Methane generation in tropical landfills: simplified methods and field results.
This paper deals with the use of simplified methods to predict methane generation in tropical landfills. Methane recovery data obtained on site as part of a research program being carried out at the Metropolitan Landfill, Salvador, Brazil, is analyzed and used to obtain field methane generation over time. Laboratory data from MSW samples of different ages are presented and discussed; and simplified procedures to estimate the methane generation potential, Lo, and the constant related to the biodegradation rate, k are applied. The first order decay method is used to fit field and laboratory results. It is demonstrated that despite the assumptions and the simplicity of the adopted laboratory procedures, the values Lo and k obtained are very close to those measured in the field, thus making this kind of analysis very attractive for first approach purposes.
Machado
Sandro L
SL
Department of Materials Science and Technology, Federal University of Bahia, 02 Aristides Novis Street, Salvador-BA 40210-630, Brazil. smachado@ufba.br
Carvalho
Miriam F
MF
Gourc
Jean-Pierre
JP
Vilar
Orencio M
OM
do Nascimento
Julio C F
JC
D000393:Air Pollutants / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods*; D005557:Formaldehyde / Q000737:chemistry*; D012037:Refuse Disposal / Q000379:methods*; D014329:Tropical Climate
D000393:Air Pollutants; D005557:Formaldehyde