- LDO = 80% less maintenance in the paper industry
- Increased efficiency in biogas production
- Measurement of COD in landfill leachate saves money
- Easy and reliable analysis of heavy metals
- Quality assurance in laboratory & process
- water quality monitoring 40 metres below the sea bed
- LANGE cuvette tests used by the professionals for 40 years
- Telemetry for the highest level of plant reliability
- Monitoring biosolids to create cost savings
- The right process measurement technology for N and P
- Aeration control technology
- Kiwa round robin
- Phosphate determination and elimination
LDO = 80% less maintenance in the paper industry
In Europe’s biggest factory for sanitary paper products, belonging to Procter & Gamble, the optical O2 sensor regulates the aeration. The maintenance requirement has been reduced by 80%.
More about this practice report

Increased efficiency in biogas production
Reliable process and laboratory analysis result in stable fermentation processes and economic plant operation.
More about biogas production

Measurement of COD in landfill leachate saves money
Optimised refilling of the activated carbon filters of a biological treatment plant with the help of COD measurement: annual savings of 25,000 €.
More about this practice report

Easy and reliable analysis of heavy metals
Interference ions, colours, turbidity and complexing agents can make the analysis of heavy metals problematic. We found the solution for you.
More about heavy metals
Quality assurance in laboratory & process
The quality of the measurement results depends crucially on the care taken during the individual work steps and the quality assurance procedures that are in place. HACH LANGE explains important AQA steps in a practice report.
More about AQA
Water quality monitoring 40 metres below the sea bed
Natural groundwater collected around the tunnels operated by Eurotunnel is continuously monitored before being pumped to the coast and discharged into the sea. Six multiparameter water quality monitoring systems have been custom-designed by HACH LANGE to ensure that there is no potential for harmful water to enter the pipelines.
More about the Eurotunnel project
LANGE cuvette tests used by the professionals for 40 years
Today LANGE cuvette tests and photometers are indispensable elements of operational analysis. Innovations such as 10-fold rotational measurement have simplified analysis even further and made it more reliable.
More about HACH LANGE reagents
Other Practice Reports:
Telemetry For The Highest Level of Plant Reliability practice report
Monitoring Biosolids To Create Cost Savings practice report
The Right Process Measurement Technology For N and P practice report
Aeration Control Technology
KIWA Round Robin
Determination and Elimination of Phosphates
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