Iron and manganese are natural heavy metals present in air, soil, and water. They are also essential nutrients for humans and animals. However, both insufficient and excessive levels can pose significant health risks.
For this reason, high concentrations of iron or manganese in water are unacceptable. Simply put, it is necessary to monitor drinking water, wastewater, and sewage to verify whether various water parameters meet qualified standards.
Water containing iron and manganese often has a strong metallic odor. Groundwater with iron and manganese is initially clear, but upon exposure to air, it discolors: iron causes an orange-brown tint, while manganese causes black discoloration.
Therefore, the removal of iron and manganese from drinking water is a critical task. After removal, water quality monitors are used for real-time detection of iron and manganese to ensure all drinking water indicators are qualified.
How to Monitor Harmful Manganese and Iron in Drinking Water
The photometric colorimetric method can be used to detect harmful iron and manganese in drinking water. The working principles are as follows:
1.T8000-Fe Online Iron Analyzer
The water sample is pre-treated and injected into the UV digestion reactor by a syringe pump to react with strong acidic reagents, fully dissolving all forms of iron in the water.
The pH of the solution is then adjusted, and a reducing agent is added to convert iron to divalent iron. A specific color reagent is introduced to trigger a color reaction.
Within the measuring range of the analyzer, the degree of color change is **directly proportional** to the total iron concentration in the sample. The total iron content is determined by measuring the color change.
2.T8000-Mn Online Manganese Analyzer
This instrument is used for real-time monitoring of total manganese in water. Its working principle is identical to that of the iron analyzer: the concentration of manganese is determined by measuring the degree of color change.
Iron and manganese are only two of many heavy metal parameters. If other heavy metal indicators exist in water, other specialized online analyzers will be required for monitoring.
