SE9201428L - Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater - Google Patents

Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater

Info

Publication number
SE9201428L
SE9201428L SE9201428A SE9201428A SE9201428L SE 9201428 L SE9201428 L SE 9201428L SE 9201428 A SE9201428 A SE 9201428A SE 9201428 A SE9201428 A SE 9201428A SE 9201428 L SE9201428 L SE 9201428L
Authority
SE
Sweden
Prior art keywords
oil
heavy metals
residues
simultaneous reduction
laden wastewater
Prior art date
Application number
SE9201428A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE500177C2 (en
SE9201428D0 (en
Inventor
Tord Georg Eriksson
Original Assignee
Tord Georg Eriksson
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 Tord Georg Eriksson filed Critical Tord Georg Eriksson
Priority to SE9201428A priority Critical patent/SE500177C2/en
Publication of SE9201428D0 publication Critical patent/SE9201428D0/en
Priority to PCT/SE1993/000394 priority patent/WO1993022242A1/en
Priority to FI945200A priority patent/FI945200L/en
Publication of SE9201428L publication Critical patent/SE9201428L/en
Publication of SE500177C2 publication Critical patent/SE500177C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/047—Breaking emulsions with separation aids
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/44—Nature of the water, waste water, sewage or sludge to be treated from vehicle washing facilities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Specific Substances (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The final concentrations of heavy metals and oil in oil contaminated wastewater intended for biological purification are reduced by adding an easily soluble sulfide and an easily soluble orthophosphate. The separation of oil and heavy metal sludge may be done in conventional, gravity based equipment for sedimentation as oil separators or lamellae separators.
SE9201428A 1992-05-06 1992-05-06 Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater SE500177C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9201428A SE500177C2 (en) 1992-05-06 1992-05-06 Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater
PCT/SE1993/000394 WO1993022242A1 (en) 1992-05-06 1993-05-05 Wastewater purification
FI945200A FI945200L (en) 1992-05-06 1993-05-05 Wastewater treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9201428A SE500177C2 (en) 1992-05-06 1992-05-06 Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater

Publications (3)

Publication Number Publication Date
SE9201428D0 SE9201428D0 (en) 1992-05-06
SE9201428L true SE9201428L (en) 1993-11-07
SE500177C2 SE500177C2 (en) 1994-05-02

Family

ID=20386164

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9201428A SE500177C2 (en) 1992-05-06 1992-05-06 Process for simultaneous reduction of residues of heavy metals and oil in oil-laden wastewater

Country Status (3)

Country Link
FI (1) FI945200L (en)
SE (1) SE500177C2 (en)
WO (1) WO1993022242A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512475C2 (en) * 1994-04-28 2000-03-20 Tord Georg Eriksson Procedure for purification and reuse of wastewater
CA2137996C (en) * 1994-11-15 2007-10-16 Rikkert J. Vos Treatment process for contaminated waste
US5877393A (en) * 1996-08-30 1999-03-02 Solucorp Industries, Ltd. Treatment process for contaminated waste
CN110104704B (en) * 2019-05-31 2023-07-25 青岛贝索科技有限公司 Method and device for treating dirty oil by sulfur-containing sewage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137341A1 (en) * 1981-09-19 1983-04-07 Henkel KGaA, 4000 Düsseldorf METHOD FOR REGENERATING AQUEOUS DEGREASING AND CLEANING SOLUTIONS
US4432880A (en) * 1981-12-10 1984-02-21 Richard S. Talbot And Associates Process for the removal of heavy metals from aqueous solution
NL8700498A (en) * 1987-02-27 1988-09-16 Dhv Raadgevend Ing METHOD FOR THE REMOVAL OF HEAVY METALS FROM WASTE WATER.
SE469060B (en) * 1991-04-29 1993-05-10 Tord Georg Eriksson Demulsification process

Also Published As

Publication number Publication date
FI945200A0 (en) 1994-11-04
SE500177C2 (en) 1994-05-02
FI945200A7 (en) 1994-11-04
FI945200L (en) 1994-11-04
SE9201428D0 (en) 1992-05-06
WO1993022242A1 (en) 1993-11-11

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