Pulp and Paper
Water is required in almost every step of the production process of pulp and paper. The wastewater streams vary greatly in concentration and composition (e.g. COD, BOD, suspended solids, wood extractives, sulphur, pH). Due to stricter rules and regulations with regard to fresh water intake and wastewater discharge, efficient water management has become essential to the industry.
Over 200 of Paques installations treat Pulp and Paper effluents worldwide. This experience, combined with decades of expertise in biological purification, physical separation and filtration, enables Paques to design, build and deliver a custom-made and cost-effective purification process. The BIOPAQ®IC bioreactor is the most popular and dynamic anaerobic reactor of its kind. It has been copied, but never rivalled.
Paques’ technology results in low energy use and minimum sludge production, keeping operational costs low. Biogas production from the anaerobic reactor becomes increasingly important as a source of renewable energy. In most cases this even results in a positive energy balance for the entire purification plant. Paques has integrated biological treatment in the closed water loop, resulting in significant improvements in the quality of the process water.
Pulp and Paper cases
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Dealing with H2S in biogas from papermills...
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Lifelong wastewater treatment with UASB retrofitting ...
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Biological treatment in closed circuit improves paper qualit...
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Biogas for pulp dryers ...
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A new BIOPAQ® for every new container board production line...
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Water treatment installations expand in step with paper prod...
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Long term relationship between paper producer and Paques ...