Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1994-07-27
1996-10-01
Drodge, Joseph W.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
134111, 210167, 2101951, 210712, 210760, 210805, 210806, C02F 152, C02F 178
Patent
active
055608310
ABSTRACT:
A method and apparatus for washing agricultural products generates and purifies a wastewater. The wastewater is fed to a first coagulation compartment. A first compartment overflow contains a relatively higher amount of the coagulant and of coagulated contaminants than does the first compartment underflow. The first compartment underflow is fed to at least a second coagulation compartment. A compartment overflow and a compartment underflow are provided in the second compartment and in any successive compartments. The compartment overflow contains a relatively higher amount of the coagulant and of the contaminants than does the compartment underflow. A source of ozone is generated by an ozone generator. The compartment underflow from the last of the coagulation compartments is treated with ozone so that ozonized final compartment underflow provides a source of de-contaminated wastewater. The final compartment underflow is recycled to wash the agricultural products, and the final compartment overflow is again treated with coagulant and processed to remove contaminants.
REFERENCES:
patent: 1696704 (1928-12-01), Zellner
patent: 3855124 (1974-12-01), Lapidot
patent: 3945918 (1976-03-01), Kirk
patent: 4028233 (1977-06-01), Quentin et al.
patent: 4108768 (1978-08-01), Sebelik et al.
patent: 4224148 (1980-09-01), Lindman et al.
patent: 4340473 (1982-07-01), Lindman et al.
patent: 4425238 (1984-01-01), Degen et al.
patent: 4659462 (1987-04-01), Chapman
patent: 4744903 (1988-05-01), McAninch et al.
patent: 4744904 (1988-05-01), McAninch et al.
patent: 4790943 (1988-12-01), Dunn et al.
patent: 4966713 (1990-10-01), Keys et al.
patent: 5053140 (1991-10-01), Hurst
patent: 5059317 (1991-10-01), Marius et al.
patent: 5071587 (1991-12-01), Perman
patent: 5077314 (1991-12-01), Philips et al.
patent: 5097556 (1992-03-01), Engel et al.
patent: 5178755 (1993-01-01), LaCrosse
patent: 5181399 (1993-01-01), Engel et al.
patent: 5207921 (1993-05-01), Vincent
patent: 5238579 (1993-08-01), Shibley
patent: 5256299 (1993-10-01), Wang et al.
David Sheets, Gonna Wash That Waste Out, The Tribune, Dec. 29, 1989, at B4, B8.
Brad Tukey, Overview of Ozone Use at Snokist Growers, Washington State University Tree Fruit Postharvest Journal, vol. 4, No. 1 (Jun. 1993).
Declaration of Donald H. Bladen.
Bladen Donald H.
Nunn Paul J.
Nunn Paul P.
Drodge Joseph W.
Water Technology Resources, Inc.
LandOfFree
Method and apparatus for treating water used for washing agricul does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for treating water used for washing agricul, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for treating water used for washing agricul will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1500011