Isolation and characterization of crude-oil-degrading bacteria from the Persian Gulf and the Caspian Sea

2012 ◽  
Vol 64 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Mehdi Hassanshahian ◽  
Giti Emtiazi ◽  
Simone Cappello
2014 ◽  
Vol 82 (1-2) ◽  
pp. 39-44 ◽  
Author(s):  
Mehdi Hassanshahian ◽  
Mohammad Saleh Zeynalipour ◽  
Farzaneh Hosseinzadeh Musa

2017 ◽  
Vol 42 (3) ◽  
pp. 1149-1156 ◽  
Author(s):  
Ali Ebadi ◽  
Mohsen Olamaee ◽  
Nayer Azam Khoshkholgh Sima ◽  
Reza Ghorbani Nasrabadi ◽  
Maryam Hashemi

1959 ◽  
Vol 105 (438) ◽  
pp. 93-107 ◽  
Author(s):  
Max Valentine

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.


2019 ◽  
Vol 40 (3) ◽  
pp. 275-282
Author(s):  
P.K. Çevik ◽  
◽  
A.B. Eroğlu ◽  
G. Yildizli ◽  
D. Coşan ◽  
...  

Author(s):  
Moradi Pour O. ◽  
◽  
Siomka S. ◽  

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.


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.


2020 ◽  
Vol 59 (10) ◽  
pp. 68-85
Author(s):  
Yaroslav Valentinovich Pilipchuk ◽  

This paper is dedicated to the history of Muslim statehood in Azerbaijan in IX-XIII century. The first truly strong was the Sajid dynasty, originating from the Sogdian aristocracy. Its representatives exalted themselves as ghouls in the service of the Abbasids. Having become rulers in Azerbaijan, the Sajids tried to pursue an independent and aggressive policy towards Armenia, which did not always provoke a positive reaction from the caliph. Only at the end of the Sajid rule did their interests again coincide with those of Baghdad. The Muzafarids were another Iranian dynasty, this time the Delemite. Its representatives came from Dalem during its expansion to the northwest. They took upon themselves the blows from Russia, the Ravadids and the Seljuks. The rabadids were a dynasty of Arab origin, which soon became Kurdish. Onomasticon of the dynasty in the 10th - 11th centuries generally Iranian. The era of the greatest power of the Rawwadids was the time of the reign of Mamlan I, who pursued an aggressive policy towards Christian neighbors and the threat from which the Armenians and Georgians neutralized by the conclusion of a defensive alliance. XI century was the time of the gradual fading of the Rawwadids. The Shaddadids were of Kurdish dynasty descent and ruled in Arran. Slow growth of their power was observed in the 10th century, when they began expansion in the possession of the Muzafarids. This dynasty is characterized by close ties with the Armenians. Emirs Fadl and Abu l-Asvar carried out an attack on the Armenian territories, which the Armenians could recapture only by cooperating with the Georgians. To destroy the emirate of the Shaddadids were not able and the Romaios in the middle of the XI century. Only the Seljuks in Arran were able to eliminate the power of the Shaddadids in 1093, and they survived in Shirak until 1199. Shirvan was a state inhabited by Iranian-speaking and Caucasian populations. The Mazyadid dynasty was originally Arab in origin. Shirvan maintained close ties with the state of Lizan. In the tenth century, the Shirvanshahs extended power besides Shirvan to Derbent and Arran. In the second quarter of the XI century. Mazyadids were replaced by the Qesranid dynasty, the onomasticon of which is already Iranian. This dynasty, unlike the Sheddadids in Arran and the Rawwadids in Azerbaijan, retained power in Shirvan under the Seljuks. The Caesranids, like the Mazyadids, continued to claim power over Derbent in the XII century. Shirvan became an object of expansion from Georgia. Shirvans could only resist it with the help of the Seljuks. However, this did not exclude dynastic marriages with Georgian Bagrationi. The most prominent Qesranid was the Shirvanshah Akhsitan, who, with the help of the Georgians, repelled the invasion of the Derbent Khazars and personally repelled the invasion of the Dagestan highlanders. In alliance with Queen Tamar, the Shirvanshah opposed the Atabeks of Azerbaijan. XIII century was the time of the decline of Shirvan, when he became the object of invasion of the Mongols, Kipchaks and Khorezmians. From 1070 Azerbaijan became the possession of the Seljukids, and from 1093 Arran became such. For several decades, Azerbaijan and Arran were the property of the younger Seljukids and were part of the Iraqi Seljuk Sultanate. The design of the state of the Atabeks of Azerbaijan can be dated to the middle of the XII century. Under its first rulers, Shams ad-Din Ildengiz and Jahan-Phelevane, the influence of the Ildengizids extended from the Caspian Sea to the Persian Gulf and from Erzurum to Khorasan. The Ildengizids were those who restrained the expansion of Georgian Bagrationi against Muslim countries and were actually omnipotent workers of the Sultans under the weak Seljukids. Qizil-Arslan has already ceased to look around at the Seljukids completely and has titled itself with a magnificent title. The end of the XII century. - beginning of the XIII century were the time of the decline of the Atabeks of Azerbaijan due to the strife between the Ildengizids and the victories of the Georgians. 20-30-ies of XIII century were the time of the fall of the Atabek state of Azerbaijan. Key words: Shirvan, Azerbaijan, Arran, Sajids, Mosaferids, Shaddadids, Rawwadids, Ildengizids, Seljukids


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