Water Treatment
Decarbonisation of wastewater treatment plants
Support future carbon savings with natural wastewater solutions that save energy, carbon emissions and costs. The intelligent use of O₂ and CO₂ plays a vital role in working towards a sustainable future for industries that deal with chemicals, petrochemical refineries and pulp and paper. Unlike conventional chemicals, the use of gases in water purification processes does not release additional emissions and waste.
Designed for a Sustainable Future
Get Ahead
Water companies that produce recycled or drinking water show an increasing interest in using CO₂ to reduce their carbon footprint. Water regulations are also anticipated to push industries towards using Ozone to treat micropollutants, bulk sludge and hard Chemical Oxygen Demand (COD) in the future.
Safety
Gases remove the need for strong acids to be used, creating a safer environment and improving the ease of handling.
Specific Expertise
Experienced process engineers are ready to assist customers with bespoke gas technologies from design to implementation, and carry out extensive follow-up audits and campaigns to optimise customer operations in a sustainable way.
Digitalisation
Digitalise company assets and receive remote assistance through Water 4.0.
Wastewater treatment
If you are looking for an alternative to waste water treatment chemicals, high purity Oxygen increases the capacity of wastewater treatment plants without needing to increase its size. Biological wastewater treatment intensifies aerobic wastewater treatment due to lower energy consumption of the equipment and the absence of stripping phenomena. It also produces almost no GreenHouse Gases (GHGs), Volatile Organic Compounds (VOCs) and odours.
Energy Saving
Energy efficiency of oxygen injection system
High ratio of kg of O₂ injected per kWh of dynamic oxy-injector power consumption.
Carbon Saving
Measurement of GreenHouse Gases (GHGs) from exhaust gasesRemoving excess gases from air injection is an easy way to reduce VOC emissions, and pure Oxygen removes competition from Air-Nitrogen for solubility in liquid.
Peace of Mind
Optimum process control to meet stringent water permit limits with peace of mind- Low maintenance with only pumps or gear motors
- Stable operations throughout the year (regardless of season)
- Fully automated and continuous process
- No backup fan needed
- High throughput without requiring large capital investments
pH control
CO₂ is a simple and economical alternative to neutralising alkaline water streams with strong mineral acids. This pH neutralisation method reduces impact on the environment because it does not generate secondary pollution. It permanently retains carbon in the form of hydrogen carbonate, which is environmentally neutral.
Environmentally Friendly
pH regulation without harmful emissions- No harmful emissions such as chlorides or sulfates
- A more gentle method of pH reduction (no risk of overshooting)
- Low risk of corrosion and increase in lifespan of plant equipment
Peace of Mind
Fully automated pH control system from supply to CO₂ injection- Unlike traditional mineral acid treatments, there are no shower requirements nor carcinogenic fumes
- The cost of CO₂ is competitive against mineral acids (Sulfuric and Hydrocholoric Acids)
- Reduce overhead operating costs due to chemical and non-pumping operations
Our recommended solutions for your water treatment
Working with Air Liquide means benefitting from expert support that can offer a whole range of services, and our solutions help you to accurately measure TOC to determine your water purification levels.
Related Gases
Related Equipment
Nexelia™ for Water Treatment is a comprehensive gas solution to boost your plant capacity, optimise operating costs, or resolve various foam and odour issues.
A powerful and compact floating oxygen-transfer system, the OXY INJECTOR-TURBOXAL delivers high performance oxygenation of wastewater in biological basins and lagoons.
A dynamic gas-injection device, the OXY INJECTOR-VENTOXAL system significantly increases the mass-transfer rate to reach high oxygen dissolution, and it integrates seamlessly with all types of wastewater basins.
A cost-effective system, the INJECTOR-POROXAL treats wastewater by injecting oxygen (O₂) into deep static biological basins (> 5m). It’s also well suited to dissolve CO₂ for pH control.
Why Choose Us
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Industry Leader
We are a global leader in gases, technologies and services for Industry and Health. -
Reliability
Our solutions are reliable, reproducible and in compliance with stringent and ever-evolving regulations. -
Expertise
Leverage our global network of industry experts tailored to your unique challenges. -
One-Stop Solution Provider
Access a comprehensive suite of products, supply modes, and services designed for your specific requirements. -
Extensive Infrastructure Network
Benefit from our robust production and filling infrastructure, including extensive pipeline networks. -
Focus on Quality
Expect nothing less than the highest standards in process and product quality. -
Sustainability
Embrace our solutions that support your highest performance while minimising environmental impact.