Corporate Address:
241 Francis Ave
Mansfield, MA
United States
Aclarity’s mission is to destroy PFAS forever. The current PFAS removal and disposal methods separate and concentrate PFAS, but do not sufficiently remove PFAS from our environment and therefore do not fully address the problem. The status quo management of PFAS is failing the public and cannot prevail. Our Aclarity electrochemical oxidation system destroys PFAS chemicals in water and liquid waste. We pass concentrated PFAS streams, like raw landfill leachate, through our system and destroy PFAS compounds to greater than 99%.
Elisabeth Christ
Application Engineer at Aclarity
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
Elisabeth Christ – Aclarity
With recent action by the USEPA and individual states, stricter regulation of poly- and perfluorinated alkyl substances (PFAS) in water and solids wastes will change the way that the water industry has dealt with organic contaminants in the past. Typically, regulated organic contaminants have been controlled through the use of oxidation, e.g., ozonation or chlorination, or by adsorption onto activated carbon, followed by high temperature regeneration. Because of the chemical and thermal stability of PFAS compounds, however, these approaches will not work. It has been shown that even the strongest oxidant commonly used in water treatment, hydroxyl radicals, cannot degrade these compounds. It has also been shown that some PFAS is not destroyed by thermal regeneration of activated carbon, even with an afterburner. Several states have banned the incineration of PFAS-containing wastes.These circumstances have led the industry to search for technologies capable of destroying PFAS by breaking carbon-fluorine bonds, among the strongest known in organic chemistry. Among these destructive technologies are supercritical water oxidation (SCWO), hydrothermal alkaline treatment (HALT), plasma reactors, and electrochemical oxidation (EOx).To date, these technologies have been studied at relatively small scales, and are not economic for treating the millions of gallons per day flows for water treatment plants. However, when coupled with concentration technologies such as high pressure membranes, regenerable ion exchange, or foam fractionation, the technologies can be viable for use in municipal water treatment.This presentation will show results from bench and pilot scale testing of Aclarity’s EOx system treating multiple high strength wastes including reverse osmosis brine, raw landfill leachate, ion exchange brines and foam fractionate. In addition to PFAS destruction data, transformation byproducts will be addressed. Economic data demonstrating viability at larger scales will also be presented.
1-Minute Introductory Video
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
Information Request
I2
EPA 316 (b) | Leachate Disposal | PFAS | Silica |
Feb 15 (10 am – 12 pm)
Elisabeth Christ (CHAIR)
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
PFAS Destruction in High Strength Waste Streams: A Case Study on Low Energy EOx
Elisabeth Christ – Aclarity
With recent action by the USEPA and individual states, stricter regulation of poly- and perfluorinated alkyl substances (PFAS) in water and solids wastes will change the way that the water industry has dealt with organic contaminants in the past. Typically, regulated organic contaminants have been controlled through the use of oxidation, e.g., ozonation or chlorination, or by adsorption onto activated carbon, followed by high temperature regeneration. Because of the chemical and thermal stability of PFAS compounds, however, these approaches will not work. It has been shown that even the strongest oxidant commonly used in water treatment, hydroxyl radicals, cannot degrade these compounds. It has also been shown that some PFAS is not destroyed by thermal regeneration of activated carbon, even with an afterburner. Several states have banned the incineration of PFAS-containing wastes.These circumstances have led the industry to search for technologies capable of destroying PFAS by breaking carbon-fluorine bonds, among the strongest known in organic chemistry. Among these destructive technologies are supercritical water oxidation (SCWO), hydrothermal alkaline treatment (HALT), plasma reactors, and electrochemical oxidation (EOx).To date, these technologies have been studied at relatively small scales, and are not economic for treating the millions of gallons per day flows for water treatment plants. However, when coupled with concentration technologies such as high pressure membranes, regenerable ion exchange, or foam fractionation, the technologies can be viable for use in municipal water treatment.This presentation will show results from bench and pilot scale testing of Aclarity’s EOx system treating multiple high strength wastes including reverse osmosis brine, raw landfill leachate, ion exchange brines and foam fractionate. In addition to PFAS destruction data, transformation byproducts will be addressed. Economic data demonstrating viability at larger scales will also be presented.
Evgeniya Hristova
Advanced Solidifiers for Oil Spill Containment
Advanced Solidifiers for Oil Spill Containment
Evgeniya Hristova – Natural Resources Canada
Andrew Xie
Solutions for Online Silica Monitoring in Power Plants and Ultrapure Water Facilities
Solutions for online silica monitoring in Power Plants and Ultrapure Water Facilities
Andrew Xie – Thermo Fisher Scientific
Silica in boiler feedwater and steam could cause silica deposition on power plant turbines and heat exchange tubes, which leads to inefficiencies, equipment failure and increased maintenance. Monitoring soluble reactive silica at ppb level in ultrapure water with an online analyzer allow users to detect excess silica and enable water treatment operations to remove silica through prior to boiler and turbine. Online Silica analyzers are widely used for monitoring boiler feedwater and ultrapure water in various industries, such as power plants, oil refineries, and manufacturing plants. Especially, Peaker power plants, which turns on and off regularly on demand, poses significant challenges to online silica analysis due to their intermittent flow, particles in sample, analysis and reagent stability requirements.Thermo Fisher Scientific developed the Orion 8030cX Silica Analyzer to solve silica monitoring challenges to prevent silica built-up, improve energy efficiency and maximize uptime. It offers superior accuracy, reliable operation, automated features and intuitive user interface to protect valuable assets and ensure safe power generation. It combines a patented fluid delivery system with smart flow sensing and auto-cleaning to resolve challenges related to intermittent flow and particles in sample. The optimized reagent chemistry minimizes common interferences from phosphate and lasts longer. Consuming only about 200 µL of reagent per test, the new analyzer can continuously monitor unattended for up to 100 days while reducing chemical waste. The 8030cX Silica Analyzer features state-of-the-art automation (such as automated calibration, validation and cleaning), advanced intuitive software, intelligent system diagnostics and alert notifications that reduce manual intervention and maintenance.