14. Conversion of waste organic matters to reusable
material (sugar or fuel).
15. Retrieval of useful substances from waste plastics.
Features of Environmental Purification by Radiation
1.
No secondary pollutants. Since radiated pollutants
are directly oxidized to become harmless substances
or polymerized to become useful chemicals, there is
no highly concentrated harmful solid sludge produced
in the process.
2. Thorough disinfection.
3.
Ionic rays, with its strong
penetrability, can kill pathogens and eggs of parasites
hidden in solid particles or sludge.
Simple technology and short process. Radiation purification
is a very simple technology mainly involving the radiation
source, inlets and outlets of the treatment medium
(such as water or gas) and the necessary storage
equipment.
4. Energy conservation.
More energy, approximately 70%
or more, can be conserved when compared with conventional
methods.
5. Conversion of wastes into resources.
For example,
radiated waste gases from industrial flues can form
compound fertilizers of ammonium nitrate and ammonium
sulphide upon ammoniation. Unsaturated organic matters
in waste water can be radiated to form polymers which
serve as concrete and timber additives. Radiated
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