Method and systems for isolation and/or separation of target products from animal produced waste streams
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-025/00
B01D-029/00
C05B-009/00
C05B-017/02
C05G-003/00
C02F-001/00
B01D-061/14
C02F-103/20
출원번호
US-0735276
(2015-06-10)
등록번호
US-10005697
(2018-06-26)
발명자
/ 주소
Vander Hoff, Mark
Benson, Todd
Pugh, Marc
Bell, Jason
출원인 / 주소
SMARTFLOW TECHNOLOGIES, INC.
대리인 / 주소
Fuierer, Tristan A.
인용정보
피인용 횟수 :
0인용 특허 :
38
초록▼
The present invention relates to separation methods and systems for converting high concentrations of animal wastes into useful products, wherein the separation of the desired useful products is conducted with a cross-flow filtration system having the ability to the separate desired useful energy an
The present invention relates to separation methods and systems for converting high concentrations of animal wastes into useful products, wherein the separation of the desired useful products is conducted with a cross-flow filtration system having the ability to the separate desired useful energy and/or products from both viscous and non-viscous medium.
대표청구항▼
1. A process for treating manure in order to produce a liquid fertilizer and a concentrated viscous fertilizer, the process comprising: providing a manure medium;separating the manure medium into the liquid fertilizer and the concentrated viscous fertilizer by passing the manure medium through at le
1. A process for treating manure in order to produce a liquid fertilizer and a concentrated viscous fertilizer, the process comprising: providing a manure medium;separating the manure medium into the liquid fertilizer and the concentrated viscous fertilizer by passing the manure medium through at least one cross-flow filtration cassette comprising: an array of sheet members of generally rectangular and generally planar shape with main top and bottom surfaces, wherein the sheet members include in sequence in said array a first retentate sheet, a first filter sheet, a permeate sheet, a second filter sheet, and a second retentate sheet, wherein each of the first filter sheet, the permeate sheet, and the second filter sheet in said array has at least one inlet basin opening at one end thereof and at least one outlet basin opening at an opposite end thereof, wherein each of the sheet members in the array has at least one permeate passage opening at longitudinal side margin portions of the sheet members, wherein each of the first and second retentate sheets have a multiplicity of channel openings extending longitudinally between the inlet and outlet basin openings of the first filter sheet, the permeate sheet, and the second filter sheet, and said retentate sheets are bonded to an adjacent filter sheet about peripheral end and side portions thereof, wherein the inlet basin openings, outlet basin openings, and permeate passage openings are in register with one another and the permeate passage openings of each of the retentate sheets are circumscribingly bonded to the adjacent filter sheet, with a central portion of each of the retentate sheets and adjacent filter sheets being unbonded to permit permeate contacting the retentate sheet to flow through the filter sheet to the permeate sheet, wherein the manure medium is flowed over the first and second filter sheets at a shear force that opposes accumulation of solids on the surface of the first and second filter sheets; and wherein the liquid fertilizer is in a permeate stream and the concentrated viscous fertilizer is in a retentate stream, wherein the retentate stream comprises about 10% to about 80% solids, and wherein the permeate stream is NH3/NH4 rich and the retentate stream is rich in phosphorus. 2. The process of claim 1, further comprising drying the concentrated viscous fertilizer to minimize water content thereby providing a solid fertilizer. 3. The process according of claim 1, wherein the manure medium comprises urine and fecal matter from dairy cattle, beef cattle, swine, sheep, goats, poultry, horses, rabbits or other confined animals. 4. The process according to claim 1, further comprising separating target products from either the liquid fertilizer or concentrated viscous fertilizer, wherein the target products are selected from nitrogen, potassium, or phosphorus. 5. The process of claim 3, wherein the manure medium further comprises wasted feed, bedding, spilled water, flush water, or wash water. 6. The process of claim 1, wherein the manure medium is about 80% to about 95% liquid by weight. 7. The process of claim 5, wherein the manure medium is pretreated before introduction into the at least one cross-flow filtration cassette, wherein the pretreating comprises treatment by a screw press, centrifuge, vibrating screen, mesh screening, belt filter, or hydrocyclone to remove unwanted large material. 8. The process of claim 1, wherein the manure medium is pretreated in an anaerobic digester. 9. The process of claim 1, wherein the liquid fertilizer is further treated with MgCl2 to cause the precipitation of struvite (MgNH4PO4.6H2O). 10. The process of claim 1, wherein the concentrated viscous fertilizer is further treated with ferric chloride (FeCl3), ferric sulfate (FeSO4), calcium hydroxide (lime), aluminum sulfate (alum) or aluminum chloride (AlCl3) for phosphorus binding and the formation of common phosphorus salts. 11. The process according to claim 1, wherein the concentration of phosphorus in the permeate stream relative to the concentration of phosphorus in the retentate stream can be optimized by changing a material of the first and second filter sheets.
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