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| For iron and manganese removal from potable water. Generally used in
admixture with sand, iron and manganese removal is achieved simultaneously during
filtration. |
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| Used either alone or in multimedia filters in conjunction with sand and
anthracite. Allows the removal of fine particulates which may not be retained by sand
filters. |
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Used as a support beneath filtration garnet to prevent migration
through the support layers and to ensure the
stability of the bed. |
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| Used in multi-media, anthracite, sand, garnet filters or in dual media
sand, anthracite filters. The addition of a layer of anthracite to a sand filter increases
filter run times. Anthracite is available in various grades including support grades for
100% anthracite filters. |
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| The standard filter medium for water treatment. High silica sand is
available in several grades for both rapid gravity and slow sand filters. |
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| Used beneath the filtration media as a support. Support gravels are
available in various grades. |
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| Microcrystalline calcium carbonate and semi-calcined dolomite for pH
corrections and re-mineralisation. |
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| Coconut shell and coal based carbons for dechlorination, taste and
odour removal and organics removal. |
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| A specially produced material which withstands process liquors of pH 12
and above which would dissolve silica sand. |
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| A range of products for the removal of soluble trace metals from
potable and waste waters. |
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