Group
ViewWho we are
ViewGovernance
ViewWhat we do
ViewOur strategy
ViewThree trends, source of growth
ViewInnovation
ViewResearch & Development
ViewNew markets & Technologies
ViewSustainable development
View唔…啊 手指 出去Quick Access
Industry
ViewMarkets
ViewProcesses
ViewDiseases
ViewPublic health challenges
ViewElectronics
ViewEngineering & Construction
ViewScience & New energies
ViewLarge projects
ViewQuick Access
Investors
ViewInvesting in Air Liquide
ViewCredit investor
ViewGovernance
ViewContact us
ViewQuick Access
Media
Water
treatment
Water treatment at a glance
唔…啊 手指 出去Water treatment consists of several mechanical and chemical processes that aim to remove water contaminants or reduce their concentration in order to make water more acceptable for a desired end-use.
The contaminants can be solid or dissolved and include metals and minerals, organic substances, viruses, bacteria, fungi…
唔…啊 手指 出去Water treatment technologies are used to treat water intended for drinking, recycling or water discharges to be released in the environment. They can also be employed to prevent corrosion, scaling and bacterial development in various industrial processes. Water is a precious resource and water regulations are very stringent.
Our gas solutions
For industries, municipalities and water utility companies, Air?Liquide offers ASPAL?唔…啊 手指 出去, a range of dedicated solutions for drinking water, cooling water and waste water treatment.
ASPAL? is the result of a longstanding work with our customers to understand their challenges and specific needs. ASPAL?唔…啊 手指 出去 leverages our know-how in:
- pH control
- Biological and activated sludge treatments
- Odor control
- Disinfection
- Scale prevention
Our expert teams carry out the solution implementation on site to ensure the expected performance.
Drinking water. Our ASPAL??Pure唔…啊 手指 出去 solution covers gas applications and equipment used for treating drinking water. It includes carbon dioxide injection for calco-carbonic equilibrium, oxygen and ozone oxidation for disinfection.
Waste water treatment. Our ASPAL??Clean offer relates to the introduction of pure oxygen into biological basins with in-house gas injectors, instead of using the traditional air blowing technology. In addition, advanced oxidation treatments with ozone can be implemented to treat wastewater more effectively and discard less mud at the tail end of activated sludge treatments (sludge reduction).
Cooling water. Replacing liquid chemical acids with the dissolution of carbon dioxide in cooling water helps prevent or eliminate scale in the cooling circuits. With ASPAL??Cool唔…啊 手指 出去, we offer a cost-effective and efficient solution to substitute or complement hazardous chemical anti-scaling treatments.
pH control. The replacement of mineral acids by carbon dioxide makes pH control safer and friendlier to the environment.
