NL7513263A - Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase - Google Patents

Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase

Info

Publication number
NL7513263A
NL7513263A NL7513263A NL7513263A NL7513263A NL 7513263 A NL7513263 A NL 7513263A NL 7513263 A NL7513263 A NL 7513263A NL 7513263 A NL7513263 A NL 7513263A NL 7513263 A NL7513263 A NL 7513263A
Authority
NL
Netherlands
Prior art keywords
overflow
phase
oil
discontinuously
gas
Prior art date
Application number
NL7513263A
Other languages
Dutch (nl)
Original Assignee
Ballast Nedam Groep Nv
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 Ballast Nedam Groep Nv filed Critical Ballast Nedam Groep Nv
Priority to NL7513263A priority Critical patent/NL7513263A/en
Publication of NL7513263A publication Critical patent/NL7513263A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10—Devices for removing the material from the surface
    • 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
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Floating Material (AREA)

Abstract

A less dense liqu. (oil) floating on a denser liq. (ater) is removed by allowing it to flow over a weir at the top of a vessel. The vessel is otherwise closed at the top. The overflow occurs batchwise. During a collection period the surface of the oil is kept below the weir by a gas vol. in the headspace. During the overflow period the vol. of the gas is produced so that light liq. overflows. Used in sepd. oil from water, esp. during marine drilling operations. Without the headspace gas the overflow is continuous and the light phase is strongly contaminated with heavy phase as it overflows. The method described reduces the contamination.
NL7513263A 1975-11-12 1975-11-12 Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase NL7513263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7513263A NL7513263A (en) 1975-11-12 1975-11-12 Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7513263A NL7513263A (en) 1975-11-12 1975-11-12 Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase

Publications (1)

Publication Number Publication Date
NL7513263A true NL7513263A (en) 1977-05-16

Family

ID=19824843

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7513263A NL7513263A (en) 1975-11-12 1975-11-12 Overflow of light phase from a liquid separator - discontinuously to minimise contamination by heavy phase

Country Status (1)

Country Link
NL (1) NL7513263A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed