US20090095678A1 - Purification of oil sands pond water - Google Patents

Purification of oil sands pond water Download PDF

Info

Publication number
US20090095678A1
US20090095678A1 US11/872,288 US87228807A US2009095678A1 US 20090095678 A1 US20090095678 A1 US 20090095678A1 US 87228807 A US87228807 A US 87228807A US 2009095678 A1 US2009095678 A1 US 2009095678A1
Authority
US
United States
Prior art keywords
membrane
separation system
ppm
polymers
membrane separation
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.)
Abandoned
Application number
US11/872,288
Other languages
English (en)
Inventor
Deepak A. Musale
Anthony G. Sommese
Walter H. Goodman
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.)
Ecolab USA Inc
Original Assignee
Nalco Co LLC
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 Nalco Co LLC filed Critical Nalco Co LLC
Priority to US11/872,288 priority Critical patent/US20090095678A1/en
Assigned to NALCO COMPANY reassignment NALCO COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOODMAN, WALTER H., MUSALE, DEEPAK A., SOMMESE, ANTHONY G.
Priority to CA2704741A priority patent/CA2704741C/en
Priority to PCT/US2008/079446 priority patent/WO2009052018A1/en
Priority to RU2010115218/05A priority patent/RU2487085C9/ru
Priority to EP08839112A priority patent/EP2203391A1/en
Priority to CN200880115843A priority patent/CN101855177A/zh
Publication of US20090095678A1 publication Critical patent/US20090095678A1/en
Assigned to BANK OF AMERICA, N.A., AS COLLATERAL AGENT reassignment BANK OF AMERICA, N.A., AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: CALGON LLC, NALCO COMPANY, NALCO CROSSBOW WATER LLC, NALCO ONE SOURCE LLC
Priority to US12/881,303 priority patent/US8597515B2/en
Assigned to NALCO COMPANY reassignment NALCO COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to NALCO COMPANY reassignment NALCO COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to NALCO COMPANY LLC reassignment NALCO COMPANY LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: NALCO COMPANY
Assigned to ECOLAB USA INC. reassignment ECOLAB USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CALGON CORPORATION, CALGON LLC, NALCO COMPANY LLC, ONDEO NALCO ENERGY SERVICES, L.P.
Assigned to ECOLAB USA INC. reassignment ECOLAB USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NALCO COMPANY
Abandoned legal-status Critical Current

Links

Images

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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
    • 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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/682—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of chemical compounds for dispersing an oily layer on water

Definitions

  • This invention is in the field of purifying oil sands process water and improving processes that carry out this task.
  • Water is integral to an oils sands processing operation because it facilitates the transfer and/or separation of mined material.
  • Constituents of the mined material include hydrocarbon (sometimes referred to as bitumen), sand, clay, and water.
  • hydrocarbon sometimes referred to as bitumen
  • sand sand
  • clay sand
  • water water
  • the most common process to extract the hydrocarbon from the mixture involves crushing the mined material and later suspending the material in water, typically with the addition of heat, to form a slurry.
  • the resultant slurry is processed, for example, by using froth flotation via the addition of chemicals to the slurry. This promotes the formation of a stable froth containing the hydrocarbon and the separation of the hydrocarbon from the other constituents.
  • the resultant stream which contains the unwanted constituents, is sent to a tailings settling pond to allow the sand, clay, and other particulate(s) to settle.
  • Fouling of membranes and reducing flux through membranes makes the processing of water for reuse in an oil sands process less efficient. More specifically, when the membrane fouls, it is less efficient in that it requires more frequent cleaning and possible replacement. In addition, it also takes more energy and time for filtering when membranes foul, and the pond water passes through a membrane at a slower rate.
  • the present disclosure provides for a method of enhancing flux of tailings settling pond water from an oil sands process through a membrane separation system and purifying the water comprising the following steps: (a) treating the water with an effective amount of one or more water-soluble cationic polymers, amphoteric polymers, zwitterionic polymers, or a combination thereof; (b) passing the treated water through a membrane separation system; and (c) optionally, passing the permeate from step (b) through an additional membrane separation system.
  • FIG. 1 shows a schematic of one embodiment of the claimed invention.
  • FIG. 2 shows data for critical flux.
  • FIG. 3 shows data for sustainable flux.
  • UF Ultrafiltration
  • MF Microfiltration
  • NF Nanofiltration
  • RO means Reverse Osmosis
  • TMP Trans-membrane Pressure
  • NTU Nephelometric Turbidity Units.
  • MPE Membrane Performance Enhancer
  • TOC Total Organic Carbon
  • TSS Total Suspended Solids.
  • TS Total Solids
  • Platinum—Co means Platinum-Cobalt Color Units.
  • Amphoteric polymer means a polymer derived from both cationic monomers and anionic monomers, and, possibly, other non-ionic monomer(s). Amphoteric polymers can have a net positive or negative charge. The amphoteric polymer may also be derived from zwitterionic monomers and cationic or anionic monomers and possibly nonionic monomers. The amphoteric polymer is water-soluble.
  • “Cationic polymer” means a polymer having an overall positive charge.
  • the cationic polymers of this invention are prepared by polymerizing one or more cationic monomers, by copolymerizing one or more nonionic monomers and one or more cationic monomers, by condensing epichlorohydrin and a diamine or polyamine or condensing ethylenedichloride and ammonia or formaldehyde and an amine salt.
  • the cationic polymer is water-soluble.
  • Zwitterionic polymer means a polymer composed from zwitterionic monomers and, possibly, other non-ionic monomer(s). In zwitterionic polymers, all the polymer chains and segments within those chains are rigorously electrically neutral. Therefore, zwitterionic polymers represent a subset of amphoteric polymers, necessarily maintaining charge neutrality across all polymer chains and segments because both anionic charge and cationic charge are introduced within the same zwitterionic monomer. The zwitterionic polymer is water-soluble.
  • the membrane separation system of the present invention may comprise one or more types of membranes.
  • the number of membranes and orientation of membranes (submerged/external) depends on various factors known to those of ordinary skill in the art, e.g. the composition of the process water.
  • the membrane separation system has at least one membrane selected from the group consisting of: an ultrafiltration membrane; a microfiltration membrane; and a combination thereof.
  • the additional membrane separation system has a membrane selected from the group consisting of: an ultrafiltration membrane, a nanofiltration membrane; a reverse osmosis membrane; and a combination thereof.
  • membrane pore size is smaller than for the ultrafiltration membrane used in said membrane separation system.
  • the membrane separation system is a submerged membrane system, an external membrane separation system, or a combination thereof.
  • the additional membrane separation system is a submerged membrane system, external membrane separation system, or a combination thereof.
  • the membranes utilized may have various types of physical and chemical parameters.
  • the ultrafiltration membrane has a pore size in the range of 0.003 to 0.1 ⁇ m.
  • the microfiltration membrane has a pore size in the range of 0.1 to 10 ⁇ m.
  • the membrane has a hollow fiber configuration with outside-in or inside-out filtration mode.
  • the membrane has a flat sheet configuration.
  • the membrane has a tubular configuration.
  • the membrane has a multi-bore structure.
  • the membrane has a capillary configuration.
  • the membrane has spiral wound configuration.
  • the membrane is polymeric.
  • the membrane is inorganic. In yet another embodiment, the membrane is stainless steel.
  • the pond water prior to passing through a membrane separation system, is treated with an effective amount of one or more water-soluble cationic polymers, amphoteric polymers, zwitterionic polymers, or combination thereof.
  • water soluble polymers are referred to as MPEs.
  • the amphoteric polymers are selected from the group consisting of at least one of the following: dimethylaminoethyl acrylate methyl chloride quaternary salt (DMAEA.MCQ)/acrylic acid copolymer, diallyldimethylammonium chloride/acrylic acid copolymer, dimethylaminoethyl acrylate methyl chloride salt/N,N-dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)-ammonium betaine copolymer, acrylic acid/N,N-dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)-ammonium betaine copolymer and DMAEA.MCQ/Acrylic acid/N,N-dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)-ammonium betaine terpolymer.
  • the effective amount of amphoteric polymers is from about 1 ppm to about 500 ppm of active solids.
  • amphoteric polymers have a weight average molecular weight of about 5,000 to about 2,000,000 daltons.
  • amphoteric polymers have a cationic charge equivalent to an anionic charge equivalent ratio of about 4.0:6.0 to about 9.8:0.2.
  • the cationic polymers are selected from the group consisting of at least one of the following: polydiallyldimethylammonium chloride; polyethyleneimine; polyepiamine; polyepiamine crosslinked with ammonia or ethylenediamine; condensation polymer of ethylenedichloride and ammonia; condensation polymer of triethanolamine and tall oil fatty acid; poly(dimethylaminoethylmethacrylate sulfuric acid salt); and poly(dimethylaminoethylacrylate methyl chloride quaternary salt).
  • the cationic polymers are copolymers of acrylamide (AcAm) and one or more cationic monomers selected from the group consisting of: diallyldimethylammonium chloride, dimethylaminoethylacrylate methyl chloride quaternary salt, dimethylaminoethylmethacrylate methyl chloride quaternary salt and dimethylaminoethylacrylate benzyl chloride quaternary salt.
  • AcAm acrylamide
  • cationic monomers selected from the group consisting of: diallyldimethylammonium chloride, dimethylaminoethylacrylate methyl chloride quaternary salt, dimethylaminoethylmethacrylate methyl chloride quaternary salt and dimethylaminoethylacrylate benzyl chloride quaternary salt.
  • the effective amount of cationic polymers is from about 0.05 ppm to about 400 ppm active solids.
  • the cationic polymers have a cationic charge of at least about 5 mole percent.
  • the cationic polymers have a cationic charge of 100 mole percent.
  • the cationic polymers have a weight average molecular weight of about 100,000 to about 10,000,000 daltons.
  • the zwitterionic polymers are composed of about 1 to about 99 mole percent of N,N-dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)-ammonium betaine and about 99 to about 1 mole percent of one or more nonionic monomers.
  • the effective amount of zwitterionic polymers is from about 1 ppm to about 500 ppm active solids.
  • utilized process water is sent to a tailings settling pond.
  • Water from the tailings settling pond is treated with MPE chemistry and pumped into a membrane separation system that either has a UF or MF membrane.
  • MPEs may be added in-line before the membrane system (external or submerged) or directly in the membrane tank when submerged membrane systems are utilized.
  • the water is transferred/pumped from the pond via various techniques that would be apparent to one of ordinary skill in the art.
  • the permeate flows back for use in a process or is further purified through an additional membrane separation system, which contains a NF or RO membrane. Permeate from the additional membrane separation system is sent back for use in the process.
  • the concentrate from either membrane separation system is either disposed of, dewatered, or a combination thereof. In the case of dewatering, the liquid is sent back to the pond or reused in a process with or without further treatment.
  • Water from a tailings settling pond has high levels of hydrocarbons.
  • the pond water contains TS from about 10 to 10,000 ppm; TSS from about 2 to about 1000 ppm; oil and grease from about 1 to about 100 ppm; TOC from about 1 to about 1000 ppm; pH from about 7 to about 9; turbidity from about 2 to about 500 NTU; and color from about 5 to about 100 Pt—Co units.
  • PRODUCT A contains DMAEA.MCQ/AcAm copolymer with 50 mole % cationic charge.
  • PRODUCT A is available from Nalco Company, Naperville, Ill.
  • Pond water used for the following experiments was obtained from a Canadian oil sands processing facility.
  • the pond water had the following characteristics: TS:360 ppm; TSS:49 ppm; oil and grease:27 ppm; TOC: 53 ppm; pH:8.8; conductivity:3.1 mS/cm; turbidity:78 NTU; and color:55 Pt—Co units.
  • the pond water was added to a tank with an overhead mixer and was treated with 3 ppm or 8 ppm of PRODUCT A (determined based on jar tests). The mixture was mixed with an overhead mixer and was operated for one minute at high speed followed by one minute at slow speed. The treated water was then placed in a membrane tank in which a flat plate microfiltration (MF) membrane, purchased from Yuasa, Japan, was submerged. Critical and sustainable fluxes through the membrane were measured with control (untreated) and treated pond water.
  • MF flat plate microfiltration
  • Critical flux is the flux above which, the membrane gets fouled severely and the trans-membrane pressure (TMP) rises dramatically. Therefore, determination of critical flux is important.
  • Critical flux determination gives an idea for sustainable flux, which is a flux at which membranes can be operated for longer duration before requiring cleaning. Based on several studies known to those of ordinary skill in the art, sustainable flux is usually 60-70% of critical flux.
  • Sustainable flux determines the plant capital cost (amount of membrane area, associated accessories and land) and operating cost (cleaning, labor, etc).
  • TMP trans-membrane pressure
  • FIG. 2 shows critical flux data of pond water through the membrane at the following data points: control (No PRODUCT A); 3 ppm of PRODUCT A; and 8 ppm of PRODUCT A. It is apparent from FIG. 2 that the critical flux in the control was about 75-80 LMH, whereas with PRODUCT A treated pond water, critical flux was not distinctly detected. The absolute TMP and rate of TMP increase at any flux was lowest with 8 ppm PRODUCT A treated pond water.
  • FIG. 3 shows the sustainability of 53 LMH flux with control and 8 ppm PRODUCT A treated pond water. It is clearly seen that within 3 hrs, the TMP in control increased to about 0.8 psi, whereas with treatment, the TMP increased to only 0.5 psi, even after 24 hrs of filtration. In fact, with the treated water having a flux of 72 LMH, the rate of TMP increase was still very low and TMP reached only 0.7 psi with 8 hrs of filtration.
  • Table 1 shows improvement in water quality after microfiltration of control and treated pond water.
  • the turbidity was consistently ⁇ 0.2 NTU with both control and treated pond water.
  • the color removal was also higher after 8 ppm PRODUCT A treatment than in control.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
US11/872,288 2007-10-15 2007-10-15 Purification of oil sands pond water Abandoned US20090095678A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US11/872,288 US20090095678A1 (en) 2007-10-15 2007-10-15 Purification of oil sands pond water
CA2704741A CA2704741C (en) 2007-10-15 2008-10-10 Purification of oil sands pond water
PCT/US2008/079446 WO2009052018A1 (en) 2007-10-15 2008-10-10 Purification of oil sands pond water
RU2010115218/05A RU2487085C9 (ru) 2007-10-15 2008-10-10 Способ увеличения потока воды из отстойного резервуара процесса переработки нефтеносных песков через мембранную систему разделения и очистки воды
EP08839112A EP2203391A1 (en) 2007-10-15 2008-10-10 Purification of oil sands pond water
CN200880115843A CN101855177A (zh) 2007-10-15 2008-10-10 油砂池水的净化
US12/881,303 US8597515B2 (en) 2007-10-15 2010-10-04 Purification of oil sands pond water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/872,288 US20090095678A1 (en) 2007-10-15 2007-10-15 Purification of oil sands pond water

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/881,303 Continuation US8597515B2 (en) 2007-10-15 2010-10-04 Purification of oil sands pond water

Publications (1)

Publication Number Publication Date
US20090095678A1 true US20090095678A1 (en) 2009-04-16

Family

ID=40070763

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/872,288 Abandoned US20090095678A1 (en) 2007-10-15 2007-10-15 Purification of oil sands pond water
US12/881,303 Active US8597515B2 (en) 2007-10-15 2010-10-04 Purification of oil sands pond water

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/881,303 Active US8597515B2 (en) 2007-10-15 2010-10-04 Purification of oil sands pond water

Country Status (6)

Country Link
US (2) US20090095678A1 (zh)
EP (1) EP2203391A1 (zh)
CN (1) CN101855177A (zh)
CA (1) CA2704741C (zh)
RU (1) RU2487085C9 (zh)
WO (1) WO2009052018A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127217A1 (en) * 2009-11-03 2011-06-02 Syncrude Canada Ltd. In Trust For The Owners Of The Syncrude Project Oil sands process water treatment for reuse
US20110192771A1 (en) * 2010-02-09 2011-08-11 World Chemical Co., Ltd. Solid-liquid separator with self-priming pump
WO2016058961A1 (en) * 2014-10-15 2016-04-21 Veolia Water Solutions & Technologies Support Treatment of produced water, particularly obtained from a chemically enhanced oil recovery process using viscosity-increasing polymers
US9663388B2 (en) 2013-08-09 2017-05-30 Exxonmobil Upstream Research Company Method of using a silicate-containing stream from a hydrocarbon operation or from a geothermal source to treat fluid tailings by chemically-induced micro-agglomeration

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009314391B2 (en) 2008-10-29 2012-08-30 The Chemours Company Fc, Llc. Treatment of tailings streams
US10259723B2 (en) 2010-05-21 2019-04-16 Znano Llc Self-assembled surfactant structures
EP2571607A4 (en) 2010-05-21 2016-12-21 Adrian Brozell SURFACE ASSISTING SURFACE STRUCTURES
CA2803904C (en) 2010-07-26 2014-01-28 Sortwell & Co. Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent anionic polymers for clay aggregation
US8721896B2 (en) 2012-01-25 2014-05-13 Sortwell & Co. Method for dispersing and aggregating components of mineral slurries and low molecular weight multivalent polymers for mineral aggregation
WO2015184471A2 (en) * 2014-05-30 2015-12-03 Znano Llc Systems for treating water
CN104140168A (zh) * 2014-07-17 2014-11-12 瓮福（集团）有限责任公司 一种处理选矿尾矿水的方法
US9127427B1 (en) 2015-02-09 2015-09-08 Technika Engineering Ltd. Recovering mature fine tailings from oil sands tailings ponds
CN105523608A (zh) * 2015-12-31 2016-04-27 杭州仁顺环保科技有限公司 化妆品铝制包装盒行业的含镍染色液废水的零排放工艺
AU2017253352A1 (en) 2016-04-21 2018-10-18 Basf Se Amphoteric polymer, process for production thereof, and use thereof, to treat aqueous dispersions
RU2660061C2 (ru) * 2016-08-09 2018-07-04 Общество с ограниченной ответственностью "7 Тех" Малоотходный способ очистки воды от взвешенных частиц (варианты)
CN106186192A (zh) * 2016-08-25 2016-12-07 江苏嘉恒环境科技有限公司 一种水净化设备
US10597588B2 (en) 2016-10-27 2020-03-24 Fccl Partnership Process and system to separate diluent
CN109999662A (zh) * 2019-03-26 2019-07-12 黑龙江八一农垦大学 一种两性离子纳滤膜及其制备方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956122A (en) * 1972-12-18 1976-05-11 American Cyanamid Company Cationic arylamide-styrene copolymers and flocculation of sewage therewith
US4414117A (en) * 1981-05-11 1983-11-08 Suncor, Inc. Decarbonation of tailings sludge to improve settling
US4715962A (en) * 1986-08-15 1987-12-29 Nalco Chemical Company Ampholytic diallyldimethyl ammonium chloride (DADMAC) copolymers and terpolymers for water clarification
US4792406A (en) * 1988-05-23 1988-12-20 Nalco Chemical Company Method for dewatering a slurry using a twin belt press with cationic amine salts
US4848460A (en) * 1988-11-04 1989-07-18 Western Research Institute Contained recovery of oily waste
US4851123A (en) * 1986-11-20 1989-07-25 Tetra Resources, Inc. Separation process for treatment of oily sludge
US5330546A (en) * 1992-08-18 1994-07-19 Nalco Chemical Company Hydrophobic polyelectrolyte coagulants for concentrating coal tailings
US5476522A (en) * 1995-03-08 1995-12-19 Nalco Chemical Company Method for dewatering coal tailings using DADMAC/vinyl trialkoxysilane copolymers as a coagulant
US5804077A (en) * 1995-02-28 1998-09-08 Smith; Russell G. Increasing settling rate of fine solids in oil sand tailings
US20030159990A1 (en) * 2002-01-04 2003-08-28 Collins John H. Method of using water soluble polymers in a membrane biological reactor
US20040168980A1 (en) * 2002-01-04 2004-09-02 Musale Deepak A. Combination polymer treatment for flux enhancement in MBR

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723310A (en) * 1969-10-07 1973-03-27 Int Minerals & Chem Corp Process for flocculating oil and clay containing slimes
CA1180827A (en) * 1982-03-23 1985-01-08 Michael Heskins Polymeric flocculants
CA1225003A (en) * 1983-08-26 1987-08-04 David R. Mccoy Demulsification of bitumen emulsions
CA1234764A (en) * 1984-07-18 1988-04-05 Robert Y.M. Huang Treatment of oil recovery process waste water
US4676908A (en) * 1984-11-19 1987-06-30 Hankin Management Services Ltd. Waste water treatment
US4851126A (en) * 1987-11-25 1989-07-25 Baxter International Inc. Apparatus and methods for generating platelet concentrate
FI923315A (fi) * 1992-07-21 1994-01-22 Kemira Oy Foerfarande foer foerbaettrande av avlappsvattenslammens vattenavskiljningsfoermaoga
RU2056913C1 (ru) * 1993-07-27 1996-03-27 Тамбовское акционерное общество "Комсомолец" Мембранный аппарат для очистки газов и жидкостей
WO1996005146A1 (en) * 1994-08-12 1996-02-22 Cytec Technology Corp. A method of stabilizing slurries
GB0029805D0 (en) * 2000-12-07 2001-01-17 Hychem Uk Ltd Improvements in and relating to separated solids
CA2606190A1 (en) * 2005-04-27 2006-11-02 Hw Process Technologies, Inc. Treating produced waters
EP2397534A1 (en) * 2005-10-14 2011-12-21 Aquero Company LLC Carbohydrate and acrylamide polymers useful as flocculants in agricultural settings
CA2582059A1 (en) * 2007-03-16 2008-09-16 Chevron Canada Limited A method for producing a non-segregating waste stream

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956122A (en) * 1972-12-18 1976-05-11 American Cyanamid Company Cationic arylamide-styrene copolymers and flocculation of sewage therewith
US4414117A (en) * 1981-05-11 1983-11-08 Suncor, Inc. Decarbonation of tailings sludge to improve settling
US4715962A (en) * 1986-08-15 1987-12-29 Nalco Chemical Company Ampholytic diallyldimethyl ammonium chloride (DADMAC) copolymers and terpolymers for water clarification
US4851123A (en) * 1986-11-20 1989-07-25 Tetra Resources, Inc. Separation process for treatment of oily sludge
US4792406A (en) * 1988-05-23 1988-12-20 Nalco Chemical Company Method for dewatering a slurry using a twin belt press with cationic amine salts
US4848460A (en) * 1988-11-04 1989-07-18 Western Research Institute Contained recovery of oily waste
US5330546A (en) * 1992-08-18 1994-07-19 Nalco Chemical Company Hydrophobic polyelectrolyte coagulants for concentrating coal tailings
US5804077A (en) * 1995-02-28 1998-09-08 Smith; Russell G. Increasing settling rate of fine solids in oil sand tailings
US5476522A (en) * 1995-03-08 1995-12-19 Nalco Chemical Company Method for dewatering coal tailings using DADMAC/vinyl trialkoxysilane copolymers as a coagulant
US5622647A (en) * 1995-03-08 1997-04-22 Nalco Chemical Company Dadmac/vinyl trialkoxysilane copolymers for dewatering in the mining industry
US20030159990A1 (en) * 2002-01-04 2003-08-28 Collins John H. Method of using water soluble polymers in a membrane biological reactor
US20040168980A1 (en) * 2002-01-04 2004-09-02 Musale Deepak A. Combination polymer treatment for flux enhancement in MBR

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110127217A1 (en) * 2009-11-03 2011-06-02 Syncrude Canada Ltd. In Trust For The Owners Of The Syncrude Project Oil sands process water treatment for reuse
US20110192771A1 (en) * 2010-02-09 2011-08-11 World Chemical Co., Ltd. Solid-liquid separator with self-priming pump
US9663388B2 (en) 2013-08-09 2017-05-30 Exxonmobil Upstream Research Company Method of using a silicate-containing stream from a hydrocarbon operation or from a geothermal source to treat fluid tailings by chemically-induced micro-agglomeration
WO2016058961A1 (en) * 2014-10-15 2016-04-21 Veolia Water Solutions & Technologies Support Treatment of produced water, particularly obtained from a chemically enhanced oil recovery process using viscosity-increasing polymers
CN106795749A (zh) * 2014-10-15 2017-05-31 Snf公司 使用增粘高分子化合物的化学强化油采收方法
CN107001089A (zh) * 2014-10-15 2017-08-01 威立雅水务技术支持公司 采出水、特别是从使用增粘聚合物的化学强化采油工艺中获得的采出水的处理
US10760399B2 (en) 2014-10-15 2020-09-01 Snf Sa Chemically enhanced oil recovery method using viscosity-increasing polymeric compounds
US10961836B2 (en) 2014-10-15 2021-03-30 Veolia Water Solutions & Technologies Support Treatment of produced water, particularly obtained from a chemically enhanced oil recovery process using viscosity-increasing polymers

Also Published As

Publication number Publication date
WO2009052018A1 (en) 2009-04-23
US8597515B2 (en) 2013-12-03
RU2487085C2 (ru) 2013-07-10
CN101855177A (zh) 2010-10-06
CA2704741C (en) 2017-05-02
CA2704741A1 (en) 2009-04-23
RU2010115218A (ru) 2011-11-27
RU2487085C9 (ru) 2013-09-27
EP2203391A1 (en) 2010-07-07
US20110108480A1 (en) 2011-05-12

Similar Documents

Publication Publication Date Title
US8597515B2 (en) Purification of oil sands pond water
CA2660610C (en) Method of improving performance of ultrafiltration or microfiltration membrane process in landfill leachate treatment
CA2660597C (en) Method of improving performance of ultrafiltration or microfiltration membrane process in backwash water treatment
AU2007292849B2 (en) Method of heavy metal removal from industrial wastewater using submerged ultrafiltration or microfiltration membranes
CA2687237C (en) Method of heavy metals removal from municipal wastewater
US20080197075A1 (en) Removing mercury and other heavy metals from industrial wastewater
CN112739448B (zh) 膜用水处理药品及膜处理方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MUSALE, DEEPAK A.;SOMMESE, ANTHONY G.;GOODMAN, WALTER H.;REEL/FRAME:019962/0782

Effective date: 20071011

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, NEW YO

Free format text: SECURITY AGREEMENT;ASSIGNORS:NALCO COMPANY;CALGON LLC;NALCO ONE SOURCE LLC;AND OTHERS;REEL/FRAME:022703/0001

Effective date: 20090513

Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT,NEW YOR

Free format text: SECURITY AGREEMENT;ASSIGNORS:NALCO COMPANY;CALGON LLC;NALCO ONE SOURCE LLC;AND OTHERS;REEL/FRAME:022703/0001

Effective date: 20090513

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:035771/0668

Effective date: 20111201

AS Assignment

Owner name: NALCO COMPANY, ILLINOIS

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:041808/0713

Effective date: 20111201

AS Assignment

Owner name: NALCO COMPANY LLC, DELAWARE

Free format text: CHANGE OF NAME;ASSIGNOR:NALCO COMPANY;REEL/FRAME:041835/0903

Effective date: 20151229

Owner name: ECOLAB USA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NALCO COMPANY LLC;CALGON CORPORATION;CALGON LLC;AND OTHERS;REEL/FRAME:041836/0437

Effective date: 20170227

AS Assignment

Owner name: ECOLAB USA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NALCO COMPANY;REEL/FRAME:042147/0420

Effective date: 20170227