The paper analyzes the advanced technologies of wastewater treatment with a high content of organic pollutants and ammonium ions. Two different bi-stage scenarios for the treatment of such effluents are proposed. The first scenario includes the pretreatment in aerated lagoons and the final stage...

The military actions of the Russian Federation’s aggression in Ukraine cause irreparable damage to the soil cover, realizing that its natural restoration will take decades. However, missile attacks on residential areas bring no less damage and trouble to Ukraine. The main goal of the conducted...

The sorption properties toward strontium of bentonitic clays modified with Fe(II) and Cu(II) ferrocyanides and Ti(IV), Sn(IV), and Sb(V) hydroxides were studied. The sorption properties of modified bentonites significantly surpass those of the natural mineral. The sorption equilibrium is attained in 2 h. The most efficient sorbent is the bentonitic clay modified with titanium hydroxide, with which K _d reaches 3.2 × 10⁴.

The analysis of ecological hazards on soil pollution by oil products has been provided in the impact zone of the railway. The results of oil product migration in soils in the area of influence on section Lviv–Khodoriv are given. To study this problem, a method was used to take soil samples according to the standard DSTU ISO 10381-4: 2005. To determine the content of petroleum products used the method MVV No. 081/12-0116-03 Pochvy. Based on the results of the study it was found that contamination with petroleum products in the study area exceeds the norm in the area of influence of the railway at a distance of 5 to –50 m on average 3.5 times. It is proposed to make management decisions to prevent violations of the sanitary protection zone of the railway and the placement of agricultural plots on it. For rehabilitation of contaminated soils, it is advisable to use a natural sorbent – glauconite, which is widespread in the bowels of Ukraine. The adsorption capacity of glauconite relative to diesel fuel has been experimentally established. According to our experiments it is proved the high efficiency of the proposed sorbent, which is 90%. Therefore, in the future it is necessary to periodically monitor the condition of the soil in the area to prevent pollution. This study proves that this practice is necessary.

The ecological condition of the Stebnyk tailings storage during the period of its operation and the development of the processes of filling it with brines to a critical level are analyzed. It is shown that the main reason for the current state of crisis of this object is its incorrect operation...