Some common methods include: Reclamation of contaminated land by (1) adding lime or other alkaline materials to neutralize the acidity, and (2) adding uncontaminated top soil, planting vegetation, and modifying slopes to stabilize the soil and reduce infiltration of surface water into underlying contaminated material.
Can acid mine drainage be remediated?
Acid mine drainage (AMD) remediation can be complicated due to its composition, many researchers have used various techniques such as chemical precipitation, solvent extraction, micellar ultrafiltration, organic and inorganic ion exchange and adsorption (Hobbs et al., 2001, De Marco et al., 2003).
How can preventing acid mine drainage save water?
Direct treatment of the contaminated water , either through treatment plants (where lime or other neutralizing materials are added to reduce the acidity, which causes metals to precipitate out of the contaminated water) or artificial wetlands (which help sequester contaminated material in place, and where microbial ...
How can rivers be treated when acidic waste enter them?
Some common methods include: Reclamation of contaminated land by (1) adding lime or other alkaline materials to neutralize the acidity , and (2) adding uncontaminated top soil, planting vegetation, and modifying slopes to stabilize the soil and reduce infiltration of surface water into underlying contaminated material.
How can a mine actively treat acid mine drainage?
Some common methods include: Reclamation of contaminated land by (1) adding lime or other alkaline materials to neutralize the acidity , and (2) adding uncontaminated top soil, planting vegetation, and modifying slopes to stabilize the soil and reduce infiltration of surface water into underlying contaminated material.
How do you stop acid rock drainage?
Some common methods include: Reclamation of contaminated land by (1) adding lime or other alkaline materials to neutralize the acidity , and (2) adding uncontaminated top soil, planting vegetation, and modifying slopes to stabilize the soil and reduce infiltration of surface water into underlying contaminated material.
What are the three effects of acid mine drainage?
Problems associated with mine drainage include contaminated drinking water, disrupted growth and reproduction of aquatic plants and animals , and the corroding effects of the acid on parts of infrastructures such as bridges.
What is the root cause of acid mine drainage quizlet?
Mine contains metal sulphide that react to form sulphuric acid solution with dissolved metals. It is very toxic to aquatic life. After mining started, the rain exposed the sulphide and caused the drainage to contaminate the water, sediments, and ground water.
What is the main reason for acid mine drainage?
Acid Mine Drainage (AMD) is currently the main pollutant of surface water in the mid-Atlantic region. AMD is caused when water flows over or through sulfur-bearing materials forming solutions of net acidity . AMD comes mainly from abandoned coal mines and currently active mining.
How does the acid water leaks out of the mine?
Mine drainage
What is the threat of acid mine drainage?
Acid drainage polluted stream merges with unpolluted stream downstream from California’s Jamestown mine. Acid mine drainage is one of mining’s most serious threats to water. A mine draining acid can devastate rivers, streams, and aquatic life for hundreds , and under the “right” conditions, thousands of years.
Is acid mine drainage harmful to humans?
Heavy metals can be leached from rocks that come in contact with the acid, a process that may be substantially enhanced by bacterial action. The resulting fluids may be highly toxic and, when mixed with groundwater, surface water and soil, may have harmful effects on humans, animals and plants.
How does acid mine drainage affect the environment?
The most immediate and serious impacts of acid mine drainage are on natural waterways. High levels of dissolved metals may kill off all of the resident fish and aquatic life . Migratory creatures not resident to mining sites are also affected.
What is acid and metalliferous drainage?
Acid and metalliferous drainage, also known as acid mine drainage or acid rock drainage, is both an environmental and economic issue impacting metal, coal, diamond, mineral sand and uranium mining operations as well as other industrial and quarrying operations and sites affected by acid sulfate soils.
What is the difference between acid rock drainage and acid mine drainage?
In some cases acid rock drainage is a natural phenomenon. Some misleading call it acid mine drainage as if it’s exclusive to mining but acid rock drainage only occurs where there are sulfide minerals and many mines excavate rocks that do not even contain these minerals.
What does acid mine drainage smell like?
When exposed to oxygen and water, pyrite forms yellow and white salts of iron sulfate and sulfuric acid. As these rocks are flushed by rainfall or snowmelt, the salts and acids are released in the water and enter the streams. ... Another way to tell if a stream is impacted by AMD is if the water has a rotten egg smell .
