Hydrocarbon Remediation Trials Case Study
Project Title
Hydrocarbon Remediation Trials
Site
The trials were carried out at an ex-Royal Naval tank farm site, used for storing ships fuel oil.
Contamination
The site is heavily contaminated with hydrocarbons with levels of up to
40,000 mg/kg.
This source of the contamination is the tank farms, pipelines and the fuel depot.
Remediation
The trials looked at both bioremediation and stabilisation. Prior to treatment through the remediation plant the contaminated material had to be screened to ensure that all material >50 mm was removed.
The < 50 mm fraction was then fed into the machine where it was mixed with the treatment chemicals.
The different trials were then set up and monitored over a period of 3 months. The temperature of each pile was recorded weekly, in addition moisture content and respiration rate were recorded in the bioremediation piles.
Benefits
These trials found that hydrocarbon leaching from the untreated soil was 5 times greater than from soil which had been stabilised, therefore the impact of the material on the potential receptors has been greatly reduced.