نتایج جستجو برای: petroleum demand

تعداد نتایج: 162097  

2017
Stanley Irobekhian Reuben Okoduwa Bernard Igiri Chinyere Blessing Udeh Chidi Edenta Balli Gauje

The quest for an effective alternative means for effluent treatment is a major concern of the modern-day scientist. Fungi have been attracting a growing interest for the biological treatment of industrial wastewater. In this study, Saccharomycescerevisiae and Torulasporadelbrueckii were isolated from spoiled watermelon and inoculated into different concentrations of effluent. The inoculants wer...

Journal: :Journal of environmental biology 2012
Ravi Dutt Yadav Smita Chaudhry Sanjeev Gupta

Four different strategies of pulping and bleaching were carried out to develop alternative mechanistic ecoenvironmental friendly approaches and generated effluent was characterised. Strategy-I included Phanerochaete sp. fungal pretreatment followed by conventional bleaching, whereas in strategy-II, fungal pretreatment was followed by enzyme xylanase aided bleaching. Strategy-III also included x...

2012
Azadeh Zolfaghari-Baghbaderani Mozhgan Emtyazjoo Parinaz Poursafa Sedigheh Mehrabian Samira Bijani Daryoush Farkhani Parisa Mirmoghtadaee

OBJECTIVE To determine the most effective and biodegradable dispersant of spilled oil in water surrounding two Persian Gulf provinces. METHODS This study compared the effects of three dispersants, Pars 1, Pars 2, and Gamlen OD4000 on removal of oil in two Persian Gulf provinces' water. Overall, 16 stations were selected. Using the Well method, the growth rate of isolated bacteria and fungi wa...

Journal: :Journal of the Air & Waste Management Association 2010
Nora Traviss Brett Amy Thelen Jaime Kathryn Ingalls Melinda Dawn Treadwell

Many organizations interested in renewable, domestic energy have switched from petroleum diesel to biodiesel blends for use in transportation and heavy-duty equipment. Although considerable evidence exists on the negative health effects of petroleum diesel exhaust exposures in occupational settings, there has been little research examining biodiesel exposures. Working collaboratively with a loc...

2012
O. M. Azeez R. E. Akhigbe C. N. Anigbogu S. F. Ige W. A. Saka

OBJECTIVE Although petroleum products are useful chemical compounds which form an integral part of our modern technology, they have been reported to cause deleterious effect on health following their inhalation. Petroleum hydrocarbons-dependent health hazards and their mechanisms have been associated with the routes of administration. This study, therefore, aimed at the isolation and chemical c...

Journal: :Environmental science : water research & technology 2015
J S Hersey S T Yohe M W Grinstaff

Electrospun non-woven poly(ε-caprolactone) (PCL) microfiber meshes are described as biodegradable, mechanically robust, and reusable polymeric oil sorbents capable of selectively retrieving oil from simulated oil spills in both fresh and seawater scenarios. Hydrophobic PCL meshes have >99.5% (oil over water) oil selectivity and oil absorption capacities of ~10 grams of oil per gram of sorbent m...

Journal: :Zeitschrift für analytische Chemie 1886

2016
Yan Chen Kangping Zhao Yueying Wu Shuoshuo Gao Wei Cao Yan Bo Ziyin Shang Jing Wu Feng Zhou

Various multivariate methods were used to analyze datasets of river water quality for 11 variables measured at 20 different sites surrounding Lake Taihu from 2006 to 2010 (13,200 observations), to determine temporal and spatial variations in river water quality and to identify potential pollution sources. Hierarchical cluster analysis (CA) grouped the 12 months into two periods (May to November...

2009
Joaquim Rocha Marcelo Ramos Martins

In 1973, the first oil crisis leaded most countries to experience economic problems due to sudden unbalance in their trade balance. This leads to reactions, limited at the beginning due to short term inelasticity of petroleum demand, but relevant in long term. Brazil started the Proalcool program, which extended from 1979 to 1990, with the use of ethanol cars (E-100). In 1990 this program was e...

2012
Lawrence P. Wackett

Microbial enhanced oil recovery: literature survey http://www.clw.csiro.au/publications/science/2008/ WFO-MicrobialOilRecovery.pdf This report is well referenced and contains some general information on enhanced recovery techniques and biosurfactants. Oil spill: Wikipedia http://en.wikipedia.org/wiki/Oil_spill This Wikipedia entry is a good starting point for information on oil spills. Parts of...

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