DK2429674T3 - Phosphatudvinding fra kloakslam. - Google Patents

Phosphatudvinding fra kloakslam. Download PDF

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Publication number
DK2429674T3
DK2429674T3 DK10720568.4T DK10720568T DK2429674T3 DK 2429674 T3 DK2429674 T3 DK 2429674T3 DK 10720568 T DK10720568 T DK 10720568T DK 2429674 T3 DK2429674 T3 DK 2429674T3
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Denmark
Prior art keywords
sewage sludge
suspending agent
process according
suspension
carbon dioxide
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DK10720568.4T
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English (en)
Inventor
Rüdiger Wissemborski
Rainer Schnee
Rainer Wallwitz
David Kümmet
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Chem Fab Budenheim Kg
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Publication of DK2429674T3 publication Critical patent/DK2429674T3/da

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0403—Solvent extraction of solutions which are liquid with a supercritical fluid
    • B01D11/0407—Solvent extraction of solutions which are liquid with a supercritical fluid the supercritical fluid acting as solvent for the solute
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0203—Solvent extraction of solids with a supercritical fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0288—Applications, solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0492—Applications, solvents used
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/26—Treatment of water, waste water, or sewage by extraction
    • 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
    • C02F11/002—Sludge treatment using liquids immiscible with water
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B15/00—Organic phosphatic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)
  • Processing Of Solid Wastes (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Removal Of Specific Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (12)

1. Fremgangsmåde til indvinding af phosphat fra kloakslamsprodukter gennem ekstraktion, i hvilken en suspension fremstilles af kloakslamsprodukter i vand, alkohol, vand/alkohol-blanding eller vandig opløsning, gasformig kuldioxid (C02) eller superkritisk kuldioxid (scC02) indføres som ekstraktionsmiddel i suspensionen af kloakslamsprodukterne, ikke opløste faste stoffer adskilles fra det væskeformige suspenderingsmiddel, kuldioxid adskilles fra suspenderingsmidlet og det i suspenderingsmidlet opløste phosphat udfældes og adskilles fra suspenderingsmidlet.
2. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at suspenderingsmidlet til fremstilling af suspensionen af kloakslamsproduktet indeholder et eller flere alkoholer i en mængde fra 0,1 til 50 vægt-%, fortrinsvis 1 til 10 vægt-%, særligt foretrukket 1 til 5 vægt-%, baseret på mængden af det væskeformige suspenderingsmiddel, hvor den ene alkohol eller de flere alkoholer fortrinsvis er valgt fra methanol, ethanol og isopropanol.
3. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at suspenderingsmidlet til fremstilling af suspensionen af kloakslamsproduktet yderligere indeholder én eller flere syrer i en mængde fra 0,001 til 80 vægt-%, fortrinsvis 0,01 til 30 vægt-%, særligt foretrukket 0,1 til 10 vægt-%, baseret på mængden af det væskeformige suspenderingsmiddel, hvor den ene syre eller de flere af syrer fortrinsvis er valgt fra organiske mono- og dicarboxylsyrer og uorganiske syrer, fortrinsvis HCI og FI2SO4.
4. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at suspensionen indeholder kloakslamsproduktet ved fremstillingen af suspensionen i en mængde fra 0,1 til 60 vægt-%, baseret på mængden af det væskeformige suspenderingsmiddel.
5. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at gasformig kuldioxid (C02) indføres som ekstraktionsmiddel i suspensionen af kloakslamsproduktet.
6. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at kuldioxid indføres i den vandige suspension af kloakslamsproduktet som ekstraktionsmiddel ved et tryk på 0,1 til 200 bar, fortrinsvis på 1 til 100 bar, særligt foretrukket på 5 til 10 bar.
7. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at suspensionen ved indføring af kuldioxid som ekstraktionsmiddel har en temperatur i området fra -20 til +200 °C, fortrinsvis fra 0 til +100 °C, særligt foretrukket fra 20 til +50 °C.
8. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at adskillelsen af ikke opløste faste stoffer fra det væskeformige suspenderingsmiddel gennemføres ved hjælp af filtrering, sedimentation eller centrifugering.
9. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at fjernelsen af kuldioxid fra suspenderingsmidlet sker gennem reducering af trykket og/eller temperaturforøgelse og/eller udfældning, med for eksempel Ca(OH)2, og/eller ultralydsbehandling og/eller mikrobølgebehandling og/eller mekaniske gasekstraktionshjælpemidler.
10. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at fjernelse af kuldioxid fra suspenderingsmidlet og udfældningen og adskillelsen af genbrugelige materialer sker fraktioneret i på hinanden følgende etaper.
11. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at der til udfældningen af phosphat fra suspenderingsmidlet yderligere tilsættes udfældningsmidler, fortrinsvis alkaliforbindelser eller jordalkaliforbindelser, fortrinsvist alkali- eller jordalkalihydroxid, særligt foretrukket calciumhydroxid.
12. Fremgangsmåde ifølge et af de foregående krav, kendetegnet ved, at calcium yderligere udvindes.
DK10720568.4T 2009-05-11 2010-04-30 Phosphatudvinding fra kloakslam. DK2429674T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910020745 DE102009020745A1 (de) 2009-05-11 2009-05-11 Phosphatgewinnung auf Klärschlamm
PCT/EP2010/055936 WO2010130589A1 (de) 2009-05-11 2010-04-30 Phosphatgewinnung aus klärschlamm

Publications (1)

Publication Number Publication Date
DK2429674T3 true DK2429674T3 (da) 2016-03-07

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DK10720568.4T DK2429674T3 (da) 2009-05-11 2010-04-30 Phosphatudvinding fra kloakslam.

Country Status (15)

Country Link
US (1) US9061221B2 (da)
EP (1) EP2429674B1 (da)
JP (1) JP5625046B2 (da)
KR (1) KR101670373B1 (da)
CA (1) CA2757308C (da)
DE (1) DE102009020745A1 (da)
DK (1) DK2429674T3 (da)
ES (1) ES2559433T3 (da)
HR (1) HRP20160155T1 (da)
HU (1) HUE026704T2 (da)
PL (1) PL2429674T3 (da)
PT (1) PT2429674E (da)
RU (1) RU2531815C2 (da)
SI (1) SI2429674T1 (da)
WO (1) WO2010130589A1 (da)

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US9061221B2 (en) 2015-06-23
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HUE026704T2 (en) 2016-07-28
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