Christopher M Tubbs

US Patent:

20130068696, Mar 21, 2013

Filed:

Mar 21, 2012

Appl. No.:

13/425656

Inventors:

Robert P. Carnahan - Temple Terrace FL, US
Christopher C. Tubbs - Temple Terrace FL, US
Nidal Samad - Merritt Island FL, US

Assignee:

Farm Pilot Project Coordination, Inc. - Tampa FL

International Classification:

C02F 1/52

US Classification:

210707, 210192, 210704

Abstract:

A method and system of treatment of agricultural and industrial wastewaters that contain high concentrations of suspended solids, nitrogen, and phosphorus compounds is disclosed. The method and system includes pre-treating the wastewater, controlling the amount of coagulants used, and controlling the mean velocity used for mixing, surface loading rate, and solids loading rate. The method and system functions as a sedimentation unit and gas flotation unit (solid/liquid separator). The pH of the effluent wastewater is stabilized within the separator by ensuring that there is sufficient alkalinity to buffer the wastewater. Sufficient gas is produced in the coagulation reactions to float and concentrate the solids, which results in as high as 99 percent reduction in suspended solids, a 96 percent reduction of the phosphorus concentration, and a 50 percent reduction of the nitrogen concentration in the effluent from the separator.

US Patent:

20170066671, Mar 9, 2017

Filed:

Nov 18, 2016

Appl. No.:

15/355712

Inventors:

- Tampa FL, US
Christopher C. TUBBS - Temple Terrace FL, US
Nidal SAMAD - Merritt Island FL, US

International Classification:

C02F 9/00
B30B 9/24
B01D 25/12
B30B 9/12
B01D 21/01
B01D 21/00

Abstract:

A method and system of treatment of agricultural and industrial wastewaters that contain high concentrations of suspended solids, nitrogen, and phosphorus compounds is disclosed. The method and system includes pre-treating the wastewater, controlling the amount of coagulants used, and controlling the mean velocity used for mixing, surface loading rate, and solids loading rate. The method and system functions as a sedimentation unit and gas flotation unit (solid/liquid separator). The pH of the effluent wastewater is stabilized within the separator by ensuring that there is sufficient alkalinity to buffer the wastewater. Sufficient gas is produced in the coagulation reactions to float and concentrate the solids, which results in as high as 99 percent reduction in suspended solids, a 96 percent reduction of the phosphorus concentration, and a 50 percent reduction of the nitrogen concentration in the effluent from the separator.