Disposal of Solid Wastes Quiz
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Questions and Answers

What is a key advantage of landfilling as a method of solid waste disposal?

  • Suitable for organic waste
  • Reduces volume
  • Environmentally friendly
  • Cost-effective (correct)
  • Which method of solid waste disposal involves burning waste at high temperatures?

  • Landfilling
  • Incineration (correct)
  • Recycling
  • Composting
  • What is a major disadvantage of incineration as a method of solid waste disposal?

  • Air pollution due to emissions (correct)
  • Energy recovery
  • Reduces volume
  • Produces useful compost
  • Which type of waste is most suited for composting as a disposal method?

    <p>Organic waste</p> Signup and view all the answers

    What is a common concern associated with landfilling as a waste disposal method?

    <p>Generation of methane gas</p> Signup and view all the answers

    Which method of solid waste disposal involves the decomposition of organic waste by microorganisms?

    <p>Composting</p> Signup and view all the answers

    Why is it important to establish buffer zones around incinerators?

    <p>To minimize the impact on surrounding communities</p> Signup and view all the answers

    What is the purpose of an incineration chamber in an incinerator plant layout?

    <p>To control emissions</p> Signup and view all the answers

    Why is involving local communities in the decision-making process crucial when designing an incinerator?

    <p>To address concerns and ensure acceptance</p> Signup and view all the answers

    What is the goal of a sanitary landfill?

    <p>To reduce environmental and public health risks</p> Signup and view all the answers

    What is the function of leachate collection in a sanitary landfill?

    <p>To treat liquid formed by water percolating through waste</p> Signup and view all the answers

    Why is proper engineering crucial in the operation of sanitary landfills?

    <p>To minimize risk of pollution and manage waste effectively</p> Signup and view all the answers

    What is the purpose of gas collection systems in sanitary landfills?

    <p>To capture gases for flaring or utilization</p> Signup and view all the answers

    Why is covering each layer of a landfill important in its operation?

    <p>To minimize risks of odor and pest concerns, along with reducing litter potential</p> Signup and view all the answers

    What is the purpose of buffer zones around an incinerator?

    <p>Minimize contact with sensitive ecosystems</p> Signup and view all the answers

    What role does the Administration and Control Room play in an incinerator plant layout?

    <p>Monitoring and managing incinerator operations</p> Signup and view all the answers

    What is the main advantage of waste-to-energy (WTE) technology?

    <p>Generates energy from burning waste</p> Signup and view all the answers

    What is a disadvantage of pyrolysis and gasification technologies?

    <p>Potential for emissions</p> Signup and view all the answers

    What is a crucial feature of the primary combustion chamber in an incinerator?

    <p>Operates at high temperatures for efficient combustion</p> Signup and view all the answers

    What is the purpose of the secondary combustion chamber in an incinerator?

    <p>To burn remaining particulate matter and gases</p> Signup and view all the answers

    Why is proper air supply crucial in incinerators?

    <p>To minimize the release of pollutants</p> Signup and view all the answers

    Which technology breaks down organic materials into gases, liquids, and char in the absence of oxygen?

    <p>Pyrolysis and Gasification</p> Signup and view all the answers

    What is a disadvantage of hazardous waste disposal methods?

    <p>High initial cost</p> Signup and view all the answers

    What do incinerators use to comply with environmental regulations and control emissions?

    <p>Scrubbers and filters</p> Signup and view all the answers

    What is the primary goal of sustainable waste management practices?

    <p>Minimize impact on ecosystems and human health</p> Signup and view all the answers

    What is a major advantage of recycling materials such as paper, glass, plastics, and metals?

    <p>Conserves resources</p> Signup and view all the answers

    What is the primary purpose of designing landfills for compaction and layering?

    <p>To maximize space utilization</p> Signup and view all the answers

    Which factor influences gas movement in a landfill?

    <p>Moisture content</p> Signup and view all the answers

    What is the main reason for conducting environmental impact assessments for landfill sites?

    <p>To assess potential environmental impacts</p> Signup and view all the answers

    What are the primary components of landfill gas?

    <p>Methane and carbon dioxide</p> Signup and view all the answers

    Why is proper site selection considered crucial for landfill operations?

    <p>To minimize environmental and public health risks</p> Signup and view all the answers

    What drives the movement of leachate through waste layers in a landfill?

    <p>Gravity and waste moisture content</p> Signup and view all the answers

    Which factor contributes to the limited capacity of landfills?

    <p>Finite capacities despite compaction</p> Signup and view all the answers

    What is a significant disadvantage associated with sanitary landfills?

    <p>Potential impacts on property values</p> Signup and view all the answers

    What is the purpose of landfill compactors?

    <p>Reduce the volume of waste and increase its density</p> Signup and view all the answers

    Which equipment is used for waste placement and daily cover placement in landfills?

    <p>Bulldozers/Excavators</p> Signup and view all the answers

    What is the primary function of landfill liners?

    <p>Prevent leachate migration</p> Signup and view all the answers

    How is captured landfill gas typically utilized for energy generation?

    <p>Utilization in engines or turbines</p> Signup and view all the answers

    What is the key reason for implementing effective landfill gas and leachate management systems?

    <p>To minimize environmental impacts and harness resources</p> Signup and view all the answers

    How do regulations influence the design and operation of landfills?

    <p>They vary by region and influence landfill design and operation</p> Signup and view all the answers

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