WO2003011468A1 - A process and system for manure treatment - Google Patents
A process and system for manure treatment Download PDFInfo
- Publication number
- WO2003011468A1 WO2003011468A1 PCT/IL2002/000630 IL0200630W WO03011468A1 WO 2003011468 A1 WO2003011468 A1 WO 2003011468A1 IL 0200630 W IL0200630 W IL 0200630W WO 03011468 A1 WO03011468 A1 WO 03011468A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- manure
- particles
- process according
- steam
- size
- Prior art date
Links
- 210000003608 fece Anatomy 0.000 title claims abstract description 84
- 239000010871 livestock manure Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 22
- 238000011282 treatment Methods 0.000 title description 15
- 239000002245 particle Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims description 22
- 241001465754 Metazoa Species 0.000 claims description 15
- 241000283690 Bos taurus Species 0.000 claims description 6
- 238000009928 pasteurization Methods 0.000 claims description 5
- 244000144972 livestock Species 0.000 claims description 3
- 244000144977 poultry Species 0.000 claims description 3
- 241000272517 Anseriformes Species 0.000 claims description 2
- 241000283707 Capra Species 0.000 claims description 2
- 241000283086 Equidae Species 0.000 claims description 2
- 241001494479 Pecora Species 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000007787 solid Substances 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 238000003973 irrigation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 239000003864 humus Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001332 colony forming effect Effects 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- -1 easily flowing Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000012543 microbiological analysis Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C3/00—Treating manure; Manuring
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
Definitions
- the field of the invention is industrial processes, more particularly, industrial processes for treating manure.
- Animal manure is known to pose a risk of containing pathogenic microorganisms that can be harmful to humans and domestic animals.
- the procedure of disposing of untreated animal manure in open fields can endanger the health of humans, livestock and domestic animals.
- Animal manure is also known to contain plant nutrients that can replace agricultural chemical-fertilizers.
- a common method for the treatment of manure which is described e.g. in Carol Miles et. al., "From End to Beginning", Washington State University Cooperative Extension October 1999 (see: http;//agsyst. wsu.edu/manure.htm) is composting.
- Composting if done properly, eliminates the pathogenic microorganisms but requires substantial time periods, large storage facilities, can cause troublesome odors and can put a substantial financial burden on its use.
- the composted manure forms granule products that have to be mechanically or manually spread for agricultural use.
- Lagoons require relatively large land area and may cause odor and ground water contamination due to seepage problems if not maintained properly.
- the manure in lagoons is subjected to intensive microbiological degradation and separates to overflow water and sludge that are (separately) applied to fields (Biological Resources Engineering Topics, University of Maryland www.inform.umd.edu, Geosynthetic Clay Liners for Animal Residuals Containment. By: James T. Olsta, Anaerobic and Aerobic Treatment of Animal Manure. A Reiew. By Jose 1 R. Bicudo et al. In: Animal Residuals Management Conference. November 12-14, 2000. Kansas City , Missouri).
- Animal Manure is often disposed untreated. To reduce nutrient loss and environmental contamination the disposal is often performed by using machinery that either sprays or injects manure on, or into the soil. See, e.g., Mark Dougherty et. al., Liquid manure application systems design manual. Northeast Regional Agricultural Engineering Service (NRAES), 1998 (ISBN 0-935817-24-7).
- the machinery requires the passage of the manure through pumps, tubes and nozzles.
- untreated manure especially cattle manure, causes blockages in the tubes and an uneven spread of the disposed manure as it comes out of the dispensing machinery.
- US 5,538,529 relates to The invention relates to a nutrient rich humus material produced by a process wherein solids in an aqueous slurry of the excrement are precipitated in a solids ecoreactor, the treated slurry is passed to a bioreactor wherein soluble phosphorus is precipitated with metallic salts, the slurry is aerobically and anaerobically treated to form an active biomass that actively bioconverts remaining soluble phosphorus and the aqueous slurry containing bioconverted phosphorus is recycled to said solids ecoreactor wherein the at least a portion of slurry is bioconverted and recovered as a beneficial humus material.
- US 5,755,852 relates to a nutrient rich humus material produced by a process wherein solids in an aqueous slurry of animal excrement are settled or precipitated in a solids ecoreactor, the slurry may be treated before and/or after settlement in the ecoreactor by passing to a bioreactor wherein soluble phosphorus may be precipitated with metallic salts, the slurry is aerobically and anaerobically treated to form an active biomass that actively bioconverts remaining soluble phosphorus, nitrogen and organics, and the aqueous slurry containing bioconverted phosphorus is recycled to said solids ecoreactor and/or discharged, and at least a portion of slurry is bioconverted and recovered as a beneficial humus material.
- drip-irrigation In order to rmnimize the use of irrigating water drip-irrigation is commonly used. Efficient use of chemical fertilizers can be obtained by distribution through drip irrigation systems. The use of chemical fertilizers requires water dissolvent or the formation of stable suspensions of fine fertilizer-particles that will not clog the drip- irrigation systems. Animal manure, rich with plant nutrients, could be utilized as fertilizers using drip-irrigation systems if animal manure could be processed to form very fine particle stable immultions.
- the present invention relates to a process for treating manure comprising the steps of: a) mechanically crashing of manure particles; b) separating particles having a particles size less than a size which is between 5 to 10mm from particles having a particles size greater than said size; and c) homogenizing and pasteurizing the smaller particles resulting from step (b) using a steam-transfuser.
- the present invention relates to an industrial system useful in treating animal manure comprising a manure feeder which is connected to the input section of a manure crushing unit; the output section of said crushing unit is connected to the input section of a separating unit; one output section of the separating unit is connected to the input section of a steam-transfuser.
- Fig. 1 schematically represents a manure treatment system according to the present invention.
- manure is fed into a crushing unit (1) where it is crushed.
- the crushed material is separated according to particle size in the separating unit (2).
- the larger particles are disposed (5) and the smaller particles are fed (4) into the steam-transfuser (3); to which steam is introduced (6).
- a pre-treatment involving the removal of large particles that are not integral part of the manure such as straw, strings and rocks is applied. This could be achieved by sieving raw manure through sieves with holes typically in the order of 5- 10cm.
- the manure treated according to the present invention is selected from the group of livestock such as cattle, poultry, geese, sheep, goats, horses and hog manure.
- the crushing of step (a) is performed by using one or more grinding methods selected from the group consisting of ball-mill, rod-mill, hammer-mill roll-mill and other grinding device that will be able to disintegrate manure lumps and chunks to particles of a size ranging under 10mm.
- step (b) comprises separating particles having a particles size of less than about 5mm from particles having a particles size of more than about 5mm.
- step (b) comprises separating particles having a particles size of less than about 6mm from particles having a particles size of more than about 6mm.
- the separation of particles in step (b) is performed by using one or more methods selected from the group consisting of a sieve, a net and a porous surface.
- Particle size' is defined as to the largest measurable dimension in any distinct particle.
- steam treatment may be employed in the process of the present invention, however, according to a preferred embodiment, the steam-transfuser used is described in detail in published international patent application No. WO 99/28022 (Pekerman). Said publication is incorporated herein by reference.
- the manure In the course of contacting steam and manure in the steam-transfuser the manure is warmed.
- two goals may be achieved: homogenizing, and pasteurizing.
- the goal of pasteurizing may be typically achieved by the latent heat of the steam, induced by the transfuser, by the heat of a different source of heat or by a combination thereof.
- the pasteurization may be achieved by passing the manure through the steam-transfuser in more than one cycle.
- the temperature of the processed manure depends on the temperature of the manure entering the process and the ratio between the amounts of steam and manure employed in the process. Elevated temperatures can be achieved by circulating manure more than once through the process.
- the temperature of the manure following the processing is between 50°C and 100°C.
- the processed manure slurry is preferably collected in a thermally insulated receiver.
- the pasteurization is performed by maintaining the slurry manure at a temperature of between about 70°C and about 100°C for at least one hour.
- the pasteurization is performed by maintaining the slurry manure at a temperature of about 72°C to about 78°C for at least one hour.
- the process of the present invention provides a pasteurized, homogenized and stable manure slurry that can be used for all kinds of plant watering including on-soil spreading, injecting and sprinkling.
- a fine sieve such as 100 mesh
- the process will enable the use of raw manure in drip-irrigation systems.
- the liquidated manure remains as stable slurry for over 2 months when stored in a closed, unstirred container.
- the stability period may also vary in an unexpected manner.
- the liquidated manure may be pasteurized by collecting the processed manure to a thermally insulated receiver and keeping it there for at least at 70°C for at least one hour.
- the process of the present invention provides a solution to the contamination problem, and also ensures the free flow of manure through tubes and an even spread of manure suspension when applied with distributing machinery.
- the integration of the injected steam with the manure in the transfuser-configuration causes a radical change in the physical characteristics of the manure, forming a homogenized suspension, easily flowing, slurry.
- Cattle manure processed according to the present invention typically showed a decreased number of coliform bacteria (colony forming units, CFU, counted on VRBA medium) from 6.9 x 10 3 per ml to the limit of detection, less than 10 bacteria per ml.
- the manure slurry was stored in plastic barrels with loose lids, in shaded, outdoors, conditions. After more than a month of storage the slurry did not form a considerable sedimentation layer (the slurry kept its emulsion characteristics) and no fowl odor was emitted from the barrels.
- Dairy cattle manure was collected below the crust of collected manure under the slotted-floor of a barn in kibbutz Sha'ar-Ha'amakirn, ISRAEL.
- the manure was ground in batch lots using a ball-mill utilizing steel-balls of assorted sizes (up to a diameter 0.3cm). The grinding was carried till a uniform paste was observed.
- the manure paste was passed through a mechanical vibrating steel-sieve with holes of a diameter of 2.8 mm.
- the percentage of solids in the raw manure prior to sieving was: 13.6%.
- the percentage of solids after the steam-transfuser treatment was 9.5%.
- the manure paste was passed through the steam-transfuser. Upon exiting the transfuser, the manure's temperature was 75°C.
- the treated manure was collected and stored in 20 Uter plastic barrels, with loosely closed lids. Samples were taken for chemical and microbiological analysis prior the steam-transfuser treatment and one hour thereafter, while the temperature in the barrels was above 70°C.
- the coliform bacteria count decreased from 6.9x10 3 per ml down to the limit of detection, i.e. less than 10 bacteria per ml.
- the total w/w nitrogen concentration of nitrogen prior to the steam-transfuser treatment was 0.48% .
- the concentration after the treatment was found to be 0.36%.
- the manure after the steam-transftiser treatment was homogenous and free flowing and remained so for two months when kept in barrels in a shaded outdoor shed.
- Example 3 Using the same technology out-lined in Example 1, the cattle manure was enriched with 6% (w/w) fresh hen-house poultry manure obtained from kibbutz Geva ISRAEL. The total w/w nitrogen concentration of nitrogen prior to the steam-transfuser treatment was 0.67 %. The concentration after the treatment was found to be 0.55 %. The manure after the steam-transfuser treatment was homogenous and free flowing and remained so for two months when kept in barrels in a shaded outdoor shed. Example 3
- Transfuser-treated dairy-cattle manure slurry was sieved through a 140 mesh sieve, diluted to a 6% water suspension and passed through 20 dripping nipples at a rate of 2 liters per hour for two hours.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL14466301A IL144663A0 (en) | 2001-07-31 | 2001-07-31 | A process and system for manure treatment |
IL144663 | 2001-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003011468A1 true WO2003011468A1 (en) | 2003-02-13 |
Family
ID=11075657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL2002/000630 WO2003011468A1 (en) | 2001-07-31 | 2002-07-31 | A process and system for manure treatment |
Country Status (2)
Country | Link |
---|---|
IL (1) | IL144663A0 (en) |
WO (1) | WO2003011468A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823877A (en) * | 1972-06-05 | 1974-07-16 | J Poggie | Apparatus and process for reducing waste organic materials into clean, sterilized powder, meal or flakes |
US6464155B1 (en) * | 1998-06-24 | 2002-10-15 | Forrest L. Robinson | Method of processing animal waste and parts |
-
2001
- 2001-07-31 IL IL14466301A patent/IL144663A0/en unknown
-
2002
- 2002-07-31 WO PCT/IL2002/000630 patent/WO2003011468A1/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3823877A (en) * | 1972-06-05 | 1974-07-16 | J Poggie | Apparatus and process for reducing waste organic materials into clean, sterilized powder, meal or flakes |
US6464155B1 (en) * | 1998-06-24 | 2002-10-15 | Forrest L. Robinson | Method of processing animal waste and parts |
Also Published As
Publication number | Publication date |
---|---|
IL144663A0 (en) | 2002-05-23 |
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