mine draining methods

An Electrochemical Method for Acid Mine Drainage

An Electrochemical Method for Acid Mine Drainage Remediation and Metals Recovery EPA Grant Number: R825549C025 Subproject: this is subproject number 025 , established and managed by the Center Director under grant R825549 (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

Drainage Methods

Drainage Methods Gas drainage for the purpose of eliminating the outburst hazard consists of drilling holes within the seam being mined to allow gas to bleed off from the coal into the hole In its state, the gas is "adsorbed" onto the coal, a physical bonding largely governed by pressure.

What can be done to prevent or clean up acid mine drainage

Water flowing through active or abandoned mine sites can become polluted by the material being mined[1] By far the most common mine drainage problem is that of acid mine drainage (AMD) Sulfuric acid is produced when water interacts with sulfur-bearing materials in the presence of oxygen and common bacteria[1].

Draining the depths

Aug 23, 2011· According to local publication Mining Weekly, “Using borehole pumps in the main shaft is a more cost-effective option for draining a flooded mine than old, alternative methods that are costly and labour-intensive The Howden Pumps system can also be installed quickly, being in place and pumping within five days of installation work beginning”.

GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL

tailings and extent of acid mine drainage around mineral deposits (Dave and others, 1986) THERMAL METHODS Two distinct techniques are included under thermal methods (table 1): (a) borehole or shallow probe methods for measuring thermal gradient, which is useful itself, and with a knowledge of the thermal conductivity provides a.

Technology Data Sheet Mine Dewatering

Technology Data Sheet Mine Dewatering Groundwater is a common problem when mining, and developing a mine below groundwater level presents many challeng Poorly controlled groundwater will have negative impacts on the safety, efficiency and economics of mining operations.

Mine dewatering

A mineral deposit may not be feasible to extract if the inflowing water exceeds economic pumping capacity It is important for the mine planning department to have an accurate estimate of groundwater flow that will be encountered in the underground mine and to have a method of dewatering the mine if deemed necessary.

Mines must take 'prime responsibility' for acid drainage

Mines must take 'prime responsibility' for acid drainage Tainted water gushes out of the earth and a pipe, just outside Rand Uranium property on Johannesburg's West Rand Aug 24, 2019.

AN OVERVIEW OF MINING WASTE MANAGEMENT ISSUES IN

drainage from mining sit An exhaustive evaluation of the site selection and facility design of any proposed mining waste site is required, and prospective mining wastes must be thoroughly characterized with respect to their acid generation potential, leaching characteristics and chemical, mineralogical and radiological composition.

Acid Mine Drainage Control Methods

In most operations this has meant the use of treatment methods (neutralization) while the technology for the prevention of acid drainage is being developed or refined To date, underground abatement of acid formation has generally been less expensive but also less effective than surface treatment of the mine.

Technical Document: Acid Mine Drainage Prediction

Acid Mine Drainage Prediction A CID M INE D RAINAGE P REDICTION 1 INTRODUCTION The US Environmental Protection Agency (EPA), the states, and the Federal Land Management Agencies all need better tools to manage acid mine drainage at mine sit This report examines acid generation prediction methods as they apply to non-coal mining sit.

Remediation Techniques

Source Control or Remediation of Mine Wastes: Low Cost/Low Maintenance Methods The document is a collection and summarization of literature on metal mining companies utilizing innovative source control and remediation techniques for managing their wast Contact names and numbers for most companies are included.

A clean way to extract rare earth metals

Jun 17, 2016· Current separation methods involve hundreds of steps and lots of hazardous chemicals Clarke and Bonifico found inspiration in the living world of bacteria Bacteria filters have long been used to bioabsorb toxic elements from wastewater or filter metals from mine drainage systems.

Method 1627: Kinetic Test Method for the Prediction of

This method originated under the auspices of the Acid Drainage Technology Initiative (ADTI) which is a consortium of scientists from federal research and regulatory agencies, state regulatory agencies, the mining industry and its consultants, and academia, who develop mine drainage technology through consensus building The method has.

Effective Treatment Options for Acid Mine Drainage in the

Effective Treatment Options for Acid Mine Drainage in the Coal Region of West ia , Kirby, Daniel, "Effective Treatment Options for Acid Mine Drainage in the Coal Region of West ia" (2014)Theses, Dissertations , Today there are many methods that are in practice on active mine sites to prevent this from happening This includes.

Dewatering of Mine Drainage Sludge

----- Dewatering of Mine Drainage Sludge by Coal Research Bureau West ia University Morgantown, West ia 26506 for the ENVIRONMENTAL PROTECTION AGENCY Project 14010 FJX December, 1971 For sale by the Superintendent of Documents, US Government Printing Office, Washington, DC 20402 - Price $100.

A clean way to extract rare earth metals

Jun 17, 2016· Current separation methods involve hundreds of steps and lots of hazardous chemicals Clarke and Bonifico found inspiration in the living world of bacteria Bacteria filters have long been used to bioabsorb toxic elements from wastewater or filter metals from mine drainage systems.

New Facility to Treat Acid Mine Drainage in the Cheat

Jun 07, 2017· A massive new water treatment facility under construction near Albright, WV will pipe water directly from abandoned mine discharges in the Muddy Creek watershed

In particular, the UIS methane drainage borehole design and sealing are emphasized Finally, summary and conclusions on all previous investigations are given This review work could deliver meaningful knowledge of methane emissions and drainage methods in underground mining to related researchers and mining engineers.

Environmental impact of mining

With large amounts of water used for mine drainage, mine cooling, aqueous extraction and other mining processes, increases the potential for these chemicals to contaminate ground and surface water As mining produces copious amounts of waste water, disposal methods are limited do to contaminates within the waste water.

How can acid mine drainage be treated?

Treatment of AMD: Acid mine drainage sometimes forms when certain minerals in the soil and rocks around mines are exposed to weathering processes during miningThese exposed minerals release their contents into creeks causing them to become acidic This kind of pollution damages aquatic life and makes the water useless or harmful for others who depend on it for recreation or drinking water.

Acid Mine Drainage

Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal min Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks.

Some Technical Aspects of Open Pit Mine Dewatering

Drainage Control for Surface Mines 22 Some Technical Aspects of Open Pit Mine Dewatering by V Straskraba, Senior Mining Hydrogeologist, Dames & Moore, Denver, Colorado, USA In recent years the increase in development of new open pit mines, especially in the Western US, is evident.