An
environmental company was working on a project to replace several old
underground fuel supply lines near the environmentally-sensitive North
Carolina coastline. The lines ran from a tank farm pump station
to several areas around the site. Over a period of years, several
catastrophic breaks in the fuel lines had left the groundwater
contaminated with up to a foot of oil.
The environmental company contacted Rain for Rent, Charlotte for a filtration solution capable of separating and polishing the contaminated groundwater. Utilizing our Water Data Sheet (WDS), Rain for Rent's filtration specialists designed a system capable of handling the required 400 gpm flow; however, the industrial waste treatment plant could only handle 200 gpm.
To
accommodate the needed flow, the system was split into two separate
setups, each consisting of one
18,000-gallon weir holding tank and one
air diaphragm
pump to extract the ground water from the weir into two
oil water separators.
Each set-up was manifolded to transfer the skimmed oil from the oil
water separator into a
600-gallon poly tank, then pumped into a
bi-level tank for storage.
The filtration system ran successfully for six weeks and was so efficient
that the groundwater was safely discharged into a nearby storm drain.