Bottom-up − slag granulate and dredging robot in collaboration for resource recovery from sediment
Reference number | |
Coordinator | Kungliga Tekniska Högskolan - Institutionen för hållbar utveckling, miljövetenskap och teknik (SEED) |
Funding from Vinnova | SEK 449 600 |
Project duration | November 2024 - June 2025 |
Status | Ongoing |
Venture | Impact Innovation Metals & Minerals - Program-specific efforts Vinnova |
Call | Impact Innovation: Feasibility studies within Technological Action Areas in the program Metals & Minerals |
Purpose and goal
The goal is to verify the function of magnetic slag granules for separation and enrichment of dedicated contaminants/searched minerals in lab-scale trials and to determine optimal granule size for manufacturing, long-term sorption capacity of granules, simulate capping of sediment and simultaneous dredging of granules and sediment with low-flow dredging technology. Furthermore, propose process technology for the extraction of fixed minerals and develop a proposal for full-scale project.
Expected effects and result
We expect to deliver a) report on performance of magnetic slag granules for sludge/sediment treatment, b) report on field technology in using slag granules for recovery of metals and phosphorus, c) report on process technology in recovery of metals and phosphorus from slag-granules, d) project plan for full-scale projects where involved parties and people in the project as well as other stakeholders in the work develop a plan for a full-scale project and creation of consortium.
Planned approach and implementation
The work is carried out in four WPs: 1: Slag-granules function. Petrit T-S and CarbonMV are studied in the lab to ensure metal sorption and organic substances. 2: Application, dredging, slag granules + sludge. Technology for application and recovery with two robots and computer simulation. 3: Process technology, extraction of metals and phosphorus from slag granules. Separation methods for recycling metals and phosphorus. 4: Plan full-scale projects with the steel industry and other industries