Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2005-04-05
2005-04-05
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Treatment by living organism
C210S612000, C210S613000, C210S170050, C210S175000, C210S757000
Reexamination Certificate
active
06875355
ABSTRACT:
A denitrification system for denitrified wastewater or nitrified water treatment using a detergent or detergent-like compound comprising available carbon. The system comprises a plurality of interconnected tanks including a mixing tank which feeds detention tanks which in combination provide a detention time period for the effluent. A controller determines the amount of detergent dispensed into the mixing tank in accordance with the measured volume of effluent to be treated. The mixing tank comprises a heater for maintaining the nitrified effluent temperature above 50 degrees F. An optional line filter can be added to the output of the system for further reducing organic nitrogen concentration. An alternate embodiment comprises passing the final denitrified effluent through a pump chamber for pumping of the effluent to a sand filter capable of reducing bacterial populations.
REFERENCES:
patent: 2536196 (1951-01-01), MacLeod
patent: 4039438 (1977-08-01), Anderson
patent: 4159945 (1979-07-01), Savage
patent: 4225430 (1980-09-01), Bosman
patent: 4576717 (1986-03-01), Collin et al.
patent: 4892658 (1990-01-01), Martin et al.
patent: 4917536 (1990-04-01), Glasser
patent: 5185080 (1993-02-01), Boyle
patent: 5190655 (1993-03-01), Karlsson
patent: 5211847 (1993-05-01), Kanow
patent: 5318699 (1994-06-01), Robertson et al.
patent: 5342522 (1994-08-01), Marsman et al.
patent: 5588777 (1996-12-01), Laak
patent: 5597264 (1997-01-01), Laak
patent: 5676828 (1997-10-01), Kallenbach et al.
patent: 5863435 (1999-01-01), Heijnen et al.
patent: 5908555 (1999-06-01), Reinsel et al.
patent: 5951203 (1999-09-01), Laak
patent: 6004522 (1999-12-01), England
patent: 6284545 (2001-09-01), Warburton et al.
patent: 6634167 (2003-10-01), Toshioka et al.
Kenny Michael
McGrath Michael B.
Barry Chester T.
Pearson, Jr. John H.
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