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The ideas of the book were also confirmed in the recent applied research: I. “In place” remediation of contaminated soils In place (“in situ”) remediation refers to the cleanup of contaminated soils without removing contaminated media from the subsurface, typically through the use of physical or/and chemical processes. Described in Chapter 12 the aqua-complex mechanism of clayey sediment reworking is of practical importance to implement this method. The solid evidence was recently obtained as a result of finding a method to rehabilitate the vast, previously industrial, area, intensely contaminated with As and chlorine-hydrocarbon radicals. The aqua-complex concept was applied to analyse the processes occurring in the soil contaminated with these toxic elements. It was shown that clayey matrix contaminated with the toxicants transforms according to reaction presented in 12.2.2 (Fig. 1).
Figure 1. Structural-chemical transformations in the clayey soil contaminated with the toxic elements As a result of this alteration, soil self-remediation occurs. The knowledge of the mechanism of these transformations allowed us to suggest a specific reagent to accelerate the process in order to reintroduce the contaminated area for industrial use. II. Utilization of the coal open-pit refuse rocks in the construction industry
During self-organization metamorphic coal-bearing mineral systems produce natural C-S (silicate calcium) minerals. This has been shown as a result of comprehensive research of mineral matter from the Kedrovsky coal open-pit mine (Kemerovo region, Russia). Utilization of these refuse rocks is very promising both in the production of building materials and in the construction process itself.
SEM
image of the retrograde metamorphism products over
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