Disposal of Solid Wastes Quiz

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?

Organic waste (B) Signup and view all the answers

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

Generation of methane gas (C) Signup and view all the answers

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

Composting (B) Signup and view all the answers

Why is it important to establish buffer zones around incinerators?

To minimize the impact on surrounding communities (B) Signup and view all the answers

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

To control emissions (D) Signup and view all the answers

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

To address concerns and ensure acceptance (A) Signup and view all the answers

What is the goal of a sanitary landfill?

To reduce environmental and public health risks (B) Signup and view all the answers

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

To treat liquid formed by water percolating through waste (B) Signup and view all the answers

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

To minimize risk of pollution and manage waste effectively (B) Signup and view all the answers

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

To capture gases for flaring or utilization (A) Signup and view all the answers

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

To minimize risks of odor and pest concerns, along with reducing litter potential (B) Signup and view all the answers

What is the purpose of buffer zones around an incinerator?

Minimize contact with sensitive ecosystems (D) Signup and view all the answers

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

Monitoring and managing incinerator operations (B) Signup and view all the answers

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

Generates energy from burning waste (B) Signup and view all the answers

What is a disadvantage of pyrolysis and gasification technologies?

Potential for emissions (D) Signup and view all the answers

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

Operates at high temperatures for efficient combustion (C) Signup and view all the answers

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

To burn remaining particulate matter and gases (A) Signup and view all the answers

Why is proper air supply crucial in incinerators?

To minimize the release of pollutants (A) Signup and view all the answers

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

Pyrolysis and Gasification (B) Signup and view all the answers

What is a disadvantage of hazardous waste disposal methods?

High initial cost (C) Signup and view all the answers

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

Scrubbers and filters (B) Signup and view all the answers

What is the primary goal of sustainable waste management practices?

Minimize impact on ecosystems and human health (B) Signup and view all the answers

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

Conserves resources (C) Signup and view all the answers

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

To maximize space utilization (D) Signup and view all the answers

Which factor influences gas movement in a landfill?

Moisture content (B) Signup and view all the answers

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

To assess potential environmental impacts (A) Signup and view all the answers

What are the primary components of landfill gas?

Methane and carbon dioxide (D) Signup and view all the answers

Why is proper site selection considered crucial for landfill operations?

To minimize environmental and public health risks (D) Signup and view all the answers

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

Gravity and waste moisture content (C) Signup and view all the answers

Which factor contributes to the limited capacity of landfills?

Finite capacities despite compaction (D) Signup and view all the answers

What is a significant disadvantage associated with sanitary landfills?

Potential impacts on property values (A) Signup and view all the answers

What is the purpose of landfill compactors?

Reduce the volume of waste and increase its density (B) Signup and view all the answers

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

Bulldozers/Excavators (A) Signup and view all the answers

What is the primary function of landfill liners?

Prevent leachate migration (D) Signup and view all the answers

How is captured landfill gas typically utilized for energy generation?

Utilization in engines or turbines (B) Signup and view all the answers

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

To minimize environmental impacts and harness resources (A) Signup and view all the answers

How do regulations influence the design and operation of landfills?

They vary by region and influence landfill design and operation (D) Signup and view all the answers