DEVELOPMENT OF HARBOR OIL SPILL REMOVAL-RECOVERY SYSTEMS: PHASE I

ABSTRACT The U.S. Coast Guard's success with the high seas skimming barrier prompted the development of a smaller, half-scale version for use in protected bays and harbors. The smaller version (SCOOP) enables more rapid deployment with significantly fewer people. Individual components of the system include a 65-foot section of skimming barrier with redesigned skimming struts, 200 feet of containment boom, two 30-foot work boats for storage, transport, and operation of the system, trailers to carry the boats to the scene, and an oil recovery system including double-acting diaphragm pump, gravity-type oil-water separator, and 750-gallon collapsible storage bags. In tests at the Environmental Protection Agency's Oil and Hazardous Materials Simulated Environmental Test Tank (OHMSETT) facility, the SCOOP exhibited recovery efficiencies between 30 percent and 60 percent over a speed range of 0.5 to 1.75 knots. The oil recovery rate was between 30 and 70 gallons per minute over the same speed range. At speeds below 0.9 knots there were no losses of oil from the boom. The system has been delivered to the Coast Guard Gulf Strike Team in Bay St. Louis, Mississippi, where it is being evaluated through use in routine spill response operations and exercises.

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DEVELOPMENT OF OIL SPILL RECOVERY SHIP

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-1977-1-367 ◽

1977 ◽

Vol 1977 (1) ◽

pp. 367-374

Author(s):

Shoji Uchida ◽

Hiroshi Takeshita ◽

Yajuro Seike

Keyword(s):

Film Thickness ◽

Oil Spill ◽

Heavy Oil ◽

Oil Content ◽

Design Concept ◽

Hydraulic Fluid ◽

Basic Design ◽

Recovery System ◽

Oil Water ◽

Potential Customers

ABSTRACT A compact oil spill recovery system made up of a special oil suction float, an eductor-driven hydraulic fluid conveying unit, an oil/water separating unit, etc., was devised to the basic design concept of the previously-developed Mitsubishi hydraulic tanker desludging system and installed in a small, self-propelled, twin-hull craft. A 9.60 m long, 4.10 m wide, and 1.40 m deep experimental oil spill recovery ship completed in this manner successfully cleaned up a slick of heavy oil, 7 m × 30 m in area and 0.7 – 2.0 mm in film thickness, in less than three minutes at 0.5 – 1.0 kt and proved very stable, steerable, and easy to operate. Oil content of water at the outlet of the oil/water separating unit was less than 1 ppm. A range of oil spill recovery ships have since been designed, fully weighing opinions of potential customers as regards such items as economy of operation, and capacity.

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A Study on the Intelligenti Zed Marine Oil-Spill Rapid-Clearing System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.256-259.1969 ◽

2012 ◽

Vol 256-259 ◽

pp. 1969-1974

Author(s):

Xiao Jun Zhang ◽

Shang Ping Li ◽

Yuan Fei Zhang

Keyword(s):

Oil Spill ◽

Oil Pollution ◽

Storage Tanks ◽

Single Chip ◽

Large Area ◽

Marine Oil ◽

Oil Storage ◽

Clearing System ◽

Water Separator ◽

Oily Water

At present it is difficult to thoroughly clear away the marine oil-spill when collision takes place. As we know the traditional oil-spill-treatment is slow and the oil pollution can not be handled timely. In order to clear the surface oil and protect marine environment, a study on rapid- clearing of marine oil pollution system is presented in this paper, which is equipped with a high-resolution camera on the top of the oil pollution lifter to identify the oil pollution and get data by image processing, then the oil pollution recovering which is set in the front of the oil storage tanks collecting oil spill by the single-chip machine while moving. Thus the oil spill can be separated into clean oil and water by the oily-water separator through the flexible tube. This system is more efficient, cleaner and less-polluted than the traditional one, which is worthy of large area surface oil-spill clearing.

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Control of oil spills in urban areas

10.32920/ryerson.14662905 ◽

2021 ◽

Author(s):

Jenny King-Lai Chui

Keyword(s):

Physical Model ◽

Oil Spill ◽

Oil Spills ◽

Analysis Technique ◽

Water Separator ◽

Diversion Structure ◽

Oil Water ◽

Sewer Outfalls ◽

Spill Control ◽

The City

The City of Toronto has experienced about 300 oil spills per year (Li 1997). Traditionally, the city recommends that businesses and industries practise pollution prevention and install on-site oil separators. Currently, the sizing criteria for these devices are not well defined and the draft code of practices for oil separators by the Canadian Petroleum Product Institute (1994) has not yet been approved by the Ministry of the Environment (Li 2000). Thus, the city is currently investigating the possibility of installing oil separators at spill prone sewer outfalls. The new application of oil separators at sewer outfalls requires that the devices be operable under high flow conditions and that their capacity should reflect the land use characteristics in the associated sewershed. This study has developed an innovative spill control device for the Humber Creek outfall and a Geographic Information System (GIS)-based analysis technique for urban oil spill management. First, a flow diversion structure was designed to capture the dry weather flow at the outfan and to transport the captured flow into an oil/water separator designed in accordance to the American Petroleum Institute's manual (1990). The designs of the flow diversion structure and the oil/water separator were evaluated by a physical model study using the National Water Research Institute's Hydraulics Laboratory at the Canada Centre for Inland Waters in Burlington, Ontario. Then, the GIS-based analysis technique was used to identify potential treatment options for spill-prone sewer outfall in the Town of Richmond Hill. It was found that (I) the spill event characteristics should be analyzed in order to develop design criteria for oil spill control systems; (2) the preliminary design of the oil spill control system at Humber Creek was different from the API's methodology; and (3) the physical model investigation confirmed the conveyance capacity of the diversion channel and the general behaviour of the tilted-plate separator. A database of oil spill records in the Greater Toronto Area from 1988 to 2000 were compiled and geo-referenced. By overlaying the spill characteristics and other GIS data layers, such as woodlots, wetlands and watercourses, spill prone areas were identified. In order to increase the accuracy of the analysis, the percentage of georeference oil spill locations should be increased.

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Control of oil spills in urban areas

10.32920/ryerson.14662905.v1 ◽

2021 ◽

Author(s):

Jenny King-Lai Chui

Keyword(s):

Physical Model ◽

Oil Spill ◽

Oil Spills ◽

Analysis Technique ◽

Water Separator ◽

Diversion Structure ◽

Oil Water ◽

Sewer Outfalls ◽

Spill Control ◽

The City

The City of Toronto has experienced about 300 oil spills per year (Li 1997). Traditionally, the city recommends that businesses and industries practise pollution prevention and install on-site oil separators. Currently, the sizing criteria for these devices are not well defined and the draft code of practices for oil separators by the Canadian Petroleum Product Institute (1994) has not yet been approved by the Ministry of the Environment (Li 2000). Thus, the city is currently investigating the possibility of installing oil separators at spill prone sewer outfalls. The new application of oil separators at sewer outfalls requires that the devices be operable under high flow conditions and that their capacity should reflect the land use characteristics in the associated sewershed. This study has developed an innovative spill control device for the Humber Creek outfall and a Geographic Information System (GIS)-based analysis technique for urban oil spill management. First, a flow diversion structure was designed to capture the dry weather flow at the outfan and to transport the captured flow into an oil/water separator designed in accordance to the American Petroleum Institute's manual (1990). The designs of the flow diversion structure and the oil/water separator were evaluated by a physical model study using the National Water Research Institute's Hydraulics Laboratory at the Canada Centre for Inland Waters in Burlington, Ontario. Then, the GIS-based analysis technique was used to identify potential treatment options for spill-prone sewer outfall in the Town of Richmond Hill. It was found that (I) the spill event characteristics should be analyzed in order to develop design criteria for oil spill control systems; (2) the preliminary design of the oil spill control system at Humber Creek was different from the API's methodology; and (3) the physical model investigation confirmed the conveyance capacity of the diversion channel and the general behaviour of the tilted-plate separator. A database of oil spill records in the Greater Toronto Area from 1988 to 2000 were compiled and geo-referenced. By overlaying the spill characteristics and other GIS data layers, such as woodlots, wetlands and watercourses, spill prone areas were identified. In order to increase the accuracy of the analysis, the percentage of georeference oil spill locations should be increased.

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EARLY EXPERIENCES WITH A SINGLE-VESSEL OFFSHORE SPILL CLEANUP SYSTEM

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-1985-1-57 ◽

1985 ◽

Vol 1985 (1) ◽

pp. 57-60

Author(s):

William J. Dalton ◽

A. J. Heikamp

Keyword(s):

Oil Spill ◽

Single Vessel ◽

Early Experiences ◽

Water Separator ◽

Oil Spill Response ◽

Oil Water ◽

Operational Practices ◽

Offshore Oil ◽

Oil Spill Cleanup ◽

Further Development

ABSTRACT An oil spill cleanup system was developed to operate offshore with minimal requirements for vessel and personnel coordination. This Vessel of Opportunity Skimming System (VOSS) consists of a skimming barrier towed alongside a single vessel with an outrigger. Suction hoses run to pumps on deck, which are powered by a diesel-hydraulic powerpack. Recovered fluid is pumped through an oil-water separator before being directed to storage. The first VOSS units were installed aboard the LOOP Vigilance, a shrimp boat modified for oil spill response by the Louisiana Offshore Oil Port (LOOP). The use of these units in two small offshore spills is described. This field experience helped to identify operational practices for maximum system efficiency in various spill situations. System improvements have been made and areas for further development determined.

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TURBYLEC: DEVELOPMENT AND EXPERIMENTAL VALIDATION OF AN INNOVATIVE CENTRIFUGAL OIL – WATER SEPARATOR

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-2014.1.634 ◽

2014 ◽

Vol 2014 (1) ◽

pp. 634-648

Author(s):

G. Maj ◽

M. Laurent ◽

M. Mastrangeli ◽

Y. Lecoffre

Keyword(s):

Oil Spill ◽

Experimental Validation ◽

Separation Efficiency ◽

Operating Conditions ◽

Water Release ◽

Water Separation ◽

Water Separator ◽

Oil Water ◽

Separation Performances ◽

Oil Spill Remediation

ABSTRACT An innovative oil/water separator (TURBYLEC) has been developed in the frame of the HOVERSPILLTM European project (Fast Air Cushion platform for Oil Spill Remediation), partly funded by the European Commission's 7th Framework Program. Conventional separation solutions are not appropriate to the remediation scenarios targeted by the HOVERSPILLTM project, mainly because low weight and compactness are absolutely required for transportation on a hovercraft. Namely, high separation efficiency, imposed to satisfy environmental legislation for water release, is particularly difficult to achieve with a compact separator when skimmed flow rate, oil content and density contrast are submitted to large variations. This paper describes the development of a customized patented centrifuge separator devoted to the specific needs of the HOVERSPILLTM project. Conceptual studies, prototype manufacturing and experimental validation are described. The TURBYLEC prototype tested at CEDRE's facilities has a bulk (size and weight) compatible with its integration on the HOVERSPILLTM platform. Tests results show that TURBYLEC matches with expected use (i.e. downstream of a non-selective skimmer). In this configuration, TURBYLEC separator shows very good oil / water separation performances for inlet oil contents up to 25%. In this range of operating conditions its cut diameter has been evaluated to 60 μm. In order to achieve the same separation performances as with TURBYLEC, which weighs only 70 kg (with liquids), it would be necessary to install an 8 m3 gravity separator. TURBYLEC separator has been developed for a very specific duty (i.e. for integration on an Hovercraft for Oil Spill remediation). Nevertheless, its proven performances render it particularly attractive, as a standalone system, for many other specific tasks in the field of oil spill remediation. It could also interest various other water treatment applications.

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