De Nora Unveils Standardized Solutions For PFAS Treatment5/18/2022
Providing simplified solutions for complex problems, De Nora unveils standard designed systems to target per- and poly-fluoroalkyl substances (PFAS) in water treatment. The preconfigured SORB systems employ proven methods of contaminant removal to reduce PFAS in water sources to a non-detectable level, including ion exchange (IX) and granular activated carbon (GAC).
US$6.15B PFAS Remediation Forecast Underpinned By Changing Regulatory Environment5/17/2022
The health risks and contamination associated with per- and polyfluoroalkyl substances (PFAS) are propelling state and federal legislators to crack down on the usage and spread of these “forever” chemicals impacting drinking water supplies.
Taking The "Forever" Out Of PFAS: The Future Of PFAS Remediation5/5/2022
As PFAS treatment technologies continue to emerge, CDM Smith reviews some considerations for the existing options — and introduces a new one.
Hydroponic Native Plants To Detox PFAS-Contaminated Water5/2/2022
They’re the non-stick on Teflon cookware, the stain resistance in Scotchgard, and the suppression factor in firefighting foam, but while the staying power of PFAS chemicals was once revered, it’s now infamous as PFAS substances continue to infiltrate the environment and affect human health.
EPA Delivers On Three Water Commitments In The Agency’s PFAS Strategic Roadmap4/28/2022
Today, the U.S. Environmental Protection Agency (EPA) is announcing three actions to protect communities and the environment from per- and polyfluoroalkyl substances (PFAS) in our nation’s waters.
Synthetic 'Forever Chemicals' Known As PFAS Linked To Liver Damage4/27/2022
Exposure to a class of widely used synthetic chemicals is connected to liver damage according to a new study conducted by researchers from the Keck School of Medicine of USC and published in Environmental Health Perspectives.
Yorba Linda Water District PFAS Treatment Plant Wins Two Awards From American Society Of Civil Engineers4/26/2022
The Orange County Water District (OCWD; the District) and the Yorba Linda Water District (YLWD) won top honors at the 2022 American Society of Civil Engineers Orange County (ASCE OC) awards ceremony.
TIGG Celebrating 45 Years In Business4/22/2022
TIGG is proud to celebrate 45 years in business. In 1977, Don Tiggleback of Pittsburgh, Pennsylvania, was a chemical engineer working for an activated carbon manufacturing company, when he decided to try to package activated carbon media in steel vessels and sell complete pre-engineered, easy to ship, ready to use activated carbon adsorber equipment
Study Finds PFAS At Higher Levels After Wastewater Treatment4/19/2022
A new study has underscored the complexity of treating per- and polyfluoroalkyl substances (PFAS), one of the country’s most prolific and widespread water contaminants, while highlighting the futility in attempting to address the problem at wastewater treatment facilities.
EWG: 'Forever Chemicals' May Taint Nearly 20 Million Cropland Acres4/14/2022
The toxic “forever chemicals” known as PFAS could be contaminating nearly 20 million acres of U.S. cropland, according to an EWG estimate.
LC-MS/MS Analysis Of PFAS Extractables In Polyethersulfone (PES) Syringe Filters Using EPA 537.15/18/2022
A key consideration for any PFAS method is to avoid contamination that can impact the accuracy of data, including those coming from sample preparation techniques such as filtration.
Optimizing PFAS Removal In The Presence Of Other Contaminants1/19/2022
Here are some considerations that can help water treatment plant (WTP) supervisors, operators, and their consulting engineers achieve their PFAS removal goals more efficiently and cost effectively despite the added challenges.
PFAS Testing Program12/14/2021
Every water source has different underlying chemistry. Furthermore, there are over 4,500 compounds currently classified as PFAS compounds, and each contaminated water source can have a different makeup of PFAS in it. By testing at multiple stages and scales, we are able to select and optimize treatment to fit the chemistry of the water rather than employing a “one size fits all” mentality. The treatment is customized to the water to reduce energy, breakthrough, waste products, and operation and maintenance costs.
AOS Advanced Oxidation System12/14/2021
Highly effective against bacteria and viruses, the Advanced Oxidation System (AOS) is also well-suited for the decontamination of hard-to-treat organic contaminants such as pharmaceuticals and other micropollutants The AOS can be configured to deliver optimized performance for most water or wastewater treatment applications.
Aqueous Electrostatic Concentrator12/14/2021
The Aqueous Electrostatic Concentrator's (AEC) modular design provides a small footprint, and low energy consumption, that can be skidded, trailer mounted or custom configured to fit into existing spaces. Unlike traditional removal technologies, this non-carbon based treatment option is highly tolerant of TSS and TDS
Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals that have sometimes been called “forever chemicals” for their persistent nature in the environment, difficulty to remove through treatment, and bioaccumulation in humans and animals. Two types of PFAS — perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) — have been identified as toxic by the U.S. EPA, while many more of the nearly 5,000 PFAS formulas are either suspected contaminants or have yet to be studied thoroughly. Originally developed for non-stick coatings, stain-repellant fabric treatments, and firefighting foams, PFAS are especially prevalent near former areas of high use — such as manufacturing facilities, airports, military bases, or the sites of large fires — yet widely problematic.
In February 2020, the EPA issued preliminary determinations to regulate PFOA and PFOS under the Safe Drinking Water Act (SDWA) and establish the first national PFAS monitoring and treatment requirements for drinking water utilities (see EPA’s PFAS Action Plan). Numerous U.S. states, however, have already developed rules and guidance for PFAS.
This solution center addresses the topics and questions most important to drinking water professionals as the PFAS issue evolves — How does PFAS get into drinking water? How do utilities monitor for PFAS? What treatment technologies remove PFAS? What are the regulatory limits for PFAS? — with answers provided through breaking news stories, editorial insight, and technical discussions.