FR2179129A1 - Regeneration of carbonaceous adsorbents - by high-energy irradiation in presence of oxygen and opt aq phase - Google Patents

Regeneration of carbonaceous adsorbents - by high-energy irradiation in presence of oxygen and opt aq phase

Info

Publication number
FR2179129A1
FR2179129A1 FR7312186A FR7312186A FR2179129A1 FR 2179129 A1 FR2179129 A1 FR 2179129A1 FR 7312186 A FR7312186 A FR 7312186A FR 7312186 A FR7312186 A FR 7312186A FR 2179129 A1 FR2179129 A1 FR 2179129A1
Authority
FR
France
Prior art keywords
carbonaceous adsorbent
irradiation
pref
phase
oxygen
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
FR7312186A
Other languages
French (fr)
Other versions
FR2179129B1 (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.)
US Atomic Energy Commission (AEC)
Original Assignee
US Atomic Energy Commission (AEC)
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 US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Publication of FR2179129A1 publication Critical patent/FR2179129A1/en
Application granted granted Critical
Publication of FR2179129B1 publication Critical patent/FR2179129B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/354—After-treatment
    • C01B32/36—Reactivation or regeneration
    • C01B32/366—Reactivation or regeneration by physical processes, e.g. by irradiation, by using electric current passing through carbonaceous feedstock or by using recyclable inert heating bodies
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/39—Apparatus for the preparation 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Particulate carbonaceous adsorbent (charcoal, bone black, other types of active carbon), contg. adsorbed org. matter is regenerated by high-energy irradiation (pref. gamma-rays) under O2 at a press. =2000 psi (pref. 50-2000 psi), pref. in the presence of an aq. phase. Impure water can be directly purified by passing it through a column filled with a carbonaceous adsorbent under oxygen, with gamma-irradiation. The use of carbonaceous adsorbent permits concn. of the impurities and hence reduces the surface to be irradiated, whereby the consumption of the radiation energy can be reduced. The carbonaceous adsorbent is not damaged by the irradiation. The method can be used in the prodn. of dyestuffs, paper, textiles, etc.
FR7312186A 1972-04-04 1973-04-04 Regeneration of carbonaceous adsorbents - by high-energy irradiation in presence of oxygen and opt aq phase Granted FR2179129A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24080572A 1972-04-04 1972-04-04

Publications (2)

Publication Number Publication Date
FR2179129A1 true FR2179129A1 (en) 1973-11-16
FR2179129B1 FR2179129B1 (en) 1976-09-10

Family

ID=22908019

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7312186A Granted FR2179129A1 (en) 1972-04-04 1973-04-04 Regeneration of carbonaceous adsorbents - by high-energy irradiation in presence of oxygen and opt aq phase

Country Status (4)

Country Link
JP (1) JPS4916679A (en)
CA (1) CA978138A (en)
DE (1) DE2316731A1 (en)
FR (1) FR2179129A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439856A1 (en) * 1990-02-02 1991-08-07 ENIRICERCHE S.p.A. Process for the regeneration of active carbon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2554802B2 (en) * 1991-08-23 1996-11-20 日本原子力研究所 Treatment method of difficult-to-treat activated carbon by ionizing radiation irradiation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439856A1 (en) * 1990-02-02 1991-08-07 ENIRICERCHE S.p.A. Process for the regeneration of active carbon

Also Published As

Publication number Publication date
CA978138A (en) 1975-11-18
DE2316731A1 (en) 1973-10-18
JPS4916679A (en) 1974-02-14
FR2179129B1 (en) 1976-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse