Hydramet Pty Ltd

CALCITE

Calcite is a granular calcium based media used in water treatment processes to elevate pH, alkalinity and subsequently the LSI index

Hydramet distributes Calcite to a range of customers across Australia who commonly experience a low ph/alkalinity in their water supply. This method of treatment is particularly suited to applications where the low pH is attributed to high levels of carbon dioxide (as carbonic acid) within the water source.

The practiced method of neutralising pH and raising alkalinity levels is through the use of a calcite contactor. A specific formulation of a calcium carbonate based product (Calcite) is maintained within a purpose-constructed vessel (using up-flow method), or included as an additional layer within a dedicated filter bed (operated in down flow). Typically a contact time of 60-200 seconds is sufficient to treat the incoming water in order to increase alkalinity and to elevate pH.​

A key benefit of this technology is that the pH cannot be elevated past pH8 and as such the water quality in respect of pH will not exceed ADWQG (Australian Drinking Water Quality Guidelines)