ADE Consulting
.png)
Ensuring effective removal of PFAS from water sources is a growing challenge for governments and water utility companies around the world. Typically, this challenge when using sorbents not only involves ensuring effective adsorption of PFAS onto the material, but also ensuring that subsequent desorption is limited.
Testing conducted by ADE Consulting, which is one of Australia’s leading PFAS testing laboratories, showed that Bygen’s sustainable powdered activated carbon (PAC) and granular activated carbon (GAC) products were able to achieve 99% net removal efficiencies of both long and short-chain PFAS chemicals. Net removal is the total percentage mass that has been removed from the system irreversibly after the sorption/desorption testing. As with percentage sorbed, higher numbers indicate better performance of the tested product.
Several of Bygen’s activated carbon products achieved an adsorption percentage of 100% for PFOS, indicating that sorbents effectively captured all PFOS present in the solution. The desorption percentage was 0.0% for the best performing PFAS tailored activated carbon samples. The performance quotient for the samples was 100, reflecting an ideal scenario with no remobilisation of PFOS during desorption testing. Additionally, most of them recorded a net removal percentage of 99% to 100 %, highlighting that nearly all PFOS was removed irreversibly from the system. The results placed these samples at the top end of high-performing sorbents, indicating outstanding efficiency in sorption and minimal desorption, which aligns with the desired characteristics for effective PFOS remediation.
.png)
.png)
Similar results were observed for short-chain PFBS. All the samples exhibited exemplary performance, with an adsorption percentage of 100% and very low desorption percentages of 1.0%. These conditions led to performance quotients of 100, with net removal percentages of 99%. All samples indicated their exceptional efficacy in removing PFBA. This was a very strong result, given the difficulties of adsorbing short-chain PFAS compounds due to the common problem of desorption resulting from interactions inside the porous structure of the carbon. These findings indicated that the tested Bygen activated carbons exhibited strong and irreversible binding of target PFAS under the standardised test conditions, demonstrating their efficacy as PFAS adsorbents. Bygen is continuing to work on tailoring of our PFAS targeted activated carbon products to ensure that this performance is reflected in large-scale applications in future water treatment applications.
These findings indicated that the tested Bygen activated carbons exhibited strong and irreversible binding of target PFAS under the standardized test conditions, demonstrating their efficacy as PFAS adsorbents. Bygen is continuing to work on tailoring of our PFAS targeted activated carbon products to ensure that this performance is reflected in large-scale applications in future water treatment applications.
CONTACT US
38 Mercedes Drive
Thomastown, VIC 3074
Phone: +61 3 9465 2140
General Enquiries: info@bygen.com.au
Sales Enquiries: sales@bygen.com.au
