pfas removal: gac & ix...apr 05, 2018  · pfas removal: gac & ix eric forrester technical...

PFAS Removal: GAC & IX

Eric Forrester

Technical Development Engineer fforrester@calgoncarbon..com

Alexandra Lynn, P.E.

IX Product Manager & Senior Process Engineer alynn@calgoncarbon.com

WHO WE ARE…

© Calgon Carbon Corporation 2018 | Slide 3

Who Is Calgon Carbon Corporation

• World’s largest producer of Granular Activated Carbon • Solves customer purification and separation problems with an array of

technologies • Water treatment is core competency with a diverse product portfolio

Corporate Profile

1,400+ employees

$619.8 million 2017 net sales

25 offices sales and service

240 patents

20 facilities Manufacturing, reactivation,

equipment

75 years experience

© Calgon Carbon Corporation 2018 | Slide 4

Our Experience with PFAS Removal

• Granular Activated Carbon (GAC) and CCC’s Equipment Line are proven treatment solutions for PFAS removal

• Over 45 installations for PFAS removal across the United States • Offer complete solution including activated carbon, ion exchange resin,

equipment, on-site installation and exchange services, reactivation and financing.

Removing PFAS for 15 Years

Unrivaled technical service

Laboratory & field testing for tailored

solutions

Applications Engineers and R&D team

dedicated to solving customer problems

Proven products and solutions for drinking water, wastewater,

remediation and POET

Carbon reactivation to thermally destroy PFAS and enable the reuse of

activated carbon

© Calgon Carbon Corporation 2018 | Slide 5

Calgon Carbon PFAS Treatment Locations

45+ Installations Across the U.S.

PFAS Removal: GAC

© Calgon Carbon Corporation 2018 | Slide 7

•Influent PFAS: PFOA (920 ng/L), PFOS (800 ng/L) •Influent TOC: 1.42 mg/L •EBCT: 10 minutes

© Calgon Carbon Corporation 2018 | Slide 8

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Simulated Days of Operation PFBA PFHxA PFBS PFOA PFHxS PFOS

Removal of various PFAS using Filtrasorb

Average individual PFAS feed

•Influent PFAS: PFOA, PFOS, PFHxA, PFHxS, PFBA, PFBS (200 ng/L each) •Influent TOC: 0.16 mg/L •EBCT: 10 minutes

© Calgon Carbon Corporation 2018 | Slide 9

•Influent PFAS: PFOA, PFOS, PFHxA, PFHxS, PFBA, PFBS (200 ng/L each) •Influent TOC: 0.16 mg/L •EBCT: 10 minutes

PFAS Removal: IX Resin

© Calgon Carbon Corporation 2018 | Slide 11

Widefield Pilot System Details Pilot System

Media Column Diameter

(in.)

Bed Length

(in.)

Empty Bed

Contact Time (min.)

Bed Volumes Per Hour (BV/hr.)

Flow Rate (gpm )

Linear Velocity (gpm /sf)

#1 Filtrasorb® 400 carbon 4 108 10 6.4 0.58 6.65

Purolite CalRes 120 resin 4 36 2.61 23 0.73 8.37

#2 Dow PSR2-Plus resin 2 24 2 29.4 0.16 7.33

APR-1 resin 2 24 2 29.4 0.16 7.33

#3 Dow CalRes 2109 resin 2 36 1.44 40 0.34 15.5

© Calgon Carbon Corporation 2018 | Slide 12

•Influent Concentrations: (ng/L) PFBS – 50, PFHxS – 100, PFHpA – 14, PFOS – 100, and PFOA-25

Four Resin PFOA+PFOS+PFHpA Breakthrough Curves

© Calgon Carbon Corporation 2018 | Slide 13

Source: CFPUA Workshop: Update on Removal of GenX and Other PFAS – Black & Veatch – Dated 4/5/18

Economic Comparison: GAC vs. IX

© Calgon Carbon Corporation 2018 | Slide 15

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Scenario 1 - GAC Scenario 1 - IX Scenario 2 - GAC Scenario 2 - IX

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Red is Operating

10-Year Life Cycle Cost Comparison

Basis: 1.5 MGD with (2) M10S at 10 min EBCT for GAC and (1) M10S at 2.5 min for IX

Scenario 2

IX is 3% Lower

Scenario 1

GAC is 20% Lower

Final Takeaways

© Calgon Carbon Corporation 2018 | Slide 17

Final Takeaways

• Long and short chain • Service life varies by compound

and background water quality

Both GAC & IX are effective

for removal of PFAS

• Not all media is created equal • Testing is required to accurately

predict service life and determine lowest cost solution

Performance dictates long term costs