DexSorb® from Circul-air extractor wastewater filter

Press Release:

Introducing DEXSORB® from Circul-Air: The Next-Level Wastewater Filtration System for Fire Departments

We’re thrilled to launch a game-changing solution built specifically for fire departments:
DEXSORB® by Circul-Air — a powerful PFAS filtration system designed for PPE washer-extractor wastewater.

What is DEXSORB®?

DEXSORB® is a dedicated wastewater filtration system designed to capture and remove PFAS and other
high-risk contaminants before they enter sewer or septic systems. This is more than a filter—it’s a complete,
compliant solution that meets evolving regulations while protecting firefighters and their communities.

📸 Product Snapshot

CACDS DexSorb System

Why It Matters

  • PFAS is under intense regulatory scrutiny – Local and federal standards are tightening.
  • Fire departments need hassle-free compliance – No in-house experts required.
  • DEXSORB® delivers – Reliable, simple, and sustainable PFAS removal with full-service support.

Key Benefits

  • Fire Station-Ready: Handles oils, grease, TOC, TDS, and FOG from extractor discharge.
  • Compact & Scalable: Fits tight station spaces and scales with demand.
  • Subscription Simplicity: Circul-Air manages replacement, disposal, and documentation.
  • Certified Safe: NSF/ANSI 61 certified.

Pricing Snapshot & Inclusions

Product

Price (USD)

Includes

Base DEXSORB® System

Contact CAC

– One 8” x 35” filtration vessel
– 18 lbs DEXSORB media for wastewater treatment system commissioning, with spent media handling,
– Pre-filters and fittings for assembly

Replacement Filtration Media

Contact CAC

– 18 lbs DEXSORB® media
– Spent media removal & disposal

 

  

Analytical Option

Available

Quarterly testing by of PFAS samples for the first year.

Subscription options available for scheduled service and compliance documentation.

Shipping, Installation & Site Considerations

Shipping
System ships unassembled (vessel, media, and components) to the fire department site.
Shipping costs are location-based and not included in base pricing.

Project Overview
A project manager should be assigned to coordinate pre-site evaluation (recommended before purchase) and manage installation logistics.
Installation & project services can be quoted separately.

Installation
Site Preparation is not included: Department, Distributor, or Contractor will be responsible for site preparation and system assembly.

Designed for ease — installation should be handled by a licensed plumber or public works department.

Additional Requirements
Most installations will also require a CACDT drain trough system with sump pump to manage water flow and collection.

Cleaner water. Safer stations. Simplified compliance—with DEXSORB®.

cacds dexsorb qr code

Performance System Claims

Based on PFAS levels in Table 2 and the PFAS treatment target, the full-scale system design is shown in Figure 2 and Table 3. The design uses one vessel in PBF configuration, containing 18 lbs of DEXSORB granules, to provide a system EBCT of 1.4 minutes. Backwash capabilities are incorporated into the vessel. The system is projected to remove EPA6 PFAS for a capacity of 6,240 gallons at the 3-gpm flow rate. This translates to 52 weeks of operation at the peak flow rate of 120 gallons per week (to be confirmed) before media changeout is needed.

Extractor waste water does not provide the needed 15 psi pressure to support the DEXSORB system operation a Circul-Air’s Trough system will be required if this solution is not already resolved.

Table 1 specs and requirements

Parameters                                                    Unit

Flow Rate

3

gpm

Empty Bed Contact Time

1.4

min

Hydraulic Loading Rate

8.6

gpm/ft2

Vessel ID

8

inch

Vessel Height

35

inch

Vessel Cross-section Area

0.35

ft2

Packed Bed Depth

1.6

ft

DEXSORB Loading

18

pounds

Empty Space Ratio

45

%

Estimated Pressure Drop

<15

psi

Figure 2

Figure 2 setup

Test Data

Table 2. PFAS Characterization for Gear Cleaning Wastewater (sampled in May 2024)

Compound

Concentration (ppt)

Sample 1

Sample 2

Filtered Sample

1

Filtered Sample

2

PFBA

894.9

247.6

462.3

122.9

PFPeA

21.9

59.1

59.2

29.3

PFHxA

220.7

672.8

767.7

336

PFHpA

588.6

140.1

122.1

40.3

PFOA

706.7

72.1

37.1

34.1

PFNA

455.1

29.6

5.7

5

PFDA

250

19.3

9.7

12.3

PFBS

1548.1

566.6

549.7

313.7

PFPeS

5.1

ND

ND

ND

PFHxS

804.8

43.3

2.2

3.7

PFHpS

24.2

ND

ND

ND

PFOS

455.6

20.8

6.2

7.3

GenX

495.3

18

ND

ND

4:2 FTS

ND

8

ND

ND

6:2 FTS

16.7

36.8

20.3

13.5

8:2 FTS

ND

ND

4.6

8.8

5:3 FTCA

3.1

4.4

4.6

4.3

Total

6490.8

1938.5

2051.4

931.2