The Government of Aragon has recently awarded DTD the execution of this project. Leachates from the Sardas landfill have a presence of hazardous compounds associated with the production of lindane in the former Inquinosa factory. Since 2010 these leachates were treated in a small portable plant. The final installation, with a capacity up to 240 m3 / day constant of a multi-stage filtration process on activated carbon.