Charles D Blumenschein

7163629, Jan 16, 2007

Jul 28, 2004

10/901342

Mohammad Abu-Orf - Pitman NJ, US
Charles D. Blumenschein - Pittsburgh PA, US
John T. Novak - Blacksburg VA, US
Christopher D. Muller - Blacksburg VA, US
Mark Laquidara - Framingham MA, US

Virginia Tech Intellectual Properties, Inc. - Blacksburg VA

C02F 3/28
C02F 1/36

210603, 210614, 210173, 2101953, 210259, 210748, 210916

Enhanced wastewater treatment utilizing directed energy to promote degradation of sludge is disclosed. The directed energy is delivered in a stream circulating to and from an anaerobic digester. The directed energy incorporates mechanical shear energy, ultrasonic energy, and/or hydraulic shear energy. Characterization of odor potential is further disclosed involving the analyzing volatilized sulfur-containing species from dewatered sludge. The odor potential can be used to control operation of the wastewater treatment by controlling the directed energy and/or polymer dose.

7351391, Apr 1, 2008

May 16, 2005

11/129639

Douglas R. Olsen - Pawling NY, US
Charles D. Blumenschein - Pittsburgh PA, US

C01B 7/07
C01B 17/90
C01G 49/00
C23G 1/02

423488, 423146, 423522, 423531, 423558, 423DIG 1, 423DIG 2, 134 3

A system and method of economically converting a spent first pickling acid solution that contains hydrochloric acid, water and ferrous chloride into a suitable second pickling solution. Sulfuric acid is added to the first pickling acid solution. This produces a regeneration solution. In the regeneration solution, the sulfuric acid reacts with said ferrous chloride and water to produce ferrous sulfate heptahydrate and hydrochloric acid. The regeneration solution is cooled to promote precipitation of the ferrous sulfate heptahydrate from the regeneration solution, therein creating ferrous sulfate heptahydrate crystals and a second pickling acid solution. The second pickling acid solution contains both hydrochloric acid and sulfuric acid. The ferrous sulfate heptahydrate crystals are separated from second pickling solution. The ferrous sulfate heptahydrate is sold commercially and the second pickling acid solution is used to directly pickle ferrous metal.

7608190, Oct 27, 2009

Nov 14, 2008

12/271506

Kashi Banerjee - Moon Township PA, US
Charles D. Blumenschein - Pittsburgh PA, US

N.A. Water Systems, LLC - Moon Township PA

C02F 3/00

210663, 210665, 210688, 210724

A method for reducing barium concentration in waste streams. Hydrous manganese oxide (HMO) is formed in solution/slurry and mixed with water containing barium such that the hydrous manganese oxide exhibits a negative charge at a desired pH. Barium from the water is adsorbed onto the negatively charged HMO surface. The HMO with adsorbed barium is separated from the water, producing treated effluent having a reduced barium concentration.

7828976, Nov 9, 2010

Jun 22, 2007

11/767010

Kashi Banerjee - Moon Township PA, US
Charles D. Blumenschein - Pittsburgh PA, US
John Charles Schrader - Pittsburgh PA, US

I. Kruger, Inc. - Cary NC

C02F 1/52
C02F 1/58

210631, 210711, 210713, 210714, 210725, 210727, 210906

A process for removing phosphorus from wastewater wherein an iron or aluminum salt is added to the wastewater. The iron or aluminum salt results in the precipitation of certain iron or aluminum species that include phosphorus adsorption sites. These iron or phosphorus species are settled and become a part of sludge produced in the course of the wastewater treatment process. By recycling substantial portions of the sludge, the concentration of these iron or aluminum species in the wastewater is increased. This increased concentration results in the presence of large quantities of unused phosphorus adsorption sites that attract and adsorb phosphorus, resulting in phosphorus being removed from the wastewater.

8147695, Apr 3, 2012

Oct 26, 2010

12/911914

Kashi Banerjee - Moon Township PA, US
Charles D. Blumenschein - Pittsburgh PA, US
John Charles Schrader - Pittsburgh PA, US

I. Kruger Inc. - Glen Ellyn IL

C02F 3/00
C02F 1/52
C02F 1/58

210614, 210631, 210709, 210711, 210713, 210714, 210727, 210906

A process for removing phosphorus from wastewater wherein an iron or aluminum salt is added to the wastewater. The iron or aluminum salt results in the precipitation of certain iron or aluminum species that include phosphorus adsorption sites. These iron or phosphorus species are settled and become a part of sludge produced in the course of the wastewater treatment process. By recycling substantial portions of the sludge, the concentration of these iron or aluminum species in the wastewater is increased. This increased concentration results in the presence of large quantities of unused phosphorus adsorption sites that attract and adsorb phosphorus, resulting in phosphorus being removed from the wastewater.

8454831, Jun 4, 2013

Mar 8, 2011

13/042652

Phillippe Sauvignet - Saint-Etienne-en-Cogles, FR
Kashi Banerjee - Moon Township PA, US
Charles D. Blumenschein - Pittsburgh PA, US

Veolia Water Solutions & Technologies Support - Saint Maurice

C02F 3/06
C02F 3/08
C02F 1/52

210616, 210617, 210619, 210631, 210711, 210713, 210714

A method for treating wastewater comprises biologically treating the wastewater in a fixed-biomass biological reactor and then treating the wastewater in a ballasted flocculation system. The ballasted flocculation system produces a clarified effluent and sludge containing inert granular material having biomass accumulated thereon and suspended solids. The inert granular material having biomass accumulated thereon is separated from the suspended solids and then cleaned with a cleaning solution. After separating the biomass from the cleaned inert granular material, the cleaned inert granular material is recycled for use in the ballasted flocculation system.

20020005210, Jan 17, 2002

Dec 19, 2000

09/740465

Douglas Olsen - Pawling NY, US
Charles Blumenschein - Pittsburgh PA, US

C21B011/00
C23G001/02

134/003000, 423/150300, 134/028000, 134/109000, 134/010000

Apparatus and method for regenerating spent pickling liquor from the acid pickling of a metal are disclosed. Acid pickling of a metal uses a first acid and forms a spent pickling liquor (SPL). A second acid added to the spent pickling liquor, under specific low temperatures produces a metal salt of the second acid. The metal salt of the second acid is crystallized and removed from a regenerated first acid. In one aspect, hydrochloric acid is regenerated from a pickling process for iron or steel, using sulfuric acid as the second acid, and ferrous sulfate heptahydrate crystals are produced. Regenerated hydrochloric acid is recycled to the acid pickling process.

20020088758, Jul 11, 2002

Nov 2, 2001

10/001208

Charles Blumenschein - Pittsburgh PA, US
Kashi Banerjee - Moon Township PA, US

C02F001/52

210/712000, 210/723000

The present invention is directed to a method and apparatus for the treatment of water and wastewater. In one embodiment, a method of treating water according to the present invention includes mixing sludge and precipitant with the water to be treated, mixing ballast with the water, and separating the water into treated water and sludge. Some or all of the separated sludge may be recycled for mixing with the precipitant and water to be treated.