Bio-based FRP composites and their circularity potential: Options for environmental assessment
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
The usage of bio-based materials to substitute fossil resource-based ones, as well as circular economy principles, are gaining importance under the sustainability paradigm (Ramesh 2019). Complex bio-based materials, such as natural fiber reinforced polymer (NFRP) composites, require an environmental life cycle assessment (LCA) to critically assess and verify the anticipated ecological benefit associated with the usage of renewable materials and their recyclability prospects (Andrew & Dhakal 2022). LCA can serve to identify hotspots and optimization measures within the value chain concerning raw material sourcing, transportation, and adaptation of manufacturing processes. Other important roles in the ecological performance evaluation of NFRP composites are the consideration of substitution potentials of the bio-based materials in respective industries and repair and recycling prospects (Zhao et al. 2022).
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2022)
The usage of bio-based materials to substitute fossil resource-based ones, as well as circular economy principles, are gaining importance under the sustainability paradigm (Ramesh 2019). Complex bio-based materials, such as natural fiber reinforced polymer (NFRP) composites, require an environmental life cycle assessment (LCA) to critically assess and verify the anticipated ecological benefit associated with the usage of renewable materials and their recyclability prospects (Andrew & Dhakal 2022). LCA can serve to identify hotspots and optimization measures within the value chain concerning raw material sourcing, transportation, and adaptation of manufacturing processes. Other important roles in the ecological performance evaluation of NFRP composites are the consideration of substitution potentials of the bio-based materials in respective industries and repair and recycling prospects (Zhao et al. 2022).
Development of local municipal solid waste management in the Western Transdanubia region of Hungary
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
Hungarian municipal solid wastes (MSW) management has developed tremendously over the past 15 years. More than 3,000 landfills and dumps had been closed, just to mention one improvement. However, still, lots of work is necessary to accomplish the EU’s ambitious aim of decreasing landfilling and increasing recycling and composting.
© Lehrstuhl fĂĽr Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2020)
Hungarian municipal solid wastes (MSW) management has developed tremendously over the past 15 years. More than 3,000 landfills and dumps had been closed, just to mention one improvement. However, still, lots of work is necessary to accomplish the EU’s ambitious aim of decreasing landfilling and increasing recycling and composting.
Management of contraries in biogenic waste
© Wasteconsult International (5/2017)
Contraries in biogenic waste have been a well-known phenomenon since the source separation began about 25 years ago. The various stakeholders influencing the Content of contraries in biogenic waste are discussed.
© Wasteconsult International (5/2017)
Contraries in biogenic waste have been a well-known phenomenon since the source separation began about 25 years ago. The various stakeholders influencing the Content of contraries in biogenic waste are discussed.
Production of clean compost out of mixed MSW: a giant leap towards Zero Waste
© Wasteconsult International (5/2017)
One of the latest innovations in Mechanical Biological Treatment-plants is a new process, called SORDISEP (SORting, DIgestion & SEParation).
© Wasteconsult International (5/2017)
One of the latest innovations in Mechanical Biological Treatment-plants is a new process, called SORDISEP (SORting, DIgestion & SEParation).
Characterization of municipal solid waste by particle size and pilot sorting tests
© Wasteconsult International (5/2017)
The Province of Québec in Canada has the objective to ban disposal (landfilling) of organic matter until 2020.
© Wasteconsult International (5/2017)
The Province of Québec in Canada has the objective to ban disposal (landfilling) of organic matter until 2020.
Composting facility for Dar es Salaam
© Wasteconsult International (5/2017)
The Free and Hanseatic City of Hamburg (FHH) plans and finances a composting facility for its sister city Dar es Salaam (Tanzania).
© Wasteconsult International (5/2017)
The Free and Hanseatic City of Hamburg (FHH) plans and finances a composting facility for its sister city Dar es Salaam (Tanzania).
Home composting of vegetable and fruit scraps
© Wasteconsult International (5/2017)
This paper focused on the composting of vegetable and fruit scraps in simple composting units. In the study, two home-made reactors were used.
© Wasteconsult International (5/2017)
This paper focused on the composting of vegetable and fruit scraps in simple composting units. In the study, two home-made reactors were used.
Status and new trends / perspectives of MBT in Germany
© Wasteconsult International (5/2015)
Waste treatment management needs to realign specifications of sustainability of resources. According to present studies, waste treatment management is significantly able to contribute to material and energy recovery from solid waste. In Europe, implementation of the European Waste Framework Directive leads to changing solid waste arisings with regard to amount, quality and disposition. Meanwhile, significant over-capacities of solid waste treatment are present in the german solid waste market. Contradictorily, solid waste arisings are expected to remain static or even decrease against the background of Germany by the Closed Substance Cycle Waste Management Act (KrWG) which will lead to increasing recyclable fractions as well as increasing biowaste. Solid waste which is imported from other European countries currently balances this effect insignificantly.
© Wasteconsult International (5/2015)
Waste treatment management needs to realign specifications of sustainability of resources. According to present studies, waste treatment management is significantly able to contribute to material and energy recovery from solid waste. In Europe, implementation of the European Waste Framework Directive leads to changing solid waste arisings with regard to amount, quality and disposition. Meanwhile, significant over-capacities of solid waste treatment are present in the german solid waste market. Contradictorily, solid waste arisings are expected to remain static or even decrease against the background of Germany by the Closed Substance Cycle Waste Management Act (KrWG) which will lead to increasing recyclable fractions as well as increasing biowaste. Solid waste which is imported from other European countries currently balances this effect insignificantly.
Experimental check of digestate processing via vermicomposting
© Wasteconsult International (5/2015)
The article examines potential processing of digestate via vermicomposting. The experiments focused on the assessment of the properties of vermicomposts produced from conventional biowastes and biowastes with added digestate. The properties of vermicomposts were examined by means of pot vegetation experiments, agro chemicalanalyses of the growth substrate and of the grown plant mass. The test confirmed that the application of vermicompost with added digestate had a positive effect on the nutrient intake by plants as well as on the quality of the growth substrate. Moreover, there were interesting differences in the contents of hazardous elements. For example, the content of lead analyzed in the substrate made from vermicompost and added digestate was 17.07 mg/kg, whereas in the substrate made from vermicompost only lead amounted to 24.49 mg/kg. In searching for various methods how to process digestate, vermicomposting appears as a feasible Option.
© Wasteconsult International (5/2015)
The article examines potential processing of digestate via vermicomposting. The experiments focused on the assessment of the properties of vermicomposts produced from conventional biowastes and biowastes with added digestate. The properties of vermicomposts were examined by means of pot vegetation experiments, agro chemicalanalyses of the growth substrate and of the grown plant mass. The test confirmed that the application of vermicompost with added digestate had a positive effect on the nutrient intake by plants as well as on the quality of the growth substrate. Moreover, there were interesting differences in the contents of hazardous elements. For example, the content of lead analyzed in the substrate made from vermicompost and added digestate was 17.07 mg/kg, whereas in the substrate made from vermicompost only lead amounted to 24.49 mg/kg. In searching for various methods how to process digestate, vermicomposting appears as a feasible Option.
Operation experiences at the MBT Maresme, the latest wet anaerobic digestion plant for MSW built in Spain
© Wasteconsult International (5/2015)
The MBT Maresme is the latest wet anaerobic digestion plant for the Organic Fraction from Municipal Solid Waste (MOR -Materia Orgánica Residual), that has been built in Spain, in countercurrent to the observed development towards MBT plants with only composting technology. In the present paper a short presentation of the MBT Maresme is given before the operation experiences during the start-up phase and the guarantee tests are discussed. Despite the challenge the operation of this facility under aggravating circumstances implied, the achieved performance and clearly advantageous energetic balance confirm the integration of a digestion step in MBT plants as a valid and valuable concept.
© Wasteconsult International (5/2015)
The MBT Maresme is the latest wet anaerobic digestion plant for the Organic Fraction from Municipal Solid Waste (MOR -Materia Orgánica Residual), that has been built in Spain, in countercurrent to the observed development towards MBT plants with only composting technology. In the present paper a short presentation of the MBT Maresme is given before the operation experiences during the start-up phase and the guarantee tests are discussed. Despite the challenge the operation of this facility under aggravating circumstances implied, the achieved performance and clearly advantageous energetic balance confirm the integration of a digestion step in MBT plants as a valid and valuable concept.
