نتایج جستجو برای: oil separation

تعداد نتایج: 259602  

Journal: :ACS applied materials & interfaces 2014
Mohammed A Gondal Muhammad S Sadullah Mohamed A Dastageer Gareth H McKinley Divya Panchanathan Kripa K Varanasi

Surfaces which possess extraordinary water attraction or repellency depend on surface energy, surface chemistry, and nano- and microscale surface roughness. Synergistic superhydrophilic-underwater superoleophobic surfaces were fabricated by spray deposition of nanostructured TiO2 on stainless steel mesh substrates. The coated meshes were then used to study gravity driven oil-water separation, w...

Journal: :journal of nuts 0
seyed hamidreza ziaolhagh 1agricultural engineering research department, agricultural and natural resources research and education center of semnan province (shahrood), areeo, shahrood, iran 2department of food science and technology, faculty of agriculture, ferdowsi university of mashhad (fum), mashhad, iran mostafa mazaheri tehrani department of food science and technology, faculty of agriculture, ferdowsi university of mashhad (fum), mashhad, iran mohammad ali razavi department of food science and technology, faculty of agriculture, ferdowsi university of mashhad (fum), mashhad, iran hassan rashidi food industries department, khorasan razavi agricultural and natural resources research and education center, arreo, mashhad, iran

roasting has considerable effects on the quality of cream made of nuts. in this study, the roasting conditions of walnut kernels were optimized based on the stability parameters of the produced cream. temperatures of 100-150°c for 10-30 minutes were used to roast walnut kernels. the amount of oil separation, peroxide, acidity and thiobarbituric acid values of the cream, as well as color paramet...

2013
Lianbin Zhang Yujiang Zhong Dongkyu Cha Peng Wang

Oil-water separation has recently become a global challenging task because of the frequent occurrence of oil spill accidents due to the offshore oil production and transportation, and there is an increasing demand for the development of effective and inexpensive approaches for the cleaning-up of the oily pollution in water system. In this study, a self-cleaning underwater superoleophobic mesh t...

2013
Peng-Cheng Chen Zhi-Kang Xu

Oil-polluted water is a worldwide problem due to the increasing industrial oily wastewater and the frequent oil spill accidents. Here, we report a novel kind of superhydrophilic hybrid membranes for effective oil/water separation. They were prepared by depositing CaCO3-based mineral coating on PAA-grafted polypropylene microfiltration membranes. The rigid mineral-coating traps abundant water in...

2015
Na Liu Xin Lin Weifeng Zhang Yingze Cao Yuning Chen Lin Feng Yen Wei

The earth's environmental problems, especially for water remediation, need effective methods to solve. Materials with special wettability are developed for the separation of oil/water mixtures. However, the separation of emulsified oil/water mixtures can be a real challenge. There is still much deficiencies, on account of the surfactant, which could link water molecules and oil molecules to for...

2015
Chih-Feng Wang Hsiang-Ching Huang Liang-Ting Chen

In this study, we fabricated a superhydrophilic and underwater superoleophobic protonated melamine sponge for effective separation of water-rich immiscible oil/water mixtures with extremely high separation efficiency. This protonated melamine sponge exhibited excellent antifouling properties and could be used to separate oil/water mixtures continuously for up to 12 h without any increase in the...

Journal: :Water research 2013
Haitao Wang Kun-Yi Lin Benxin Jing Galyna Krylova Ginger E Sigmon Paul McGinn Yingxi Zhu Chongzheng Na

Water contaminated by oil and gas production poses challenges to the management of America's water resources. Here we report the design, fabrication, and laboratory evaluation of multi-walled carbon nanotubes decorated with superparamagnetic iron-oxide nanoparticles (SPIONs) for oil-water separation. As revealed by confocal laser-scanning fluorescence microscopy, the magnetic carbon nanotubes (...

Journal: :iranian journal of science and technology (sciences) 2015
g. mohebali

microbial demulsifiers represent a potentially important product for the petroleum industry due to their specific modes of action, relative ease of preparation, biodegradability and low toxicity. an extracellular demulsifier, capable of the rapid break up of model multiple water-crude oil emulsions was obtained from the bacterial isolate ochrobactrum anthropi ripi5-1. demulsifying activity of t...

Journal: :iranian journal of public health 0
s.naseri gh. mostafaee

in this research performed during 1993-1994, the effluent of behran oil refmery, in south of tehran, which produces different types of industrial oil and greases, was studied and 3 methods of gravity separation, coagulation and flocculation and dissolved air flotation were investigated. in the first phase of the survey, the quality and quantity of the effluent were determined. this showed an av...

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