HRC can also be delivered by injecting the polymer into the ground using direct push technology, such as a geoprobe or a cone penetrometer. Additional applications could involve the injection of solid polymer into the saturated zone with subsequent monitoring downgradient. HRC applications are best suited for dissolved contaminant remediation, to speed up natural attenuation. Since biological degradation is only effective for dissolved contamination, applications to residual NAPL source areas are limited to preventing downgradient migration. Overall, the pilot test results indicate that HRC can be used to enhance anaerobic cVOC biodegradation rates.
Results demonstrate rapid, low-cost, complete destruction of chlorinated solvents in groundwater.