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Table 7 Achievable separation factors if regeneration is carried out after the onset of breakthrough of the substance under consideration

From: Sorptive removal of short-chain perfluoroalkyl substances (PFAS) during drinking water treatment using activated carbon and anion exchanger

Parameter

Operation time until required regeneration, BV

Amount of regenerate, BV

Separation factor

PFPrA

1000

10

100

PFBA

4000

10

400

PFPeA

10,000

10

1000

PFHxA

25,000

10

2500

PFHpA

 > 50,000

10

 > 5000

PFOA

 > 50,000

10

 > 5000