ch21_0495556718_164059

ch21_0495556718_164059 - to explode or release toxic fumes....

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 21 Solid and Hazardous Waste Summary 1. Solid waste is any unwanted or discarded material that is not a liquid or a gas. Thirty-three percent of the world’s solid wasted is produced by one country—the United States—which represents 4.6% of the world’s population. 2. Waste management, waste reduction, reduced usage, and pollution prevention can all be used to reduce, reuse, or recycle solid waste. 3. The advantages of burning waste include reducing trash volume, minimizing the need for landfills, and lowering water pollution. The disadvantages include high cost, air pollution, producing toxic ash, and encouraging waste production. The advantages of burying wastes include safety, wastes can be retrieved, ease of application, and low cost. Disadvantages include leaks and spills, existing fractures or earthquakes can cause waste escape, and encouraging waste production. 4. Hazardous waste is any discarded solid or liquid material that is toxic, ignitable, corrosive, or reactive enough
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: to explode or release toxic fumes. We can use a pollution prevention or waste reduction approach to reduce production and manage existing hazardous waste mostly by burning or burying it. 5. Physical methods such as filtering and distilling, chemical reactions, bioremediation, phytoremediation, and plasma torches can all be used to detoxify hazardous waste. 6. Advantages of burning hazardous waste include reducting waste volume, minimizing the need for storage space, and lowering water pollution. The disadvantages include air pollutants such as toxic dioxins and production of toxic ash that must be stored. Advantages of burying hazardous waste include safety, wastes can be retrieved, ease of application, and low cost. Disadvantages include leaks and spills, existing fractures or earthquakes can cause waste escape, and encouraging waste production. 7. The United States regulates hazardous waste through the 1976 Resource Conservation and Recovery Act, which was amended in 1984....
View Full Document

This note was uploaded on 07/26/2009 for the course BIO 1100 taught by Professor Na during the Spring '09 term at Concordia AB.

Ask a homework question - tutors are online