Sorting Treatment Technology
Separation
of solid waste is the main way to reduce the amount of its resources. With the
help of separation treatment, some valuable substances in solid waste can be
sorted out and harmful solid waste can be isolated. It is also possible to
separate solid wastes of different particle size levels. The utilization
principle of the separation process takes full account of the material
difference between different solid wastes. For example, solid waste is sorted
according to magnetic and non-magnetic differences, solid waste is sorted
according to particle size differences, and solid waste is sorted according to
specific gravity differences. Solid waste sorting methods include manual
sorting, screening, gravity sorting, magnetic sorting, optical sorting and so
on.
Incineration Pyrolysis Technology
Incineration is to
decompose harmful fertilizer into harmless substances through deep oxidation
and high temperature decomposition of solid waste. Combined with the current
situation of solid waste generation, the proportion of combustibles in solid
waste is gradually increasing, so incineration and pyrolysis method has
gradually become the main way of solid waste treatment. Incineration method can
treat a large amount of solid waste at one time, using professional
incineration equipment for treatment, but the disadvantage is that it consumes
a lot of money, incineration equipment damage faster, and may cause air
pollution in the process of incineration. In addition, pyrolysis is also a
common technology for treating solid waste. This technology is to heat solid
waste at high temperatures in an oxygen-free or aanoxic
environment and pyrolysis it into gas, liquid or solid products. This treatment
technology is less costly than incineration.
