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Graphite flotation in the presence of sodium acetate

Graphite flotation in the presence of sodium acetate

Graphite was subjected to flotation in the presence of increasing concentration of sodium acetate. A comparison of graphite flotation with the surface tension, both as a function of the sodium acetate concentration in the aqueous solution, revealed a similar pattern of both relations. It seems to confirm one of the theories of salt flotation claiming that for hydrophobic materials the change of flotation recovery with the salt concentration is mostly determined by the surface tension of the aqueous solution. It was found that graphite recovery increases when the surface tension of the solution and decreases as the surface tension decreases. At a low salt concentration this rule is not obeyed due to, very likely, the socalled Jones-Rey effect.

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Environmental pollution in the petroleum refining industry

, Zashch.Okruzh. Sreda Neftegaz Kompl., 6 , 41-45 (2010) [21]. *** Russian Federation Claim No. 2007126232 for Useful Model (9 July 2007) [22]. I. Anghelache, Petroleum and non-petroleum automobile gasoline (in Romanian), Ed. Tehnica, Bucuresti (1986) [23]. *** http://www.environment.gov.au/settlements/transport/fuelguide/tips.html [24]. A.E. Sterpu, D.I. Arsenie, N. Teodorescu, A.I. Dumitru and D.T. Epure, Ovidius University Annals of Chemistry, 22(1) , 41-46 (2011) [25]. S. Dobrinas

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Nutritional evaluation of aquaculture mussels (M. galloprovincialis) from the Black Sea, Bulgaria

Parliament and Of the Council of 20 December 2006 on nutrition and health claims made on foods. [15] R. Sirbu, S. Paris, E. Cadar, M. Cherim, A. Mustafa, N. Lupascu, C. Erima, C. Lipsa, A. Tomescu, European Journal of Interdisciplinary Studies 4 (1), 122-128 (2016). [16] E. Prato, A. Danieli, M. Maffia and F. Biandolino, Zoological Studies 49, 211-219 (2010). [17] V. Ventrella, M. Pirini, A. Palgliarani, F. Trombetti, M.P. Manuzzi and A.R. Borgatti, Comparative Biochemistry and Physiology, Part B 149, 241-250 (2008

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Comparison of fatty acids, cholesterol, fat soluble vitamins and carotenoids content of skin and edible tissue of farmed African catfish (Clarias gariepinus, Burchell 1822)

). FAO/INFOODS Analytical food composition database version 1.0-AnFooD1.0. FAO, Rome http://www.fao.org/docrep/017/ap796e/ap796e.pdf [31]. Commission Regulation (EU) No 116/2010 of 9 February 2010 amending Regulation (EC) No. 1924/2006 of the European Parliament and of the Council with regard to the list of nutrition claims. [32]. D. Raederstorff, A. Wyss, P.C. Calder, P. Weber, M. Eggersdorfer, Vitamin E function and requirements in relation to PUFA, British Journal of Nutrition 114 (2015) 1113-1122.

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Effects of hail suppression operational programs on hail frequency and environment in Moldova

Abstract

Hailstorms pose a significant threat to all development sectors of the Republic of Moldova. Despite the availability of the intensive hail suppression operational programs the issues of their efficiency are very relevant for many years. In spite of expectations and previous claims the research findings show that the hail suppression activity in Moldova leads to increase of hail incidence rate (statistically tested at the 0.05 confidence level). Active influence on the hail formation processes has also environmental implications leading to the increased pollution of the environment by the active anti-hail components in the protected areas. Given the controversial effects and missing reliable estimates of the economic benefits, as well as environmental implications, additional investments for developing of the anti hail operational programs is not recommended.

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THE EFFECT OF BIODEGRADATION/DEGRADATION OF DEGRADABLE PLASTIC MATERIAL ON COMPOST QUALITY

Abstract

The objective of this study was to find out whether the quality of compost would change during the process of composting carrier bags claimed by manufacturers as compostable or biodegradable in terms of parameters stipulated in the standard ČSN 46 5735 Industrial composts. Eight samples were subjected to the composting process in laboratory conditions. The compost samples were analyzed in the accredited laboratory. All samples met parameters stipulated for Class II. Seven samples of the eight met parameters stipulated in the standard ČSN 46 5735 for Class I. The samples had no influence on compost characteristics: strength, content of water and salt, pH value, content of nutrients or proportion of organic substances; other components of the compost remained unchanged. Optical changes of the compost did not occur either.

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Preliminary Results on Growing Second Generation Biofuel Crop Miscanthus X Giganteus at The Polluted Military Site in Ukraine

-71. PANDEY, V.C., BAJPAI, O., SINGH, N.: Energy crops in sustainable phytoremediation, Renew. Sust. Energ. Rev., 54, 2016, 58-73. PIDLISNYUK, V.: Expanding the Potential of Second Generation Biofuels Crops by Using for Phytoremediation of Sites Contaminated by Heavy Metals: Laboratory Stage. Scientific Bulletin of Kremenchuk National University, 74, 2012, 104-108. PIDLISNYUK, V., STEFANOVSKA, T.: Method for growing plants in heavy metals contaminated soils. Claim for the Invention of Ukraine, #12471, 2013 (in Ukrainian). PIDLISNYUK, V

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E-Waste In Bangladesh: Evaluating The Situation, Legislation And Policy And Way Forward With Strategy And Approach

Gibson K, Tierney JK (2006) Electronic waste management and disposal issues and alternatives. Environ Claims J 18(4):321–332 Gottberg A., Morris J., Pollard S., Mark-Herbert C. and Cook M. (2006), Producer responsibility, waste minimisation and the WEEE Directive, Case studies in eco-design from the European lighting sector, Science of the Total Environment, 359, pp 38– 56. Herat S (2008) Green electronics through legislation and lead free soldering. CLEAN Soil Air Water 36(2):145–151 Huisman, J., & Stevels, A. (2004). Eco-efficient implementation

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Electronic Waste in Bangladesh: Evaluating the Situation, Legislation and Policy and Way Forward With Strategy and Approach

, Florence, Italy Department of Environment, Malaysia (2006) The e-waste inventory project in Malaysia. Department of Environment, Malaysia Gibson K, Tierney JK (2006) Electronic waste management and disposal issues and alternatives. Environ Claims J 18(4):321-332 Gottberg A., Morris J., Pollard S., Mark-Herbert C. and Cook M. (2006), Producer responsibility, waste minimisation and the WEEE Directive, Case studies in ecodesign from the European lighting sector, Science of the Total Environment, 359, pp 38- 56

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Evaluation of Biogas Production and Usage Potential

, Weiland P, Wellinger A. Biogas from Energy Crop Digestion. IEA Bioenergy, 2010. http://www.iea-biogas.net/files/daten-redaktion/download/publications/Workshops/8/5-Energy_crops.pdf. [14] Tilman D, Eich RP, Nops KJ. Biodiversity and ecosystem stability in a decade-long grassland experiment. Nature. 2006;441:629-632. DOI: 10.1038/nature04742. [15] Weiland P. Impact of competition claims for food and energy on German biogas production. Paper presented at the IEA Bio-energy Seminar. Ludlow, UK, April 17th, 2008. http

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