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GB1307494A - Method of and apparatus for the thermal conditioning of sewage sludge - Google Patents

Method of and apparatus for the thermal conditioning of sewage sludge

Info

Publication number
GB1307494A
GB1307494A GB1018471*[A GB1018471A GB1307494A GB 1307494 A GB1307494 A GB 1307494A GB 1018471 A GB1018471 A GB 1018471A GB 1307494 A GB1307494 A GB 1307494A
Authority
GB
United Kingdom
Prior art keywords
sludge
crude
stream
chambers
pressure
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
Application number
GB1018471*[A
Inventor
B Koglin
J Klebe
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.)
Vereinigte Kesselwerke AG
Original Assignee
Vereinigte Kesselwerke AG
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 Vereinigte Kesselwerke AG filed Critical Vereinigte Kesselwerke AG
Publication of GB1307494A publication Critical patent/GB1307494A/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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating

Landscapes

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

Abstract

1307494 Heating sludge VEREINIGTE KESSELWERKE AG 20 April 1971 [20 April 1970] 10184/71 Heading C1C In an apparatus for thermally conditioning sewage sludge to prepare it for dewatering, in which sludge is heated by steam at elevated temperature and pressure in reactor 1, a stream of crude sludge is passed through the upper chambers 12 of a plurality of direct heat exchangers, e.g. 2c, 2b, 2a while a stream of conditioned sludge from reactor 1 is passed through the lower chambers 11 of the exchangers, the pressure of the conditioned sludge stream being reduced through expansion valves 4a-4d, so that vapours evolved during expansion of the conditioned sludge mix with the crude sludge and condense in the chambers 12 to gradually increase the temperature and pressure of the crude sludge stream. Saturated vapour conditions are attained in the upper chambers 12. The upper chambers 12 contain plates 14a, 14b for breaking up the crude sludge. The upper chambers 12 may be provided with nozzles or rotating plates for breaking up the crude sludge.
GB1018471*[A 1970-04-20 1971-04-20 Method of and apparatus for the thermal conditioning of sewage sludge Expired GB1307494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2019731A DE2019731C3 (en) 1970-04-20 1970-04-20 Process for treating sewage sludge to improve its drainage properties and device for carrying out the process

Publications (1)

Publication Number Publication Date
GB1307494A true GB1307494A (en) 1973-02-21

Family

ID=5769028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1018471*[A Expired GB1307494A (en) 1970-04-20 1971-04-20 Method of and apparatus for the thermal conditioning of sewage sludge

Country Status (7)

Country Link
JP (1) JPS5420782B1 (en)
BE (1) BE765766A (en)
DE (1) DE2019731C3 (en)
FR (1) FR2089789A5 (en)
GB (1) GB1307494A (en)
NL (1) NL7105219A (en)
SE (1) SE375975B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040887A1 (en) * 1980-05-22 1981-12-02 Jan Schmidt Method and apparatus for treatment and hygienisation of sewage sludge and other organic sludges

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826132C2 (en) * 1978-06-15 1980-03-27 Vereinigte Kesselwerke Ag, 4000 Duesseldorf Process for the continuous conditioning of sludge
DE3134224A1 (en) * 1981-08-29 1983-03-10 LIMUS Umwelttechnik GmbH, 1000 Berlin Process and plant for the thermal treatment of sludge
EP3422030B1 (en) 2016-02-25 2022-08-17 Tatsumi Ryoki Co., Ltd Electricity generating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040887A1 (en) * 1980-05-22 1981-12-02 Jan Schmidt Method and apparatus for treatment and hygienisation of sewage sludge and other organic sludges

Also Published As

Publication number Publication date
BE765766A (en) 1971-10-15
NL7105219A (en) 1971-10-22
DE2019731C3 (en) 1974-11-21
DE2019731A1 (en) 1971-11-18
SE375975B (en) 1975-05-05
DE2019731B2 (en) 1974-03-14
JPS5420782B1 (en) 1979-07-25
FR2089789A5 (en) 1972-01-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee