ABSTRACT The main focus of landfill mining projects is the separation and valorization of the inh... more ABSTRACT The main focus of landfill mining projects is the separation and valorization of the inherent resources of landfills. The on-going research project “TönsLM” wants to show that there is a possibility to create valuable outputs with enhanced treatment processes. To reach this goal a pre-conditioning setup was developed which makes a first mechanical treatment directly onsite the landfill. The outputs of the pre-conditioning setup will be used for further upscale processes in real size waste treatment plants. The concept of the pre-conditioning setup as well as treatment results are presented in this paper.
In order to fulfil the EU-Landfill Directive by reducing the amount of biodegradable waste being ... more In order to fulfil the EU-Landfill Directive by reducing the amount of biodegradable waste being landfilled the EU-Life+ demonstration project MARSS (Material Advanced Recovery Sustainable Systems) was designed. To enhance the efficiency of mechanic biological treatment plants (MBT), the primary objective of MARSS is to demonstrate that there is an effective way to post-treat dried/stabilized mixed municipal solid waste (MMSW) from the MBT output. Consequently a refined renewable biomass fuel (RRBF), suitable for the combustion in small and decentralized combined heat and power plants, is/can be generated. Thereby, greenhouse gas emissions will be reduced by substituting fossil fuel as well as by avoiding biodegradable substances from being landfilled. A demonstration plant was added to an existing MBT plant in Mertesdorf, Germany, where waste is aerobically dried in rotting boxes leading to a loss of water (and organic matter) of ~35 wt.-%. The dried waste has a higher net calorifi...
Waste Management & Research: The Journal for a Sustainable Circular Economy, 2021
Bioplastics are developed to replace oil-derived plastics due to the high consumption of oil and ... more Bioplastics are developed to replace oil-derived plastics due to the high consumption of oil and related environmental impacts of oil-derived plastics. It was predicted that bioplastics can potentially replace 94% of conventional plastic production. With their increasing market share, more bioplastics will end in conventional post-consumer plastic waste streams. Although part of bioplastics is biodegradable and could be biologically decomposed, mechanical recycling achieves higher ecological benefits mainly because of its low pollution risk and the reduction in requirement for virgin feedstock. In this study, the classification of lightweight packaging waste with inflow of bioplastics, more specifically polylactic acid (PLA), was analysed with near-infrared spectroscopy to evaluate the influence of bioplastics on sorting processes of conventional plastics. Besides which, the sortability of PLA was determined through investigating the physical and the spectroscopic characteristics of...
Classification by screening is one of the basic preconditioning steps in waste treatment processi... more Classification by screening is one of the basic preconditioning steps in waste treatment processing. The efficiency of separating target particles in one of the outputs is a temporal process and therefore determines the throughput of the screening aggregate. The knowledge of the quantitative and temporal output of particles, not only in terms of discrete points in time but continuous detection, leads to important data for modeling of waste treatment processes. One method that allows the detection and identification of particles is to mark the latter with RFID-tags and record their path of exit. First test results with a trommel screen could not only prove the success of this method but also show the quantitative influence of process parameters, e. g. the revolution speed, on the temporal output. The aim of the paper is to show how the method works, how this contributes to waste process modeling and why the knowledge of process parameter influences on the temporal output is important...
... Risk assessment of coccidiostats after cross-contamination of feed: Implications for animal a... more ... Risk assessment of coccidiostats after cross-contamination of feed: Implications for animal and human health. by U Bertelsen, JLCM Dorne, ML Fernandez-Cruz, DW Renshaw, K Peltonen, … A Anadon, A Feil, P Sanders, PW Wester, J Fink-Gremmels show all authors. ...
Die in der Aufbereitung fester Abfallstoffe eingesetzten Technologien sind mit wenigen Ausnahmen ... more Die in der Aufbereitung fester Abfallstoffe eingesetzten Technologien sind mit wenigen Ausnahmen der mechanischen Verfahrenstechnik zuzuordnen. Aus dem Abfallgemisch werden durch Trennprozesse einzelne Stoffgruppen soweit angereichert, dass sie als Wertstoffkonzentrat fur Folgeprozesse verwendet werden konnen. Recyclingprozesse sind in der Regel mehrstufig aufgebaut, wobei die mechanische Aufbereitung sehr haufig die Eingangsstufe bildet. Gegenstand der Aufbereitungstechnik beim Wertstoffrecycling ist die Erzeugung von Zwischen- oder Endprodukten aus Abfallgemischen mittels physikalischer und/oder untergeordnet biologischer oder chemischer Prozesse. Alle Prozesse, auch Verfahren genannt, bestehen aus Kombinationen einzelner Prozessstufen, die auch als Grundoperationen bezeichnet werden. Im vorliegenden Lehrbuch werden die hierzu in der betrieblichen Praxis zum Einsatz kommenden Zerkleinerungs-, Klassier- sowie Sortieraggregate beschrieben und in Bezug gesetzt zu den stofflichen Eigenschaften von Abfallgemischen, da diese vielfach die Auswahl an Technik masgeblich beeinflussen.
This report gives a technological description of the four common collection and recycling schemes... more This report gives a technological description of the four common collection and recycling schemes that have been tested in the Netherlands as part of the pilot beverage cartons in 2013. During this pilot the collection and recycling of beverage cartons was tested in 37 different municipalities, with various separate collection systems and 2 recovery facilities.
ABSTRACT The main focus of landfill mining projects is the separation and valorization of the inh... more ABSTRACT The main focus of landfill mining projects is the separation and valorization of the inherent resources of landfills. The on-going research project “TönsLM” wants to show that there is a possibility to create valuable outputs with enhanced treatment processes. To reach this goal a pre-conditioning setup was developed which makes a first mechanical treatment directly onsite the landfill. The outputs of the pre-conditioning setup will be used for further upscale processes in real size waste treatment plants. The concept of the pre-conditioning setup as well as treatment results are presented in this paper.
In order to fulfil the EU-Landfill Directive by reducing the amount of biodegradable waste being ... more In order to fulfil the EU-Landfill Directive by reducing the amount of biodegradable waste being landfilled the EU-Life+ demonstration project MARSS (Material Advanced Recovery Sustainable Systems) was designed. To enhance the efficiency of mechanic biological treatment plants (MBT), the primary objective of MARSS is to demonstrate that there is an effective way to post-treat dried/stabilized mixed municipal solid waste (MMSW) from the MBT output. Consequently a refined renewable biomass fuel (RRBF), suitable for the combustion in small and decentralized combined heat and power plants, is/can be generated. Thereby, greenhouse gas emissions will be reduced by substituting fossil fuel as well as by avoiding biodegradable substances from being landfilled. A demonstration plant was added to an existing MBT plant in Mertesdorf, Germany, where waste is aerobically dried in rotting boxes leading to a loss of water (and organic matter) of ~35 wt.-%. The dried waste has a higher net calorifi...
Waste Management & Research: The Journal for a Sustainable Circular Economy, 2021
Bioplastics are developed to replace oil-derived plastics due to the high consumption of oil and ... more Bioplastics are developed to replace oil-derived plastics due to the high consumption of oil and related environmental impacts of oil-derived plastics. It was predicted that bioplastics can potentially replace 94% of conventional plastic production. With their increasing market share, more bioplastics will end in conventional post-consumer plastic waste streams. Although part of bioplastics is biodegradable and could be biologically decomposed, mechanical recycling achieves higher ecological benefits mainly because of its low pollution risk and the reduction in requirement for virgin feedstock. In this study, the classification of lightweight packaging waste with inflow of bioplastics, more specifically polylactic acid (PLA), was analysed with near-infrared spectroscopy to evaluate the influence of bioplastics on sorting processes of conventional plastics. Besides which, the sortability of PLA was determined through investigating the physical and the spectroscopic characteristics of...
Classification by screening is one of the basic preconditioning steps in waste treatment processi... more Classification by screening is one of the basic preconditioning steps in waste treatment processing. The efficiency of separating target particles in one of the outputs is a temporal process and therefore determines the throughput of the screening aggregate. The knowledge of the quantitative and temporal output of particles, not only in terms of discrete points in time but continuous detection, leads to important data for modeling of waste treatment processes. One method that allows the detection and identification of particles is to mark the latter with RFID-tags and record their path of exit. First test results with a trommel screen could not only prove the success of this method but also show the quantitative influence of process parameters, e. g. the revolution speed, on the temporal output. The aim of the paper is to show how the method works, how this contributes to waste process modeling and why the knowledge of process parameter influences on the temporal output is important...
... Risk assessment of coccidiostats after cross-contamination of feed: Implications for animal a... more ... Risk assessment of coccidiostats after cross-contamination of feed: Implications for animal and human health. by U Bertelsen, JLCM Dorne, ML Fernandez-Cruz, DW Renshaw, K Peltonen, … A Anadon, A Feil, P Sanders, PW Wester, J Fink-Gremmels show all authors. ...
Die in der Aufbereitung fester Abfallstoffe eingesetzten Technologien sind mit wenigen Ausnahmen ... more Die in der Aufbereitung fester Abfallstoffe eingesetzten Technologien sind mit wenigen Ausnahmen der mechanischen Verfahrenstechnik zuzuordnen. Aus dem Abfallgemisch werden durch Trennprozesse einzelne Stoffgruppen soweit angereichert, dass sie als Wertstoffkonzentrat fur Folgeprozesse verwendet werden konnen. Recyclingprozesse sind in der Regel mehrstufig aufgebaut, wobei die mechanische Aufbereitung sehr haufig die Eingangsstufe bildet. Gegenstand der Aufbereitungstechnik beim Wertstoffrecycling ist die Erzeugung von Zwischen- oder Endprodukten aus Abfallgemischen mittels physikalischer und/oder untergeordnet biologischer oder chemischer Prozesse. Alle Prozesse, auch Verfahren genannt, bestehen aus Kombinationen einzelner Prozessstufen, die auch als Grundoperationen bezeichnet werden. Im vorliegenden Lehrbuch werden die hierzu in der betrieblichen Praxis zum Einsatz kommenden Zerkleinerungs-, Klassier- sowie Sortieraggregate beschrieben und in Bezug gesetzt zu den stofflichen Eigenschaften von Abfallgemischen, da diese vielfach die Auswahl an Technik masgeblich beeinflussen.
This report gives a technological description of the four common collection and recycling schemes... more This report gives a technological description of the four common collection and recycling schemes that have been tested in the Netherlands as part of the pilot beverage cartons in 2013. During this pilot the collection and recycling of beverage cartons was tested in 37 different municipalities, with various separate collection systems and 2 recovery facilities.
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