نتایج جستجو برای: mine investment

تعداد نتایج: 93940  

Journal: :iranian journal of fuzzy systems 2014
iraj alavi

all steps of a mining project generally disturb the environment'soriginal condition during construction. therefore, it is crucial toimplement an appropriate mine reclamation plan throughout all mineplanning stages from sustainable and environmental point of view.planting the suitable plant species in each step of any reclamationplan and each area is one of the necessities in this respect.select...

Journal: :Resources Policy 2022

This article addresses Mexico’s present situation in the lithium industry and its near future, ceteris paribus. short- long-term supply will not improve by exploration exploitation planned nationalistic objectives of current government. analysis demonstrates that significant changes must be made to energy policy promote development due five risks: manufacturing capacity, misaligned incentives, ...

Journal: :Minerals 2022

Innovation has an important role in improving the productivity, safety and sustainability of mining operations. Historically, ore transport was done by diesel trucks, but with commitment to reduce CO2 emissions increase mine safety, companies have invested innovative, more sustainable technologies. The innovative truckless system, intensive use belt conveyors from processing plant, represents a...

Journal: :Environmental science and pollution research international 2013
Nada Rapantova Monika Licbinska Ondrej Babka Arnost Grmela Pavel Pospisil

The aim of the study is to assess the evolving mine water quality of closed uranium mines (abandoned between 1958 and 1992) in the Czech Republic. This paper focuses on the changes in mine water quality over time and spatial variability. In 2010, systematic monitoring of mine water quality was performed at all available locations of previous uranium exploitation. Gravity flow discharges (mine a...

Journal: :Journal of engineered fibers and fabrics 2014
F Selcen Kilinc William D Monaghan Jeffrey B Powell

The mining industry is among the top ten industries nationwide with high occupational injury and fatality rates, and mine rescue response may be considered one of the most hazardous activities in mining operations. In the aftermath of an underground mine fire, explosion or water inundation, specially equipped and trained teams have been sent underground to fight fires, rescue entrapped miners, ...

Journal: Desert 2020
A. Rashtian, H.R. Azimzadeh N. Monemi S.H. Jafari

Environmental contaminations resulting from mining operations play an important role in the collapse of ecosystems balance. In order to measure vegetation characteristics and to study soil and plant contamination in rangelands surrounding bauxite mine, a systematic random sampling was done according to physiognomy and homogeneity of vegetation cover. Sampling was performed using a 50-meter tran...

2015
Sang-Ho Lee Injeong Kim Kyoung-Woong Kim Byung-Tae Lee

In order to assess the ecological effect of acid mine drainage, metal mine (Dalsung) and coal mine (Samtan) drainage in South Korea were collected. The each mine drainage then investigated by whole effluent toxicity test (WET) and toxicity identification evaluation (TIE). WET results demonstrated that DS leachate and ST mine water is more toxic than other mine drainage due to the presence of ca...

2008
Christian Baresel

Relevant implementation of the EU Water Framework Directive with regard to mine water pollution of downstream water bodies requires pressure-impact assessment and catchment-scale economic optimisation of abatement measures. However, pressure-impact assessment is bound to be uncertain. This is because mine water pollution is often an unknown combination of pollution loads, from both known mine w...

2002
Per Espen Hagen

The Norwegian long-term program for military use of autonomous underwater vehicles (AUVs) reached an important milestone in December 2001, when the concept of AUV based mine hunting and rapid environmental assessment (REA) was demonstrated from the Oksøy class mine hunting vessel KNM Karmøy. Within one day, the complete concept of AUV based mine hunting was demonstrated: The HUGIN AUV was progr...

2007
Guozhi Lu Jianquan Tang Chunhui Yao Lei Yang

In this paper, by analyzing the coal mine safety accident of present stage, the author has come to a conclusion that the safe accidents on coalface accounting for a lot of coal mine safety accident, and has brought forward the cause leading to this phenomenon. Then, through the discussion about “Overlying Strata Movement Law”, this author has suggested that Electronic Business can be used for t...

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