Given the European context on end-of-waste criteria on biodegradable waste subject to biological treatment, but also the national context on fertilization & renewable energy production from biogas, the purpose of this paper is to address current and future management options developed in France, a major agricultural country, for urban sewage sludge, mixed and sorted municipal solid waste, agro-industrial wastes and farm residues.
Copyright: | © European Compost Network ECN e.V. | |
Quelle: | Orbit 2012 (Juni 2012) | |
Seiten: | 0 | |
Preis inkl. MwSt.: | € 0,00 | |
Autor: | Emmanuel Adler Nicolas Fruteau | |
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Synergien durch Anlagenkombinationen auf Biogasanlagen
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (11/2018)
Getrennt gesammelte Bioabfälle sind ein wertvoller Sekundärrohstoff
und sollten möglichst energetisch als auch stofflich verwertet werden. Fehlwürfe bei der Sammlung bedingen sowohl eine aufwändige als auch kostenintensive Abfallaufbereitung in Hinblick auf Investitions- und Instandhaltungskosten vor der Vergärung bzw. nach der Kompostierung.
Umsetzung der Umstellung einer Kompostieranlage aus (Vorschalt-) Vergärung
© Institut für Abfall- und Kreislaufwirtschaft - TU Dresden (9/2015)
Bereits seit Jahrhunderten werden für die Abfallwirtschaft vielfältige Technologien und Strategien entwickelt und zunehmend auch kommerziell umgesetzt, um die organischen Abfallfraktionen sowohl umweltverträglich als auch ökonomisch sinnvoll zu behandeln und möglichst auch zu verwerten.
Development of indicators to evaluate manure processing technologies. Anaerobic digestion and composting of cow manure plant as case study
© European Compost Network ECN e.V. (6/2014)
Intensive livestock production has experienced a rapid growth in the last few decades, especially concentrating in certain geographical areas. The improper management of livestock manure causes severe environmental impacts related to eutrophication, acidification, release of greenhouse gases, pollution due to toxic chemicals (heavy metals, antibiotics, hormones, etc.), among others. Nevertheless, in the current framework of resources and energy scarcity, organic wastes arise as an attractive resource that, if processed properly, can reduce the environment impacts associates to their management.
Preliminary evaluation of nutrient indices to estimate compost maturity
© European Compost Network ECN e.V. (6/2014)
One of the key compost maturity indicators is the C/N ratio. However, other ratios could be also used to estimate compost maturity and discriminate among compost types. Several nutritional indices are available within the plant nutrition literature. The most well-known is the Diagnosis and Recommendation Integrated System (DRIS) developed by Beaufils (1973). The DRIS involves the analysis of the results of plant analysis of a large number of samples of a specific crop. Samples coming from high yielding populations are considered as standards over which ratios of nutrient concentrations are developed and their coefficients of variation (CV) recorded. For a given sample, nutrient ratios are calculated and combined with those of the standard to determine DRIS Indices.
Greenhouse gases from composting and anaerobic digestion of biowaste in Germany
© European Compost Network ECN e.V. (6/2014)
Greenhouse gas (GHG) emissions from 12 to 120 kg CO2äq/Mg from composting and anaerobic digestion of biowaste are important for environmental impacts and results in Life Cycle Assessment (LCA). Poor operation can cause even higher emissions up to 400 kg CO2äq/Mg. The amount of CH4 and primary N2O differ in a range of factor 10 between different plants and is a result of variation in substrate (feedstock) and basic process parameters like: porosity, density, temperature, moisture, C:N ratio, O2 and pH-value.