With high levels of lignin and cellulose along with process chemicals in waste streams, the pulp and paper wastewater treatment industry faces a broad set of challenges when it comes to wastewater treatment, making it difficult to ensure a high-quality effluent while keeping costs down. From lowering COD in the effluent to dealing with black liquor spills, Novozymes has developed a range of solutions for the pulp and paper wastewater treatment industry.
Bioaugmentation has long been used in the pulp and paper wastewater treatment industry for all types of mills using either aeration stabilization basins or activated sludge treatment systems. Aeration stabilization basins are a natural fit for bioaugmentation because they have little operational control. In aeration stabilization basins, bioaugmentation is the best way to respond to increased loading, or to resume operation after a toxic event. Bioaugmentation can also be used in activated sludge plants to respond to increased loadings, or to stabilize treatment and improve shock-load resistance.
Novozymes offers customers access to innovations based on advanced microbial screening, as well as world-class fermentation, production capabilities and application expertise to ensure the highest quality wastewater products. Typical pulp and paper wastewater treatment applications include: