Leading the biotech revolution
in wastewater and biogas

Tannery wastewater treatment

In tannery wastewater treatment, high amounts of solid wastes are produced due to chemical precipitation and aerobic treatment. The resulting sludge has to be disposed of at high cost. That’s why many tanneries search for solutions to reduce the amount of solids in their tannery effluent.

The sustainable combination of sludge digestion and anaerobic wastewater treatment not only reduces the amount of solid waste in tannery wastewater, but also produces profitable biogas. The digestion stage can be extended to treat other tannery waste products such as fleshings and trimmings.

Biologically removing sulfate from tannery effluent

Tannery wastewater also contains elevated levels of sulfate and chlorides. Paques offers biological anaerobic systems that effectively treat tannery wastewater high in sulfate. After reducing sulfate to sulfide, the biological sulfide oxidation process efficiently removes the sulfide from either wastewater or gas by converting it into biosulfur. The result is a sulfide-free effluent low in sulfate, without the need for sulfide precipitation using iron-based chemicals.

Read more about sulfate removal

Removing nitrogen in tannery wastewater

Depending on final discharge limits, you can apply ANAMMOX® or [aerobic post-treatment](Aerobic treatment / Aerobic COD removal) of tannery effluent for nitrogen removal.

Read more about sulfate removal

Odor-free tannery wastewater treatment plant for ECCO footwear company

ECCO Leather B.V. is part of the Denmark based global footwear company ECCO Sko A/S. In November 2010, ECCO signed a contract with Waterstromen BV for a new anaerobic plant for their tannery wastewater in Dongen, the Netherlands.

Paques designed and built this tannery wastewater treatment plant for Waterstromen. It was commissioned in the second half of 2011.

Complex tannery wastewater treatment for Vitelco/Hulshof

The Hulshof Royal Dutch Tanneries was founded in 1876 and is known today as Vitelco Leather. Vitelco Leather is one of the largest European producers of high quality upholstery leather, processing many thousands of hides every week for the furniture and aviation industry. The leather is both produced and specially finished at the Royal Dutch Tannery.

Motivated by the wish to reduce the amount of solid waste produced and increasing demands for the removal of sulfate, chloride and nitrogen, Hulshof outsourced their tannery wastewater treatment to Waterstromen BV in 2001. Paques constructed a new plant for Waterstromen two kilometers outside the town of Lichtenvoorde where the tannery is located.

The new tannery wastewater treatment plant consists of anaerobic treatment of sludge and wastewater combined with biological sulfide oxidation and the Paques’ process for nitrogen removal. With Paques’ biological wastewater treatment processes, COD, sulfate, sulfide, chromium and nitrogen are all reduced to low levels. The amount of solid waste was significantly reduced compared to the earlier physical and chemical treatment. Waterstromen uses the biogas generated in tannery wastewater treatment to produce electricity.

Read more about biogas desulfurization


At Paques, we believe in a cleaner, more sustainable world where innovation in biotechnology plays a crucial role in managing our planet's resources wisely.

If you have any questions or wish to explore what Paques technologies can do for your operations, we encourage you to connect with our team of experts. Our knowledgeable professionals are ready to assist you, offering insights and guidance tailored to your specific needs.

Leading the biotech revolution in wastewater and biogas

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Thank you for reaching out to Paques

Your inquiry is important to us, and we are eager to assist you in exploring our innovative solutions for biological wastewater and gas treatment.

A member of our expert team will be in touch shortly to discuss your specific needs and how Paques can help you achieve your environmental and operational goals.

We look forward to collaborating with you and hope to build a cleaner, more sustainable world together.

Warm regards,
The Paques Team