Tanneries and several textile ...

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Tanneries and several textile finishing sites  have quite high water consumption and use primarly non or slowly degradable agents and auxiliaries. Tanneries use also toxic Sulfides, making Things more complicated. Chromium can be today replaced by less harmful tanning agents. Biotreatment has the lowest costs, but can´t achieve a complete treatment, so that oxidation methods are necessary for a better removal.