Category Archive for "Year 2012 Issue 11"

Hybrid sorbents in metal ions removal from water and wastewater

Hybrid sorbents in metal ions removal from water and wastewater KOŁODYŃSKA D., KOWALCZYK M., GĘCA M., HUBICKI Z. Please cite as: CHEMIK 2012, 66, 11, 1249-1258 The possibility of hybryd ion exchangers (HIX) application in the removal of heavy metal ions was presented. They combine the unique properties of hydrated metal oxides with the mechanical and thermal stability of synthetic ion exchangers. In the investigations the commercial ion exchangers Lewatit FO36 and Purolite Arsen Xnp were used. The kinetics of the sorption process of Cu(II) and...

The possibilities of the application of algal biomass in the agriculture

The possibilities of the application of algal biomass in the agriculture CHOJNACKA K., SAEID A., MICHALAK I. Please cite as: CHEMIK 2012, 66, 11, 1235-1248 The present study describes algae (micro- and macroalgae) as a new raw material for agriculture, whose potential has not been fully exploited yet. Algae are a challenge for sustainable agriculture. They are known for their rich content of nutrients, therefore are used as dietary supplements. In modern agriculture, can be used in animal nutrition as carriers of trace elements. The...

Municipal waste management model with the use of optical sorting elements

Municipal waste management model with the use of optical sorting elements LIGUS G. Please cite as: CHEMIK 2012, 66, 11, 1229-1234 The paper outlines the opportunities for creating waste management systems in terms of the changing legal premises in Poland. The author proposes using a hierarchical model, applied in the environmental management, as a tool assisting the development of the waste management system concept. The paper discusses the basic aspects of implementing elements of optical segregation into the mixed municipal waste management system. Keywords: waste sorting,...

Nano-modified non-woven filter fabrics capable of holding viruses

Nano-modified non-woven filter fabrics capable of holding viruses TYROLCZYK E., WIELGUS K., SZALATA M., MAKOWIECKA J., WESOŁEK D., LIPIŃSKI D., ZEYLAND J., SZALATA M., SŁOMSKI R. Please cite as: CHEMIK 2012, 66, 11, 1219-1228 In case of presence of air pollution with harmful microorganisms it seems reasonable to make use of specialist filtering systems. As a result of using properly selected materials the filtration systems can be 100% biodegradable. Surface modification of the filter with nano-fibres brings reduction in mesh size and increases the specific surface...

Analytical problems of waste stability degree determination after biological treatment

Analytical problems of waste stability degree determination after biological treatment M. BOŻYM Please cite as: CHEMIK 2012, 66, 11, 1211-1218 In several European countries, the parameter AT-4 is used to determine the degree of waste stabilization after treatment. The method is used among others in Germany, Austria and Italy. In Poland, the research of an adaptation of this method to determine waste stabilization level after biological treatment in aerobic conditions. Methodology for determining the rate of AT-4 describe the German and Austrian standards. In accordance...

Modifiers applied in the combustion process of fuel oils and solid fuels

Modifiers applied in the combustion process of fuel oils and solid fuels GUZIAŁOWSKA-TIC J., TIC W.J. Please cite as: CHEMIK 2012, 66, 11, 1203-1210 One of the priorities of the protection of the atmosphere against polluting with toxic substances is the emissions reduction of volatile organic compounds and carbon monoxide. Helpful in this range could be catalysts improving the effect of the fuel combustion. In this paper a role of catalysts in the environmental protection was described as well as the latest trend in...

Spent electrolyte from lead-acid battery utilization

Spent electrolyte from lead-acid battery utilization PASZEK A., JAROSZEK H. Please cite as: CHEMIK 2012, 66, 11, 1196-1202 The present paper describes the results of laboratory scale study on heavy metal removal from lead-acid battery waste. The obtained level of purification allowed obtaining magnesium sulphate MgSO4?7H2O for fertilizers. Keywords: waste, lead-acid battery, reuse, magnesium sulfate Read more:

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Application of Life Cycle Assessment (LCA) to assess the environmental impact of biomass cultivation processes dedicated for energy purposes

Application of Life Cycle Assessment (LCA) to assess the environmental impact of biomass cultivation processes dedicated for energy purposes SAMSON-BRĘK I. Please cite as: CHEMIK 2012, 66, 11, 1190-1195 Environmental life cycle assessment (LCA ? Life Cycle Assessment) in Poland is still a relatively new method of estimating the environmental impact of production processes. The main objective of the analysis is effective management of various processes in order to minimize consumption of non-renewable raw materials, fuels and energy and also effective management of by-products and...

Perspectives for global development of biofuel technologies to 2050

Perspectives for global development of biofuel technologies to 2050 BIERNAT K. Please cite as: CHEMIK 2012, 66, 11, 1178-1189 The paper discusses the characteristics of biofuels used in transport, along with concise description of production technology thereof. Preferable direction of development for those technologies is presented, taking into consideration also other resources, including waste substances and carbon dioxide. WtL and xTL processes are characterised. The objectives and preferred technologies of biofuel production are outlined, as defined by European Strategic Research Agenda and Technology Roadmap ? Biofuels...

Sorption properties of sodium bicarbonate

Sorption properties of sodium bicarbonate Barbara WALAWSKA B., SZYMANEK A., PAJDAK A., NOWAK M., Please cite as: CHEMIK 2012, 66, 11, 1169-1176 The results of laboratory tests to determine the effect of mechanical and thermal activation on the sorption properties of sodium bicarbonate are reported. The best sorption properties were found in ground sorbent after activation at 250°C. The examination of the surface area confirmed the macroporous character of the modified sodium bicarbonate. Reactivity tests ascertained its excellent sorption properties. Keywords: sorption properties, surface area, reactivity Read...

Category Archives: Year 2012 Issue 11