GB1009707A - A method of treating raw sludge in sewage systems - Google Patents

A method of treating raw sludge in sewage systems

Info

Publication number
GB1009707A
GB1009707A GB28190/62A GB2819062A GB1009707A GB 1009707 A GB1009707 A GB 1009707A GB 28190/62 A GB28190/62 A GB 28190/62A GB 2819062 A GB2819062 A GB 2819062A GB 1009707 A GB1009707 A GB 1009707A
Authority
GB
United Kingdom
Prior art keywords
sludge
collected
mixed
rotary screen
raw sludge
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
GB28190/62A
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.)
Leje and Thurne AB
Original Assignee
Leje and Thurne AB
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 Leje and Thurne AB filed Critical Leje and Thurne AB
Publication of GB1009707A publication Critical patent/GB1009707A/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
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water

Abstract

1,009,707. Filtering and pressing settled sludge. LEJE & THURNE A.B. July 23, 1962 [Nov. 30, 1961], No. 28190/62. Heading B1D. Collected sedimented sludge 4 from sewage is withdrawn by a pipe 5 and mixed with, e.g., sulphuric acid at 6 to adjust the pH to the isoelectric point of its protein content. It is then mixed with wood pulp or cellulose fibres and passed through a flat or rotary screen at 14, filtrate passing back at 15 to the tank 1. The screened sludge-pulp mixture is then dewatered by compression, e.g. by a rotary screw press, at 17, and the final product is burned on a grate 22. The resulting ash is collected at 30. Where a rotary screen is provided at 14, it may be as described in Specification 710,741, the filtering layer in that case being paper waste in suspension.
GB28190/62A 1961-11-30 1962-07-23 A method of treating raw sludge in sewage systems Expired GB1009707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1196361 1961-11-30

Publications (1)

Publication Number Publication Date
GB1009707A true GB1009707A (en) 1965-11-10

Family

ID=20294906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28190/62A Expired GB1009707A (en) 1961-11-30 1962-07-23 A method of treating raw sludge in sewage systems

Country Status (4)

Country Link
AT (1) AT245506B (en)
ES (1) ES282852A1 (en)
GB (1) GB1009707A (en)
NL (1) NL286031A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2123516A1 (en) * 1971-01-28 1972-09-08 Rheinstahl Ag Conditioning and de watering of effluent sludge - by mixing with flocculants
WO1997007065A1 (en) * 1995-08-16 1997-02-27 Commonwealth Scientific And Industrial Research Organisation Dewatering of sludges
WO2015108762A1 (en) * 2014-01-14 2015-07-23 Buckman Laboratories International, Inc. Use of celluloses in sludge dewatering, and sludge products thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354293A2 (en) * 1975-08-19 1978-01-06 Alsthom Cgee PROCESS FOR COMPACTING AND SPINING FLUID SLUDGE LOADED WITH FIBROUS MATERIALS
DE2831384A1 (en) * 1978-07-17 1980-01-31 Weiss Geb Kg FILTER TOOLS FOR TREATMENT OF SUSPENSIONS, ESPECIALLY COMMUNAL, INDUSTRIAL AND OTHER SLUDGE FOR THE FOLLOWING DRAINAGE
SU994445A1 (en) * 1980-12-12 1983-02-07 Управление Водопроводно-Канализационного Хозяйства "Водоканал" Ленгорисполкома Method for treating effluent precipitates
AT377499B (en) * 1981-04-08 1985-03-25 Voest Alpine Ag CONTINUOUSLY WORKING DRAINAGE DEVICE
AT393266B (en) * 1988-05-30 1991-09-25 Voest Alpine Maschinenbau DEVICE FOR DRAINING WASTEWATER SLUDGE
AT394995B (en) * 1990-11-08 1992-08-10 Lindner Wolfgang Ing Apparatus for separating off and compressing solids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2123516A1 (en) * 1971-01-28 1972-09-08 Rheinstahl Ag Conditioning and de watering of effluent sludge - by mixing with flocculants
WO1997007065A1 (en) * 1995-08-16 1997-02-27 Commonwealth Scientific And Industrial Research Organisation Dewatering of sludges
WO2015108762A1 (en) * 2014-01-14 2015-07-23 Buckman Laboratories International, Inc. Use of celluloses in sludge dewatering, and sludge products thereof
US9776900B2 (en) 2014-01-14 2017-10-03 Buckman Laboratories International, Inc. Use of celluloses in sludge dewatering, and sludge products thereof

Also Published As

Publication number Publication date
NL286031A (en)
ES282852A1 (en) 1963-05-01
AT245506B (en) 1966-03-10

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