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b) Discuss about environmental factors in sanitary landfill sites.

Question

b) Discuss about environmental factors in sanitary landfill sites.

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Solution

Environmental factors in sanitary landfill sites refer to the various elements of the environment that can be affected by the presence and operation of a landfill. These factors include air quality, water quality, soil quality, and the overall ecosystem.

  1. Air Quality: Landfills can release various gases, such as methane and carbon dioxide, which are produced by the decomposition of organic waste. These gases contribute to air pollution and can have negative effects on human health and the environment. Additionally, the release of volatile organic compounds (VOCs) from the decomposition process can also impact air quality.

  2. Water Quality: Landfills have the potential to contaminate groundwater and surface water through the leachate that is generated. Leachate is a liquid that forms as water percolates through the waste, picking up various pollutants along the way. If not properly managed, leachate can seep into nearby water bodies, leading to water pollution and potential harm to aquatic life and human health.

  3. Soil Quality: The presence of a landfill can have adverse effects on soil quality. The waste materials in the landfill can release harmful substances into the soil, affecting its fertility and composition. This can impact the growth of plants and vegetation in the surrounding area, disrupting the natural ecosystem.

  4. Ecosystem: Landfills can disrupt the natural balance of ecosystems in several ways. The presence of a landfill can lead to the loss of habitat for various plant and animal species. Additionally, the release of pollutants into the air, water, and soil can harm the biodiversity of the area, affecting the overall health and functioning of the ecosystem.

To mitigate the environmental impact of sanitary landfill sites, several measures can be taken:

  • Proper waste management practices, such as waste segregation and recycling, can help reduce the amount of waste that ends up in landfills.
  • Implementing effective landfill design and engineering techniques, such as liners and leachate collection systems, can help minimize the release of pollutants into the environment.
  • Regular monitoring and testing of air, water, and soil quality can help identify and address any potential environmental issues.
  • Implementing proper waste disposal and treatment methods, such as landfill gas capture systems and leachate treatment facilities, can help minimize the release of harmful substances into the environment.

Overall, it is crucial to consider and address the environmental factors associated with sanitary landfill sites to ensure the protection and preservation of the environment and human health.

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This PPT should be used as reference only. Reading books (mentionedin syllabus) is mandatory for the preparation of the examinations.Disposal of solid waste Sanitary landfill Garbage is spread out in thin layers, compacted and covered with clay/plasticfoam Bottom is covered with impermeable linings to prevent the percolation ofleachates. When the landfill is full, it is covered with clay, sand and gravels Monitoring wells are drilled near the landfill area Landfill gas (Methane) is produced. Composting It is done due to the shortage of landfill area Decomposed in oxygen-rich medium Nutrient rich manure is produced Incineration Burning of waste in very high temperature Initial cost is very high Dioxin, furan, lead, cadmium etc. can be released. So, battery or plastics should be removedbefore burning12/03/19This PPT should be used as reference only. Reading books (mentionedin syllabus) is mandatory for the preparation of the examinations.Noise Pollution Noise: Unpleasant/ unwanted sound Noise pollution: The noise propagates through the atmosphere thatleads to discomfort and health hazards is known as noise pollution. Noise measurement is expressed as Sound Pressure Level (SPL) SPL is a logarithmic ration of sound pressure to a referencepressure. International reference pressure is 2 X 10 -5 Pa. (average thresholdof hearing) Unit of SPL is decibel. Threshold of pain is 130 dB Types of noise: Continuous, Intermittent, Impact/Impulsive12/03/19

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