Method and apparatus for denitrification of wastewater

Liquid purification or separation – Processes – Treatment by living organism

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Details

210150, 210247, 210617, 210903, 405 80, 405108, C02F 300

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active

054964725

ABSTRACT:
This invention relates to a method and apparatus of denitrification. The apparatus includes a weir block, a denitrification vessel having a wall surface, and filter media having microorganisms on their surfaces. The weir block may have a convex outer surface which is tangentially adjacent to and preferably contiguous with the upper end of the wall, whose lower end is in contact with the water in the denitrification vessel. The method may include passing the wastewater over the convex surface of the weir block, passing the water over the second surface of the substantially vertical wall and into the denitrification vessel while preferably maintaining substantially laminar flow and limiting the dissolved oxygen in the denitrification vessel, preferably to below about 5 mg/L and more preferably to below about 4 mg/L.

REFERENCES:
patent: 1050930 (1913-01-01), Edge et al.
patent: 1995367 (1935-03-01), Stewart
patent: 2529141 (1947-07-01), Danel
patent: 2762202 (1956-09-01), Ponsar
patent: 3234123 (1966-02-01), Hinde
patent: 3293174 (1966-12-01), Robjohns
patent: 3651607 (1972-03-01), Lee, II
patent: 3709364 (1973-01-01), Savage
patent: 3713543 (1973-01-01), Heaney
patent: 3835038 (1974-09-01), Heaney
patent: 3853752 (1974-12-01), Tymoszczuk
patent: 3970555 (1976-07-01), Savage et al.
patent: 3994803 (1976-11-01), Neff et al.
patent: 4009105 (1977-02-01), Jeris
patent: 4035290 (1977-07-01), Torpey
patent: 4051039 (1977-09-01), Heaney
patent: 4056465 (1977-11-01), Spector
patent: 4064050 (1977-12-01), Heaney et al.
patent: 4159945 (1979-07-01), Savage
patent: 4162153 (1979-07-01), Spector
patent: 4179374 (1979-12-01), Savage et al.
patent: 4212767 (1980-07-01), Daniel
patent: 4332904 (1982-06-01), Kurane et al.
patent: 4351729 (1982-09-01), Witt
patent: 4488967 (1984-12-01), Block et al.
patent: 4488968 (1984-12-01), Hong et al.
patent: 4522722 (1985-06-01), Nicholas
patent: 4545909 (1985-10-01), Atkinson et al.
patent: 4564449 (1986-01-01), Kampers
patent: 4604197 (1986-08-01), Louboutin et al.
patent: 4650585 (1987-03-01), Hong et al.
patent: 4661253 (1987-04-01), Williams
patent: 4681685 (1987-07-01), Sutton et al.
patent: 4756831 (1988-07-01), Menzel et al.
patent: 4780198 (1988-10-01), Crawford et al.
patent: 4800021 (1989-01-01), Desbos
patent: 4816145 (1989-03-01), Goudy, Jr.
patent: 4874519 (1989-10-01), Williamson
patent: 4923606 (1990-05-01), Gresh et al.
patent: 4970000 (1990-11-01), Eppler et al.
patent: 4999111 (1991-03-01), Williamson
patent: 5022993 (1991-06-01), Williamson
patent: 5211847 (1993-05-01), Kanow
patent: 5288407 (1994-02-01), Bodwell et al.
The TETRA DeepBed Denite.RTM. System.
Water Pollution Control Federation Manual Of Practice #8, "Activated Sludge".

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