Diversion wells are another simple way of adding alkalinity
to contaminated waters. Acidic water is conveyed by a pipe to a downstream
"well" which contains crushed limestone aggregate. The hydraulic
force of the pipe flow causes the limestone to turbulently mix and abrade
into fine particles and prevent armoring. The water flows upward and
overflows the "well" where it is diverted back into the stream.
Diversion wells require frequent refilling with clean limestone to assure
continued treatment.
Return
to AMD Stakeholders' page
