In-Situ Chemical Oxidation process technology based on powerful hydroxyl radical chemistry and developed specifically for the most sophisticated environmental remediation projects.

APTwater's PulseOx® process is an in-situ chemical oxidation (ISCO) technology for the remediation of contaminated soil and groundwater. PulseOx systems offer 35-50% more powerful chemical oxidation, and up to 1-billion times faster reaction kinetics than conventional air-sparge or ozone-sparge remediation systems. PulseOx systems deliver greater value through faster cleanup and closure of environmental remediation sites.

The PulseOx system is based on patented ozone and hydrogen peroxide sparge technology that produces Advanced Oxidation Process (AOP) chemistry directly in the subsurface. This powerful hydroxyl radical oxidation chemistry rapidly oxidizes a wide range of groundwater contaminants. One powerful benefit of the PulseOx AOP reaction is a tremendous increase in groundwater dissolved oxygen (DO) content which promotes natural attenuation across the site. The aggressive injection process enables rapid clean-up of highly contaminated "hot-spots" or the effective development of contaminant barriers or "spare curtains."

PulseOx systems are available in a range of standardized sizes to suit a wide range of application needs. The self-contained and fully-automated systems allow for rapid deployment and easy operation.

Process Overview

The PulseOx system operates by injecting a sequence of pressurized 'pulses' of ozone, hydrogen peroxide, oxygen, and air directly into the subsurface. The injection sequence, timing, and proportions can be fully customized to assure that all chemicals and hydroxyl radicals are thoroughly distributed in the zone of contamination.

The entire PulseOx process is fully-automated. Injection intervals and volumes are set based on patented process chemistry that is customized to the type of contamination and actual site conditions. All systems are provided with full instrumentation for remote monitoring of all critical process parameters and to assure the highest level of safety. Once started, the system can provide fully-unattended remediation to increase productivity and significantly reduce treatment cost.

Applications