FR2414026A1 - Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing - Google Patents

Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing

Info

Publication number
FR2414026A1
FR2414026A1 FR7800453A FR7800453A FR2414026A1 FR 2414026 A1 FR2414026 A1 FR 2414026A1 FR 7800453 A FR7800453 A FR 7800453A FR 7800453 A FR7800453 A FR 7800453A FR 2414026 A1 FR2414026 A1 FR 2414026A1
Authority
FR
France
Prior art keywords
alkaline earth
earth base
soil
silicic
added
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.)
Granted
Application number
FR7800453A
Other languages
French (fr)
Other versions
FR2414026B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7800453A priority Critical patent/FR2414026A1/en
Publication of FR2414026A1 publication Critical patent/FR2414026A1/en
Application granted granted Critical
Publication of FR2414026B1 publication Critical patent/FR2414026B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/0418—Wet materials, e.g. slurries
    • 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
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Sewage sludge is treated to produce a soil-like material. An acidic ferrous salt solution is first added to the sludge to reduce its pH to below 4. An alkaline earth base is then added to raise its pH to at least 10. A silicic compound is added in an amount by volume up to twice the volume of the sludge, and a dry alkaline earth base is added in a volume of 0.05 to 0.2 of the added silicic compound. The resulting product is processed to remove excess water, if necessary. The product is finally allowed to age in contact with a natural environment to produce the soil-like material.
FR7800453A 1978-01-09 1978-01-09 Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing Granted FR2414026A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7800453A FR2414026A1 (en) 1978-01-09 1978-01-09 Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800453A FR2414026A1 (en) 1978-01-09 1978-01-09 Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing

Publications (2)

Publication Number Publication Date
FR2414026A1 true FR2414026A1 (en) 1979-08-03
FR2414026B1 FR2414026B1 (en) 1983-08-05

Family

ID=9203225

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800453A Granted FR2414026A1 (en) 1978-01-09 1978-01-09 Soil-like material prodn. from sewage sludge - by adding acidic ferrous salt soln., alkaline earth base, silicic cpd., dry alkaline earth base, removing water and ageing

Country Status (1)

Country Link
FR (1) FR2414026A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031667A1 (en) * 1979-12-21 1981-07-08 Stablex A.G. Improvements in the treatment of hazardous waste
FR2735121A1 (en) * 1995-06-06 1996-12-13 Kreusch Wilhelm Treatment of aluminous or ferrous sludge from water-treatment plants by dehydration
BE1009405A3 (en) * 1995-06-06 1997-03-04 Kreusch Wilhelm Method to treat aluminous and ferruginous sludge from water treatment plants with a view to their reuse and product treated for this purpose

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR585506A (en) * 1923-12-22 1925-03-03 Masch Centrale Fabrik Landw L Hay and straw transporter
CA1009775A (en) * 1972-12-19 1977-05-03 David Krofchak Stepwise treatment of aqueous wastes to form solid silicates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR585506A (en) * 1923-12-22 1925-03-03 Masch Centrale Fabrik Landw L Hay and straw transporter
CA1009775A (en) * 1972-12-19 1977-05-03 David Krofchak Stepwise treatment of aqueous wastes to form solid silicates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031667A1 (en) * 1979-12-21 1981-07-08 Stablex A.G. Improvements in the treatment of hazardous waste
FR2735121A1 (en) * 1995-06-06 1996-12-13 Kreusch Wilhelm Treatment of aluminous or ferrous sludge from water-treatment plants by dehydration
BE1009405A3 (en) * 1995-06-06 1997-03-04 Kreusch Wilhelm Method to treat aluminous and ferruginous sludge from water treatment plants with a view to their reuse and product treated for this purpose

Also Published As

Publication number Publication date
FR2414026B1 (en) 1983-08-05

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Legal Events

Date Code Title Description
ST Notification of lapse