// DEVELOPED IN AUSTRALIA
The LEEF System® was initially developed in Australia by the Water and Carbon Group (WCG) to address PFAS contamination in landfill leachate. This leachate showed high concentrations of a range of contaminants that rendered conventional removal methods such as GAC, resins, RO and EC ineffective or cost inhibitive.
The proprietary technology that led to the creation of The LEEF System® was developed with WCG’s ethos at heart, to create leading environmental solutions to complex problems that deliver lasting, positive outcomes for people and the environment.
The whole concept of LEEF System® is to enable a cost-effective treatment method that reduces the production of waste at a lower energy consumption rate than other methods.
WCG has now partnered with trusted US firm Leachate Management Specialists (LMS) to bring this exciting PFAS removal solution to the United States market.
// WHY CHOOSE LEEF System®
How it works
The technology combines a unique (patent pending), multi-staged foam fractionation and enclosed solar distilling system to create a PFAS removal solution centred around harnessing air, gravity and the sun.
The key to the LEEF System® solution is that per- and poly-fluoroalkyl substances (PFAS) are surfactants that can produce a stable foam when mixed with air and water. This characteristic is the reason PFAS are effective as a firefighting foam to suppress certain types of fire.
The LEEF System® takes advantage of the way PFAS coats air bubbles in a process called foam fractionation. By adding certain mixtures of gas in a controlled setting, PFAS compounds will attach to bubbles and rise to the top where they can be skimmed off and separated from the wastewater.
By utilizing foam fractionation, the LEEF System® has been shown to remove up to 100% of long chain PFAS compounds. The system typically does not require pre-treatment for direct PFAS removal, while zero chemicals or consumables are used throughout the process, resulting in a simple-to-operate, low-maintenance system.
Another advantage of the LEEF System® is its modular design, which can be easily scaled and customized to meet any volume requirements.
Water and Carbon Group
Leachate Management Specialists
// WHY CHOOSE LEEF System®
The LEEF System® Benefits
- Direct PFAS removal without pre-treatment
- Zero chemicals or consumables are used in the treatment process.
- Removal of target PFAS compounds to below the analytical limit of detection
- Less than 1% waste stream consistently produced, with further reductions possible using solar distillation.
- Treat small to large flows (7500gpd – 250,000gpd+)
- Cost-efficient with low energy and operational requirements
- Multiple treatment capacities
- Modular, easy to scale and customize
- Simple-to-operate, low-maintenance system
LEEF System® – PFAS Removal (PFOA/PFOS/PFHxS)
Note: Where the number in the graph above has been reported by a laboratory as LoR, it is assumed the combined sum is the LoR.
// TRIAL at your site
Testing and Performance
The LEEF System® has undergone stringent testing on a wide range of PFAS waste streams and is proven to be especially effective at targeting PFAS-impacted materials with high levels of co-contamination.
The proprietary LEEF System® remove up to 100% of targeted PFAS contaminants in a short operating time, treating a wastewater exceeding discharge limits (treated PFAS less than LoD). The final extracted waste stream volume is very low.
The modular system uses minimal energy and is scalable to treat any volume from 7500gpd to 250,000gpd+. Zero chemicals or consumables are used in the treatment process.
// PFAS Extraction
The LEEF System®
The LEEF System® is a unique, multi-staged treatment system designed to efficiently extract PFAS contaminants from complex waste streams using minimal energy, no chemicals, or consumables.
It has been specifically engineered to achieve 99th percentile PFAS removal, reduce high energy consumption and deliver <1% waste streams while utilizing renewable and naturally occurring resources.