FR2451901A1 - Dewatering sludges to solidify and harden them - using specified calcium silicate slag and hydraulic binder - Google Patents

Dewatering sludges to solidify and harden them - using specified calcium silicate slag and hydraulic binder

Info

Publication number
FR2451901A1
FR2451901A1 FR7907246A FR7907246A FR2451901A1 FR 2451901 A1 FR2451901 A1 FR 2451901A1 FR 7907246 A FR7907246 A FR 7907246A FR 7907246 A FR7907246 A FR 7907246A FR 2451901 A1 FR2451901 A1 FR 2451901A1
Authority
FR
France
Prior art keywords
calcium silicate
harden
solidify
hydraulic binder
silicate slag
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
FR7907246A
Other languages
French (fr)
Other versions
FR2451901B1 (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 FR7907246A priority Critical patent/FR2451901B1/en
Publication of FR2451901A1 publication Critical patent/FR2451901A1/en
Application granted granted Critical
Publication of FR2451901B1 publication Critical patent/FR2451901B1/en
Expired 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/008—Sludge treatment by fixation or solidification
    • 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

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

Abstract

The process comprises adding powdery metallurgical slags which have undergone disintegration brought about by allotropic transformation of calcium silicate (i.e. from the beta monoclinic form to the gamma rhombohedral form). The slag is in the form of a sand of particle size less than 100 microns and has a high specific surface. The process is applied to the consolidation of sludges using hydraulic binders, apt. setting agents and fine materials from dedusting appts. Appreciably less hydraulic binders and setting agents are required and the process enables use of the dewatered sludge to form filling material, or granulates.
FR7907246A 1979-03-22 1979-03-22 PROCESS FOR TREATING SLUDGE, RESIDUE AND WASTE WITH HIGH WATER CONTENT Expired FR2451901B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7907246A FR2451901B1 (en) 1979-03-22 1979-03-22 PROCESS FOR TREATING SLUDGE, RESIDUE AND WASTE WITH HIGH WATER CONTENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907246A FR2451901B1 (en) 1979-03-22 1979-03-22 PROCESS FOR TREATING SLUDGE, RESIDUE AND WASTE WITH HIGH WATER CONTENT

Publications (2)

Publication Number Publication Date
FR2451901A1 true FR2451901A1 (en) 1980-10-17
FR2451901B1 FR2451901B1 (en) 1985-10-11

Family

ID=9223440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907246A Expired FR2451901B1 (en) 1979-03-22 1979-03-22 PROCESS FOR TREATING SLUDGE, RESIDUE AND WASTE WITH HIGH WATER CONTENT

Country Status (1)

Country Link
FR (1) FR2451901B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361614A1 (en) * 1988-09-29 1990-04-04 PELT & HOOYKAAS B.V. Method for rendering toxic waste harmless
NL9300364A (en) * 1993-02-26 1994-09-16 Pelt & Hooykaas Method for immobilizing particles suspended in water.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2220489A1 (en) * 1973-03-08 1974-10-04 Dravo Corp
CA963482A (en) * 1972-06-14 1975-02-25 St. Lawrence Cement Co. Portland cement-slag binders
FR2302970A1 (en) * 1975-03-06 1976-10-01 Perrier Materiel Treating effluent sludge containing hydroxides of heavy metals - by mixing into solidifying insol. material for safe disposal
FR2320266A1 (en) * 1975-08-06 1977-03-04 Quienot Jean SOLIDIFICATION PROCESS FOR WASTE OF VARIOUS NATURE AND ORIGIN
US4028130A (en) * 1974-08-02 1977-06-07 Iu Conversion Systems, Inc. Disposal method and use of sewage sludge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA963482A (en) * 1972-06-14 1975-02-25 St. Lawrence Cement Co. Portland cement-slag binders
FR2220489A1 (en) * 1973-03-08 1974-10-04 Dravo Corp
US4028130A (en) * 1974-08-02 1977-06-07 Iu Conversion Systems, Inc. Disposal method and use of sewage sludge
FR2302970A1 (en) * 1975-03-06 1976-10-01 Perrier Materiel Treating effluent sludge containing hydroxides of heavy metals - by mixing into solidifying insol. material for safe disposal
FR2320266A1 (en) * 1975-08-06 1977-03-04 Quienot Jean SOLIDIFICATION PROCESS FOR WASTE OF VARIOUS NATURE AND ORIGIN

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361614A1 (en) * 1988-09-29 1990-04-04 PELT & HOOYKAAS B.V. Method for rendering toxic waste harmless
US5067981A (en) * 1988-09-29 1991-11-26 Pelt & Hooykaas B.V. Method for rendering toxic waste harmless
NL9300364A (en) * 1993-02-26 1994-09-16 Pelt & Hooykaas Method for immobilizing particles suspended in water.

Also Published As

Publication number Publication date
FR2451901B1 (en) 1985-10-11

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Legal Events

Date Code Title Description
ST Notification of lapse