Background
In order to modernize and expand the company’s premises, it was necessary to restore a sludge disposal lagoon, as well as an adjacent site where soil was impacted with hydrocarbons. The lagoon waste was classified as hazardous, as such, disposal was extremely costly. As a result, Biogenie was called upon by the client to develop a cost-efficient alternative.
 

Solution
Having completed a laboratory treatability study and small-scale pilot study, Biogenie was in a position to offer a customized and cost-effective solution for the remediation of hazardous sludge. An ex situ Biopile process, coupled with a biofilter for treating gas effluents, was used to treat the sludge and contaminated soil simultaneously. Biogenie successfully reduced the level of contamination from a hazardous waste to a domestic solid waste classification, resulting in significant savings in landfill disposal costs.
 

Services

• Characterization study and 3-dimensional visualization of the site to determine the extent and degree of underground contamination;
• Treatability study to develop an appropriate biological treatment, notably for sludge;
• Design and assembly of treatment equipment;
• Removal of 11 underground storage tanks followed by the excavation of sludge and contaminated soil;
• Biotreatment of approximately 2,000 tons of hazardous waste sludge and 14,000 tons of soil containing petroleum hydrocarbons, monocyclic aromatic hydrocarbons and phenols;
• Final disposal in a sanitary landfill site.

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