Gas removal from deep-bed filters

Details Gas removal from deep-bed filters Gas removal from deep-bed filters

1975-11-10

1976-07-20

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 82, 210274, 210279, B01D 2324, C02C 1114

Patent

active

039705552

ABSTRACT:
Gas bubbles, and in particular nitrogen gas bubbles, generated during the denitrification of treated wastewater in a deep-bed filter are removed by venting them from a level below the surface of the filter bed. Gas removal may be enhanced by introducing pressurized air or water into the lower portion of the filter bed to dislodge the gas bubbles from the filter media and drive them upward where they can be vented to the atmosphere. Alternatively, pressurized air or water may be introduced into a vent pipe located below the surface of the filter bed to drive the gas bubbles up through the surface of the filter bed.

REFERENCES:
patent: 3276585 (1966-10-01), Kalinske
patent: 3306447 (1967-02-01), Medeiros
patent: 3441503 (1969-04-01), Smith
patent: 3709364 (1973-01-01), Savage
patent: 3804255 (1974-04-01), Speece
patent: 3824185 (1974-07-01), Caldwell et al.
patent: 3829377 (1974-08-01), Hashimoato

Affiliated with

Also associated with

Rating

Gas removal from deep-bed filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas removal from deep-bed filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas removal from deep-bed filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-555291