WASTE!



Waste

Various methods for waste disposals. look below!

- can build afterwards ||= - needs time to settle - methane is released - local residents may object new sites || - unsightly - health hazards || - pollutes the sea || - produces odorless waste ||= - expensive to build and operate - requires lot's of energy - could produce DIOXINS if not burnt properly || - different in separation ||
 * =  Methods of waste disposal ||= (+) ||= (-) ||
 * = Landfill ||= - easy to deal with large volume
 * = Open Dumping ||= - convenient and cheap ||= - causes air, ground and water pollution
 * = Ocean Dumping ||= - source of nutrients, cheap and convenient ||= - danger to marine animals
 * = Incineration ||= - reduces volume
 * = Recycling ||= - provides sustainability ||= - expensive

Recycling of Metals, Paper, Glass and Plastics





Types of  **NUCLEAR WASTE.** - hospitals - labs - power stations  __these are classified into two groups...__

LOW LEVEL WASTE & HIGH LEVEL WASTE



Storage and disposal methods for LOW LEVEL WASTE and HIGH LEVEL WASTE

Low level waste : These are usually stored in cooled water as it gives off heat where it loses its activity. This is then filtered with an ion exchange resin to remove STRONTIUM and CAESIUM. These are the two main elements that are responsible for radioactivity. Waste can be kept in steel and concrete containers.

High level waste : The liquid is dried in a furnace and is mixed with glass. This helps to solidifies the liquid in steel tubes and which air is able to flow around the tubes to keep it cool. Because of the high activity and long half-lives some of the waste will remain active for hundreds or even thousands of years. Problems may include the storage and the possibility of leakage into water supplies.