Analyzers, in-situ sensorsand samplers

Sum parameters

17

Metals and other parameters of water treatment

Aluminum Chromate Iron Hardness

Silica Sodium

Liquiline System CA80

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CA76NA

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Metal content and other parameters are mainly measured in process, drinking and ultra-pure water treatment to ensure a good water quality. For users of process water and operators of water, wastewater and steam generation plants, it is very important to know which substances are dissolved or suspended in the water.

Aluminum, iron and hardness measurement with Liquiline System CA80

Continuous monitoring as key to safe water

Liquiline System analyzers ensure compliance with the with the strict limits for drinking water, bottled water and process water. Thanks to their standardized measuring me thods, they deliver measured values that are consistently comparable to lab measurements. • Iron: standardized ferrozine method • Aluminum: colorimetric pyrocatechol violet method according to DIN ISO 10566 • Hardness: phthalein violet method The analyzers feature detailed logbooks to provide continuous documentation of the measured values to the authorities Typical applications • Liquiline System CA80FE supports optimization of iron removal since it enables optimum control of the air blowers. • Liquiline System CA80AL optimizes aluminum dosing: as much as necessary to safely remove suspended particles but avoid high aluminum concentrations. • Liquiline System CA80HA supports improvement of softening processes in waterworks and informs about the hardness of drinking water. Measuring ranges • Aluminum: 15 to 1000 µg/l (ppb) Al • Iron: 0.05 to 2.5 mg/l (ppm) Fe 0.1 to 5 mg/l (ppm) Fe • Hardness: 0 to 80 mg/l (ppm) CaCO 3

Iron, aluminum and hardness are important chemical indicators of the water quality: • Aluminum is naturally present in low levels in groundwater. If it, however, occurs in concentrations that are harmful to human health but even very low concentrations of iron suffice to impair the water taste and color. • Water hardness has an impact on the product quality, for example in the beverage or paper industry. higher concentrations, it is harmful to human health. • Iron only rarely occurs in

Liquiline System CA80FE

Application example Mineral water monitoring, limit value 30 µg/l iron

µg/l iron

Date/time