This method in comparison
with other known methods is notable for simple technology, high
degree of cleaning (99-100%) and cost-efficiency.
In the proposed technology we use the sorbent that
is the product of thermo-electric power station smoke wastes.
This wastes are forming by shale burning. This sorbent being the
waste of other technology is very accessible, and cost-effective.
It has finally divided condition with the garnule size of 70 mkm,
point of toughness - 3,6 - 4, could be easily unloaded from different
reservoirs and also could easily be dosed by pneumatic disperser
or pneumatic dose apparatus, what makes application of the sorbent
This sorbent has high sorption capacity (0.8 tons
of SOx per 1 ton of sorbent) and has active alkaline neutralizing
ability owing to content of alkaline metals such as calcium, potassium,
magnesium and sodium. Besides that, the sorbent shows properties
of coagulant, flocculant, sorbent, chemical reagent (owing to
presence of oxides of wide ring of elements in the sorbent, including
silicon, aluminum, iron, titanium and manganese) and catalyst
of organic substance oxidation. Besides above mentioned combinations
the sorbent contains much microelements, which could show themselves
as catalysts of different reactions, that take place during the
All mentioned above allows by using proposed sorbent
to provide not only high degree of cleaning (up to 100%), but
also by application of the know-how to influence on structural
processes and get as the result of cleaning solid residuum. The
properties of this residuum are similar to portlant-cement. It
could be used in road building, etc.
So, the proposed method provides comprehensive solution
of the ecological problem - we use the wastes of another production
that pollute area around thermo-electric power stations, which
work on shale. It is a big ecological problem, because microelements
that contain in shale ash after washed away are changing to active
form. But the active form of microelements is a source of many
terrible deceases for people, that live in the area of thermo-electric
After smoke emissions cleaning from sulphur and
nitrogen oxides and receiving solid residuum we have ecological
clean building material. The technology is approbated in course
of semi-industrial tests on PO "Fosforit", Maardu, Estonia.
The method is secured by international patent.