This new technology comprises the use of a system that contains a permeable reactive barrier (BRP) and a subsurface constructed wetland (HCSS) for the treatment of water with low PH and high sulfate content.
After many tests and research, it was possible to determine that some components of the permeable reactive barrier (PRB) generate synergies in the removal of sulfate when they come into contact with the treatment medium, which was the basis of this new low-frequency technology. maintenance and without the need to handle large amounts of sludge, usually observed when lime pools are used in the treatment of acid water, an especially complex issue when a mining operation is being closed and abandoned.
Preliminary estimates indicate that the use of this system with respect to the classic lime treatment reduces between 1 and 2 orders of magnitude the substrate volume requirements for the treatment system. In addition, the reaction times until its stabilization are also quite limited, on the order of weeks, which makes the system even more attractive when considering applications beyond mining.
You will be able to learn more about this project in our technical talk at Exponor: High-efficiency integrated system for acid rock drainage treatment, this will be held on Thursday 30 at 3:30 p.m. in room 2.
