Over recent years
the total quantity of waste in the world has been drastically reduced. However,
valuable materials are wasted and there are significant environment risks,
we still have economies quantities of waste and need solve.
Municipal
solid waste typically consists of the household waste fraction and light
commercial, industrial waste. This waste is generated mainly from residential
and commercial complexes. It should be mixture of different solid products
such as paper, plastic, metals, food residual, etc. The components of
the municipal solid waste, which collected from modern cities, are various.
Various kinds of waste will increase the difficult degree and cost of
disposal.
How to use efficient method to separate for recycling is the important
factor about disposal this kind of waste, our process provides the suitable
process to solute the problem through mechanical separation for recycling.
Mechanical
separation for recycling
The mechanical separation of waste is the pre-treatment
of biological treatment, the municipal solid waste has to be carefully
screened in the beginning in order to leave possibly harmful materials
like batteries undamaged and to avoided toxic leakage. The key advantage
is the simple and effective separation of the waste into valuable components
and fuel.
Through
the two consecutive drum sieves, there are some kinds of different fractions
could be recycling, magnets can be used to recover ferrous metals, while
non-ferrous metals are recovered by Eddy current separator. Besides, air-classifiers
can be used to obtain light components such as paper and plastic. The
coarse fractions can be handpicked for recyclables giving an additional
benefit, and it also can let the composting process running smoothly to
product ready-to-sale compost.
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