In certain soil remediation projects, there can be a need for purification of exhaust from air strippers, tent ventilation and even the interstitial air in the ground present naturally or under purge from treatment systems. Air Strippers The pump and treat method is a technology often used in soil remediation projects where contaminated groundwater is extracted by…
Introduction The properties of land fill leachate varies widely in composition depended on different factors such as the age of the landfill and the type of waste that is stored in the landfill. Water percolating through the waste will promote the micobiological decomposition of organics. This digestion process rapidily use up any available oxygen creating…
The Problem During commissioning stages, mercury was detected in the air of a newly constructed building. Being set on a former light bulb production site, the link was quickly made between historical mercury contamination of the soil and the previous use of the site. Analyses of soil samples also showed contamination of other heavy metals,…
Metolachlor is a chlorinated organic herbicide that was used for the weeding of maize and, occasionally, sunflower. Metolachlor and the metabolites ESA and OXA are present in the water resources in a large part of western France, despite having been banned in France since 2003. They are replaced by S-metolachlore which leads to the same…
