Grantee Research Project Results
Use of Sulfur Polymer Cement and Sulfur Extended Asphalt for Solidification/Stabilization of Lead and Organolead Contaminated Soils
EPA Contract Number: 68D40054Title: Use of Sulfur Polymer Cement and Sulfur Extended Asphalt for Solidification/Stabilization of Lead and Organolead Contaminated Soils
Investigators: Cross, Wendall H.
Small Business: CCW Technology Group Inc.
EPA Contact: Richards, April
Phase: I
Project Period: September 1, 1994 through March 1, 1995
Project Amount: $55,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1994) RFA Text | Recipients Lists
Research Category: Hazardous Waste/Remediation , SBIR - Waste , Small Business Innovation Research (SBIR)
Description:
Solidification and stabilization process, often referred to as fixation or immobilization, involve mixing waste with an appropriate ratio of binder/stabilizer agents. Several agents are presently in use (E.G., portland cement). However, limitations related to interfering compounds present in the waste, particularly organics, and the chemical form of the metal to be stabilized (i.e., organometal rather than inorganic metal form) frequently causes failure of the solidified waste to meet regulatory criteria for disposal. Sulfur polymer cement, which has been used as a construction material due to its excellent resistance to acid and salt environment and superior water tightness as compared to portland cement concrete, has recently emerged as a possible alternative as a binder/stabilizer agent for solidification/ stabilization of hazardous, low-level radioactive and mixed wastes. Also, elemental sulfur recovered from industrial waste streams have been used to supplement asphalt cement by blending sulfur and asphalt to form sulfur extended asphalt for asphalt pavement construction with excellent performance characteristics. The technologies of applying sulfur to stabilize contaminated wastes (e.g., soils) for use as construction materials are readily available The objective of this proposed research program are thus:
- to evaluate the effectiveness of using sulfur in the form of sulfur polymer
cement and sulfur extended asphalt for solidification of lead contaminated
soils; and
- to assess the potential use of the treated soils as construction materials.
Supplemental Keywords:
Sulfur Cement, Solidification/Stabilization, Lead Waste, Construction Material., Sustainable Industry/Business, RFA, Scientific Discipline, Waste, Toxics, Hazardous, Technology for Sustainable Environment, Chemical Engineering, Engineering, Civil Engineering, Civil/Environmental Engineering, Chemistry, Sustainable Environment, HAPS, Environmental Chemistry, 33/50, Chemistry and Materials Science, Hazardous Waste, cleaner production/pollution prevention, Environmental Engineering, lead, sulfur polymer cement, concrete , lead & lead compounds, construction material, stabilization, contaminated soil, sulfur, sulfur extended asphalt, organolead, solidification, sulfur extend asphalt, Lead CompoundsProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.