 5085766 (1992-02-01), Born
patent: 5232676 (1993-08-01), Wolff et al.
patent: 5397474 (1995-03-01), Henry
patent: 5622630 (1997-04-01), Romano
patent: 5976377 (1999-11-01), Hyfantis, Jr. et al.
patent: 6241889 (2001-06-01), Haley, III
patent: 6406630 (2002-06-01), Henry
BioProcess Technologies Ltd.
Upton Christopher
Wildman Harrold Allen & Dixon LLP
LandOfFree
Wastewater trickle tower spraying arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wastewater trickle tower spraying arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wastewater trickle tower spraying arrangement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3440486