The report presents the results of long-term studies of the problem of ecological and chemical assessment of the impact of mineral processing waste in the form of pulp on the ecosphere, including aquatic ecosystems, and the development of bioengineering technologies (bioremediation) aimed at reducing their negative impact on the environment in the Primorsky territory. In the last century at the concentrating plant of the closed Khrustalnensky GOK mining enterprise a chemical method was used to treat industrial wastewater, a degree of which was no more than 75%. It is shown that pollutants discharged into water bodies after chemical treatment, which have a general toxic, carcinogenic and mutagenic effect, still pose a great threat to the ecological balance of natural systems. The studies show that there was intense pollution of ground and surface water, soil and vegetation, exceeding the regional background indicators up to 9 or more times within the boundaries of the anthropogenic system impact. Therefore, in the study area it is necessary to ensure environmental and social safety of industrial effluents by improving their treatment technology. In this regard, the aim of the research was not only to assess the extent of the negative impact of beneficiation mineral toxic wastes in the form of pulp to the ecosphere, but also in the development of biotechnological method of purification by biodegradation, bio-oxidation and biosorption from solutions using the metabolic potential of biological systems (hydrophytic plants). Based on the purpose, the following tasks are defined:
Experimental studies have proved the effectiveness of the biological systems potential (Lemna Minor) to ensure the normative quality of treated wastewater by the example of a closed mining enterprise in the Primorsky territory (Khrustalnensky GOK). The scientific novelty of the proposed method is confirmed by a Patent of the Russian Federation (2014).
|Affiliation of speaker||Pacific National University|
|Position of speaker||First Category Engineer|