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Purge-free Sulfate Concept

Purge-free sulfate concept (Uhde SulfTech)

In order to maintain a constant sulfate level in the brine, the conventional approach is to either treat the brine chemically and precipitate the sulfate or to purge out the sulfate with a certain quantity of brine.

But neither the disposal of sulfate-containing sludge nor the purging of brine are ideal from either an economic or an environmental point of view. The Uhde SulfTech technology obviates the need for chemical treatment or brine purging. Instead, the sulfate is physically removed from the brine and then chemically treated to form gypsum, which can be disposed of as a solid product.

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