scholarly journals Isolation of crude-oil-degrading Sphingomonas paucimobilis from the Persian Gulf and Caspian Sea

2009 ◽  
Vol 5 (1) ◽  
pp. 603-606
Author(s):  
Yasaman Sanayei
Keyword(s):  
Crude Oil ◽  
Persian Gulf ◽  
Caspian Sea ◽  
Sequencing Batch Reactor ◽  
Oil And Gas ◽  
Produced Water ◽  
Batch Reactor ◽  
Sphingomonas Paucimobilis ◽  
Hydraulic Residence Time ◽  
The Persian Gulf

Oil spills are a major menace to the environment because they severely damage the surrounding ecosystems. Persian Gulf in this century, Situating in the middle east, having more than 65 percent of world’s oil and gas resources, having huge biodiversity and existing rich resources of pearls and shells have made this location unique and valuable. Oil and gas field wastewater or produced water is a significant waste stream in the oil and gas industries. In this study, the performance of sequencing batch reactor (SBR) and sequencing batch reactor  process treating produced wastewater were investigated and compared. The SBR was operated in different hydraulic residence time (HRT) of 8, 20 and 44 h. Operation results showed that for a HRT of 20 h, the combined process effluent chemical oxygen demand (COD, oil removal efficiencies were 90.9 and 91.5 %, respectively .In this study, sequencing batch reactor(SBR) was used to treat synthetic and real produced water crude-oil-degrading Sphingomonas paucimobilis bacteria was isolated from oil-contaminated sites in the Persian Gulf and the Caspian Sea. Based on a high growth rate on crude oil and on hydrocarbon degradation ability. The combination of a SBR inoculated with a consortium of isolated halophilic microorganisms and a membrane filtration is an efficient, reliable, and compact process for organic matter produced water treatment without prior dilution.

Psychometric Testing in Iran

1959 ◽  
Vol 105 (438) ◽  
pp. 93-107 ◽  
Author(s):  
Max Valentine
Keyword(s):  
Persian Gulf ◽  
Caspian Sea ◽  
Psychometric Testing ◽  
Mineral Resources ◽  
Oil Fields ◽  
The Caspian Sea ◽  
Winter Rainfall ◽  
Mountain Ranges ◽  
The People ◽  
The Persian Gulf

Geographically, Iran is for the most part a plateau at an average altitude of about a thousand metres; the terrain—the near-jungle conditions of the Caspian littoral excepted—is arid semi-desert and the typical landscape one of limestone mountain ranges between which lie flat plains. It is bordered by Iraq, Turkey, the U.S.S.R., the Caspian Sea, Afghanistan, Pakistan and the Persian Gulf. Except during spring the vegetation in most areas is sun-shrivelled on the bare treeless earth; after five months of burning heat the winter rainfall washes off the topsoil, and river-beds, dry throughout the summer, overflow with muddy torrents. Although the soil is dry and powdery there are abundant watercourses below the surface and with irrigation the land is very productive. The country has great mineral resources; apart from the oil-fields they are un-exploited due to lack of coal and road and rail communications. The people are mainly feudal villagers or nomadic tribesfolk but Tehran is a modern city of a million population and the provincial capitals are also semi-Westernized.

Sovereign Wealth Funds in the Persian Gulf States

2017 ◽  
Author(s):  
Gawdat Bahgat
Keyword(s):  
United Arab Emirates ◽  
Persian Gulf ◽  
Oil And Gas ◽  
Oil Prices ◽  
Oil And Gas Industry ◽  
Detailed Examination ◽  
Data Availability ◽  
Sharp Drop ◽  
Sovereign Wealth Funds ◽  
The Persian Gulf

The period from early 2000s to 2014 witnessed unprecedented and sustained high oil prices transforming the main oil and gas exporters in the Persian Gulf into major players in global finance. The Islamic Republic of Iran and the six GCC member states (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates) have been using these massive oil revenues to assert their economic and political leverage on the regional and international scene. A key component of this effort has been the creation of sovereign wealth funds (SWFs). This chapter examines the SWFs in Iran and the GCC states. It includes discussion of the emergence and evolution of the oil and gas industry in the region, analysis of the sharp drop in oil prices since 2014 and how this cycle is different from previous ones, and detailed examination (based on limited data availability) of Iran’s and the GCC’s major SWFs.

scholarly journals PRINCIPLES OF FUNCTIONAL AND SPATIAL ORGANIZATION OF ENERGY-EFFICIENT MEDIUM-RISE HOUSING IN THE COASTAL REGIONS OF IRAN

2020 ◽  
Vol 2 (2) ◽  
pp. 132-140
Author(s):  
Moradi Pour O. ◽  
◽  
Siomka S. ◽  
Keyword(s):  
Persian Gulf ◽  
Caspian Sea ◽  
Energy Efficient ◽  
Spatial Organization ◽  
Residential Buildings ◽  
Climatic Conditions ◽  
Coastal Regions ◽  
The Caspian Sea ◽  
Architectural Planning ◽  
The Persian Gulf

The article is devoted to the principles of functional and spatial organization of energy-efficient housing, architectural, artistic and compositional features of the organization of housing with energy-efficient technologies. The article deals with the issues of architectural planning and spatial modification of residential buildings of medium height depending on the natural and climatic conditions and features of the country's region. Special attention is paid to the regions where there are significant water resources. The Persian Gulf and the Caspian sea region in Iran are the most densely populated and represent areas where all four types of possible types of energy-saving technologies are presented: solar, water, wind energy and energy from the earth's interior.

A transshipment model for logistics management at Indian Oil Corporation

2020 ◽  
Vol 54 (4) ◽  
pp. 1087-1102
Author(s):  
Badri Toppur ◽  
Atanu Sanyal
Keyword(s):  
Supply Chain ◽  
West Africa ◽  
Crude Oil ◽  
North Africa ◽  
Persian Gulf ◽  
Supply Chain Coordination ◽  
The State ◽  
Logistics Management ◽  
The Persian Gulf ◽  
Improve Supply Chain

Three refineries of the Indian Oil Corporation procure crude oil from suppliers, at production sites in the Persian Gulf, West Africa, North Africa, West Asia, and India. The crude oil is shipped to two ports in the state of Gujarat, India, by large tankers and medium sized vessels. From these two ports, the crude oil is pumped to the refineries via pipelines. The refineries have known capacity, that are different for the two types of crude oil. In this paper, the scaled-up problem has been modelled, as a transshipment network. Next, the concrete instance of the problem, has been solved using an LP solver. This was followed by post-optimality analysis of the solution. The flow values on all arcs, and optimal product mix, validate actual decisions. Precise shipping requirements obtained from the solution, are shared in advance with marine transporters to improve supply chain coordination.

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