A NOVEL HYDROGEN RELEASE COMPOUND (HRC?) INJECTION METHOD FOR COMPLICATED SITE GEOLOGY

摘要

solvents released at the Millville, NJ site migrated through heterogeneous deposits in the coastal plain of New Jersey’s Cumberland County resulting in a contaminant plume 40 feet below grade and ranging from 40 to 150 feet in thickness. Development constraints precluded conventional treatment and the presence of biodegradation products indicated accelerated natural attenuation as a viable alternative. Hydrogen Release Compound (HRC?) was selected to stimulate indigenous dechlorinating bacteria but conventional direct-push applications were unable to consistently deliver the product due to the heterogeneity of the soil and the presence of a hard gravel and sand mixture. A method was developed to reach depth using a hollow-stem auger and inject through the auger using an innovative high-pressure tremie tube and a reciprocating piston grout pump.