News Column

Findings in Waste Management Research Reported from Federal University

June 27, 2014



By a News Reporter-Staff News Editor at Energy Weekly News -- Data detailed on Waste Management Research have been presented. According to news reporting originating from Belo Horizonte, Brazil, by VerticalNews correspondents, research stated, "This paper reports the development of superhydrophobic nanocomposite systems which are also oleophilic. As hydrophobicity is based on low energy surface and surface roughness, the electrospinning technique was selected as the manufacturing technique."

Our news editors obtained a quote from the research from Federal University, "N,N' dimethylformamide (DMF) was employed as the polystyrene (PS) solvent. The 'Tea-bag' (T-B) nanocomposite system is based on exfoliated graphite surrounded by PS superhydrophobic membranes. The T-B systems were tested regarding its adsorption and absorption rates. To test these properties, it was employed three different water/oil emulsions, i.e., new and used motor oil, which have physical properties (viscosity and specific gravity) similar to heavy crude oil extracted in Brazil, and vacuum pump oil (which does not form oil/water emulsion). It was observed that oil adsorption rate is dependent on oil surface tension, while the absorption rate is mainly dependent on membrane/exfoliated graphite surface area. Experimental data show that oil absorption rates ranged between 2.5 g/g and 40 g/g, while the adsorption rate oscillated from 0.32 g/g/min to 0.80 g/g/min."

According to the news editors, the research concluded: "Furthermore, T-B systems were tested as containment barriers and sorbent materials with good results including its recyclability."

For more information on this research see: Nano-based systems for oil spills control and cleanup. Journal of Hazardous Materials, 2014;272():20-27. Journal of Hazardous Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Hazardous Materials - www.elsevier.com/wps/product/cws_home/502691)

The news editors report that additional information may be obtained by contacting A.F. Avila, Federal University of Minas Gerais, Civil Engn Program, BR-3127901 Belo Horizonte, MG, Brazil. Additional authors for this research include V.C. Munhoz, A.M. de Oliveira, M.C.G. Santos, G. Lacerda and C.P. Goncalves.

Keywords for this news article include: Brazil, Energy, Oil & Gas, Oil Spill, South America, Belo Horizonte, Waste Management Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Energy Weekly News


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