Waste disposal and landfill: Potential hazards and their impact on groundwaterAuthor(s):
Dr. Osama Asanousi LammaAbstract:
The waste management should be aware of the complexity of the potential of CO2
and methane gas present in the soil and further works must be processed on the assumed landfill gas presence. Moreover, there are other landfill gas properties to be noted. Methane is colorless, odorless landfill gas, typically related to various largely odoriferous compounds that provides a certain warning showing its presence. Yet, lack of odor does not mean that it is deprived of methane, because, the level of Methane can be reliably assessed only by properly calibrating using the methane detector.
Methane and Carbon dioxide are flammable gases and they can burn when mixed with about 12.5% of v/v air. If the Methane or Carbon dioxide is mixed with air in this composition in a confined space, the ensuing combustion can create an explosion, while Methane is supposed to be an Asphyxiating gas. There are other asphyxiating gases in the landfill that can cause adverse health hazards at somewhat low concentration levels. The long-lasting OEL- Occupational Exposure Limit remains at 0.65% (v/v). Their presence can be confirmed only by appropriately measuring with calibrated detectors.
Also, it is understood that carbon dioxide gas is heavier than air and Methane gas is lighter, but in all the practical applications, the density of methane and CO2 is taken as equal to air. However, in landfill site situations, the ratio mixture methane and CO2 make them heavier or lighter than air. Hence, the landfill gas can accumulate on top or in the base of voids and in the confined spaces, to create problems later.
Due to this, the survey highlights the need for immediate relocation of the dumpsites to a safe and sufficient distance from every human town, village, and community settlements, and also provide environmental and resettlement education programs for all those people living in the surrounding areas almost fifty meters from the dumpsite as intervening measures. Rendering the precise scientific and substantiating evidence in an effective and realistic manner can undisputedly provide a clear potential to decrease air pollution, which no longer develops an expensive and damaging levy on public security and health. Pages: 133-141 | Views: 206 | Downloads: 11Download Full Article: Click Here
How to cite this article:
Dr. Osama Asanousi Lamma. Waste disposal and landfill: Potential hazards and their impact on groundwater. Int J Geogr Geol Environ 2021;3(2):133-141.