Thursday, 27 June 2013
Monday, 24 June 2013
Wednesday, 12 June 2013
ilfraexpo link
http://ilfraexpo.wordpress.com
I am currently making a collection of works, water fearing for ilfraexpo.
Making casts within the church this coming weekend.
Sunday, 2 June 2013
vegetable oil spills
In general, vegetable oils will behave similarly to mineral oils in the initial stage of a spill. To this extent, they will tend to float and spread on the surface of the water. However, vegetable oils tend to be even less soluble in water than mineral oils; they do not undergo dispersion in the water column nor will they evaporate to any extent.
Depending on their pour point (the temperature at which solidification commences) and the sea surface temperature, vegetable oils may form solid lumps when spilled that will float on the water surface. These discrete lumps have little tendency to coalesce as a surface slick. Over time and dependent on the prevailing conditions the product may accumulate sediment and may sink to the sea floor.
Historically, vegetable oils have been considered relatively benign, non-toxic and therefore of limited concern to the environment. However, this generalisation has been demonstrated to be incorrect. Previous experience has shown that both chronic and acute pollution incidents can lead to deleterious effects. This awareness has led to the reclassification of many vegetable oils as category Y (hazardous) products under Annex II of the MARPOL Convention with associated limitations on their carriage.
The primary environmental consequences of spills of vegetable oils are seen in relation to surface dwelling organisms where oil can lead to smothering and suffocation. Examples include oiling of bird plumage and animal fur. However, vegetable oils will also readily form solids which tend to have less smothering impact on surface organisms. A polymerised vegetable oil may form an impermeable barrier on the shoreline with potentially serious environmental and economic consequences.
the international tanker owners pollution federation limited.2013
polyisobutene
polyisobutene has been named as the clear sticky material dumped in the sea off the south coast early this year. As a hydrophobic material it repells water, sticks to feathers and everything else. Described by those cleaning up the birds the material contaminated, like a silicone, wallpaper paste or vaseline.
http://www.thisiscornwall.co.uk/Beachgoers-greeted-gruesome-sight/story-18922371-detail/story.html#axzz2V3adE2Wk
http://www.thisiscornwall.co.uk/Beachgoers-greeted-gruesome-sight/story-18922371-detail/story.html#axzz2V3adE2Wk
storm oil
other ideas of throwing oil into the sea to ease a safe passage through choppy waters. In the days of mass-whaling ships would hang a lump of blubber over the side to quell the surface chop on the sea.
This is true. Put you do not use motor oil, you use a bio-degradable oil such as a vegetable oil. It would be used with a sea anchor that will dispense a small amount at a time. Could also be used with a mooring buoy.
It is called "Storm Oil" - oil for distribution on the surface of a body of water to calm wave activity.
A Sea Anchor would be used to hold the vessel bow to the wind and could have a dispenser to allow a slow amount of oil on the water to help with wave activity
It is called "Storm Oil" - oil for distribution on the surface of a body of water to calm wave activity.
A Sea Anchor would be used to hold the vessel bow to the wind and could have a dispenser to allow a slow amount of oil on the water to help with wave activity
If I remember back to when I took my U.S. Coast Guard examine for 3rd A/E this was a questions in "generals" section and the answer is correct.
Sorry but if it comes between dying or polluting water, I would pour all of the oil I had overboard.
Also this is for small boats, to keep the waves from cresting. It could save a life!
Sorry but if it comes between dying or polluting water, I would pour all of the oil I had overboard.
Also this is for small boats, to keep the waves from cresting. It could save a life!
'does putting oil into water help boats in a storm?'
mystery material
http://www.guardian.co.uk/environment/2013/feb/06/oil-additive-polymer-seabird-death
new work for colony
experiments for a new piece, based around fishing weights i have seen around, from wales, to morocco, scotland and spain. A continued language of using old plastic bottles, concrete and wood. To most they seem functionless but to others have a function and purpose. they look kind of primitive or tribal. making do and getting by.
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