Features of technological water pollution during the development of the tin-ore raw materials in the borders of the tailings dam "dalnegorsky GOK"

Abstract

The article presents a long-term study of the features of technogenic water pollution within the influence of technogenic systems (tailings dams containing toxic heavy metal compounds). In this regard, the purpose of the work was to study the specifics of water pollution during the development of tin ore raw materials at the mining enterprise "Dalnegorsky GOKZ" of the Primorsky region to ensure its environmental safety. Based on the goal, the following tasks are formulated: (1) analysis, synthesis, and systematization of literature data on the problem; (2) assessment of the impact of waste stored in tailings on water and other environmental objects; (3) development of proposals for ensuring environmental safety of technogenic pollution. Research has established that the high toxicity of waste processing of tin ore raw materials stored in tailings dams located near mining villages, contributed to intensive pollution not only of the air basin, soil, vegetation (MPC excess was from 2 to 34 times), but also surface and groundwater (excess background readings were 5-9 times). On the basis of the conducted research, proposals were made to ensure the environmental safety of technogenic pollution.