Liquid purification or separation – Constituent mixture variation responsive
Patent
1985-12-30
1989-03-28
Wyse, Tom
Liquid purification or separation
Constituent mixture variation responsive
210243, 204DIG11, 250435, 250437, 4221863, C02F 132, G01N 2101
Patent
active
048161454
ABSTRACT:
The disinfection of water or other fluid is accomplished by passing a stream of the fluid through a laser beam which radiates light in the ultraviolet range. A gas pulsed laser is disclosed which produces a beam having a substantial width and depth and a measurable length, as measured in the direction of fluid flow. The laser is positioned out of contact with the stream but with its beam filling the cross-section of the stream of water which can flow through a flume or over a weir. Flow meters are provided which adjust the rate of pulsing of the laser, and therefore the intensity of the ultraviolet light, in relation to changes in flow. Sensors are also provided to adjust the intensity of the laser for changes in turbidity or organic content of the fluid. In one embodiment the fluid flows through a spiral tube which directs the fluid to and fro through the laser beam. In another embodiment, the length of the laser beam is adjusted by adjusting the distance between the laser beam source and a diverging lens. The laser beam may be reflected off of mirrored surfaces, and utilizes the scattering of the ultra-violet light produced by suspended particles in the fluid being treated.
REFERENCES:
patent: 3757248 (1973-09-01), Small
patent: 4042509 (1977-08-01), Bowen
patent: 4115280 (1978-09-01), Pratt, Jr.
patent: 4204956 (1980-05-01), Flatow
patent: 4265747 (1981-05-01), Copa et al.
patent: 4273660 (1981-06-01), Beitzel
patent: 4274970 (1981-06-01), Beitzel
patent: 4400270 (1983-08-01), Hillman
patent: 4704527 (1987-11-01), Prodi
patent: 4753778 (1988-06-01), Hoffmann
"Scientific-American", vol. 228, No. 6, Jun. 1973, pp. 112-115.
"Scientific-American", vol. 230, No. 6, Jun. 1974, pp. 122-127.
Autotrol Corporation
Wyse Tom
LandOfFree
Laser disinfection of fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser disinfection of fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser disinfection of fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1657366