Jord designed and fabricated its first kiln way back in 1982, to calcine uranium yellow cake at the Olympic Dam mine in South Australia.  This was a multiple hearth design.

Jord expertise with this technology, acquired over a range of ores, has proven particularly useful in the regeneration of granular activated carbon (GAC).  GAC is a broad spectrum absorption agent that removes plant pigments, melanoidins, caramels and odours.  It has been widely adopted in the sugar industry, where it is used in the decolourisation of sugar.

A typical GAC system works as follows:

Raw sugar liquor passes through either fixed or pulse-bed absorption columns packed with GAC, producing a fine, clear liquor ready for crystallisation into white sugar.

Periodically, the GAC is withdrawn from the columns and regenerated in a 950°C multiple hearth furnace ('MHF'), where the captured impurities are released without burning or destroying the carbon.

MHF emissions meet the most stringent environmental standards, and up to 65% of the heat generated can be used elsewhere in the refinery.

Jord GAC references span North America, the Middle East, Asia and Australasia.

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