4
lignin in paper mill waste water can be polymerized
and then processed to give high quality water treatment
coagulator. Besides, ordinary domestic sludge disinfected by
radiation becomes more fertile, yielding about 20% more
in crops (e.g. maize).
6.
The use of wastes in waste treatment. The radiation
source of caesium -137 commonly used in radiation
treatment is itself a kind of radioactive waste. If
this waste is extracted for use as radiation source,
the disposal of nuclear wastes and the objective of
environmental purification can be achieved at the same
time.