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Stabilization/solidification of petroleum drill cuttings

Leonard, SA; Stegemann, JA; (2010) Stabilization/solidification of petroleum drill cuttings. J HAZARD MATER , 174 (1-3) 463 - 472. 10.1016/j.jhazmat.2009.09.075.

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A systematic treatability study was conducted for the treatment of drill cuttings, a waste generated during petroleum exploration and production. by stabilization/solidification with Portland cement (CEM 1), with the addition of high carbon power plant fly ash (HCFA), an industrial by-product, as a novel sorbent for organic contaminants. A factorial design experiment was adopted to investigate the effects of waste-to-binder ratio, binder formulation,and curing time on response variables including unconfined compressive strength (UCS), hydraulic conductivity, porosity, leachate pH, and acid neutralization capacity (ANC) of the s/s products. Results show that all factors had significant effects on the properties of the s/s products. Drill cuttings and HCFA addition both reduced UCS, but HCFA improved hydraulic conductivity, relative to CEM 1 only s/s products. Drill cuttings addition had little effect on the ANC of products prepared with CEM 1 only, and improved that of products containing HCFA. Management options assessment based on performance criteria adapted from regulatory and other guidance suggests that the s/s products could find application as controlled low-strength materials, landfill liner, and landfill daily cover. This work demonstrates how a systematic treatability study can be used to develop a s/s operating window for the management of a particular waste type. (C) 2009 Elsevier B.V. All rights reserved.

Type: Article
Title: Stabilization/solidification of petroleum drill cuttings
DOI: 10.1016/j.jhazmat.2009.09.075
Keywords: Petroleum drill cuttings, Stabilization/solidification (S/S), Cement, Fly ash, Factorial design, Waste utilization, SOLIDIFICATION-STABILIZATION, WASTES, CEMENT, STABILISATION/SOLIDIFICATION, IMMOBILIZATION, CONTAMINANTS, TECHNOLOGY, CONCRETE
URI: http://discovery.ucl.ac.uk/id/eprint/105695
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