ES384043A1 - Sewage sludge treatment process - Google Patents

Sewage sludge treatment process

Info

Publication number
ES384043A1
ES384043A1 ES384043A ES384043A ES384043A1 ES 384043 A1 ES384043 A1 ES 384043A1 ES 384043 A ES384043 A ES 384043A ES 384043 A ES384043 A ES 384043A ES 384043 A1 ES384043 A1 ES 384043A1
Authority
ES
Spain
Prior art keywords
mud
approximately
heating
hour
color
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
ES384043A
Other languages
Spanish (es)
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.)
STWB Inc
Original Assignee
Sterling Drug 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 Sterling Drug Inc filed Critical Sterling Drug Inc
Publication of ES384043A1 publication Critical patent/ES384043A1/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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

A procedure to reduce the formation of color and the solubilization of the biological oxygen demand in the thermal treatment of residual agitation mud to improve its dehydration characteristics by heating said mud, characterized by rapidly heating mud for up to approximately 240 seconds at a temperature between approximately 190ºC and approximately 230ºC, the heating period being inversely proportional to the selected temperature and just enough to increase the suitability of the mud to be filtered up to at least 48.8 kg/m2/hour in the case of primary mud and 14, 6 kg/m2/hour for activated deferred sludge, and cool the sludge before excessive degrees of color develop in the supernatant liquid. (Machine-translation by Google Translate, not legally binding)
ES384043A 1969-09-29 1970-09-28 Sewage sludge treatment process Expired ES384043A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86189469A 1969-09-29 1969-09-29

Publications (1)

Publication Number Publication Date
ES384043A1 true ES384043A1 (en) 1973-05-01

Family

ID=25337049

Family Applications (1)

Application Number Title Priority Date Filing Date
ES384043A Expired ES384043A1 (en) 1969-09-29 1970-09-28 Sewage sludge treatment process

Country Status (10)

Country Link
JP (1) JPS5027822B1 (en)
CA (1) CA938896A (en)
CH (1) CH516482A (en)
DE (1) DE2047875C2 (en)
ES (1) ES384043A1 (en)
FR (1) FR2062776A5 (en)
GB (1) GB1330672A (en)
IL (1) IL35333A (en)
NL (1) NL7014261A (en)
SE (1) SE375974B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2132953A1 (en) * 1970-07-02 1972-01-05 Sterling Drug Inc Raw sludge treatment
FR2343703A1 (en) * 1976-03-13 1977-10-07 Kubota Ltd SLUDGE TREATMENT PROCESS AND PLANT
CH616395A5 (en) * 1976-09-29 1980-03-31 Norm Amc Ag Process for treating wet sludge from a sewage treatment plant and device for carrying out the process
DE102005034371A1 (en) * 2005-07-22 2007-01-25 Siemens Ag Apparatus and method for water treatment
JP4567757B2 (en) 2008-02-05 2010-10-20 稔 中村 Automatic urine processing equipment
CN109502925B (en) * 2018-12-31 2024-01-02 天津滨港电镀企业管理有限公司 Sewage treatment system under low-temperature condition and treatment method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1179877B (en) * 1956-12-19 1964-10-15 L Von Roll A G Process for dewatering digested or fresh sludge
DE1484826A1 (en) * 1964-09-11 1969-03-13 Duengemittel Technik Ag Process for the easier separation of especially colloidally dissolved substances from Klaerschlaemmen

Also Published As

Publication number Publication date
DE2047875A1 (en) 1971-04-08
CH516482A (en) 1971-12-15
SE375974B (en) 1975-05-05
IL35333A0 (en) 1970-11-30
JPS5027822B1 (en) 1975-09-10
NL7014261A (en) 1971-03-31
CA938896A (en) 1973-12-25
IL35333A (en) 1973-06-29
GB1330672A (en) 1973-09-19
FR2062776A5 (en) 1971-06-25
DE2047875C2 (en) 1983-09-01

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