Successful Greenstream© filter pilot
- Client Petrochemische industrie
- Location Rotterdam-Botlek
- Status In Progress
Remediation of a spill benzene with own designed filter On a location near the flare on the premises of a petrochemical company in Rotterdam-Botlek, where a benzene spill occurred in the past (after 1987). This has contaminated the soil and the groundwater with benzene and, to a lesser extent, mineral oil and volatile aromatics. Strukton Milieutechniek looked after the design and realisation of the in-situ remediation using its own in-house developed Greenstream© filter, initially on the basis of a pilot. A single Greenstream© filter was installed at a final depth of approximately 4 m b.g.l.; the circulation flow of the pump used with the filter varied from 90 to 120 litres per hour. To prevent iron scaling, the circulated water was regularly acidified. In addition, two soil air extraction filters were installed.
With the Greenstream© filter the contamination is cleaned up faster and with less costs.
Work in progress Rotterdam-Botlek
Using a Greenstream© filter – which is similar to a traditional compressed air injection filter in terms of dimensions – the contamination was remediated much faster and at a lower cost. On the one hand, this result was achieved through infiltration with water with a higher (saturated) oxygen content and on the other hand through a larger area of influence.