Efficacy of ADsorb-it® in Removing Residual Oil Sheen

Adequate equipment is available for the removal of gross oil contamination from surface waters. Subsequent to the removal of gross oil contamination by this equipment, inevitably, residual rainbow sheen remains.

ADsorb-it® effectively removes gross oil contamination, lighter-end oils, and residual rainbow sheen.

Surface Waters

Use the Shore Guard aka “Dumbo Surfer”, the Boom and Dock Curtain, the Filter Boom, or the Boom Cover.

For oil releases on open waters or near shorelines, use interconnected sections of the Dumbo Surfer or Boom Cover with watercraft on each end. Form a “U’ or “J” and slowly tow the interconnected sections through the impacted area. The oils, oil-borne contaminants and oil sheen will be retained in the ADsorb-it® material. To reuse these products, simply remove the flotation core and press, wring, or centrifuge to remove and recover the retained oils. Replace the flotation core and your ADsorb-it® product is ready to reuse.

For oil releases adjacent to floating docks or in an area where Fence Boom has been deployed, attach the Boom and Dock Curtain to the floating docks or to the top of the Fence Boom. The Boom and Dock Curtain is designed with ballast chain to ensure that the curtain hangs just below the floats on the Fence Boom. Oils, oil-borne contaminants and oil sheen will be retained in the Boom and Dock Curtain. To reuse the Boom and Dock Curtain, simply remove the ballast chain and press, wring, or centrifuge to remove and recover the retained oils. Replace the ballast chain and the Boom and Dock Curtain is ready to reuse.

For oil releases in streams, rivers or other flowing waters interconnected sections of the Filter Boom can be deployed across the flowing water to recover oils, oil-borne contaminants and oil sheen. The Filter Boom is designed with a flotation head and ballast chain to keep the lower portion of the filter curtain below the water surface. Oils, oil-borne contaminants and oil sheen will be retained in the Filter Boom. To reuse the Filter Boom, simply remove the flotation head and ballast chain and press, wring, or centrifuge to remove and recover the retained oils. Replace the flotation head and ballast chain and the Filter Boom is ready to reuse.

For small oil releases in contained areas or on any smooth surface indoor or out, use the Oil Sweep to recover oils, oil-borne contaminants and oil sheen. The Oil Sweep is designed to attach to a standard dust mop handle and frame. To reuse the Oil Sweep simply remove the frame and press, wring, or centrifuge the Oil Sweep cover to remove and recover the retained oils. Replace the frame and the Oil Sweep is ready to reuse.

Oil/Water Separators

Oil/water separators efficiently remove MOST of the oil as oily water passes through the system. Again, on most oil/water separators, a residual rainbow sheen remains at the point of final discharge. Simply provide ADsorb-it® as a final filtration media and the final discharge oil sheen is eliminated. See a simple Polishing Filter Pack Unit design with screen plates covered with ADsorb-it®, and a drop-in Oil Water Separator Filter Curtain design.

On September 17th of last year, ADsorb-it® was fully approved by the Korean Government for use as the “media of choice” for filtration of waste water discharge from their coal fired power plants.  The volume of water treated for direct discharge to the environment is substantial.  There are 8 filter sections with up to 9 ADsorb-it Filter Packs per section for a total of 72 Filter Packs.  6 pumps move 120m3 / Minute (31,700 Gallons per Minute) through the filters.

The US Navy uses the ADsorb-it® fabric on the shoreline beneath their oil/water separator outfall to absorb the oil and oil sheen, and they are designing a new oil/water separator with the ADsorb-it® Filtration Fabric specified as the filtration media of choice.

Conclusions

These methods demonstrate that ADsorb-it® is the product of choice for removing the residual oil sheen from water.

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