On-line measurement of oil contaminants in water by filter-based infrared analyzers

Dissertation

Pentti Niemelä

Research output: ThesisDissertationMonograph

Abstract

The properties of a dedicated infrared analyzer for on-line measurement of the oil content of water, the Oili analyzer, are evaluated theoretically and with laboratory measurements. The analyzer was originally developed for controlling the discharge of ballast and bilge water from oil tankers and more than 200 such instruments have now been supplied for that purpose, representing about 10 % of the total market. Some technical improvements are suggested, and the improved instrument is shown to be capable of measuring oil in water to an accuracy of__+20 % down to a detection limit of _+5 - 10 ppm in the presence of high concentrations of interfering components and under varying environmental conditions. This opens up new potential applications for the instrument, e.g. the monitoring of water discharges from oil and gas production platforms. The infrared analyzer responds only to the dispersed oil fraction, and if the dissolved fraction is of interest as well, the instrument must be equipped with a UV option, as suggested here.
Original languageEnglish
QualificationDoctor Degree
Awarding Institution
  • University of Oulu
Supervisors/Advisors
  • Karras, Matti, Advisor, External person
Award date5 Jan 1995
Place of PublicationEspoo
Publisher
Print ISBNs951-38-4646-6
Publication statusPublished - 1994
MoE publication typeG4 Doctoral dissertation (monograph)

Fingerprint

filter
pollutant
oil
ballast water
gas production
oil production
water
environmental conditions
market
monitoring
bilge water
detection
oil tanker
laboratory
measuring

Keywords

  • water
  • contamination
  • contaminants
  • oil
  • detectors
  • on-line measurement systems
  • infrared spectrometers
  • filtration
  • samples
  • treatment
  • modelling
  • homogenizing
  • analyzers
  • theses

Cite this

Niemelä, P. (1994). On-line measurement of oil contaminants in water by filter-based infrared analyzers: Dissertation. Espoo: VTT Technical Research Centre of Finland.
Niemelä, Pentti. / On-line measurement of oil contaminants in water by filter-based infrared analyzers : Dissertation. Espoo : VTT Technical Research Centre of Finland, 1994. 118 p.
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title = "On-line measurement of oil contaminants in water by filter-based infrared analyzers: Dissertation",
abstract = "The properties of a dedicated infrared analyzer for on-line measurement of the oil content of water, the Oili analyzer, are evaluated theoretically and with laboratory measurements. The analyzer was originally developed for controlling the discharge of ballast and bilge water from oil tankers and more than 200 such instruments have now been supplied for that purpose, representing about 10 {\%} of the total market. Some technical improvements are suggested, and the improved instrument is shown to be capable of measuring oil in water to an accuracy of__+20 {\%} down to a detection limit of _+5 - 10 ppm in the presence of high concentrations of interfering components and under varying environmental conditions. This opens up new potential applications for the instrument, e.g. the monitoring of water discharges from oil and gas production platforms. The infrared analyzer responds only to the dispersed oil fraction, and if the dissolved fraction is of interest as well, the instrument must be equipped with a UV option, as suggested here.",
keywords = "water, contamination, contaminants, oil, detectors, on-line measurement systems, infrared spectrometers, filtration, samples, treatment, modelling, homogenizing, analyzers, theses",
author = "Pentti Niemel{\"a}",
note = "Project code: ELE480014",
year = "1994",
language = "English",
isbn = "951-38-4646-6",
series = "VTT Publications",
publisher = "VTT Technical Research Centre of Finland",
number = "208",
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school = "University of Oulu",

}

On-line measurement of oil contaminants in water by filter-based infrared analyzers : Dissertation. / Niemelä, Pentti.

Espoo : VTT Technical Research Centre of Finland, 1994. 118 p.

Research output: ThesisDissertationMonograph

TY - THES

T1 - On-line measurement of oil contaminants in water by filter-based infrared analyzers

T2 - Dissertation

AU - Niemelä, Pentti

N1 - Project code: ELE480014

PY - 1994

Y1 - 1994

N2 - The properties of a dedicated infrared analyzer for on-line measurement of the oil content of water, the Oili analyzer, are evaluated theoretically and with laboratory measurements. The analyzer was originally developed for controlling the discharge of ballast and bilge water from oil tankers and more than 200 such instruments have now been supplied for that purpose, representing about 10 % of the total market. Some technical improvements are suggested, and the improved instrument is shown to be capable of measuring oil in water to an accuracy of__+20 % down to a detection limit of _+5 - 10 ppm in the presence of high concentrations of interfering components and under varying environmental conditions. This opens up new potential applications for the instrument, e.g. the monitoring of water discharges from oil and gas production platforms. The infrared analyzer responds only to the dispersed oil fraction, and if the dissolved fraction is of interest as well, the instrument must be equipped with a UV option, as suggested here.

AB - The properties of a dedicated infrared analyzer for on-line measurement of the oil content of water, the Oili analyzer, are evaluated theoretically and with laboratory measurements. The analyzer was originally developed for controlling the discharge of ballast and bilge water from oil tankers and more than 200 such instruments have now been supplied for that purpose, representing about 10 % of the total market. Some technical improvements are suggested, and the improved instrument is shown to be capable of measuring oil in water to an accuracy of__+20 % down to a detection limit of _+5 - 10 ppm in the presence of high concentrations of interfering components and under varying environmental conditions. This opens up new potential applications for the instrument, e.g. the monitoring of water discharges from oil and gas production platforms. The infrared analyzer responds only to the dispersed oil fraction, and if the dissolved fraction is of interest as well, the instrument must be equipped with a UV option, as suggested here.

KW - water

KW - contamination

KW - contaminants

KW - oil

KW - detectors

KW - on-line measurement systems

KW - infrared spectrometers

KW - filtration

KW - samples

KW - treatment

KW - modelling

KW - homogenizing

KW - analyzers

KW - theses

M3 - Dissertation

SN - 951-38-4646-6

T3 - VTT Publications

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Niemelä P. On-line measurement of oil contaminants in water by filter-based infrared analyzers: Dissertation. Espoo: VTT Technical Research Centre of Finland, 1994. 118 p.