Are Pyrolysis & Gasification the Answer for PFAS in Biosolids? | WWD Weekly Digest

Biosolids management for wastewater treatment plants, water resource recovery facilities and other similar municipal plants has always presented a challenge. And with increased focus on per- and polyfluoroalkyl substances, which are found in biosolids, the public has growing concerns about destruction of the organic materials that result from wastewater treatment, particularly due to how difficult PFAS are to destroy.

Lloyd Winchell, associate engineer for Brown and Caldwell, shares information on the research he conducted around pyrolysis and gasification for water resource recovery facilities and the promise it holds for biosolids management. The technology has even shown as a possible destruction method for the so called "forever chemicals" or PFAS.

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Timestamps

• Intro | 0:00
• The challenge of PFAS in biosolids | 0:19
• Pyrolysis, thermal oxidation and gasification | 1:00
• Resource recovery uses for biochar | 2:15
• The fate of PFAS through pyrolysis systems | 3:03
• Outro | 4:02

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