SUCCESSFUL CO-COMPOST REMEDIATION PROJECT POINTSTHE WAY TO 45 REDUCTION IN OIL SPILL CONTAMINATED SOILREMEDIATION COSTS

摘要

Starting in the fall of 1998, Millennium EMS Solutions Ltd. Undertook a co-compostremediation program on behalf of Gulf Canada Resources Limited involving oil contaminated soil at a pipelinebreak located near Gilby, Alberta. Approximately 1100m3 of heavy clay textured, hydrocarbon contaminatedsoil (5,000 to 6,000 ug/g TPH) was windrowed, treated with soil amendments (manure, fertilizer and woodwaste), windrow turned two times and left to digest over the cold winter months. In early spring, the windrowswere turned two more times. The results of the soil sampling and analysis completed 210 days after initiationshow the soil to have been remediated to below Alberta Tier 1 cleanup criteria (1000 ug/g). Toxicological testsfor aquatic and terrestrial systems have been successfully conducted to confirm the clean levels of theremediated soil.The co-composting remediation of the additional 2000m3 of hydrocarbon contaminated soil commenced inJuly, 1999. The results from this phase have not available when this paper was prepared but are expected to besimilar. They are expected to be presented at the World Petroleum Congress in June, 2000.