Journal of Environmental Science and Water Resources                                     ISSN 2277 0704

Vol. 5(2), pp. 024 - 031, March 2016                                                            2016 Wudpecker Journals

 

Emissions of gases through various types of materials used as cover layers of an experimental chamber filled with municipal solid wastes

 

Lorena Soares Monteiro*1, Francisco Suetônio Bastos Mota2, Wildson Max Barbosa da Silva3, David Araujo Borges4

 

1Master in Fishery Engineering, Doctoral candidate in Civil Engineering, Federal University of Ceará, Brazil.
2Sanitary and Civil Engineer, Doctorate in Environmental Studies, Professor in the Department of Hydraulic and Environmental Engineering at the Federal University of Ceará, Brazil.
3Licensed chemist, Master in Chemistry from the Federal University of Ceará, Brazil.
4Doctorate in Tropical Marine Sciences, Professor of the Department of Aquaculture at the Federal University of Rio Grande do Norte, Brazil.

 

*Corresponding author E-mail: lorenasmonteiro@gmail.com. Phone: (55) 85-98812-3555.

 

Accepted 25 February 2016

 

Abstract

 

The biogas generated in urban sanitary landfills can be harmful to the atmosphere when lost through the cover layer, contributing to the greenhouse effect. The present study aimed to evaluate the performance of different materials in the reduction of gas emissions to the atmosphere when used as cover layers in a sanitary landfill. The cover with the Emerald grass obtained the best result among the covers tested, showing the lowest average rate of methane emission at 0.7% compared to 0.8% emitted through the conventional layer. The Emerald grass, however, had an average emission of 1.0% of carbon dioxide gas, which was 150.0% higher than the 0.4% from the conventional layer. The civil construction waste and coconut fiber had an average escape of methane at 0.8% each, yet both were above the average value of the carbon dioxide gas liberated by the conventional layer. The worst result was for the grained pruning residues with an average value of 2.8% methane and 10.5% carbon dioxide. In conclusion, the cover layers vegetated with the Emerald grass contributes to the reduction of greenhouse gas emissions, optimize the use of biogas in the production of energy, and promote environmental rehabilitation of the sanitary landfill.

 

Key words: Landfill, cover layers, gas emissions.

 

 

  Cite this Reference:
 

Lorena Soares Monteiro, Francisco Suetônio Bastos Mota, Wildson Max Barbosa da Silva, David Araujo Borges (2016). Emissions of gases through various types of materials used as cover layers of an experimental chamber filled with municipal solid wastes).  J. Environ. Sci. Water Resourc. 5(2): 024-031.