Installation, operating and maintenance manual SKIT/S-DEB
3rd print version
page 32
4 – Important terms and definitions for bilge water oil separator
RWO GmbH
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Marine Water Technology
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Bremen
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Germany
Issue 2014-04-10
4
Important terms and definitions for bilge water oil separator
4.1
Test and certificates of the unit
Test and certification acc. to regulation by German See-
Berufsgenossenschaft - Schiffssicherheitsabteilung,
basing on IMO MEPC.107(49)
4.2
Structural measures to prevent sea pollution by oil
Defined in MARPOL 73/78, Annex I and in the Helsinki
Convention HELCOM, Annex IV, Regulation 4, Annex 1.
4.3
Adsorption
Adsorption (from Latin adsorptio, adsorbere „suck (in)“)
refers to the enrichment of substances from gases or
liquids on the surface of a solid body, or more general at
the border between two phases.
4.4
Emulsion
Emulsion designates a finely dispersed mixture of two
liquids which normally cannot be mixed without visible de-
mixing
4.5
Coalescence
Coalescence in general designates the flowing together of
colloidal particles, e. g. emulsion drops. These must meet
and merge. The surface of the newly formed "drop" is now
smaller than the sum of the individual drops, i.e. the
surface is descreased. This surface decrease causes a
reduction of the drop's friction resistance so that the drop
rises or sinks faster than without coalescence.
