Solutions are actively sought for the recovery of industrial waste materials, and on the other hand, waste water treatment with cost-effective, reusable materials is of great interest. In addition, a viable solution is being sought for the recycling of valuable substances such as nutrients. This project will develop solutions that simultaneously implement these objectives. The aim of the project is to recover valuables from waste water, both by electrochemical precipitation and by utilising industrial by-products as adsorbents and septic chemicals. The Waterpro package consists of two projects, the Waterpro development project (A74635) and the Waterpro investment window. In electrochemical precipitation, electric current dissolves anode material (e.g. iron) allowing the formation of the precipitate. Electrochemical precipitation is suitable for handling nutrient and metallic water. The valuables accumulate in a precipitate, which can be used, for example, as a fertiliser. Electrochemical precipitation also works in a cold environment, does not require the use of chemicals and is a method with low investment, operating and maintenance costs. For chemical precipitation, industrial side streams, e.g. calcareous materials, may be used as a precipitate chemical. As adsorption materials, industrial side streams can be used, which are treated thermally, chemically or by geopolymerisation. The materials manufactured are eco- and cost-effective and are manufactured from industrial waste materials using a simple manufacturing process using low temperatures and environmentally friendly chemicals. Materials can be regenerated several times, and after water purification use, they can be used in the construction industry, as a fertiliser or as a stable material. The water purification solution reduces environmental problems caused by waste water, enables water recycling and saves annual costs (water, energy, waste management, chemical costs) and allows for the recovery of valuables. Previous research and publications by the project partners show that both geopolymer technology and electrochemical precipitation have potential for full-scale production. Chemical precipitation and adsorption are widely used methods, but R & D efforts are still needed to commercialise effluent-based materials. The project will produce new information on the recovery of valuables from waste water, the compatibility of different technologies, the utilisation of waste materials in waste water treatment and the design of sustainable processes. The results of the project will contribute to the more sustainable use of materials, economic water purification solutions, the appreciation of Finnish know-how and the creation of new business in the regions participating in the project. The project is carried out in a cross-province and involves actors from Central Ostrobothnia, North Ostrobothnia and the Kainuu region.