SE9001303L - FERTILIZER AND EARTH IMPROVEMENT PRODUCT - Google Patents
FERTILIZER AND EARTH IMPROVEMENT PRODUCTInfo
- Publication number
- SE9001303L SE9001303L SE9001303A SE9001303A SE9001303L SE 9001303 L SE9001303 L SE 9001303L SE 9001303 A SE9001303 A SE 9001303A SE 9001303 A SE9001303 A SE 9001303A SE 9001303 L SE9001303 L SE 9001303L
- Authority
- SE
- Sweden
- Prior art keywords
- lime
- sand
- approximately
- sludge
- fertilizer
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
- C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pest Control & Pesticides (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The materials used comprise sludge from a sewage works and at least 10 wt.% lime which itself contains at least 20 wt.% calcium carbonate. Where sand is also added, the proportions consist of 10 - 30 wt.% sludge, 10 - 30 wt.% lime, and 40 - 80 wt.% sand. - The materials are first roughly mixed, and the resultant mixt. is allowed to rest and mature for approximately 3 - 8 weeks, during which time the sludge is absorbed by the lime and sand. Then, the mixt. is treated in an earth mill to obtain a homogeneous final product. The mill works with flails which rotate at a speed of approximately 700 rev/min., spring-loaded counter tools maintaining a distance between them and the flails of approximately 65 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9001303A SE500631C2 (en) | 1990-04-10 | 1990-04-10 | Fertiliser medium and earth improvement prod. - comprises slurry from sewage treatment works with the addn. of chalk and opt. sand |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9001303A SE500631C2 (en) | 1990-04-10 | 1990-04-10 | Fertiliser medium and earth improvement prod. - comprises slurry from sewage treatment works with the addn. of chalk and opt. sand |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9001303D0 SE9001303D0 (en) | 1990-04-10 |
SE9001303L true SE9001303L (en) | 1991-10-11 |
SE500631C2 SE500631C2 (en) | 1994-08-01 |
Family
ID=20379144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9001303A SE500631C2 (en) | 1990-04-10 | 1990-04-10 | Fertiliser medium and earth improvement prod. - comprises slurry from sewage treatment works with the addn. of chalk and opt. sand |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE500631C2 (en) |
-
1990
- 1990-04-10 SE SE9001303A patent/SE500631C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9001303D0 (en) | 1990-04-10 |
SE500631C2 (en) | 1994-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |