Water & Leachates treatment
Our company provides mobile solutions for temporary or permanent treatment of your effluents
What is Reverse Osmosis Treatment?
The red line represents the filtration membrane. Green arrows indicate the elements that pass through the membrane, while orange arrows represent the elements retained. Filtration selectivity increases from microfiltration to reverse osmosis. Source : Watura.fr
Reverse osmosis is a filtration process that uses a semi-permeable membrane to separate water molecules from other dissolved substances. This process is capable of removing more than 90% of water contaminants.
Reverse osmosis can be used to treat various types of water, including seawater and raw water, making it a flexible option for both industrial and domestic applications.
Reverse osmosis treatment can help reduce waste by minimizing the volume of discharged water and eliminating the need for chemical products in the water-treatment process.
Leachate treatment
Leachate Treatment by Reverse Osmosis
Leachate treatment is a major challenge for landfill sites and industrial operators. With our reverse osmosis technology and fleet of mobile units, we provide high-performance, flexible solutions tailored to the constraints of each site.
Our expertise ensures effective pollutant removal, including PFAS, to meet the strictest regulatory requirements.
Why treat leachates?
Leachates from waste contain high levels of organic matter, salts, metals, ammonium, micropollutants, and now PFAS. Managing them is an essential environmental challenge to prevent soil and water contamination.
Our technology ensures long-term compliance while optimising treatment costs.
The most effective technology for leachates
Reverse osmosis is currently the most efficient method for leachate treatment. It enables:
very high pollutant removal
treatment of PFAS and micropollutants
stable and reliable performance
discharge compliant with environmental standards where permitted
PFAS treatment in leachates
PFAS are a major challenge for operators: persistent pollutants that are difficult to remove.
Our reverse osmosis technology allows:
significant PFAS reduction
safe and secure treatment
cost control through mobile units
enhanced regulatory compliance
We support clients on the most sensitive sites.
Reverse osmosis: allowing discharge into the environment
Reverse osmosis provides such high performance that, in many cases, the permeate can be directly discharged into the environment, in compliance with regulatory requirements set by the Prefectoral Decree (Arrêté Préfectoral) and under local authorities supervision.
Key advantages:
highly purified permeate
compliance with regulatory thresholds (COD, BOD₅, ammonium, metals, PFAS…)
significant reduction of salts and micropollutants
simplified operation
This allows operators to manage leachates in a sustainable, controlled, and cost-effective way.
Odour management and H₂S reduction
In addition to pollutant treatment, our solutions also address odour nuisances, particularly H₂S (hydrogen sulfide).
Using our units and customised pre/post-treatment processes, we effectively reduce odour emissions around facilities, improving operational conditions and the site environment.
Operators benefit from a complete solution: odour reduction + advanced leachate purification.
Mobile treatment units: flexibility and responsiveness
Our mobile units provide:
rapid installation
operation on any type of site
temporary or permanent solution
adaptability to flow and load variations
customised treatment according to your constraints
This flexibility is a major advantage compared to fixed installations.
Regulatory compliance
We support our clients with:
permeate qualification
comparison with Prefectoral Decree thresholds
preparation of supporting documentation for regulated discharge
Why choose us?
The largest fleet in France of reverse osmosis treatment units, with capacities ranging from
240 to 300 m³ of incoming water.
Optimal recovery rate of up to 90% (depending on incoming water quality)
Comprehensive management with guaranteed results, including feasibility studies, installation, operation, monitoring, and follow-up.
Our maritime containers can be deployed anywhere in the world, even in the most remote locations, thanks to operation via generator or public power supply.
All our units are installed with containment systems and equipped with 24/7 monitoring programs.
Our company is recognized as a major player in this field, with an average of 150,000 m³ treated per year.
Frequently asked questions
🔎What is leachate?
It is a polluted liquid formed when water passes through waste or materials. It contains contaminants that require treatment.
🔎Why use reverse osmosis for leachates?
Because it is the most effective technology for retaining salts, organic matter, ammonium, metals, and PFAS.
🔎Can you treat PFAS?
Yes. Using reverse osmosis, PFAS present in leachates are completely retained by the membranes. The permeate produced is PFAS-free, while the PFAS are concentrated in the concentrate, making their management and external disposal through specialized channels easier.
🔎What capacity can you treat?
Our units can treat 160 to 300 m³ per day, depending on requirements.
🔎Do you offer temporary solutions?
Yes, our mobile units can be installed quickly and provide either temporary or permanent treatment.
Project highlights
Contact / Request for quote or information
Need effective and compliant leachate treatment?
Le Floch Dépollution puts its mobile units and field expertise at your service to respond quickly and ensure reliable, safe, and regulation-compliant treatment tailored to your specific requirements.
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