The Occurrence of Crude Oil-Degrading Bacteria in Some Sponges Collected at the Persian Gulf: Ecological Importance and Biotechnological Application

Author(s):  
Nasrin Ansari ◽  
Farokh Rokhbakhsh-Zamin ◽  
Mehdi Hassanshahian ◽  
Majid Askari Hesni
2014 ◽  
Vol 82 (1-2) ◽  
pp. 39-44 ◽  
Author(s):  
Mehdi Hassanshahian ◽  
Mohammad Saleh Zeynalipour ◽  
Farzaneh Hosseinzadeh Musa

2019 ◽  
Vol 40 (2) ◽  
pp. e12544 ◽  
Author(s):  
Iman Fakhrzadegan ◽  
Mehdi Hassanshahian ◽  
Majid Askari Hesni ◽  
Amir Saadatfar

2020 ◽  
Vol 54 (4) ◽  
pp. 1087-1102
Author(s):  
Badri Toppur ◽  
Atanu Sanyal

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.


2009 ◽  
Vol 5 (1) ◽  
pp. 603-606
Author(s):  
Yasaman Sanayei

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.


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