DE69406773D1 - Kontrolle von Entwässerungsverfahren - Google Patents

Kontrolle von Entwässerungsverfahren

Info

Publication number
DE69406773D1
DE69406773D1 DE69406773T DE69406773T DE69406773D1 DE 69406773 D1 DE69406773 D1 DE 69406773D1 DE 69406773 T DE69406773 T DE 69406773T DE 69406773 T DE69406773 T DE 69406773T DE 69406773 D1 DE69406773 D1 DE 69406773D1
Authority
DE
Germany
Prior art keywords
pct
suspension
control
sec
top end
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
DE69406773T
Other languages
English (en)
Other versions
DE69406773T2 (de
Inventor
John Rodney Field
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.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Allied Colloids Ltd
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 Allied Colloids Ltd filed Critical Allied Colloids Ltd
Publication of DE69406773D1 publication Critical patent/DE69406773D1/de
Application granted granted Critical
Publication of DE69406773T2 publication Critical patent/DE69406773T2/de
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
    • C02F1/5209—Regulation methods for flocculation or precipitation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0092—Monitoring flocculation or agglomeration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Centrifugal Separators (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Biological Wastes In General (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
DE69406773T 1993-01-22 1994-01-21 Kontrolle von Entwässerungsverfahren Expired - Fee Related DE69406773T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939301261A GB9301261D0 (en) 1993-01-22 1993-01-22 Control of dewatering processes
PCT/GB1994/000119 WO1994017394A1 (en) 1993-01-22 1994-01-21 Control of dewatering processes

Publications (2)

Publication Number Publication Date
DE69406773D1 true DE69406773D1 (de) 1997-12-18
DE69406773T2 DE69406773T2 (de) 1998-03-12

Family

ID=10729145

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69406773T Expired - Fee Related DE69406773T2 (de) 1993-01-22 1994-01-21 Kontrolle von Entwässerungsverfahren

Country Status (11)

Country Link
US (1) US5620609A (de)
EP (1) EP0680604B1 (de)
AT (1) ATE160218T1 (de)
AU (1) AU5841894A (de)
DE (1) DE69406773T2 (de)
DK (1) DK0680604T3 (de)
ES (1) ES2108970T3 (de)
GB (1) GB9301261D0 (de)
GR (1) GR3025750T3 (de)
WO (1) WO1994017394A1 (de)
ZA (1) ZA94440B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU778492B2 (en) 2000-04-07 2004-12-09 Rohm And Haas Company Method and apparatus for determining the dispersion stability of a liquid suspension
US6849190B2 (en) 2001-12-19 2005-02-01 Usfilter Corporation Methods for polymer addition control for water treatment
US6964737B2 (en) 2002-06-14 2005-11-15 Duke University Systems for water and wastewater sludge treatment using floc or network strength
US20040149661A1 (en) * 2003-01-24 2004-08-05 United States Filter Corporation Effect of cations on activated sludge characteristics
CA2629593A1 (en) * 2008-04-11 2009-10-11 James Michael Dunbar Feedback control scheme for optimizing dewatering processes
US20100093078A1 (en) * 2008-10-14 2010-04-15 Cleveland State University Separating device, an algae culture photobioreactor, and methods of using them
US8570497B2 (en) * 2010-02-08 2013-10-29 Phillips 66 Company Oil in water analyzer
FI20105814A0 (fi) * 2010-07-20 2010-07-20 Kemira Oyj Menetelmä ja järjestelmä vesipitoisten virtojen käsittelemiseksi
FI20105813A0 (fi) * 2010-07-20 2010-07-20 Kemira Oyj Menetelmä ja järjestelmä vesipitoisen virran ominaisuuksien monitoroimiseksi
KR20140116660A (ko) * 2013-03-25 2014-10-06 삼성에스디아이 주식회사 탁도측정장치 및 탁도측정방법
GB2577926A (en) * 2018-10-11 2020-04-15 Cde Global Ltd Sampling and test apparatus for a waste water treatment system
EP3825283B1 (de) * 2019-11-21 2024-04-10 Grundfos Holding A/S Verfahren zur verminderung der anwesenheit einer ausgewählten chemischen substanz im abwasser, das in einem abwasserkanalsystem fliesst
CN111377514B (zh) * 2020-03-19 2023-10-27 安徽理工大学 一种具备浓度检测功能的煤泥水浓缩系统及其浓度检测方法
CN114002151A (zh) * 2021-10-29 2022-02-01 中国科学院西安光学精密机械研究所 一种非接触式水体浊度测量装置与方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309956A (en) * 1962-07-05 1967-03-21 Hach Chemical Co Extended range turbidimeter
FR2055874A5 (de) * 1969-08-04 1971-05-14 Degremont
US3869903A (en) * 1972-07-19 1975-03-11 Permutit Co Settling rate tester
FR2330654A1 (fr) * 1975-11-06 1977-06-03 Degremont Procede et installation pour la regulation automatique de l'extraction des boues d'un appareil de traitement des eaux
US4194391A (en) * 1977-10-03 1980-03-25 Nalco Chemical Company Device for determining settling rates of solids or particulate bearing liquid in a continuous process or flowing stream
GB2050336B (en) * 1979-05-23 1983-01-06 Coal Industry Patents Ltd Slurry suspension sampling equipment
SU1300347A1 (ru) * 1982-09-27 1987-03-30 Красноярский институт цветных металлов им.М.И.Калинина Способ определени скорости осаждени взвешенных веществ
US4876881A (en) * 1988-08-12 1989-10-31 Mt. Fury Company Method and apparatus for measuring settling rate, compaction, and clarity of a liquid

Also Published As

Publication number Publication date
EP0680604A1 (de) 1995-11-08
ZA94440B (en) 1995-01-23
GR3025750T3 (en) 1998-03-31
ES2108970T3 (es) 1998-01-01
WO1994017394A1 (en) 1994-08-04
ATE160218T1 (de) 1997-11-15
AU5841894A (en) 1994-08-15
EP0680604B1 (de) 1997-11-12
DK0680604T3 (da) 1998-07-27
DE69406773T2 (de) 1998-03-12
US5620609A (en) 1997-04-15
GB9301261D0 (en) 1993-03-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CIBA SPECIALITY CHEMICALS WATER TREATMENTS LTD., B

8339 Ceased/non-payment of the annual fee