The most common plants for the purification of the tannery wastewater are the suspended biomass ones, consisting of the nitrification and denitrification processes for nitrogen removal.

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The heart of the process, selected by DeltAcque after its long experience, is the biological application.
It offers the following advantages:

• The minor sludge production;
• The reduction of the chemical products utilized;
• The abatement of the electrical consumption;
• The increase of the general efficiency of the treatment;
• The simplification of the plant management;
• The possibility to recycle the waste material.

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