Process to Separate Per- and Polyfluoroalkyl Substances from Water Using Colloidal Gas Aphrons

TRRP Training: 2022 Program

presented by: GSI Environmetal Inc.

Texas Risk Reduction Program regulations (TRRP; 30 TAC 350) establish consistent risk-based protocols for assessment and response to soil, groundwater, or surface water impacts associated with environmental releases of regulated wastes or substances.

Presented by GSI Environmental Inc., this popular and informative training series is a must for professionals who need a working understanding of TRRP and those needing to stay up-to-date with the latest TCEQ TRRP guidance and policies.

TRRP Training Course (2 Days): Provides an overview of the TRRP framework and step-by-step training on property assessment and response action procedures established under the TRRP rule

Attendees will become acquainted with rules, key guidance and policies covering affected property assessments, protective concentration levels, and response actions. The course material presents strategies for efficient project management in compliance with TRRP and explains the various report forms adopted by TCEQ.

TAEP image

Sponsored by: ​
Texas Association of Environmental Professionals (TAEP) TAEP is the premier organization for environmental professionals in the State of Texas. The goals of TAEP include the advancement of the environmental profession and the establishment of a forum to discuss important environmental issues. TAEP members receive a 10% discount. Please call 713.522.6300 for the code.

Dates and Location

Dates

June 14th and 15th, 2022

Location

Crowne Plaza River Oaks 2712 SW Freeway Houston, Texas 77098 713.523.8448 http://www.crowneplaza.com/

Price and Registration

Early-Bird Price

(Paid by May 1, 2022)
$XXX

Standard Price

(Paid after May 1, 2022)
$XXX

TAEP Membership Price

$XXX

Government Price

$XXX
Lodging and meals are not
included in course cost
REGISTER HERE
Authors: P. R. Kulkarni, D. Aranzales, H. Javed, T. M. Holsen, N. W. Johnson, S. D. Richardson, S. Mededovic Thagard, C. J. Newell.

Published: 2022

Abstract

Current ex situ per- and polyfluoroalkyl substances (PFAS) remediation strategies often involve the treatment of large volumes of PFAS-impacted water via separation processes to concentrate PFAS for subsequent treatment or disposal. This study presents a new method for concentrating PFAS that relies on colloidal gas aphrons (CGAs), unusual microstructures composed of water, multilayers of surfactants, and air, that can be used for separation via electrostatic and hydrophobic sorption. This study successfully demonstrates the efficacy of CGAs in removing ionic dyes (as PFAS surrogates) (81%–91%), as well as ultra-short and short-chain PFAS (60%–90%) and perfluorooctanoic acid (PFOA, 88%) within 10 min. However, poor removal of perfluorooctane sulfonic acid (PFOS, 0%) was observed within 10 min of treatment. Compared to bubbling with nitrogen alone, and nitrogen with cetrimonium bromide (CTAB) in bulk solution, CGAs demonstrate significantly higher removal of perfluorobutanoic acid, a short-chain PFAS (0% for N2, 11% for N2 + CTAB, and 90% for CGAs). These results suggest that CGAs may serve as a promising new separation and concentration technology for removing a suite of PFAS from water, particularly for difficult to remove short-chained compounds.