Iron & Manganese removal
Next to hardness, the presence of iron is probably the most common water problem faced by consumers and water treatment professionals. The maximum contaminant levels for iron and manganese in potable water are 0.3 milligrams per litre (mg/l) and 0.05 mg/l, respectively. Iron and manganese in excess of the suggested maximum contaminant levels usually results in discoloured water and staining of sanitary ware and clothing. Iron stains a browny, orange colour; Manganese leaves black particles on fixtures and pipe work.
Removing iron and manganese from a water supply is not as straight forward as other treatment methods; treatment is dependent on some or all of the following things:
- Amount and type of iron: There are three main types of iron in water, Ferrous Iron, Ferric Iron and bacterial iron all of which require differing treatment methods to remove them.
- Other chemical and mineral parameters in the water: Sometimes the chemical or mineral composition of the water won’t allow the iron removal system to work effectively so one or more treatment methods may be required in addition to the iron removal unit.
The first step is to have the water tested, from the results we will be able to advise and design a suitable treatment system.
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