Industrial wastewater is facing tougher regulation, and tighter limits on nutrient discharge are being imposed to secure the quality of waterways. This increases the need for more thorough purification technologies. Meanwhile, there is a significant potential for raw materials lurking in wastewater.
The treatment of industrial wastewater creates effluents which contain substances such as nitrogen, phosphorus, potassium, and sulphur. It is harmful to discharge large amount of nutrients into the environment, but when these nutrients are recovered they serve as valuable constituents of new circular economy products. At the same time, the use of virgin raw materials can be reduced, while boosting self-sufficiency e.g. in nitrogen-based and phosphorus-based industrial chemicals and fertilizer products in Europe.
Technically and economically feasible solutions for treatment of wastewater and recovery of nutrients are being developed in the TYPKI project. It is coordinated by VTT and promotes the recovery and refinement of nutrients into industrial chemicals, construction materials, and fertilizer additives.
Read the full article at: waste-management-world.com