Tag Archives: municipal solid waste

997-1009 O. Chotovinský and V. Altmann
A comparative case study of the efficiency of collection systems for paper and biodegradable municipal solid waste
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A comparative case study of the efficiency of collection systems for paper and biodegradable municipal solid waste

O. Chotovinský* and V. Altmann

Department of Machinery Utilisation, Faculty of Engineering, Czech University of Life Sciences in Prague, Kamycká 129, CZ165 21 Prague 6 – Suchdol, Czech Republic *Correspondence: chotovinsky@tf.czu.cz

Abstract:

The need to increase municipal solid waste recycling rates has led to the study and analysis of recycling schemes from the perspective of the technical issues that may be involved. This paper compares two waste collection systems, which are operating in the Vysočina region of the Czech Republic: a municipal solid waste collection system for paper (including cardboard) and a biodegradable municipal solid waste collection system. Both collection systems were introduced at different times to cover one selected urban area. The emphasis has been placed on an evaluation of the development of individual, separate collections between 2014 and 2016. Analysis of the technological operation and performance of the collections are observed and evaluated by measuring a range of waste collection system indicators. Efficiency levels, especially when it comes to separate collections of both types of municipal solid waste, are compared to their relative representation in the remaining bulk of municipal solid waste. The changes in representation of these types of waste against those in the rest of the municipal solid waste shows which collection systems are more successful from the perspective of the implementation of the directive which covers landfill usage. The results also describe why systems could be more successful within the view of well-chosen or inappropriately-selected technological parameters for materials separation. The possibly statistically significant impact of paper waste production in terms of the relative amount of paper waste across the rest of the municipal solid waste has also been shown.

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1559–1570 O. Chotovinský and V. Altmann
Performance analysis of biodegradable municipal solid waste collection in the Czech Republic
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Performance analysis of biodegradable municipal solid waste collection in the Czech Republic

O. Chotovinský* and V. Altmann

Department of Machinery Utilization, Faculty of Engineering, Czech University of Life Sciences in Prague, Kamycká 129, CZ165 21 Prague 6 – Suchdol, Czech Republic *Correspondence: chotovinsky@tf.czu.cz

Abstract:

The article deals with the issues of biodegradable municipal solid waste management system, focusing on its separate collection. The two basic locations are compared – rural area and urban area. The emphasis is put on evaluation of individual biodegradable municipal solid waste collections development from 2012 to 2015. Individual technological performances of collection are also observed and evaluated (e.g. biodegradable municipal solid waste production, development of container quantity and collection frequency). The observed data also verify the efficiency of biodegradable municipal solid waste management compared to relative representation of this waste in rest municipal solid waste, which is produced in both locations. Also referential locations without separate biodegradable municipal solid waste collection are observed for evaluation. There are one locality of an urban area and one rural area too. The decrease of biodegradable municipal solid waste in rest of municipal solid waste at the basic rural researched area indicates that the directive on landfills could be followed with well-chosen technological parameters of separate biodegradable municipal solid waste collection at a given site. A statistically significant impact of separate biodegradable municipal solid waste production on relative amount of the biodegradable part in rest municipal solid waste has been demonstrated at the side of this basic rural area.

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1169–1179 V. Malijonytė,, E. Dace, F. Romagnoli and M. Gedrovics
Methodology for determining the mixing ratio of selected solid recovered fuels
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Methodology for determining the mixing ratio of selected solid recovered fuels

V. Malijonytė¹,², E. Dace¹*, F. Romagnoli¹ and M. Gedrovics¹

¹Riga Technical University, Institute of Energy Systems and Environment, Azenes 12/1, LV-1048 Riga, Latvia
²Kaunas University of Technology, Institute of Environmental Engineering, Donelaičio g.20, LT-44239 Kaunas, Lithuania
*Correspondence: elina.dace@rtu.lv

Abstract:

Energy recovery is a preferable waste management method for waste that cannot be reused or recycled. For energy recovery, various types of waste with differing properties are being used, e.g. mixed municipal solid waste or end-of-life tires. To achieve a more stable and homogeneous characteristics of the waste derived fuels (RDF, SRF), they can be mixed in a number of ratios. The paper presents a methodology for determining the optimal mixing ratio of three selected waste derived fuels (mixed municipal solid waste, sewage sludge, end-of-life tires) considering environmental and economic aspects. The developed method is based on combining life cycle assessment method, mass balance calculations and multi-criteria analysis (the technique for order of preference by similarity to ideal solution – TOPSIS). The results show that mixing the various waste derived fuels allows obtaining a more sustainable solution than in the case of each separate waste derived fuel.

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