Treatment of leachate (sigevann – lakvatten)

Leachate is all the water that has been in contact with waste stored in a landfill. It arises primarily as rainwater seeps through the landfill body, but also from the moisture inherent to the waste itself. The landfills contains a mixture of materials and no landfills are the same. Some primarily receives waste from an incineration process, some has their own composting plant while others have been closed for years. The water raining down and percolating through the waste is caught in the drainage system and from there goes to a treatment system. The type of landfill and the local regulations will dictate the required water treatment system.

Bio-Aqua has specialized in designing and building treatment systems for leachate. As there are great variations in the water types almost all projects starts with a piloting period. In a strong cooperation between the landfill and Bio-Aqua we install a pilot unit, consisting of an array of technologies e.g. flocculation, flotation, screw press etc. During a testing period the equipment is tuned and if required a technology can be included or excluded. In this way we find the best solution for the specific landfill. In this way both the landfill and Bio-Aqua has reduced the risk of purchasing a new treatment solution. The final solution is either incorporated into an existing building or is installed in an isolated container.