SE0302754D0 - Sludge treatment method - Google Patents

Sludge treatment method

Info

Publication number
SE0302754D0
SE0302754D0 SE0302754A SE0302754A SE0302754D0 SE 0302754 D0 SE0302754 D0 SE 0302754D0 SE 0302754 A SE0302754 A SE 0302754A SE 0302754 A SE0302754 A SE 0302754A SE 0302754 D0 SE0302754 D0 SE 0302754D0
Authority
SE
Sweden
Prior art keywords
sludge
sodium
precipitation
treatment
magnesium
Prior art date
Application number
SE0302754A
Other languages
Swedish (sv)
Other versions
SE0302754L (en
SE527145C2 (en
Inventor
Hans David Ulmert
Original Assignee
Hans David Ulmert
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 Hans David Ulmert filed Critical Hans David Ulmert
Priority to SE0302754A priority Critical patent/SE527145C2/en
Publication of SE0302754D0 publication Critical patent/SE0302754D0/en
Priority to PL380068A priority patent/PL380068A1/en
Priority to EP04775566A priority patent/EP1673307A1/en
Priority to PCT/SE2004/001497 priority patent/WO2005037714A1/en
Priority to CNA2004800322758A priority patent/CN1874960A/en
Priority to US10/575,806 priority patent/US20110089109A1/en
Publication of SE0302754L publication Critical patent/SE0302754L/en
Publication of SE527145C2 publication Critical patent/SE527145C2/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
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates
    • 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
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Geology (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Treatment of sludge involves addition of acid such as potassium, sodium, and/or ammonium sulfate to the sludge and subjecting to at least one membrane filtration process to obtain a permeate or concentrate including trivalent aluminum and/or iron ions in solution that are crystallized in a precipitation. The precipitation is subjected to a product adaptation step. - The crystallization is performed at low temperature or after an adjustment of pH by adding e.g. potassium hydroxides, sodium hydroxide, sodium carbonate, magnesium hydroxide, magnesium oxide and/or magnesium carbonate. An INDEPENDENT CLAIM is included for a construction for treatment of sludge.
SE0302754A 2003-10-17 2003-10-17 Treatment of sludge involves adding acid e.g. ammonium sulfate to sludge and subjecting to membrane filtration process to obtain permeate/concentrate including aluminum and/or iron ions in solution which are crystallized in precipitation SE527145C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE0302754A SE527145C2 (en) 2003-10-17 2003-10-17 Treatment of sludge involves adding acid e.g. ammonium sulfate to sludge and subjecting to membrane filtration process to obtain permeate/concentrate including aluminum and/or iron ions in solution which are crystallized in precipitation
PL380068A PL380068A1 (en) 2003-10-17 2004-10-18 Method for treatment of sludge
EP04775566A EP1673307A1 (en) 2003-10-17 2004-10-18 Method for treatment of sludge
PCT/SE2004/001497 WO2005037714A1 (en) 2003-10-17 2004-10-18 Method for treatment of sludge
CNA2004800322758A CN1874960A (en) 2003-10-17 2004-10-18 Method for treatment of sludge
US10/575,806 US20110089109A1 (en) 2003-10-17 2004-10-18 Method for treatment of sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0302754A SE527145C2 (en) 2003-10-17 2003-10-17 Treatment of sludge involves adding acid e.g. ammonium sulfate to sludge and subjecting to membrane filtration process to obtain permeate/concentrate including aluminum and/or iron ions in solution which are crystallized in precipitation

Publications (3)

Publication Number Publication Date
SE0302754D0 true SE0302754D0 (en) 2003-10-17
SE0302754L SE0302754L (en) 2005-04-18
SE527145C2 SE527145C2 (en) 2006-01-10

Family

ID=29398762

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0302754A SE527145C2 (en) 2003-10-17 2003-10-17 Treatment of sludge involves adding acid e.g. ammonium sulfate to sludge and subjecting to membrane filtration process to obtain permeate/concentrate including aluminum and/or iron ions in solution which are crystallized in precipitation

Country Status (2)

Country Link
CN (1) CN1874960A (en)
SE (1) SE527145C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101544455B (en) * 2009-03-18 2011-07-27 南京大学 Purifying and solidifying method of high-pollution load silt

Also Published As

Publication number Publication date
SE0302754L (en) 2005-04-18
CN1874960A (en) 2006-12-06
SE527145C2 (en) 2006-01-10

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