New data from an ongoing pilot test at a Danish landfill shows remarkable results. BioScavenge has succeeded in treating PFAS-contaminated leachate down to levels far below national limits.
GRINDSTED, Denmark. As the debate over PFAS contamination intensifies, BioScavenge is now presenting concrete solutions. Data from the second and current pilot test of an innovative treatment technology shows that the feared forever chemicals can be removed almost entirely from complex wastewater (leachate).
The latest analyses document a significant reduction:
PFAS-4: reduced from 560 ng/l to just 0.14 ng/l
PFAS-22: reduced from 2400 ng/l to just 3.1 ng/l
For reference, the Danish limit for PFAS-4 in drinking water is 2 ng/l. The result means the technology not only treats the water but leaves it in a state well below the thresholds set by authorities.
A breakthrough for the environment Leachate, the water collected from landfills, is notoriously difficult to treat because it contains a complex mixture of many different substances.
“That we can bring PFAS-4 all the way down to 0.14 ng/l, as well as PFAS22 down to 3.1 ng/l, in an environment as complex as leachate is a major breakthrough. It proves our method is extremely effective, even when concentrations are high and the water is difficult to handle” says Aleksandar Mitic, Chief Science Officer at BioScavenge.
Aleksandar Mitic, Chief Science Officer at BioScavenge.
“That we can bring PFAS-4 all the way down to 0.14 ng/l, as well as PFAS22 down to 3.1 ng/l, in an environment as complex as leachate is a major breakthrough. It proves our method is extremely effective, even when concentrations are high and the water is difficult to handle” says Aleksandar Mitic, Chief Science Officer at BioScavenge.
From pilot test to full scale The current test is being carried out at the Grindsted landfill in partnership with Deponi Syd. The aim of the project’s second phase is to confirm the stability of the treatment over time and to support the further work of rolling out the technology at full scale at Danish and international landfills.
By treating PFAS directly at the source, the spread of these substances to groundwater is effectively prevented, as is the burden on municipal treatment plants that are rarely built to handle these chemicals.
Deponi Syd, the project partner, comments: “We are genuinely pleased and highly impressed with how effective the treatment is.”
“We are genuinely pleased and highly impressed with how effective the treatment is.”
Deponi Syd
Facts about the results: – Treatment rate: over 99.9% for the critical PFAS-4 compounds – Method: innovative treatment of leachate directly at the landfill – Status: second pilot test underway to document operational reliability and scalability
Contact information: For detailed technical data, interviews, or a visit to the test site: Ole Falholt, BioScavenge Tel: +45 53 54 14 14 Email: of@bioscavenge.com
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