There a number of different waste treatment technologies for the disposal, recycling, storage, or energy recovery from different waste types. Each type has its own associated methods of waste management.
[edit] Landfill
Municipal solid waste consists mainly of household and commercial waste which is disposed of by or on behalf of a local authority. Landfills waste are categorized by either being hazardous, non-hazardous or inert waste. In order for a landfill design to be considered it must abide by the following requirements: final landforms profile, site capacity, settlement , waste density, materials requirements and drainage.
[edit] Incineration
The advantages of incineration are reduction of volume and mass by burning, reduction to a percentage of sterile ash, source of energy, increase of income by selling bottom ash, and is also environmentally acceptable.
The disadvantages of incineration are the following[1] :
- higher cost and longer pay back period due to high capital investment
- since incineration is design on the basis of a certain calorific value removing paper and plastics for recycling lowers the overall calorific value that may affect the incinerator performance[2]
- the process still produces a solid waste residue at the end which still requires treatment and management[3]
Emissions from Incinerators consists of particulates , heavy metals, pollutant gases, odor dust and litter. Do to incomplete combustion products such as dioxins and furans are formed.
[edit] References
- ^ Williams, Paul (2005). Waste Treatment and Disposal. Chichester, UK: John Wiley & Sons Ltd. ISBN 9780470849125.
- ^ Williams, Paul (2005). Waste Treatment and Disposal. Chichester, UK: John Wiley & Sons Ltd. ISBN 9780470849125.
- ^ Williams, Paul (2005). Waste Treatment and Disposal. Chichester, UK: John Wiley & Sons Ltd. ISBN 9780470849125.
[edit] See also
