Last edited by Sarisar
Tuesday, August 17, 2021 | History

3 edition of feasibility of oil spill dispersant application in the Southern Beaufort Sea found in the catalog.

feasibility of oil spill dispersant application in the Southern Beaufort Sea

P. B. Hildebrand

feasibility of oil spill dispersant application in the Southern Beaufort Sea

a report submitted to Research and Development Division, Environmental Emergency Branch, Environmental Impact Control Directorate, Environmental Protection Service, Department of Fisheries and Environment

by P. B. Hildebrand

  • 32 Want to read
  • 27 Currently reading

Published by Minister of Supply and Services Canada in [Ottawa?] .
Written in English

    Places:
  • Canada.
    • Subjects:
    • Oil pollution of the sea -- Canada.,
    • Oil spills -- Canada.

    • Edition Notes

      StatementP.B. Hildebrand, A.A. Allen, C.W. Ross.
      SeriesEconomic and technical review report, Environmental Protection Service report series.
      ContributionsAllen, A. A., Ross, C. W., Dames & Moore., Canada. Environmental Emergency Branch. Research and Development Division.
      Classifications
      LC ClassificationsMLCM 91/02057 (T)
      The Physical Object
      Paginationx, 102 p. :
      Number of Pages102
      ID Numbers
      Open LibraryOL2295248M
      ISBN 100662010272
      LC Control Number86165899
      OCLC/WorldCa4799323

        Dispersants have been used to help fight the giant oil spill in the Gulf caused by the demise of the Deepwater Horizon well as environmentalists try to weight its pros and cons. ROBERT, La. .


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feasibility of oil spill dispersant application in the Southern Beaufort Sea by P. B. Hildebrand Download PDF EPUB FB2

A cost and time analysis of using dispersants in the southern Beaufort Sea is performed. Under "best-case" conditions the total cost to dispe cubic metre of oil is calculated to be 10, over an 8-day operational period.

October in this region but the shoulder months of June and November may present dispersant application opportunities depending on the ice year. In the Beaufort Sea region the maximum likely extent for open water dispersant use is from July to October with the more likely season being from August to October.

The general objectives were to (i) inform regional stakeholders about dispersants and the implications of including them as a response tool for cleaning potential oil spills in the Canadian Beaufort Sea, and (ii) help identify paths forward for planning for including chemical oil spill dispersants in the toolbox of spill response countermeasures available to responders in the Beaufort Sea, along with mechanical.

Guide to dispersant - use decision making for oil spills in the Canadian southern Beaufort Sea. [Ottawa]: Environmental Studies Research Funds, (OCoLC) Beaufort Sea for oil and gas leasing. The estimated amounts of oil resources likely to be leased, discovered, and produced as a result of Beaufort Sea OCS Lease Sale (Proposed Action) are assumed to range between billion barrels (Bbbl) and Bbbl.

This report examines the probabilities of hypothetical oil-spill occurrence and. One of the concerns related to dispersant use is whether the application of dispersant chemicals to an oil slick would inhibit the ability to subsequently recover the oil with conventional skimming systems should the dispersant application be unsuccessful.

The National Academy of Science (NAS) report, Understanding Oil Spill Dispersant. like to be informed of any spill incident in the Beaufort Sea relevant to them (e. near their community, within their mandated jurisdiction, or that might require their assistance).

As revealed in the responses to the survey, a Tier 3 oil spill in the Beaufort Sea would involve numerous Inuvialuit, and federal and territorial agencies. Dispersants are one of those things that are talked about a lot in the context of oil spills, but in reality used pretty rarely.

Over my more than 20 years in spill response, I've only been involved with a handful of oil spills that used dispersants. But the unprecedented use of chemical dispersants on and below the ocean's surface during the. specific authorization for use of spill countermeasures.

Part explains, in detail, the categories and specific requirements of how a product is classified under one of the following categories: dispersants, surface washing agents, bioremediation agents, surface collecting agents, and miscellaneous oil spill control agents.

Products that. First, the dispersant is applied to the water surface. Next, molecules of the dispersant attach to the oil, causing it to break into droplets. Wave action and turbulence then force the oil-dispersant mixture into the water column, so that the oil that had been concentrated at.

The program began in April and initially the focus was on the southern Beaufort Sea. Studies triggered by an oil industry proposal to undertake offshore exploratory drilling there had.

Watch a Dispersant Application: This U. Coast Guard video shows the application of dispersant by aircraft after an estima gallons of fuel oil were spilled from the tank ship Krymsk off of Galveston, Texas on Oct. 20, SMART: SMART is a monitoring program for dispersant application and in situ burning.

Modeling Oil Spills in the Beaufort Sea Exploring the Risk: What would happen if oil spills in the Beaufort Sea. Arctic The Beaufort Sea is a unique ocean environment that covers approximatelykm² (, sq.

mi), spanning the Canadian-U. border and stretching across the northern. Ingratefulrecognitionofyearsofservicetothe petroleumindustrythroughtirelesseffortsto improveresponsetechnologyandminimize environmentalimpacts,thisEditionofthe. Test of aircraft dispersant application equipment CANUSDIX drill.

(ADEC Photo) Fact Sheet on Oil Spill Dispersants February, Conditions for Use As with all response options, dispersants have specific conditions in which they are most effective.

Dispersants are designed for crude oil spills. The synthetic dispersants, Corexit EC A and Corexit EC A, are effective in dispersing oil spills; however, the toxicity of these dispersants (LC50 of ~ ppm) and that of resulting dispersed oil (LC50 of ppm) is a major setback for their use in oil spills.

Corexit is a mixture of propylene glycol, dioctyl sodium sulfosuccinate. Dispersant application thus represents a conscious decision to increase the hydrocarbon load (resulting from a spill) on one component of the ecosystem (e.

the water column) while reducing the load on another (e.the coastal wetland). National Research Council, Using Oil Spill Dispersants on the Sea.

  How Dispersants Work. The Goal: Reduce Oil Concentration to Below Impact Levels Rapidly. 2) APPLICATION OF DISPERSANT 3) OIL SLICK DISPERSES INTO DROPLETS WITH MINIMAL ENERGY HYDROPHILIC LIPOPHILIC.

Surfaces of Droplets Repel Each Other No Coalescence. 1) OILWATER INCOMPATIBILITY. Na Na Cl Na Cl Cl. Lessard, R. and DeMarco, G. () The significance of oil spill dispersants.

Lab tests expose organisms to constant concentrations for days Organisms only see elevated concentrations for hours during a spill Dispersants are only applied in areas with high potential for dilution. oceanic oil spill could travel during each of the two primary circulation regimes found in the near-shore Beaufort Sea: 1) under landfast ice during winter and 2) in open water or partial ice cover during summer.

This information will aid the Alaska Department of Environmental Conservation (ADEC) in oil spill response planning. Proc. Joint Conference on Prevention and Control of Oil Spills, March, Washington, D. p.

Hildebrand, P.Allen, A. and Ross, C. () The Feasibility of oil spill dispersant application in the Southern Beaufort Sea, EPS- 3-EC, Fisheries and Environment Canada, Ottawa, Ontario.

Chemical oil spill dispersants are substances applied to spilled oil in order to disperse the oil into the water column rather than leaving it floating on the surface in a slick. The Council has long endorsed mechanical recovery as the primary tool to combat an oil spill. Unlike dispersant use, mechanical recovery with booms and skimmers removes oil from the water.

The prevention or reduction of coastline oiling was high on responders priorities immediately following the Deepwater Horizon oil spill. Five years later, much discussion continues about balancing benefits and risks regarding dispersants, and there are increased research efforts for alternatives or enhancements to existing dispersant systems.

Right: Alaska and U. Arctic waters, focused on the Bering Strait, Chukchi Sea, and Beaufort Sea. Map area corresponds to the red box in the map on the left. ¡ 2 ¡ Shoreline mapping and high-quality bathymetry provide context for the Improving methods for dispersant application for oil spills in ice.

SPILLED OIL RETENTION POTENTIAL-BEAUFORT SEA COAST OF ALASKA. Based on aerial photography and field sampling, the Beaufort Sea coast of Alaska has been classified with respect to its oil spill retention potential. A retention index, which is a measure of the ability of an environment to retain the oil once introduced, is developed.

Field and modeling studies show that dispersants can be a useful tool for oil spill response, says The Use of Dispersants in Marine Oil Spill Response.

Dispersants can reduce the amount of surface oil, thereby reducing response personnels potential exposure to hazardous compounds in oil and lessening the extent of surface oil encountered by.

Oil spills can harm sea creatures, ruin a day at the beach, and make seafood unsafe to eat. It takes sound science to clean up the oil, measure the impacts of pollution, and help the ocean recover. Juvenile Kemp's ridley sea turtle oiled in the Deepwater Horizon spill in 1) Gulf Oil Spill: Dispersants Have Potential to Cause More Harm Than Good.

2) Out of Sign: BPs dispersants are toxic but not as toxic as dispersed oil. 3) Dispersant may make Deepwater Horizon oil spill more toxic. 4) Chemical dispersants being used in Gulf clean-up are potentially toxic.

5) Adding Toxicity to the Gulf: The Exxon. While major oil spills are rare, oil slicks can have disastrous environmental and economic consequences. This book summarizes research on the use of chemical dispersants: their effectiveness and limitations and the results of using them in different spill situations.

While dispersants have been used in previous oil spills, this is the largest application of dispersants at an oil spill response in the United States.

Since the spill occurred, EPA and its federal partners have closely monitored any potential impacts of the dispersant including air quality monitoring by both planes and through mobile and fixed.

Application of Oil Dispersants In addition to (mechanical recovery techniques (skimming and booming) and in situ burning, oil dispersants were used to prevent landfall of the oil in the Deepwater Horizon Spill Beginning in early May responders began injecting dispersants at the source of the release (~m.

Media Fact Sheet for Oil Spill Dispersant Use. Dispersants are chemicals that are applied directly to an oil slick. The key components of chemical dispersants are surface active agents called surfactants (also known as detergents).

Chemical dispersants assist with breaking up the slick into small droplets ranging in size from a few micrometers. For oil spills near ice-infested waters or the ice edge, the use of dispersants has been suggested for oil spill response when the oil is still in open water (Lewis and Prince, ).

In this. In another step toward opening the gate to Shells long planned Alaska Arctic drilling program, the U. Department of the Interiors Bureau of Safety and Environmental Enforcement, or BSEE, has approved Shells oil spill response plan for the companys planned exploratory drilling in the Beaufort Sea.

  Adverse weather conditions can have impacts on the feasibility of oil spill response, especially in relation to marine and airborne operations Limit surface dispersant application from vessels and aircraft; Mean surface ocean temperatures in the southern Beaufort Sea in August and were more than 2°C warmer than the August.

article{osti_, title {Oil-spill risk analysis: Beaufort Sea outer continental shelf lease sale Final report}, author {Anderson, C M and Johnson, W R and Marshall, C F and Lear, E M}, abstractNote {This report summarizes results of an oil-spill risk analysis conducted for OCS Lease SaleBeaufort Sea.

The objective of this analysis was to estimate relative risks associated. Nearly two million gallons of controversial oil dispersants have been applied to the waters of the Gulf in an attempt to break up the spill by far the largest use of such chemicals in history.

Oil dispersants are composed of two main ingredients: solvents and surfactants. With the aid of wave action, solvents work to reduce the surface.

Oil from a tank-barge spill off St. Petersburg in collects along the beaches of Treasure Island. About miles of beaches on barrier islands, from Redington Shores to St.

Pete Beach, were affected. ocean. Oil moved with deep -sea currents, creating a plume of oil within the deep sea; oil and associated marine oil snow also settled on the sea floor. More buoyant oil traveled up through about a mile ( kilometers) of water column and formed large surface slicks; at its maximum extent on Joil.

The chemical dispersants used by the tons on the Deepwater Horizon spill did little to stop the oil from spreading and likely did more harm than good, a new University of Miami study says. The US Bureau of Safety and Environmental Enforcement approved Shell Gulf of Mexico Inc.'s oil spill response plan (OSRP) for the Beaufort Sea on Mar.

Oil Spill Dispersant Guidelines This guidance document is intended for use by ExxonMobil employees and contractors who are trained in the use of oil spill dispersants.

The information presented has been selected from many sources as of August and condensed. The effects of the chemicals used to contain the BP oil spill worry scientists. July 9, — -- Two years ago this week, the wellhead that ruptured on the sea floor of the Gulf of Mexico.