By Malgorzata Pawlowska
Landfilling has been and nonetheless continues to be a massive technique of municipal sturdy waste administration however it poses a possibility to the purity of our environment, in particular air. within the coming years, an intensive decline within the proportion of landfilling in waste disposal practices shouldn't be anticipated. even if, this isn't to claim that folks are powerless within the face of the emission of damaging gases into the ambience, the unfold of bioaerosols and odors. there are various methods of forestalling the unfavorable impression of landfills or conserving the surroundings opposed to such an influence.
Some of those preventive and protecting measures are defined in Mitigation of Landfill fuel Emissions. particular consciousness is given to the appliance of anaerobic, cardio and semi-aerobic bioreactor landfills for keep watch over of landfill gasoline emission. types of biotic platforms for the oxidation of methane and hint gases, corresponding to biocovers, biofilters, and biowindows, also are presented.
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When the concentration of CH4 decreases to a value in the range 20–25%, and the production drop to 10–15 m3 h−1, gas may be combusted in high temperature flare. Below the mentioned values, the utilization of biogas may be carried out by its combustion with the auxiliary gas, by catalytic combustion, preferably by using Pd-based catalysts (Smith et al. 2006) or non-catalytic oxidation in high temperatures (Stachowitz, 2001). However, these methods are expensive. Biotechnological methods, which are based on the microbiological oxidation of contaminants (methane and trace constituents of biogas) during the gas flow through the filter bed, are much cheaper and easier to use.
321 m3 CH4 kg VS−1 (semi-continuous test) Reference Braun et al. (2003) Rao et al. (2000) Scaglia et al. (2010) Schievano et al. (2009) Zhu et al. (2009) Barlaz et al. (1997) Mata-Alvarez et al. (1992) Hartmann & Ahrig, (2005) Chynoweth et al. (1992) Bolzonella et al. (2003) QamaruzZaman & Milke (2010) 26 Małgorzata Pawłowska feasible and economically justified to use gas as a source of heat or electricity (Haubrichs & Widmann, 2006). From the point of view of sustainable development, it is the most beneficial option of LFG utilization because at the same time the “green” energy from alternative sources is obtained and the emission of methane and other pollutants into the atmosphere is prevented.
2006. pl/uploadfiles/raport_metody_badan_skladu. ). M. 1983. The application of enzyme activity measurements to a study of factors affecting protein, starch and cellulose fermentation in domestic refuse. Eur. J. Appl. Microbiol. Biotechnol. 18: 181–185. J. Biogas – green energy. Process, Design, Energy supply, Environment, Faculty of Agricultural Sciences, Aarhus University 2009, 2nd edition. , Skorek, J. 2002. Paliwa gazowe dla układów kogeneracyjnych, Seminarium cykliczne Energetyka w procesie przemian Gliwice 2002.