The industrial sized MG filters are designed to complement the industrial iron removal filters and can be tailored to suit pressurised or open ended systems as required. Normally installed as second stage polishing filters they are specified based on site conditions and are often smaller than the preceding first stage iron removal filter.
MG filters use a manganese dioxide coated media. Originally this was a product called Manganese Greensand hence the ‘MG’ prefix. The current media is a direct equivalent and works by way of oxidation reduction. This process is finite and the media must be ‘regenerated’ once a predetermined volume of water has been treated.
The regenerant used is typically potassium permanganate, but where site conditions allow, sodium hypochlorite can also be used. The regeneration process is fully automatic.
The level of Manganese and Iron in the water being treated has a direct influence on service flow rate. The higher the values the lower the flow rate. Below are listed the very maximum service flows for a given filter sizes.