Lecture 13 Issues in Waste Disposal

Front

What are the key issues in waste disposal?

Back

Municipal capacities, Political commitment, Finance and cost recovery, Technical guidelines, Institutional role and responsibilities, Location.

Front

What are the disposal options mentioned?

Back

Uncontrolled dumping, Sanitary landfill, Composting, Incineration, Gasification, Refuse-Derived-Fuel, Pyrolysis.

Front

What is uncontrolled dumping?

Back

A method where wastes are dumped at a designated site without any environmental control, posing health risks and environmental degradation.

Front

What characterizes a sanitary landfill?

Back

A fully engineered disposal option where the location is carefully prepared to minimize leachate and gas production.

Front

What is composting in waste disposal?

Back

A biological process that converts organic matter into stable, odour-free soil conditioner, suitable when a considerable amount of biodegradable waste is available.

Front

What is incineration?

Back

Controlled burning of waste at high temperatures (1200 to 1500°C) that sterilizes and stabilizes waste, reducing volume.

Front

What is gasification?

Back

Partial combustion of carbonaceous material at high temperatures, forming a gas that can be used as fuel.

Front

What is refuse-derived fuel?

Back

Combustible parts of raw waste are separated for burning as fuel, using physical processes like screening and size reduction.

Front

What are the challenges of ensuring effective communication in waste management?

Back

Lack of communication can hinder community participation and support.

Front

What is the significance of assessing environmental impacts in waste disposal?

Back

It helps identify potential risks