DE69224748D1 - Process for the treatment of sewage sludge by a delayed, alkaline, exothermic sterilization - Google Patents

Process for the treatment of sewage sludge by a delayed, alkaline, exothermic sterilization

Info

Publication number
DE69224748D1
DE69224748D1 DE69224748T DE69224748T DE69224748D1 DE 69224748 D1 DE69224748 D1 DE 69224748D1 DE 69224748 T DE69224748 T DE 69224748T DE 69224748 T DE69224748 T DE 69224748T DE 69224748 D1 DE69224748 D1 DE 69224748D1
Authority
DE
Germany
Prior art keywords
exothermic
sterilization
delayed
alkaline
treatment
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.)
Expired - Fee Related
Application number
DE69224748T
Other languages
German (de)
Other versions
DE69224748T2 (en
Inventor
William Osgan Wurtz
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.)
Willow Technology Inc
Original Assignee
Willow Technology Inc
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 Willow Technology Inc filed Critical Willow Technology Inc
Priority claimed from EP92311157A external-priority patent/EP0601245B1/en
Publication of DE69224748D1 publication Critical patent/DE69224748D1/en
Application granted granted Critical
Publication of DE69224748T2 publication Critical patent/DE69224748T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/005—Black water originating from toilets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
DE69224748T 1992-12-08 1992-12-08 Process for the treatment of sewage sludge by a delayed, alkaline, exothermic sterilization Expired - Fee Related DE69224748T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92311157A EP0601245B1 (en) 1991-01-25 1992-12-08 Delayed, exothermic, alkaline sterilization method for treating wastewater sludges

Publications (2)

Publication Number Publication Date
DE69224748D1 true DE69224748D1 (en) 1998-04-16
DE69224748T2 DE69224748T2 (en) 1998-07-02

Family

ID=8211576

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224748T Expired - Fee Related DE69224748T2 (en) 1992-12-08 1992-12-08 Process for the treatment of sewage sludge by a delayed, alkaline, exothermic sterilization

Country Status (1)

Country Link
DE (1) DE69224748T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113582747A (en) * 2021-08-13 2021-11-02 唐勍 Fertilizer fermenting installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113582747A (en) * 2021-08-13 2021-11-02 唐勍 Fertilizer fermenting installation

Also Published As

Publication number Publication date
DE69224748T2 (en) 1998-07-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee