Pressure pulse method for the optimization of substrate introduction during in-situ bioremediation
Unfortunately, the remediation objectives were not achieved at the CHC-contaminated site, even after long-term ENA treatment (active agent introduction actions). This was due to the subsequent release of contaminants from undisclosed micropores.
A pilot study was then carried out by Sensatec to test the dynamic pressure pulse infiltration technique instead of the previously used static infiltration technique at selected infiltration sites. The study showed that there was a significant increase in the ethene buildup at all surrounding measuring points, in addition to a significant reduction in injection loads. .
Technology / Features
In contrast to conventional low pressure or pressureless liquid infiltrations, pressure pulses are generated directly at the head of the injection level. The amplitude and frequency of the pressure pulses are determined by feedback control and are adapted to specific substrate conditions. The DDI technology can be implemented with almost any existing infrastructure with no external media connections, electricity or water requirements. The best results are achieved when the filter distance and output diameter are kept to a minimum (preferably DirectPush method).
Dipl.-Ing. Mark Zittwitz
phone (030) 8094 1576