2006-08-20 08:54:03 · 3 answers · asked by Sean N 1 in Science & Mathematics ➔ Earth Sciences & Geology
Limestone is the correct answer, or any carbonate. Acid mine drainage is usually dilute sulfuric acid (H2SO4). Groundwater moves through the coal remains and breaks down embedded pyrite (FeS2) creating sulfuric acid. Running acid mine drainage through limestone (calcium carbonate CaCO3) neutralizes the acids.
Mines other than coal can produce different acids, but limestone still a good base for neutralization.
2006-08-20 15:06:01 · answer #1 · answered by Tom-PG 4 · 0⤊ 0⤋
Limestone would neutralize acid rain. In many cases bedrock is limestone.
2006-08-20 14:09:19 · answer #2 · answered by Scott S 4 · 0⤊ 0⤋
Most likely a carbonate would do it, because the acid would react with the carbonate and neutralize, producing CO2 and lime.
2006-08-20 09:01:47 · answer #3 · answered by QFL 24-7 6 · 0⤊ 0⤋