The use of aerial images for 3D-geospatial information extraction is a known and precise technology. This technology, called photogrammetry, finds application also in Monitoring tasks of landfill sites. One obtains 3D-geospatial information such as volumes, terrain models, profiles, or contours all of which describe the area in a particular way, either for planning or for documentation purposes. Typically, one associates the capturing of aerial images with use of manned aircraft equipped with large format – nowadays digital – aerial camera systems. As aircrafts serve either fixed wing airplanes or Rotary wing aircrafts.
3D-geospatial information is in many areas a fundamental, operational infrastructure. It serves planning, visualization, documentation and communication of operational processes and is in daily use. Large scale changes of site as well as local changes of volumes are important and constantly to-be-updated spatial data sets. For the Generation of digital surface models in combination with volume determination and change of volume monitoring one lately uses unmanned airborne vehicles (UAV) equipped with cameras. Miniaturization, new materials and technologies permitted construction and use of UAVs for geospatial monitoring tasks. This paper presents several examples of UAV applications for spatial monitoring tasks of landfill sites. The UAVs in use are of less than 5 kg total weight, yet very powerful. The technology behind delivers millions of highly accurate digital surface 3D-points, which thus describe in high detail the existing surface and to a very high degree of realism the actual volume present in the landfill site. Further, this paper gives an overview on this technology and a number of real world application examples.
|Copyright:||© Wasteconsult international|
|Source:||Waste-to-Resources 2015 (Mai 2015)|
|Autor:||Dr.-Ing. Werner Mayr |
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Aerobe Stabilisierung von Deponien – Technische Lösungen und erste Ergebnisse geförderter Projekte in Deutschland
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2016)
Das Umweltbundesamt schätzt, dass im Jahr 2015 – und damit 10 Jahre nach Ende der Ablagerung von Organik auf Deponien in Deutschland – immer noch über 500.000 Tonnen Methan in deutschen Deponien entstanden sind, die erfasst und behandelt werden müssen.
Comparison of MBT plants with and without upstream Anaerobic Digestion (AD) in terms of moisture Management and achievement of landfill disposal criteria
© Wasteconsult international (6/2015)
In waste industry the trend has developed to treat municipal solid waste (MSW) within an anaerobic digestion process. For this purpose MBT plants with an upstream AD plant were built. In the context of plant monitoring and trials one MBT with AD and one MBT without AD were examined and compared to determine the impact of the AD process. For this, the plant operation, especially the moisture management, the compliance of the landfill criteria and also the economic efficiency of the MBT were investigated.
Methanoxidation in der Deponieoberfläche
© Universität Stuttgart - ISWA (5/2015)
Anaerobe Bedingungen und das Vorhandensein von organischen Stoffen führen in allen Ablagerungen zur biogenen Bildung von Gas. Dies ist natürlicherweise auch in anthropogenen Ablagerungen, die mehr oder weniger zu Recht als Deponiebauwerk angesprochen werden der Fall.
Case study of an MBT producing SRF for cement kiln cocombustion, coupled with a bioreactor landfill for process residues
© Wasteconsult international (5/2015)
The research focuses on the performances of a traditional single stream MBT for SRF production suitable for co-combustion in a cement kiln. Bio-drying of the residual waste is followed by mechanical refining in order to fulfil the quality requirements by the cement kilns. The residues arising from the mechanical refining section are landfilled in a nearby bioreactor-landfill, where landfill gas is collected for electric energy recovery. A detailed mass balance of the system is presented, followed by a Life Cycle Assessment.
Landfill mining option: MBT role and landfill potential danger
© Wasteconsult international (5/2015)
The use of landfills for the disposal of municipal solid waste (MSW) has many technical and regulatory limits. An interesting solution is to recover the bales that have been previously stored in a landfill. After specific mechanical biological treatments (MBT), the contents of the bales can be used to produce a solid recovered fuel (SRF) that can be used for energy purposes. The possibility of producing SRF fuels from a landfill in northern Italy has been studied and is presented in this paper. The MSW extracted from the landfill, the bio-dried material produced by the waste hypothetically treated in a plant for bio-drying, and the SRF obtained after the extraction of inert materials, metals and glass from the bio-dried material have been characterized. Assessed the waste nature, the potential environmental impact of dioxin release from a possible landfill fire has been analysed, applying the Austal2000 model system.