Water and wastewater Solutions

Providing an all-round offering of gases, technologies and services

We offer a vast portfolio of technologies and process solutions for the chemical and biological treatment of water and wastewater using carbon dioxide, oxygen and ozone. Our consultants will work with you to define your goals and establish the best-practice methods and solutions that will help you achieve them. You can rely on the far-reaching experience we have gained integrating our products into numerous water treatment applications, systems and processes worldwide. We are also continuing to develop new application technologies and process enhancements to complement our existing portfolio. Continued investment in a number of world-class innovation centres and laboratory facilities means that our specialists can develop and improve existing technologies in close collaboration with our markets, suppliers and customer facing teams. By having this capability to develop and demonstrate solutions aligned to customer needs makes Linde the perfect partner when it comes to finding the best solution for your water treatment needs.

• Environmentally friendly option – recommended as the best practicable environmental option upstream of any biological system
• Safer than aggressive mineral acid systems
• No need for safety showers or bundled storage areas
• No manual handling
• Highly accurate control around neutral pH level
• No unwanted anions produced
• Maintenance of water’s natural alkalinity
• Optimal pH control
• High solubility in water

• Enables high dissolved oxygen concentrations to be maintained
• Reduces odours and prevents anaerobic activity
• Higher oxygen transfer rates
• Improves process control
• Supports existing aeration equipment
• Reduces the impact of evaporative cooling
• Reduces stripping of volatile organic compounds (VOCs)
• Reduces foaming and aerosols
• Lowers sludge yield
• Improves sludge settleability

Ozone

Ozone is an extremely effective gas in the treatment of effluent and wastewaters. It has been shown to break down and remove trace organics, industrial solvents, colour and endocrine-disrupting compounds in water. It is an attractive alternative to harsh and hazardous chemical and mineral treatments.

Ozone can be produced in industrial quantities using an ozone generator that is fed with oxygen. As one of the world’s leading suppliers of industrial gases, we have decades of experience designing and delivering ozone-generating solutions using oxygen at purity levels that are ideal for ozone creation. Our experts will help you work out the supply scheme and supporting gas management services best suited to your volume, purity and budgetary needs – scaling from cylinder bundles through tanks to ECOVAR® on-site supply solutions.

Water and wastewater analysis

To meet your analysis needs, we supply high-purity gases, accurate gas mixtures, precision-engineered gas supply systems and high-quality supporting services for results you can rely on. The ongoing expansion of our portfolio ensures that our mixtures support the latest species and analytical techniques. All of our gases and mixtures come with certificates of analysis to ensure you comply with applicable quality assurance and traceability requirements. Regardless of your analytical requirements, you can always rely on us for customised solutions that meet your individual analysis and calibration challenges.