Impact of demolition work of the environment, generated by mine closures in Jiu Valley

Vlad Lăutaru,Marius Kovacs,Alin Irimia,Andrei Gireadă,V.M Pasculescu

doi:10.1051/matecconf/202030500036

Abstract

Extractive industry has had and has negative effects on environmental factors. Limitation of industrial activities carried out in Jiu Valley, materialized by closure of mining units, brings to actuality the rehabilitation of areas occupied by constructions and surface utilities related to the technological process of underground coal extraction. First stage of surface rehabilitation and greening is the demolition of surface buildings by means of technical implosion / blasting or classic techniques. This stage generates a series of physicochemical pollutants that can have a significant impact on environmental factors. The main objective of the current paper is to identify pollutants and the negative effects they may have on human health as well as to reduce the environmental impact of materials from demolition operations. The paper has the advantage of quantifying waste resulting from demolitions in order to reduce impact on the environment by revalorizing the obtained materials (metal, concrete, wood, brick etc.) thus reducing the quantities of industrial waste to be stored. Thus, it is possible to plan the greening of areas affected by mining activities in the shortest possible time, correlated with the program of territorial systematization, in order to capitalize on new economic opportunities for use of these lands.

Highlights

Capitalization of natural resources is an anthropic activity that provides raw materials for many industrial branches
The waste resulting from demolition of surface structures within mining units is considerable and a series of steps and measures need to be established to streamline their reinsertion into the economic circuit [5]
In order to minimize the environmental impact generated by demolition activities of technological and administrative mining constructions, it is necessary to quantify the resulting waste

Summary

Introduction

Capitalization of natural resources is an anthropic activity that provides raw materials for many industrial branches. After depletion of mineral resources, the mining objectives go into closure process and, implicitly, the greening of affected area begins. The current paper deals with the environmental impact of these activities, focusing on greening phase of the mine closure project as part of the mining life cycle. The subject of mining closure through the stage that aims at greening surface objectives is of particular importance to all the actors involved:. - for authorities and the government, in terms of solving the acute environmental issues and social and economic revitalization of vast regions;. Many of the surface objectives are decommissioned by blasting or imploding. Performing industrial building blasting activities for buildings to be decommissioned involves a series of operations that generate environmental pollution short-term risks and risks for buildings and people in neighbourhoods. The waste resulting from demolition of surface structures within mining units is considerable and a series of steps and measures need to be established to streamline their reinsertion into the economic circuit [5]

Closure of mining objectives

Quantification of waste resulting from demolition activities

Greening the surface objectives of Lonea and Lupeni mining units

Conclusions