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Serbia: A new process for waste rubber and plastic recycling
Biljana Jovanovic,Rade Vorkapic,Ozren Ocic,Larisa Kurcubic
Perspectives of Innovations, Economics and Business , 2010,
Abstract: This paper intends to describe a new technological process for waste rubber and plastic recycling up to the commercial components in safe environmental friendly way. Researches and all relevant technical-technological data related to this process are checked at constructed pilot plant. The future construction of these units for waste rubber and plastic recycling will allow interested parties to achieve the environmental effectiveness and economic efficiency.
Recycling and recovery of post-consumer plastic solid waste in a European context  [PDF]
Brems Anke,Baeyens Jan,Dewil Raf
Thermal Science , 2012, DOI: 10.2298/tsci120111121b
Abstract: The disposal of waste plastics has become a major worldwide environmental problem. The USA, Europe and Japan generate annually about 50 million tons of post-consumer plastic waste, previously landfilled, generally considered as a non-sustainable and environmentally questionable option. Landfill sites and their capacity are, moreover, decreasing rapidly, and legislation is stringent. Several European Directives and US legislation concern plastic wastes and the required management. They are briefly discussed in this paper. New processes have emerged, i.e., advanced mechanical recycling of plastic waste as virgin or second grade plastic feedstock, and thermal treatments to recycle the waste as virgin monomer, as synthetic fuel gas, or as heat source (incineration with energy recovery). These processes avoid land filling, where the non-biodegradable plastics remain a lasting environmental burden. The paper reviews these alternative options through mostly thermal processing (pyrolysis, gasification and waste-to-energy). Additional research is, however, still needed to confirm the potential on pilot and commercial scale. [Acknowledgments. The research was partly funded by the Fundamental Research Funds for the Central Universities RC1101 (PR China) and partly funded by Project KP/09/005 (SCORES4CHEM Knowledge Platform) of the Industrial Research Council of the KU Leuven (Belgium).]
Preparing Attitude Scale to Define Students Attitudes about Environment, Recycling, Plastic andPlastic Waste  [cached]
Cagri AVAN,Bahattin AYDINLI,Fatma BAKAR,Yunus ALBOGA
International Electronic Journal of Environmental Education , 2011,
Abstract: The aim of this study is to introduce an attitude scale in order to define students attitudes about environment, recycling, plastics, plastic waste. In this study, 80 attitude sentences according to 5-point Likert-type scale were prepared and applied to 492 students of 6th grade in the Kastamonu city center of Turkey. The scale consists of cognitive, affective, and psychomotor skills domains. After the factor analysis it was found that they have 3, 4 and 5 factors accordingly. After the reliability analysis the alpha values for cognitive, affective and psychomotor scales are .854, .871 and .826 respectively. As a result, it is found that the scale can be used to define cognitive, affective and psychomotor attitudes.
Utilization and Recycling of Industrial Magnesite Refractory Waste Material for Removal of Certain Radionuclides
T.N. Morcos,N.A. Tadrous,E.H. Borai
Research Journal of Applied Sciences , 2012,
Abstract: Increased industrialization over the last years in Egypt has resulted in an increased and uncontrolled generation of industrial hazardous waste. The current lack of management of the solid waste in Egypt has created a situation where large parts of the land (especially industrial areas) are covered by un-planned dumps of industrial wastes. Consequently, in the present resaerch, industrial magnesite waste produced in large quantities after production process of magnesium sulfate in Zinc Misr factory, Egypt, was tried to be recycled. Firstly, this material has been characterized applying different analytical techniques such as Infrared spectroscopy (IR), surface analyzer (BET), Particle Size Distribution (PSD), elemental analysis by X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD). The magnesite material has been used as a source of producing aluminum, chromium and magnesium oxides that has better chemical stability than conventional metal oxides. Secondly, utilization of magnesite material for removal of certain radionuclides was applied. Different factors affecting the removal capability such as pH, contacting time, metal concentration, particle size were systematically investigated. The overall objective was aimed at determining feasible and economic solution to the environmental problems related to re-use of the industrial solid waste for radioacive waste management.
Material-Efficient Utilization of Waste Oils—Biodegradability and Other Chemical Properties of Vegetable Recycling Oils  [PDF]
Hanna Prokkola, Toivo Kuokkanen, Ulla Lassi
Green and Sustainable Chemistry (GSC) , 2012, DOI: 10.4236/gsc.2012.24019
Abstract: Material efficiency is nowadays an essential topic to promote the sustainable use of natural resources, waste materials and industrial by-products, in agreement with the principle of sustainable development and LCA (life cycle assessment). In this research it was determined the biodegradation of used vegetable oil based products and their important physico- chemical properties for their suitability in different applications such as chain oil in the forestry equipment and mold oil in concrete casting etc. Biodegradability is a measure of the ecological nature of products, and thus from an environ- mental point of view, is the most important evaluated property in this research. As a result, all measured properties of the studied recycled vegetable oils show that the products are environmentally friendly. Two types of vegetable oil were studied; three chain oils and two mold oils. The degree of biodegradation (BOD28) of the mold oils, was about 77 % and the biodegradation of chain oils was about 60% - 62%. In addition, this paper also presents a process outline for manu- facturing recycling vegetable oils.
Plastic waste recycling
M.B Dalen, T Nasir
Science World Journal , 2009,
Abstract: No
Review of Waste Tire Reuse& Recycling in China —current situation, problems and countermeasures  [cached]
Hui-zhi WANG,He XU,Xue-jian XUAN
Advances in Natural Science , 2009, DOI: 10.3968/17
Abstract: This article first expounds the current situation on waste tire generation and recycling in China. Then it analyses the existing problems and causes in the industry of waste tire recycling. Finally, it proposes countermeasures and suggestion on promoting a healthy waste tire industry. These strategies include accelerating the speed of drawing up regulations on waste tire reuse and recycling management, completing encourage policies and mechanism of waste tire resource recycling industry, developing adequately the influence of China Rubber Industry Association (CRIA) and China Tire Retreading And Utilization Association (CTRA), and etc.. China has an abundant resource of waste tires and recycling potential. And it will be of great significance to mitigating the scarcity of rubber resource, improving ecological environment, developing circular economy and building resource-efficient society in China if we can reuse and recycle waste tires properly and form a healthy waste tire industry. Key words: waste tires; circular economy; ecological environment; reuse& recycling
Plastic Recycling Problems and it`s Health Aspects in Tehran  [PDF]
G. Omrani,A. Maleki,M. Zamanzadeh,M. Soltandalal
Journal of Applied Sciences , 2005,
Abstract: The main objective of a solid waste management system is to effectively safeguard the public health, safety and welfare. This study demonstrates the present status of plastic waste management in Tehran and outlines the principle guidelines and policies regarding collection, handling and recycling of plastic waste and its microbial pollution in Tehran. Results showed that about 2,125,688 and 2,355,740 tons of Municipal Solid Waste (MSW) were generated per year in Tehran in 1999 and 2003, respectively. The plastic has grown than other category of MSW in Tehran from 8.01% by weight in 1999 to 9.61% in 2003. Approximately 50 tons per year of total plastic waste recycled and the others dispose in the Kahrizak landfill. The thermoplastic waste produced annually has begun to increase from 1.5% by weight in 1999 to 2.88% in 2003. According to the studies on plastics recycling in Tehran, there are a significant difference in terms of technological and scientific aspects of recycling between industrial countries and our country. Plastic recycling is carring out mechanically in Tehran. However, this simple method is not scientifically approved for collection, separation, recycling process and products generation. The results obtained by microbial tests form samples of recycled products showed the contamination of products such as Bacillus, Staphylococcus, Serratia and Entrobacter. Thus, the generated products have low quality because of lack of continual monitoring and technical program on plastic recycling and lack of public participation.
Review of Waste Tire Reuse& Recycling in China: current situation, problems and countermeasures
WANG Hui-zhi,XU He,XUAN Xue-jian
Advances in Natural Science , 2009,
Abstract: This article first expounds the current situation on waste tire generation and recycling in China. Then it analyses the existing problems and causes in the industry of waste tire recycling. Finally, it proposes countermeasures and suggestion on promoting a healthy waste tire industry. These strategies include accelerating the speed of drawing up regulations on waste tire reuse and recycling management, completing encourage policies and mechanism of waste tire resource recycling industry, developing adequately the influence of China Rubber Industry Association (CRIA) and China Tire Retreading And Utilization Association (CTRA), and etc.. China has an abundant resource of waste tires and recycling potential. And it will be of great significance to mitigating the scarcity of rubber resource, improving ecological environment, developing circular economy and building resource-efficient society in China if we can reuse and recycle waste tires properly and form a healthy waste tire industry.
OPPORTUNITIES FOR RECYCLING OF WASTE TIRES  [PDF]
PERGE, Péter,BOROS, Norbert
Debreceni M?szaki K?zlemények , 2012,
Abstract: Managing waste tires is an important challenge considering both environment protection and economy. Recovery and recycling of waste tires is well resolved in Hungary. The last years the recovery decreased therefore the amount of recycled tires decreased as well. There are many ways of recycling: retread the worn-out tread, energy recovery, material recycling and creating new products. In this paper we examined ways of recycling waste tires emphasizing pros and cons of different methods.
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