Category Archives: Coal Tar

Anchor, Case Studies, Coal Tar, Coal Tar, Viscous Liquids

Sticky, Heavy Coal Tar

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An industrial setup with various pipes, valves, and a mechanical component mounted on a metal surface. A top-head drive pump is interconnected with the red-handled valve and several hoses, while an open cylinder hangs near the bottom. The background features a broad, flat surface under clear skies.
03
Jul

Pneumatics and electrics pump coal tar from 32 feet; recover 11k gal. over 3 yrs.

Thick, viscous, oily and sticky — coal tar tops the list in contaminated site remediation and source recovery when it comes to stubborn and ugly cleanup, especially if there is lots of the stuff.
Because of the difficult nature of coal tar, initial recovery efforts were skimpy and sporadic at the 30-acre Calhoun Park Area Superfund Site in the historic harbor district of Charleston, S.C., until site managers brought in a Blackhawk Anchor Electric piston pump to replace pumps that were performing poorly.

The Anchor was successful in steadily removing sinking DNAPL coal tar, prompting purchase of three additional Blackhawk Anchor Electric and Atlas Pneumatic pumps. Over three years, the Blackhawks pumped more than 11,000 gallons of coal tar from substrate at depths to 32 ft. below grade.

Pneumatics and electrics pump coal tar from 32 feet; recover 11k gal. over 3 yrs. Thick, viscous, oily and sticky liquids.

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Case Studies, Coal Tar, Coal Tar

Sipping Coal Tar, a Cup at Time – Up to Now

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A close-up view of a drilling rig in operation at an oil site highlights the equipment, including a top-head drive pump over a well, a large black storage tank, hoses, and cables. The setup is placed on a plastic tarp with grass and a chain-link fence visible in the background.
03
Jul

For many years, black and thick coal tar has been slowly collecting in a bedrock depression that forms a natural catch basin 50 feet below the grass of a U.S. municipal park. And as the accumulating weight of the underground "pond" is now forcing the tar into ever-smaller fissures of bedrock, the obvious response is to get the gunk out of there ASAP.

Which is exactly what the area utility company, its contracted engineers and the administrators of a mid-sized city want to do. So far it has been slow going; they are employing two top-head-drive piston pumps to pull up a mere cup of tar each, twice an hour. That's a quart in 60 minutes, or only six gallons a day. It takes nine days to fill a 55 gallon drum.

For many years, black and thick coal tar has been slowly collecting in a bedrock depression that forms a natural catch basin 50 feet below the grass of a U.S. manufacturer.

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