EVONIK reagents (EHC, ELS, Klozur KP and Klozur CR) injected at high pressure into silts and clayey silts.
Date
November 2021
Location
Irun (Gipuzkoa)
Technique
ISCO + ISCR
Contamination
TPH, oils and organochlorines
Litres injected
12,000 L
Injection points
8
Maximum depth
6 m
Days on site
7
The work
An industrial site in Irun (Gipuzkoa) with a mix of TPH, oils and organochlorines in the vadose and saturated zones, over silts and clayey silts.
We combined in situ chemical oxidation (ISCO) and reduction (ISCR) with EVONIK reagents —EHC Reagent, ELS Dry Concentrate, Klozur KP and Klozur CR—, injected with a WILDEN XH800 high-pressure pump at 5 to 16 bar.