Search Results

1 - 10 of 25 items :

  • physical tests x
  • Process Engineering x
  • Chemical Engineering x
Clear All
Optimization Of Protocol For Biodiesel Production Of Linseed (Linum Usitatissimum L.) Oil

. Agric. 22, 98-104. 8. American Standards for Testing of Materials. (2003). American Society of Agricultural Engineers (ASAE), St. Joseph, MI. 9. Nosheen, A., Bano A. & Ullah, F. (2012). Optimization of biodiesel production from Yellow sarson ( Brassica campestris L.) oil. Energy Sourc. Part A. 35, 278-281. DOI:10.1080/1556 7036.2010.511431. 10. Ahmad, M., Khan, M.A., Zafar, M. & Sultana, S. (2010). Environment friendly renewable energy from Sesame biodiesel. Energy Sourc. Part A , 32 (2), 189-196. DOI: 10

Open access
Study of selected physical, chemical and biological properties of selected materials intended for contact with human body

. Cambridge England. 6. Curtis, R.V. & Watson, T.F. Dental biomaterials Imaging, testing and modelling. CRC Press. Cambridge England. 7. Pusz, A., Szymiczek, M. & Michalik, K.; Ageing process influence on mechanical properties of polyamide-glass composites applied in dentistry; J. Achiev. Mater. Manufact. Engineer. 38 (2010) 49–55. 8. Rojek, M., Szymiczek, M. & Wróbel, G.; Mechanical properties of polyamide matrix composites filled with titanates modified-coal; J. Achiev. Mater. Manufact. Engineer. 46 (2011) 25–32. 9. Pusz, A., Szymiczek, M

Open access
Influence of e-beam irradiation on the chemical and crystal structure of poly(aliphatic/aromatic-ester) multiblock thermoplastic elastomers

., Bartkowiak, A., Prowans, P. & Slonecki, J. (2000), Physical and mechanical behaviour of electron-beam irradiated and ethylene oxide sterilized multiblock polyester. J Mater. Sci. Mater. Med. , 11, pp. 757-762, DOI: 10.1023/A:1008936114611. Prowans, P., El Fray, M., Slonecki, J. (2002) Biocompatibility studies of new multiblock poly(esterester)s composed of poly(butylene terephthalate) and dimerized fatty acid. Biomaterials , 23, pp. 2973-2978, DOI: 10.1016/S0142-9612(02)00026-1. Renke-Gluszko, M. & El Fray, M. (2004

Open access
Development of approach to modelling and optimization of non-stationary catalytic processes in oil refining and petrochemistry

Academic/ Plenum Publishers. 9. Main constructive types of organic synthesis equipment. Retrieved October 15, 2011, from http://rudocs.exdat.com/docs/index-29959.html. 10. Anslyn, E.V., Dougherty, D.A. (2006). Modern physical organic chemistry , California: University Science Books. 11. Reutov, O. A., Kurtz, A.L., Butin, K.P. (2009). Organic chemistry . Part 2. Moscow, MSU.

Open access
An appraisal of the properties of bottom waste obtained from bio-mass congestion to estimate the ways of its environmental use

Abstract

The bottom waste obtained from bio-mass burning shows a huge variability of chemical and physical properties, depending on the kind of bio-mass, the type of a cauldron and burning parameters. The huge variability of the bottom ashes from the incineration plant and co-combustion of bio-mass makes it difficult to find any way to its management. In reality, only the bottom ashes from coal combustion and the small amount from lignite combustion are used, mainly in the building industry and in mining industry. The article presents the initial research, concerning the estimation of the properties of the bottom ashes obtained from bio-mass congestion in the fluidized-bed boiler to use them safely for the environment. To determine the influence of the tested waste on plants, a number of pot experiments have been conducted. The plants which have been used are recommended for phytotoxicity estimation, and are also used for biological reclamation.

Open access
Reactivity of nano zero-valent iron in permeable reactive barriers

Abstract

In this paper, the ability of nZVI to remove heavy metals (Cd, Cu, Ni, Pb, Zn) from multicomponent aqueous solutions was investigated through batch experiments. The experimental data were fitted to a second-order kinetic model based on solid capacity. The data for copper and lead fitted well into the second-order kinetic model, thus suggesting that the adsorption had a physical character. The values of the removal ratio and the second-order rate constant indicated that the order of adsorption priority of nZVI was as follows: Pb>Cu>Zn>Cd>Ni. The adsorption isotherm data were described by the most conventional models (Henry, Freundlich, and Langmuir). Equilibrium tests showed that copper and zinc were removed from the solution by adsorption processes, i.e., complexation and competitive adsorption. The test results suggested that the removal processes using nZVI are more kinetic than equilibrium. The study demonstrated that nZVI is favorable reactive material; however, comprehensive investigation should be performed for further in situ applications in PRB technology.

Open access
Utilization of waste gypsum in fertilizer production

Abstract

The results of the study regarding utilization of the waste gypsum formed as a by-product during the production of the magnesium sulphate from dolomite have been presented. The use of this waste have been proposed for the production of granulated multi-component fertilizers containing 25% N; 8% S; 14% CaO and 3.5% MgO. In the process of fertilizer production, the urea which will be bounded with the calcium and magnesium sulphate from the waste in the form of adducts of CaSO4 . 4CO(NH2)2 and MgSO4 . CO(NH2)2 . 3H2O will be the source of nitrogen in the fertilizer. It has been stated on the basis of the laboratory tests that the fertilizer with the assumed composition can be obtained by means of granulation of the raw material pulp, along with the dried and ground product return. The possibility of the production of the fertilizer with good physical properties according to the assumed concept has been confirmed in the pilot scale

Open access
The influence of ozonation on the activated carbon adsorption of phenol and humic acid

References Le Cloirec P., Brasquet C., Subrenat E.: Adsorption onto fibrous activated carbon: applications to water treatment, Energy and Fuels, 1997, 11, 331 - 336. Hermanowicz W., Dojlido J., Dożańska W., Koziorowski B., Zerbe J.: (Arkady) Physical and chemical examination of water and wastewater, Warszawa 1999 (in Polish). Pąprowicz J. T.: Ocena pylistych węgli aktywnych do usuwania fenoli z oczyszczanej wody. Węgiel aktywny w ochronie środowiska i przemyśle , 2004, 130 - 141

Open access
Polyetherols from melamine cyanurate and ethylene carbobate - synthesis and application

,939,517. Washington, D.C.: U.S. Patent and Trademark Office. Klimiec, J., Fabisz, E., Researches on synthesis of propylene carbonate. Chem. Ind. 79 (10) 339-340 2000. Clements, J.H. Reactive Applications of Cyclic Alkylene Carbonates. Ind. Eng. Chem. Res. (2003). 42 (4), pp 663-674, DOI: 10.1021/ie020678i. Kowalski, P. (2004). Laboratory of Organic Chemistry ; WNT: Warsaw, (in Polish). Kocot-Bończak, D. (1977). Laboratory Experiments in Physical Chemistry PZWL: Warsaw, (in

Open access
The influence of the ageing-fatigue degradation on the mechanical properties of glass-reinforced composites

thermography in the assessment of defects of aircraft composites. NDT and E Int. Vol. 36, 433–439. dx.doi.org/10.1016/S0963-8695(03)00052-5. 4. Avdelidis, N.P., Ibarra-Castanedo, C., Maldague, X., Marioli-Riga, Z.P. & Almond, D.P. (2004). A thermographic comparison study for the assessment of composite patches. Infrared Phys. Technol. Vol. 45, 291–299. DOI: 10.1117/12.771082. 5. Bates, D., Smith, G., Lu, D. & Hewitt, J. (2000). Rapid thermal non-destructive testing of aircraft components. Composites: Part B Vol. 31, 175–185. DOI: 10.1016/S1359

Open access