CONDUCTING AN OIL SPILL CLEANUP IN THE AFTERMATH OF A NATURAL DISASTER – A CAYMAN ISLANDS CASE STUDY

2008 ◽  
Vol 2008 (1) ◽  
pp. 1235-1238
Author(s):  
Antoinette Yvette Johnson ◽  
David Allen Jensen ◽  
Roydell Alston Carter
Keyword(s):  
Free Product ◽  
Recovery Process ◽  
Storage Site ◽  
Cayman Islands ◽  
Grand Cayman ◽  
Hurricane Ivan ◽  
Used Oil ◽  
Response Team ◽  
Storage Area ◽  
Oil Spill Cleanup

ABSTRACT On the morning of the 12th of September 2004, a storm surge produced by Hurricane Ivan moved across Grand Cayman and swept an estimated 900 drums of used oil from their storage site, scattering some as far away as 350 meters from the original location. Given the extent of the devastation caused by the hurricane and the limitations placed on equipment and personnel, it was some time before a number of drums could be recovered from the canals and vegetation to the west of the storage area. At the start of the recovery process there was significant free-product in the canals mixed in with hurricane debris, sewage from a sewer line break and vegetation which presented a real challenge to the response team. Ultimately, the team recovered some 2000 gallons of free product from the waterways, with another 8,500 gallons collected from drums recovered intact. The process involved the removal of oil-soaked debris, washing of vegetation and the separation of oil and water with a very limited amount of equipment and personnel. Once the free product had been removed to the level of sheen, absorbent pads and bioremediation completed the process.

Platynosomum fastosum-induced chronic intrahepatic cholangitis and Spirometra spp. infections in feral cats from Grand Cayman

2011 ◽  
Vol 86 (2) ◽  
pp. 209-214 ◽  
Author(s):  
S.A. Headley ◽  
M.A. Gillen ◽  
A.W.D. Sanches ◽  
M.Z. Satti
Keyword(s):  
Bile Ducts ◽  
Inflammatory Cells ◽  
Cayman Islands ◽  
Feral Cats ◽  
Grand Cayman ◽  
Intrahepatic Bile Ducts ◽  
Sporadic Cases ◽  
Bile Duct Epithelium ◽  
Liver Fragments ◽  
Human Sparganosis

AbstractThe occurrence of platynosomiasis and intestinal sparganosis is described in feral cats from Grand Cayman, Cayman Islands. Spirometra spp. was observed within the intestine of 18.18% (10/55) of cats; 1.18% (1/55) of cats demonstrated gross and histological manifestation of parasitism by Platynosomum fastosum, but 14.5% (8/55) of cats had the characteristic pathological manifestations of P. fastosum-induced intrahepatic cholangitis without the concomitant presence of the intraductal trematode. Combined parasitism (Spirometra spp. and P. fastosum) was observed in 9.09% (5/55) of feral cats. Significant pathological findings were only associated with the hepatic fluke, P. fastosum, and were grossly characterized by moderate hepatomegaly with enlarged and dilated bile ducts. Examples of cestodes with morphological features characteristic of Spirometra spp. were observed within the small intestine without any associated pathological lesion. The histopathological evaluation of liver fragments revealed chronic intrahepatic cholangitis with and without the associated intraductal trematode, and was characterized by marked periductal fibrosis, adenomatous proliferation of bile duct epithelium, dilation of intrahepatic bile ducts and portal accumulations of inflammatory cells. The occurrence of the cestode in feral cats coupled with factors that are unique to Grand Cayman makes this island the ideal location for sporadic cases of human sparganosis.

scholarly journals The Indo-Pacific House Gecko, Hemidactylus garnotii Duméril and Bibron 1836, a newly documented nonindigenous species on Grand Cayman, Cayman Islands

2013 ◽  
Vol 20 (4) ◽  
pp. 203-204
Author(s):  
Rebecca M. Reichart ◽  
Elias N. Votzakis ◽  
Michael D. Bainum III ◽  
Michael E. Seidel ◽  
Kenneth L. Krysko
Keyword(s):  
Nonindigenous Species ◽  
Cayman Islands ◽  
Grand Cayman ◽  
Hemidactylus Garnotii

scholarly journals Influence of Dry Beach on the Dynamic Stability of Ash Storage Field: A Numerical Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Fangtao She ◽  
Chang Liu ◽  
Xiangang Zhou ◽  
Changjun Qi ◽  
Jiulong Ding
Keyword(s):  
Fly Ash ◽  
Numerical Analysis ◽  
Seismic Waves ◽  
Northwest China ◽  
Standard Penetration Test ◽  
Storage Site ◽  
The Third ◽  
Storage Area ◽  
China Today ◽  
Horizontal Displacements

Ash storage sites are a commonly used method of disposing fly ash, a byproduct of coal combustion, in China today, and when it accumulates to a certain height, serious geological hazards may occur as a result of seismic activity. In this study, an in situ standard penetration test was carried out on a constructed ash storage site in Northwest China to evaluate the potential for liquefaction of alluvial fly ash within the site, and the results show that dynamic liquefaction can occur within a newly constructed three-stage subdam. A numerical analysis of the influence of dry beach length on the dynamic response of the primary dams and subdams and an assessment of the extent of dynamic liquefaction in the ash storage field were carried out using the Wenchuan seismic waves as input ground motion. Numerical results prove that the acceleration within the ash storage field is relatively low in the original breccias layer and gradually increases with height, with the peak acceleration occurring in the vicinity of the third subdam and a decreasing trend from the subdams towards the ash storage field. As the length of the dry beach increases, the Peak accelerations in the ash storage area occur near the third subdams at larger dry beach length. Meanwhile, the acceleration in the ash storage area close to the surface gradually increases, and, significantly, the range where higher accelerations occur also becomes larger. The maximum horizontal displacements at different dry beach lengths occur at the crest of the third subdam and in the adjacent ash storage area. As the length of the dry beach increases, the maximum horizontal displacements show a certain decrease, but they occur progressively further away from the third subdam, so that, under dynamic action, the dams become safer. The extent of liquefaction decreases at larger dry beach length and extends further away from the third subdam into the ash storage area. It is, therefore, recommended that the length of the dry beach should not be less than 150 m for this ash storage site.

scholarly journals Research on the Processes of Injecting CO2 into Coal Seams with CH4 Recovery Using Horizontal Wells

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 416 ◽  
Author(s):  
Jarosław Chećko ◽  
Tomasz Urych ◽  
Małgorzata Magdziarczyk ◽  
Adam Smolinski
Keyword(s):  
Carbon Dioxide ◽  
Coalbed Methane ◽  
Recovery Process ◽  
Coal Bed ◽  
Structural Parameter ◽  
Storage Site ◽  
Coal Seams ◽  
Methane Recovery ◽  
Enhanced Coalbed Methane Recovery ◽  
Research Activities

The paper presents a research study on modeling and computer simulation of injecting CO2 into the coal seams of the Upper Silesian Coal Basin, Poland connected with enhanced coal bed methane (ECBM) recovery. In the initial stage of the research activities, a structural parameter model was developed specifically with reference to the coal-bearing formations of the Upper Carboniferous for which basic parameters of coal quality and the distribution of methane content were estimated. In addition, a lithological model of the overall reservoir structure was developed and the reservoir parameters of the storage site were analyzed. In the next stage of the research, the static model was supplemented with detailed reservoir parameters as well as the thermodynamic properties of fluids and complex gases. The paper discusses a series of simulations of an enhanced coalbed methane recovery process with a simultaneous injection of carbon dioxide. The analyses were performed using the ECLIPSE software designed for simulating coal seam processes. The results of the simulations demonstrated that the total volume of CO2 injected to a designated seam in a coal mine during the period of one year equaled 1,954,213 sm3. The total amount of water obtained from the production wells during the whole period of the simulations (6.5 years) was 9867 sm3. At the same time, 15,558,906 sm3 of gas was recovered, out of which 14,445,424 sm3 was methane. The remaining 7% of the extracted gas was carbon dioxide as a result of reverse production of the previously injected CO2. However, taking into consideration the phenomena of coal matrix shrinking and swelling, the total amount of injected CO2 decreased to approximately 625,000 sm3.

scholarly journals Cayman Islands Sea Turtle Nesting Population Increases Over 22 Years of Monitoring

2021 ◽  
Vol 8 ◽  
Author(s):  
Janice M. Blumenthal ◽  
Jane L. Hardwick ◽  
Timothy J. Austin ◽  
Annette C. Broderick ◽  
Paul Chin ◽  
...  
Keyword(s):  
Spatial Data ◽  
Green Turtle ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Conservation Strategies ◽  
Percentage Increase ◽  
Cayman Islands ◽  
Grand Cayman ◽  
Loggerhead Turtles ◽  
Nesting Beaches

Given differing trajectories of sea turtle populations worldwide, there is a need to assess and report long-term population trends and determine which conservation strategies are effective. In this study, we report on sea turtle nest monitoring in the Cayman Islands over a 22-year period. We found that green (Chelonia mydas) and loggerhead (Caretta caretta) nest numbers increased significantly across the three islands since monitoring began in 1998, but that hawksbill nest numbers remained low with a maximum of 13 nests recorded in a season. Comparing the first 5 years of nest numbers to the most recent 5 years, the greatest percentage increase in green turtle nests was in Grand Cayman from 82 to 1,005 nests (1,126%), whereas the greatest percentage increase for loggerhead turtle nests was in Little Cayman from 10 to 290 nests (3,800%). A captive breeding operation contributed to the increase in the Grand Cayman green turtle population, however, loggerhead turtles were never captive-bred, and these populations began to increase after a legal traditional turtle fishery became inactive in 2008. Although both species have shown significant signs of recovery, populations remain at a fragment of their historical level and are vulnerable to threats. Illegal harvesting occurs to this day, with multiple females taken from nesting beaches each year. For nests and hatchlings, threats include artificial lighting on nesting beaches, causing hatchlings to misorient away from the sea, and inundation of nests by seawater reducing hatch success. The impacts of lighting were found to increase over the monitoring period. Spatial data on nest distribution was used to identify critical nesting habitat for green and loggerhead turtles and is used by the Cayman Islands Department of Environment to facilitate remediation of threats related to beachside development and for targeted future management efforts.

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