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- From: whitbeck@equinox.unr.edu (Michael Whitbeck)
- Newsgroups: sci.chem
- Subject: Re: Oil Spills
- Message-ID: <4861@equinox.unr.edu>
- Date: 18 Nov 92 01:49:34 GMT
- References: <1e9engINNmdl@usenet.INS.CWRU.Edu> <92322.023034KRK4@psuvm.psu.edu>
- Organization: University of Nevada, Reno
- Lines: 64
-
- In article <92322.023034KRK4@psuvm.psu.edu> KRK4@psuvm.psu.edu (Kyle R. Krom) writes:
- :
- : As the original poster, I think I should clarify ...
- :
- : Obviously, the hardest part of cleaning up the oil at this point is
- : the oil washed up on shore, but if it is easily retrieved from the
- : water's surface, as some have claimed, then it should not necessarily
- : be able to make it to the shore. Let me put it like this: if a spill
- : were to occur in the middle of the ocean, could it be entirely (or
- : even mostly) cleaned up? I should also say in response to certain
- : replies so far that:
- :
- : 1. Oil molecules, being mostly alkanes, having an attraction
- : for water molecules is a novel concept for me. Are there
- : perhaps specific additives causing this?
-
- I suppose a distinction should be made between commercial oil
- products (e.g. light lube oil) and crude oil. I guess most folk
- assumed you meant crude- most often associated with major spills.
-
- In this case (crude oil) some of the oil will undergo oxidation
- (there may be some already there? any comments?). The oxidized
- portion can provide the polarity necessary to increase
- interaction with water. (bacteria, O2 and sunlight start
- degrading some of the oil)
-
- However, even a pure simple alkane has finite aqueous
- solubility. Methane for instance is as about as soluble in pure
- water as is O2.
-
- : 2. If emulsion form, I would have thought that a mixture of
- : oil (which floats on water) , water, and air would float
- : rather than sink. If not, then why not?
-
- Some oils are denser than water. I should imagine bunker fuels
- fall into this category. Anyone have some specifics on this?
-
- : 3. If oil is able to pass by a floating retainer just because
- : it thins out to monolayer thickness, then surely a float
- : which extends a few feet under the surface would prevent
- : this loss?
-
- The sea is not a very considerate surface.... waves!
- A monolayer sheen can still be
- dispersed/solubilized/micellized(I suspect) by application of
- surfactants.
-
-
- :
- : I don't mean to be a pain in the neck, but I'm serious about this.
-
- A lot of people are! I would expect that a literature search
- on the library of congress (via gopher say) would generate a
- ton of references. I know a lot has been published on oil spills
- over the years.
-
- You might try contacting the USGS and US Coast Guard- their PR
- people may have free bulletins and info sheets. If you are
- REALLY serious do what all good scientists do-------
-
- visit the library! After all any idiot can post here :-)
- [I know I do]
-
- Mike
-