نتایج جستجو برای: crude oil

تعداد نتایج: 168560  

2014
Biji Shibulal Saif N. Al-Bahry Yahya M. Al-Wahaibi Abdulkader E. Elshafie Ali S. Al-Bemani Sanket J. Joshi

Crude oil is the major source of energy worldwide being exploited as a source of economy, including Oman. As the price of crude oil increases and crude oil reserves collapse, exploitation of oil resources in mature reservoirs is essential for meeting future energy demands. As conventional recovery methods currently used have become less efficient for the needs, there is a continuous demand of d...

Journal: :محیط شناسی 0
سمائه نمازی کارشناس ارشد بیولوژی و بیوتکنولوژی خاک، دانشکدة کشاورزی، دانشگاه شهرکرد فایز رئیسی دانشیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه شهرکرد شجاع قربانی دشتکی استادیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه شهرکرد

toxicity and damages caused by soil pollution with crude oil and its microbial responses may depend on nitrogen bioavailability and its form. so, the main objective of this study is to investigate the effects of crude oil and various forms of n consumption on c mineralization and microbial biomass. the experiment was done in the form of factorial (3×4) design using crd (completely randomized de...

Journal: :تحقیقات نظام سلامت 0
حسین موحدیان عطار استاد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. محسن سعدانی دانشجوی کارشناسی ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. مهدی حاجیان نژاد دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. مریم فرجی دانشجوی کارشناسی ارشد، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: crude oil is a very complex composition with harmful effects in human health such as carcinogenesis and blood effects. using the bioassay method to assess the effect of purification process produces useful results. in this study the effect of ozonation to reduce the toxicity of crude oil in the water is investigated. methods: standard sample of the water soluble fraction were prepar...

Journal: :Nature Communications 2019

2015
Elin Sørhus Rolf B. Edvardsen Ørjan Karlsen Trond Nordtug Terje van der Meeren Anders Thorsen Christopher Harman Sissel Jentoft Sonnich Meier

The toxicity resulting from exposure to oil droplets in marine fish embryos and larvae is still subject for debate. The most detailed studies have investigated the effects of water-dissolved components of crude oil in water accommodated fractions (WAFs) that lack bulk oil droplets. Although exposure to dissolved petroleum compounds alone is sufficient to cause the characteristic developmental t...

2012
R. C. John G. C. Okpokwasili

The crude oil degradability and plasmid profile of autotrophic nitrifying bacteria, Nitrosomonas and Nitrobacter species, isolated from mangrove sediment in the Niger Delta of Nigeria were studied. The effects of temperature, pH and optical density on the utilization of different carbon sources by the bacteria were also investigated. Results showed that nitrifying bacteria could utilize kerosen...

Journal: :International Journal of e-Education, e-Business, e-Management and e-Learning 2012

1999
D.N. Prasad S.P. Basu A.K. Srivastava

The crude native oil and purified seed oil of Mesua ferrea were studied for their effect on isolated rat il eum by taking standard spasmodic and antispasmodic drugs. The crude oil of seed showed significant antispasmodic activity but purified oil was devoid of any antispasmodic activity.

2012
Jong Nam Kim Bong-Soo Kim Seong-Jae Kim Carl E. Cerniglia

The Deepwater Horizon oil spill of 2010 raised concerns that dispersant and dispersed oil, as well as crude oil itself, could contaminate shellfish and seafood habitats with hazardous residues that had potential implications for human health and the ecosystem. However, little is known about the effects of crude oil and dispersant on the human fecal microbiota. The aim of this research was to ev...

Journal: :Oil and energy trends 2022

Current data on crude oil, field/lease condensate, and natural gas liquids produced from NGL plants. Updated a monthly basis.

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