GB753566A - Improvements in and relating to the stabilisation of urine - Google Patents
Improvements in and relating to the stabilisation of urineInfo
- Publication number
- GB753566A GB753566A GB27797/52A GB2779752A GB753566A GB 753566 A GB753566 A GB 753566A GB 27797/52 A GB27797/52 A GB 27797/52A GB 2779752 A GB2779752 A GB 2779752A GB 753566 A GB753566 A GB 753566A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urine
- added
- salts
- carbon dioxide
- treated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Nitrogen losses in urine, especially during storage thereof, are prevented by passing a gas containing carbon dioxide into the urine, in the absence of oxidizing agents, so that the pH is adjusted to below 7. A suitable source of carbon dioxide is flue gas, and the effect is increased if the urine is additionally mixed with a salt having cations forming insoluble carbonates such as water-soluble calcium salts, suitably calcium chloride, nitrate, and primary or secondary phosphate. The maximum amount of salt added should be about equivalent to the sum of the amount of ammonia formed on decomposition plus the amount of bicarbonate already present. If phosphates are employed they should preferably be added in such amounts as to give the urine a content of 1 to 2 mols. of ammonia per mol. of phosphoric acid. Other salts capable of improving the fertilizing properties of the urine such as potassium salts, may be added. It is preferred to separate the liquid from the precipitate formed when calcium salts are added, to avoid the danger of a reversed reaction. The urine so treated has a low ammonia pressure and may be stored or spread as fertilizer without danger of nitrogen losses. To improve storage in tanks the treated urine may be covered by a thin oil film. U.S.A. Specification 2,072,154 is referred to.ALSO:Nitrogen losses in urine, especially during storage, are prevented by passing carbon dioxide into the urine, in the absence of oxidizing agents, so that the pH is adjusted to below 7. A suitable source of carbon dioxide is flue gas, and the effect is increased if the liquid is additionally mixed with salts having cations forming insoluble carbonates, such as water-soluble calcium salts, suitably calcium chloride, nitrate, and primary or secondary phosphate. The maximum amount of salt added should be equivalent to the sum of ammonia formed on decomposition plus the amount of bicarbonate already present. If phosphates are employed they should preferably be added in such amounts as to give the urine a content of 1 to 2 mols of ammonia per mol of phosphoric acid. Other salts capable of improving the fertilizing properties of the urine, such as potassium salts, may be added. It is preferred to separate the liquid from the precipitate formed when calcium salts are added. The urine so treated has a low ammonia pressure and so may be stored or spread as fertilizer with reduced nitrogen loss. In storage tanks, the treated urine may be covered by a thin film of oil. U.S.A. Specification 2,072,154 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI753566X | 1951-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB753566A true GB753566A (en) | 1956-07-25 |
Family
ID=8556256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27797/52A Expired GB753566A (en) | 1951-11-06 | 1952-11-05 | Improvements in and relating to the stabilisation of urine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB753566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2657212A1 (en) * | 2012-04-23 | 2013-10-30 | Sagterland-Dünger GmbH & Co. KG | Method for the treatment of organic waste materials and composts, especially food remains from biogas systems |
-
1952
- 1952-11-05 GB GB27797/52A patent/GB753566A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2657212A1 (en) * | 2012-04-23 | 2013-10-30 | Sagterland-Dünger GmbH & Co. KG | Method for the treatment of organic waste materials and composts, especially food remains from biogas systems |
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