Mining operations are crucial for the modern society. During the early stages of mining, waste management was not considered an issue. However recently there has been an increasing awareness that historic ways of industrial production are not sustainable. While many waste management strategies have been improved upon in the past decades, there is still one key resource that is used, treated minimally and released to the nature: water. Water is essential for the mining industry for both transporting the ore in a slurry via pumps and as a vital phase in many mineral enrichment processes, such as gravity separation and froth flotation. Usually, the water is collected from a nearby water body (lake or river), and after processing the water is released back after minimum required treatment to fit the environmental permit. Thus, such discharge water still contains considerable amounts of contaminants. With increasing environmental awareness, the modern permits are much stricter in terms of water quality. This has recently led into delays and even cancellations of industrial investments in Finland. These can be traced down to the lack of efficient and affordable treatment solutions for waste waters as well as the overall know-how related to water treatment. Another further complication to this topic is the fact that there are a multitude of water streams from different stages of the processes all with their unique properties and requirements. They vary from waters containing suspended solids and colloids; to waters in tailings ponds acidifying due to sulfidic mineral species, which consequently dissolve heavy metals and processing waters that are rich in dissolved salts and residual chemicals. Furthermore, all these variations are unique to a processing site based on their needs. It is evident that the current practices and know-how are not sufficient to achieve closed water loops within industry operations or discharge water whose quality is similar to that of the surrounding natural bodies of water. Considering that mining waste waters usually consist of both particulate and dissolved contaminants, a specific combination of treatment methods is often required. Thus, traditional single-stage treatment processes usually fall short when treating such diverse pollutants present in mining effluents. These aspects highlight the dire need to develop water treatment procedures to treat fundamentally differing mining and process waters. The goal of the Multistage Water Treatment Innovation Platform (MWTIP) project is to develop a comprehensive treatment process by synergistic combination of four water treatment rigs, meeting the challenges of modern mining operations while targeting environmental sustainability and circular economy practices. The MWTIP project combines chemical, electrochemical, adsorption and membrane technologies to provide a comprehensive solution that addresses the diverse pollutants found in mining effluents. Each rig is designed to handle specific contaminants, and together they form a closed-loop system that maximizes water reuse, minimizes waste generation, and promotes the recovery of valuable resources. The MWTIP project will reduce the environmental impact of mining operations and conserves water by enabling the recycling of process water. In doing so, the proposed investment not only mitigates the environmental challenges of mining but also turns wastewater into a valuable resource. The total MWTIP project investment will include procurement and installations of four test rigs for water treatment. The project is an essential part of GTK Mintec's extensive investment and development program launched in 2019. The goal of the GTK Mintec 2.0 development program is to create the world's most modern digital laboratory and pilot plant complex in Outokumpu. The MWTIP project is a two-year project and will be implemented during the years 2025–2027.