Acid drainage from underground coal mines and coal refuse piles is one of the most persistent industrial pollution problems in the united states. pyrite in the coal and overlying strata, when exposed to air and water, oxidizes, producing ferrous ions and sulphuric acid.
Acid mine drainage from coal mining in the united states an overview articleacharya2020acidmd, titleacid mine drainage from coal mining in the united states an overview, authorb. s. acharya and g. kharel, journaljournal of hydrology, year2020, volume588, pages125061 b. s. acharya, g. kharel published 2020.
Acid mine drainage from coal mining in the united states an overview nasaads. water discharged from active, abandoned andor reclaimed coal mine sites with relatively higher acidity continues to belobal concern due to variable impacts on the quality of surface water and groundwater. treatment of such acid mine drainage amd is often.
Acid mine drainage innovative treatment technologies to remediation, especially for nontraditional treatments. appendixncludes brief summaries on the efforts being taken at the state level to address aml sites for selected states. 1.1 background mining practices, present and past, cause environmental problems that can damage ecosystems.
Acid mine drainage islobal problem. in the eastern united states alone, amd from coal mines has adversely impacted fisheries associated with over 13,000 kilometers 8,000 miles of streams in pennsylvania, west virginia, ohio, and maryland.
Acid mine drainage overview acid rock drainage ard is produced by the oxidation of sulfide minerals, chiefly iron pyrite or iron disulfide fes2. this isatural chemical reaction which can proceed when minerals are exposed to air and water. acidic drainage is found around the world.
Acid mine drainage the most prevalent see below alkaline mine drainage this typically occurs when calcite or dolomite is present metal mine drainage high levels of lead or other metals drain from these abandoned mines acid mine drainage is the formation and movement of highly acidic water rich in heavy metals.
Acid mine drainagecid mine drainageoften raises the ph of local streams. bisroblem in many of the coalmining regions of the eastern united states. cis primarily related to mining salt from the waters of the great lakes. disrocedure developed to reduce chemical pollutants in streams. categories.
Articleosti7318602, title acid mine drainage present impact and alternate future strategies.efs, author pappano, a. w. and gochenour, d. l., abstractnote the following topics are discussed update of study plan collection and review of information on acid mine drainage treatment systems collection and review of information on the monongahela.
Control of acid drainage from coal refuse using anionic surfactants by robert l. p. kleinmannnd patricia m. ericksonbstract to control the formation of acid drainage at its source, the bureau of mines has investigated the role of ironoxidizing bacteria in the oxidation of pyrite.
Extent of acid mine pollution in the united states affectg fi sh and wi ldli fe by edward c. kinney, staff specialist division of fishery management services washington, d. c. during 1963,eries of interbureau meetings concerning acid mine drainage problems was held by the department of the interior.
Growth, whereas mining operation has caused acid mine drainage amd with the abandonment of mines. as some researchers suggest, the history of amd is, generally, affected by the change in not only mining industry but also in social and economic conditions. thus, historical analysis is an effective way to find the key factors of amd.
One of the most serious impacts of coal mining is acid mine drainage. acid mine drainage contaminates ground and surface water with heavy metals and toxins exposed by mining. this destroys aquatic ecosystems and water supplies that communities depend on for drinking and agriculture. during mining operations, enormous amounts of groundwater are.
Request pdf acid mine drainage from coal mining in the united states an overview water discharged from active, abandoned andor reclaimed coal.
Summary. acid mine drainage amd refers to the outflow of acidic water fromining site. in most cases, this acid comes primarily from oxidation of iron sulfide fes2, also known as pyrite or fools goldhich is often found in conjunction with valuable metals. acid mine drainage isajor problem with many hardrock mines, including almost all mines where the metal ore is.
The environmental legacy of hundreds of years of coal mining in pennsylvania includes over 2,400 miles of pennsylvanias 54,000 miles of streams polluted by acid mine drainage from old mining operations. acid mine drainage is the single largest source of water pollution in the state.