MuckMix is a unique patented reagent system designed for petroleum refinery and other oily wastes.
MuckMix stabilizes and solidifies a wide variety of oily wastes.
MuckMix is 20 to 40% less expensive than Portland cement or other reagent systems.
MuckMix means low volume addition - typically less than 15%.
MuckMix results in a substantially impermeable, leach resistant and load-bearing final product.

MuckMix is a patented reagent system designed for large volumes of low-density oily wastes. MuckMix initiates a unique series of chemical reactions, which stabilize and solidify oily wastes into an impermeable and leach resistant product with typical permeabilities less than 1.0 x 10-6 cm/sec.

MuckMix’s unique blend of reagents converts oily waste sediment, sludge, and soil to useful soil-like material. The soil-like material has the properties of normal soils, can be graded and compacted and is suitable for on-site closures or reuse as construction material. Typically, the enhanced unconfined compressive strength of the treated waste material is greater than two tons per square foot (2 tons per sq. ft.).

MuckMix’s reagents are easy to apply using traditional in-situ methodology and equipment such as backhoes, rototillers, and long stick trackhoes. Depths of oily lagoons to 22 feet have been stabilized with MuckMix.

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Typical refinery sludge lagoon being prepared for MuckMix

A MuckMix Case History

A major refinery undertook the closure of a series of impoundments that contained accumulated oily wastes from past operations. The six impoundments at the site covered over 30 acres, and contained a mixture of petroleum waste sediments, included listed wastes, oily residues and standing water. Five hundred thousand cubic yards (500,000 cu yds) of sludge and over two hundred thousand cubic yards (200,000 cu yds) of stockpiled soil were included in the closure.

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Off-loading MuckMix reagents at lagoon

The sludges were problematic and highly variable due to differing amounts of contamination and physical characteristics:
  • Oil and grease up to 20% (by EPA 9071);
  • Solids ranging from 15% to 67% on a wet weight basis;
  • TCLP benzene from less than 0.01 mg/l to 2.3 mg/l;
  • Densities ranging from 65 to 88 pcf;
  • Wastes ranged from thin, free-flowing liquids to soil-like consistency.

The project goal was to efficiently and cost effectively stabilize the waste to achieve the following limits:

  • Effect a greater than 3.0 tons per square foot penetration resistance;
  • Assure a permeability equal to or less than 1.0 x 10-6 cm/sec;
  • Meet and exceed TCLP characteristic limits.
A series of MuckMix formulations were developed to handle the waste variability. These were bench scale tested and verified through a full-scale field demonstration.

For the production runs, select fill was added to the wetter sludge in advance of the solidification activities. The consistency of the pre-treated materials ranged from sludge-like to soil-like. MuckMix was then added at the rate of 35 pneumatic truckloads per workday equal to about 3,500 cubic yards of production per day. The overwhelming majority of the solidification took place in-situ using trackhoe mixing, at depths up to 22 feet. 

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Mixing MuckMix with oily sludge

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Final MuckMix process area.
Heavy load supporting in only 3 days !!

MuckMix not only met and often surpassed the project goals. MuckMix was also nearly 40% cheaper than the Portland cement mix.

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