Thin Fraction Processing

Many waste streams consist for the most part of water in addition to their minerals. The processing of the thin fraction ensures that these minerals end up in products with an increased concentration. This is done by filtering the majority of the water from the liquid. After separation, the liquid passes through a drum filter, which stops the last floating parts. The filtered liquid goes to a microfiltration (MF). During this filtration process, undissolved substances larger than 0.1 µm are retained by the ceramic membrane. This means that anything larger is held back by the membrane and cannot enter the next step. The driving force for the membrane filtration is the pressure difference across the membrane from feed to permeate side. Due to the unique membrane surface, a high efficiency can be achieved with a compact installation.