Mechanochemical Activation of Ashes of Sludge Precipitates — the Effective Method of Solving the Geoenvironmental Problem of Resource Saving

Abstract

The method of mechanochemical activation of the cindery remains from burning of a fir-tree precipitation of stations of aeration for receiving the final product with
the improved characteristics is approved. Researches on processing of an inorganic component of a precipitation of the Central station of aeration of St.
Petersburg for receiving construction materials by a usual method and a method of mechanochemical activation are executed. It is shown that the method of
mechanochemical activation promotes improvement of strength characteristics of the received samples of materials for 15% in comparison with similar roasting
samples. The offered technology is recommended for development of system of resource-saving and reduction of the production wastes which are subject to utilization.
It is proved that use of the evils of a fir-tree precipitation in production of construction and ceramic construction materials with high-strength characteristics
(a cement stone, expanded clay, asphalt concrete, a brick, wall stones, etc.) is effective way of preservation of harmful elements from environment without
possibility of their leaching.