GB1414829A – Solids containing waste liquid treatment plants
– Google Patents
GB1414829A – Solids containing waste liquid treatment plants
– Google Patents
Solids containing waste liquid treatment plants
Info
Publication number
GB1414829A
GB1414829A
GB2719673*[A
GB2719673A
GB1414829A
GB 1414829 A
GB1414829 A
GB 1414829A
GB 2719673 A
GB2719673 A
GB 2719673A
GB 1414829 A
GB1414829 A
GB 1414829A
Authority
GB
United Kingdom
Prior art keywords
sludge
compartment
pipe
tank
valve
Prior art date
1973-06-07
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
GB2719673*[A
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.)
Thames Water Authority
Original Assignee
Thames Water Authority
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.)
1973-06-07
Filing date
1973-06-07
Publication date
1975-11-19
1973-06-07
Application filed by Thames Water Authority
filed
Critical
Thames Water Authority
1973-06-07
Priority to GB2719673*[A
priority
Critical
patent/GB1414829A/en
1975-11-19
Publication of GB1414829A
publication
Critical
patent/GB1414829A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D21/00—Separation of suspended solid particles from liquids by sedimentation
B01D21/0006—Settling tanks provided with means for cleaning and maintenance
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D21/00—Separation of suspended solid particles from liquids by sedimentation
B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D21/00—Separation of suspended solid particles from liquids by sedimentation
B01D21/24—Feed or discharge mechanisms for settling tanks
B01D21/245—Discharge mechanisms for the sediments
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D21/00—Separation of suspended solid particles from liquids by sedimentation
B01D21/30—Control equipment
B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
Abstract
1414829 Settling apparatus THAMES WATER AUTHORITY 19 Dec 1973 [7 June 1973] 27196/73 Heading B1D A settling apparatus comprises at least one settling tank (1) (Fig. 1, not shown) having rotary sludge scrapers and connected to sludge-receiving chamber 10 by gravity-flow pipe 7 provided with valve 11 which is closed when the sludge level in compartment 9 reaches mercury float switch 23. The chamber 10 is divided into two compartments 9, 10 by partition 13 provided with adjustable orifice 14 and adjustable weir 15. To remove sludge from sump (16) of tank (1), valve 11 is opened by actuator 20 under the control of a timer (not shown) and the sludge flows from pipe 7 through compartment 9, orifice 14, and compartment 12 to pipe 19. The sludge flow rate in pipe 7 gradually increases due to a viscosity decrease and as a result the sludge level in compartment 9 rises. When it reaches switch 23, preferably positioned at the level of weir 15, the valve 11 is closed after a timed delay. When there is more than one settling tank sludge is removed from each tank in turn.
GB2719673*[A
1973-06-07
1973-06-07
Solids containing waste liquid treatment plants
Expired
GB1414829A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB2719673*[A
GB1414829A
(en)
1973-06-07
1973-06-07
Solids containing waste liquid treatment plants
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2719673*[A
GB1414829A
(en)
1973-06-07
1973-06-07
Solids containing waste liquid treatment plants
Publications (1)
Publication Number
Publication Date
GB1414829A
true
GB1414829A
(en)
1975-11-19
Family
ID=10255736
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2719673*[A
Expired
GB1414829A
(en)
1973-06-07
1973-06-07
Solids containing waste liquid treatment plants
Country Status (1)
Country
Link
GB
(1)
GB1414829A
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5582652A
(en)
*
1993-11-29
1996-12-10
Koch Exploration Canada Ltd
Method for removing fines from a crude oil tank
WO2012006745A1
(en)
*
2010-07-16
2012-01-19
Highmark Renewables Research Limited Partnership
Grit removal system
US20170283338A1
(en)
*
2016-04-05
2017-10-05
Daritech, Inc.
Self-Flushing Anaerobic Digester System
1973
1973-06-07
GB
GB2719673*[A
patent/GB1414829A/en
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5582652A
(en)
*
1993-11-29
1996-12-10
Koch Exploration Canada Ltd
Method for removing fines from a crude oil tank
WO2012006745A1
(en)
*
2010-07-16
2012-01-19
Highmark Renewables Research Limited Partnership
Grit removal system
US20150008196A1
(en)
*
2010-07-16
2015-01-08
Peter Kotelko
Grit removal system
US20170283338A1
(en)
*
2016-04-05
2017-10-05
Daritech, Inc.
Self-Flushing Anaerobic Digester System
US10611700B2
(en)
*
2016-04-05
2020-04-07
Dari-Tech, Inc.
Self-flushing anaerobic digester system
US20200172449A1
(en)
*
2016-04-05
2020-06-04
Dari-Tech, Inc.
Self-flushing anaerobic digester system
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Legal Events
Date
Code
Title
Description
1976-03-31
PS
Patent sealed
1979-04-11
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1979-04-25
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1992-08-19
PCNP
Patent ceased through non-payment of renewal fee
