scholarly journals Gas treatment of Cr(VI)-contaminated sediment samples from the North 60`s pits of the chemical waste landfill

1997 ◽  
Author(s):  
E.C. Thornton ◽  
J.E. Amonette
Keyword(s):  
Contaminated Sediment ◽  
Chemical Waste ◽  
Gas Treatment ◽  
Sediment Samples ◽  
Waste Landfill ◽  
The North

scholarly journals OnProphocaandLeptophoca(Pinnipedia, Phocidae) from the Miocene of the North Atlantic realm: redescription, phylogenetic affinities and paleobiogeographic implications

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3024 ◽  
Author(s):  
Leonard Dewaele ◽  
Olivier Lambert ◽  
Stephen Louwye
Keyword(s):  
North America ◽  
Middle Miocene ◽  
New Combination ◽  
Phylogenetic Position ◽  
Appendicular Skeleton ◽  
Original Diagnosis ◽  
Sediment Samples ◽  
The North ◽  
The North Sea ◽  
Phylogenetic Affinities

BackgroundProphocaandLeptophocarepresent the oldest known genera of phocine seals, dating from the latest early to middle Miocene. Originally,Prophoca rousseauiandProphoca proximawere described based on fragmentary remains from the Miocene of Belgium. However, several researchers contested the union ofProphoca rousseauiandProphoca proximainto one genus, without providing evidence. The stratigraphic context ofProphocaremained poorly constrained due to the lack of precise data associated with the original specimens collected in the area of Antwerp (north of Belgium).MethodsProphocaandLeptophocaare redescribed and their phylogenetic position among Phocidae is reassessed using PAUP. Dinoflagellate biostratigraphy has been carried out on sediment samples associated with specimens fromProphocaandLeptophocato elucidate their approximate ages.ResultsWhereas the speciesProphoca rousseauiis redescribed,Prophoca proximais considered synonymous toLeptophoca lenis, with the proposal of a new combinationLeptophoca proxima(Van Beneden, 1877). Sediment samples from specimens of both taxa have been dated to the late Langhian–early Serravallian (middle Miocene). Following a reinvestigation ofLeptophoca amphiatlantica, characters from the original diagnosis are questioned and the specimens ofLeptophoca amphiatlanticaare consideredLeptophocacf.L. proxima. In a phylogenetic analysis,Prophoca rousseauiandLeptophoca proximaconstitute early branching stem-phocines.DiscussionLeptophoca proximafrom the North Sea Basin is younger than the oldest known find ofLeptophoca proximafrom North America, which does not contradict the hypothesis that Phocinae originated along the east coast of North America during the late early Miocene, followed by dispersal to Europe shortly after. Morphological features of the appendicular skeleton indicate thatProphoca rousseauiandLeptophoca proximahave archaic locomotory modes, retaining a more prominent use of the fore flipper for aquatic propulsion than extant Phocidae.

scholarly journals Chemical Waste Landfill Annual Post-Closure Report Calendar Year 2019.

2020 ◽  
Author(s):  
Michael Marquand Mitchell ◽  
Bonnie Colleen Little
Keyword(s):  
Chemical Waste ◽  
Waste Landfill

PREPARATION AND IMPLEMENTATION OF A SAFETY MANAGEMENT SYSTEM IN BHPP

1997 ◽  
Vol 37 (1) ◽  
pp. 657
Author(s):  
P.C. Hunter
Keyword(s):  
Management System ◽  
Oil And Gas ◽  
Safety Management ◽  
Oil Field ◽  
Safety Performance ◽  
Asia Pacific ◽  
Gas Treatment ◽  
Safety Management System ◽  
North West ◽  
The North

BHP is a leading global resources company which comprises four main business groups: BHP Copper, BHP Minerals, BHP Steel and BHP Petroleum. BHP Petroleum (BHPP) global operations are divided into four Regions and Australia/Asia Region is responsible for exploration, production, field development and joint ventures in the Asia-Pacific region. In Australia, the Company's largest producing assets are its shares of the Gippsland oil and gas fields in Bass Strait and the North West Shelf project in Western Australia.BHPP operates three Floating Production, Storage and Offloading (FPSO) vessels-Jabiru Venture, Challis Venture and Skua Venture-in the Timor Sea and one FPSO, the Griffin Venture, in the Southern Carnarvon Basin. Stabilised oil is offloaded from all four FPSOs by means of a floating hose to a shuttle tanker. Gas from the Griffin Venture is compressed and transferred through a submarine pipeline to an onshore gas treatment plant.BHPP's Asian production comes from the Dai Hung oil field offshore Vietnam where BHPP is the operator and from Kutubu in Papua New Guinea.In Melbourne, BHPP operates a Methanol Research Plant and produced Australia's first commercial quantities of methanol in October 1994.BHPP is an extremely active offshore oil and gas explorer and has interests in a number of permits and blocks in the Australian-Indonesian Zone of Co-operation.This paper discusses BHPP's approach to safety management, both for its worldwide operations and specifically in Australia/Asia Region. It explains how BHPP's worldwide safety management model takes regional regulatory variations into account. It shows, specifically, how this has been done in Australia/Asia Region using what BHPP considers to be a best practice approach.The paper describes how BHPP Australia/Asia Region benchmarked its performance against other operators in Australia and the North Sea. It explains how the findings of the benchmarking study were used to plan the preparation of a safety management system (SMS). The structure of the SMS is described along with the legal requirements in Australia.The paper concludes that implementation of the SMS is progressing according to plan and points out that safety cases for the FPSOs have been submitted to the Regulators. Implementation of the SMS and the drive for world class safety standards is having a substantial effect and safety performance is improving. One measure of safety performance, the Lost Time Injury Frequency Rate (LTIFR) is down from around 15 at the end of 1994 to under 3 in December 1996.

scholarly journals Complete Genome Sequence of Exiguobacterium sp. Strain N4-1P, a Psychrophilic Bioemulsifier Producer Isolated from a Cold Marine Environment in North Atlantic Canada

2017 ◽  
Vol 5 (44) ◽  
Author(s):  
Qinhong Cai ◽  
Xudong Ye ◽  
Bing Chen ◽  
Baiyu Zhang
Keyword(s):  
Genome Sequence ◽  
Marine Environment ◽  
North Atlantic ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Petroleum Hydrocarbon ◽  
Psychrophilic Bacterium ◽  
Contaminated Sediment ◽  
Sediment Samples ◽  
First Time

ABSTRACT Here, we present the complete genome sequence of Exiguobacterium sp. strain N4-1P, a psychrophilic bacterium that produces bioemulsifier, isolated for the first time from petroleum hydrocarbon-contaminated sediment samples from shoreline Newfoundland, Canada. Many strains of the genus Exiguobacterium are extremophiles and have properties of biotechnological interest.

scholarly journals Run-up, inundation, and sediment characteristics of the 22 December 2018 Sunda Strait tsunami, Indonesia

2020 ◽  
Vol 20 (4) ◽  
pp. 933-946 ◽  
Author(s):  
Wahyu Widiyanto ◽  
Shih-Chun Hsiao ◽  
Wei-Bo Chen ◽  
Purwanto B. Santoso ◽  
Rudy T. Imananta ◽  
...  
Keyword(s):  
Average Distance ◽  
Fine Sand ◽  
Coarse Sand ◽  
Sediment Characteristics ◽  
Sediment Samples ◽  
The North ◽  
Sediment Deposits ◽  
Run Up ◽  
Tsunami Run Up ◽  
Krakatau Volcano

Abstract. A tsunami caused by a flank collapse of the southwest part of the Anak Krakatau volcano occurred on 22 December 2018. The tsunami affected the coastal areas located at the edge of the Sunda Strait, Indonesia. To gain an understanding of the tsunami event, field surveys were conducted a month after the incident. The surveys included measurements of run-up height, inundation distance, tsunami direction, and sediment characteristics at 20 selected sites. The survey results revealed that the run-up height reached 9.2 m in Tanjungjaya and an inundation distance of 286.8 m was found at Cagar Alam, part of Ujung Kulon National Park. The tsunami propagated radially from Anak Krakatau and reached the coastal zone with a direction between 25 and 350∘ from the north. Sediment samples were collected at 27 points in tsunami deposits with a sediment thickness of 1.5–12.7 cm. The average distance from the coast of the area with significant sediment deposits and the deposit limit are 45 % and 73 % of the inundation distance, respectively. Sand sheets were sporadic, highly variable, and highly influenced by topography. Grain sizes in the deposit area were finer than those at their sources. The sizes ranged from fine sand to boulders, with medium sand and coarse sand being dominant. All sediment samples had a well-sorted distribution. An assessment of the boulder movements indicates that the tsunami run-up had minimum velocities of 4.0–4.5 m s−1.

scholarly journals Assessment of natural radionuclide distribution in shore sediment samples collected from the North Dune beach, Henties Bay, Namibia

2017 ◽  
Vol 10 (4) ◽  
pp. 301-306 ◽  
Author(s):  
Sylvanus A. Onjefu ◽  
Simeon H. Taole ◽  
Nnenesi A. Kgabi ◽  
Charles Grant ◽  
Johann Antoine
Keyword(s):  
Natural Radionuclide ◽  
Sediment Samples ◽  
The North ◽  
Radionuclide Distribution
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