Environmental Compliance Presentations for Refining, Chemical, Oil & Gas
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Found 8 Results
February 20th

Selecting the Most Cost-Effective Technologies for PFAS Treatment

Steve Woodard - ECT2

Description

Since 2014, The United States Air Force Civil Engineering Center (AFCEC) has been conducting on-going response activities to remediate groundwater impacted by poly- and perfluoroalkyl substances (PFAS) at the former Pease Air Force Base in Portsmouth, New Hampshire. AFCEC’s response included the installation and operation of a full-scale regenerable ion exchange (IX) resin system to remediate groundwater in the source area impacted by years of firefighting training activities. The resin system was selected based on the results of a comprehensive pilot test that evaluated and compared the effectiveness of multiple treatment technologies. In parallel, PFAS contamination was detected at elevated levels in the City of Portsmouth (City) public water supply in 2014. The Haven water supply well, located on the Pease Tradeport, was immediately shut down by the City. The source of PFAS contamination was traced back to the historical use of firefighting foam at the nearby Pease Air Force Base. A SORBIX RePURE regenerable resin system was installed to meet the primary source area remediation objective of treating the groundwater PFOS+PFOA concentration to below the 0.07 µg/l Health Advisory Level. Design, installation and startup of the full-scale SORBIX system was completed from fall 2017 to spring 2018. Based on the successful application of ion exchange resin at the former fire training area, The City decided to run a pilot test to evaluate the effectiveness of single-use IX resin versus bituminous Granular Activated Carbon (GAC). The pilot system was designed and fabricated to pump directly from the Haven Well and facilitated comparison of the two technologies at four different empty bed contact times (EBCTs); 2.5, 5, 7.5 and 10 minutes. The full-scale source area regenerable resin PFAS remediation system has successfully treated groundwater with a total influent average PFAS concentration of 48 µg/l since April 2018. The treated water quality from the SORBIX RePURE resin system has been consistently non-detect for PFOS+PFOA compounds, readily achieving compliance with the 0.07 µg/l HAL target. Operational modifications have been made to address and correct minor challenges with the resin regeneration system, and regenerant recovery and related waste minimization processes have proven highly effective. No PFAS waste has needed to be hauled off site after more than 16 months of operation. The IX resin results were similarly successful in the City’s public water supply pilot test. The influent total PFAS concentration averaged 3.5 µg/l over the course of the year-long evaluation. The IX resin substantially outperformed the GAC on all 12 PFAS that were present at detectable levels. The GAC column was operated until PFOA+PFOS breakthrough reached 0.07 µg/l at the 10-minute EBCT. This occurred at approximately 13,000 bed volumes (BVs), roughly 2.5 months into the test. By contrast, the IX resin effluent from the shortest (2.5-minute) EBCT column remained well below the 0.07 µg/l HAL, even after treating more than 171,000 BVs over a 12-month period. Based on the results of the comparative pilot test, the City selected IX resin for full-scale implementation to remove PFAS from the Haven water supply. The City’s engineer, Weston & Sampson, led the evaluation and attributed the selection of IX resin to the smaller footprint and lower capital and O&M costs associated with the technology. The full-scale system is scheduled to commence operation in 2020.

Date

Thursday, February 20, 2020

Time

12:30PM

Location

Room 414

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February 20th

Lab Test Methodology for PFAS Analysis

Martha Maier - Vista Analytical Lab

Description

Description coming soon.

Date

Thursday, February 20, 2020

Time

11:30AM

Location

Room 414

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February 20th

Growing Regulatory Concerns for $1,000 - Man-made Chemicals widely used in Fire-Fighting Foam: "What are PFAS?"

Tiffany Thomas - EnSafe

Description

Description coming soon.

Date

Thursday, February 20, 2020

Time

10:30AM

Location

Room 414

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February 20th

Preventing Contamination During Field Sampling

Dennis Leeke - Pace Analytical Laboratory

Description

Description coming soon.

Date

Thursday, February 20, 2020

Time

11:00AM

Location

Room 414

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February 20th

You’ve Got PFAS. How to Prepare, Dispose and Respond

Ward Swanson - Barr Engineering

Description

Per- and polyfluoroalkyl substances (PFAS) are emerging contaminants of concern in soil, groundwater and drinking water systems. PFAS releases have the potential to impact water supplies and are a challenge to capture and remove. Due to their chemical properties and widespread use, PFAS typically have multiple source areas and can be ubiquitous in most urban areas. For the oil and gas industry, their primary link and liability to the issue is through the training and use of Aqueous Film-Forming Foam (AFFF) concentrates. Most refinery and fuels industry facilities have used AFFF either in training or for fire suppression for the simple fact that AFFF is extremely effective in putting out difficult fires and as a result it saves lives and prevents large scale fire damage. However, due to this use, most facilities likely have a PFAS signature associated with their AFFF releases that can touch multiple areas of their facility. This presentation will provide information on some tools and approaches from simple to complex on how a facility can identify what PFAS may be associated with their use and where it has migrated based on Barr’s nearly 20 years of PFAS investigation including case studies from refining and industrial sites. This presentation will discuss how to inventory current and legacy supply of AFFF containing PFAS and replacement and disposal options. Barr Engineering Co. will also discuss case studies for assisting terminal and refineries identify risks, respond to agency inquiries and prepare for emergency response situations based on our work which has included installation of emergency water treatment systems. Attendees will leave the short presentation with an understanding of the complexity of the chemistry as well as an idea for approaches to audit current PFAS risk and prepare in the event of an emergency where these chemicals are used.

Date

Thursday, February 20, 2020

Time

1:30PM

Location

Room 414

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Emerging Technology

New Technology with the Potential to eliminate PFAs and PFOAs from water sources

Ray Ozdemir, Jeff St. Amant - Framergy Inc. & Vapor Point, LLC

Description

PFAs and PFOAs have generated significant public and environmental regulatory interest recently. While there do exist current treatment approaches, the options are limited. Vapor Point working with its partner Framergy, Inc have begun exploring the industrial usability of a new material science known as Metal Organic Frameworks. Through this partnership, we’ve performed lab and pilot scale testing of various technologies important to our industry including absorption of light hydrocarbons from atmospheric emissions, separation of light hydrocarbons, capture of H2S from vapor and aqueous phase sources and absorption of contaminates in waste waters. This presentation will review the developments of this new material science for the capture and destruction of PFAs and PFOAs. We will review our current progress as part of our current EPA SBIR Grant, focused on elimination of the contaminates from drinking water supplies.

Date

Thursday, February 20, 2020

Time

3:30PM

Location

Room 414

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February 20th

Innovative Sampling and Analysis Techniques for Stack Sampling of PFAS Compounds in Air Emissions from Stationary Sources

Wesley Fritz - Weston Solutions, Inc.

Description

As air emissions come under heightened focus as a potential PFAS exposure pathway, the need for accurate and defensible PFAS emissions testing data is necessary. This presentation will discuss the derivation of the modified methods developed for the stack emissions sampling and analysis and the results and findings from this work.

Date

Thursday, February 20, 2020

Time

2:30PM

Location

Room 414

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February 20th

A Practitioner’s Guide to PFAS – Lessons learned and best practices to ensure project efficiency and desired outcomes

Tiffany Thomas - EnSafe

Description

Coming soon.

Date

Thursday, February 20, 2020

Time

3:00PM

Location

Room 414

Register Now →

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