SE9001303L - FERTILIZER AND EARTH IMPROVEMENT PRODUCT - Google Patents

FERTILIZER AND EARTH IMPROVEMENT PRODUCT

Info

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
Application number
SE9001303A
Other languages
Swedish (sv)
Other versions
SE9001303D0 (en
SE500631C2 (en
Inventor
Bjoern Romansoff
Sven-Aake Faedmyr
Torsten Israelsson
Original Assignee
Bjoern Romansoff
Sven Aake Faedmyr
Torsten Israelsson
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bjoern Romansoff, Sven Aake Faedmyr, Torsten Israelsson filed Critical Bjoern Romansoff
Priority to SE9001303A priority Critical patent/SE500631C2/en
Publication of SE9001303D0 publication Critical patent/SE9001303D0/en
Publication of SE9001303L publication Critical patent/SE9001303L/en
Publication of SE500631C2 publication Critical patent/SE500631C2/en

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.
SE9001303A 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 SE500631C2 (en)

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)

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