Stabilization of the soil bases contaminated with peracetic acid

The solution of the urgent problem, which is connected with the substantiation and development of the method of fastening of soil bases, acidified by industrial flows of food industry enterprises, is formulated and substantiated. It was established that in the food industry widespread use was made by washing and disinfectant Oxonia Active-150 on the basis of 25 % peracetic acid. This substance as a result of leakage and sewage emissions, getting into the soil basis, reacts with the chemically active substances of the soil, which leads to swelling of the base. It has been found out that the most effective way of stabilizing the behavior of soils of the bases contaminated with industrial effluents is the injection methods of fixation, in particular, silicification. It is established that for today there is no method of fixing soils contaminated with solutions of peracetic acid, which would solve the problem not only improving the mechanical characteristics of contaminated soils, but also would take into account the environmental aspect of the problem. For this purpose, the main approaches to solving the problem of fastening and ecological cleaning of soils contaminated with solutions of peracetic acid have been developed and substantiated. A scientifically and experimentally grounded method for calculating the chemical fixation of soils, which are prone to contamination with solutions of peracetic acid, is proposed. The model of the grounded choice of method of fastening and clearing of soils, which takes into account all requirements, which are advanced to arrays of fixed soils, is offered. The basic technological and chemical criteria for choosing a method for fixing a contaminated soil mass are determined.