Evaluation of Mineral Oil Spill Absorbents for Lower Life-Cycle Costs and Improved Energy Recovery Options

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Poster:

Evaluation of Mineral Oil Spill Absorbents for Lower Life-Cycle Costs and Improved Energy Recovery Options

Presenter:  Tommy  Jordan (KEMRON)
Authors:  Tommy  Jordan (KEMRON), Dan Patel (Southern Company Services, Inc.)

Abstract:

KEMRON Environmental Services, Inc. performed an in-situ solidification/stabilization treatability study on “Pond Sludge” sampled from a former MGP site on the Susquehanna River Site (the site) located in Nanticoke, PA. The site materials presented a particularly difficult matrix of peat, organic silts, and backwater sediments. The primary objective of the bench scale study was to evaluate the ability of commonly used and readily available reagents and addition rates to achieve the performance criteria of a strength greater than 50 pounds per square inch (psi) but less than 250 psi after 28 days and a Hydraulic Conductivity value of 5.0 x 10-7. In order to assist in the development of appropriate reagent(s) and addition rates, KEMRON evaluated selected physical properties of the homogenized “Pond Sludge” material, readily available re-use fill material from the site and nearby areas, and manufactured sand. Based on the physical characteristics of the site material, re-use fill material, and manufactured sand, KEMRON developed experimental mixture formulations to evaluate relative strength gain and workability. A total of eight experimental mixtures were prepared using the Pond Sludge site material to determine if the addition of fill would increase the strength of the material and decrease the cure time. The eight mixtures were also prepared to evaluate a one or two step process of mixing. The results indicate that the addition of fill and a two-step process will potentially increase the strength of the material and decrease the cure time. A total of 12 mixtures were prepared, based on the results of the experimental mixtures, using the Pond Sludge material. Each mixture was evaluated for unconfined compressive strength (UCS) after 7 days of curing. The results of the 28-day testing indicated that the bench scale study successfully discovered a mix formulation and procedure that meet the site criteria of 50 psi for Unconfined Compressive Strength (UCS) and 5.0 x 10-7 cm/sec for hydraulic conductivity.

 

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