Potential for reducing global methane emissions from landfills, 2000-2030© IWWG International Waste Working Group (10/2007)
Global generation of municipal solid waste (MSW) is now ~1200 Tg/yr (1 Tg = 1012 g), >70% of which is landfilled. Landfilling of waste contributes ~30-35 Tg methane (CH4 )annually to the world's total CH4 emission of ~550 Tg/yr. Recycling and thermal treatment of waste in waste-to-energy (WtE) facilities contribute equally to diverting MSW from the waste stream destined for landfills and to mitigating CH4 emission
Impact evaluation of landfills on air quality: odours and toxic compounds© IWWG International Waste Working Group (10/2007)
Emissions from municipal solid waste landfills (MSWL) have the potential to cause olfactive annoyance and health impacts among the surrounding populations. The objective of this study was to examine the impacts on the air quality of MSWL in Quebec in terms of odours and potentially toxics compounds related to biogas emissions.
STUDY OF THE METHANE OXIDATION ON A COVERING LAYER© IWWG International Waste Working Group (10/2007)
Methane gas (CH4) is generated by a variety of anthropogenic and natural sources, and it is considered one of the gases that most contribute to the global climate change. Its power to retain heat is 23 times higher than that of carbon dioxide (Prentice, 2001), and its time in the atmosphere extends to approximately 12 years (IPCC, 2006). According to IPCC (2006), it is estimated that almost half of the global emissions of CH4 are related to anthropogenic activities, and that 20% of all CH4 released comes from the treatment and disposal of residues and leachate. Among the anthropogenic activities that release significant amounts of CH4 into the atmosphere, we can mention residue landfills, petrol and natural gas exploitation systems, agricultural activities, coal mining, livestock raising (enteric fermentation), and biomass burn. Natural sources that release CH4 include swamps, glaciers, and oceans.
A NEW ODOUR SPECIFIC DATABASE AND ITS CENTRAL ROLE IN ODOUR CONTROL MANAGEMENT© IWWG International Waste Working Group (10/2007)
Odorous emissions are among the most frequent environmental pollution incidents reported to regulatory authorities. These complaints originate as a result of a wide variety of industries and operations including agriculture, livestock farming, food processing, rendering plants, chemical manufacturers, wastewater treatment, and landfills. Odorous emissions may strongly affect residents’ quality of life. The reactions can vary from emotional stresses to physical symptoms like headaches, respiratory problems, or nausea. Reasons for increasing odour-related problems are the expanding residential development near traditionally agricultural and industrial areas and an increase in sensitivity and demand of the general public for a clean and pleasant environment.
LOW-COST-COVERING OF SLUDGELAGOONS AND LIQUID DEPOSITS FOR NEW INDUSTRIALIZING COUNTRIES© IWWG International Waste Working Group (10/2007)
The opencast lignite mine Grube Johannes located at the southern edge of the city of Wolfen is being used as a landfill and settling pit by the local industry, above all by the photochemical combination Wolfen (later film factory Wolfen) since about 1920. It became the international symbol for a threatening chemical pollution in the Bitterfeld area and the object of numerous press revues under the name "Silbersee" ("Die Leute werden dun im Kopf" – “The people are becoming dull in the head”; Spiegel, 8. Januar 1990)