Incineration bottom ash
Powerful separation and sorting technology for the processing of bottom ash from domestic waste incinerators.
Depending on the method used for removing the ash from the incinerator, fine-grain content with grain diameters d<10 mm may be obtained of up to 50% and d<4 mm up to 30%. These fine fractions contain a particularly high proportion of recoverable heavy metals such as copper. Because electronic components with ever-smaller parts are being burnt along with municipal solid waste, however, a significant proportion of noble metals such as gold and silver are present in the <2 mm grain range.
These material-specific challenges for the exploitation of the recycling potential demand technology that combines highly effective separation and operational reliability even under adverse operating conditions.
Crush and sreen the domestic waste after incineration. Magnetic separation equipment is used to recover metal iron, eddy current separator is used to recover aluminum, and use jig, shaker and other equipment to recover copper and other precious metals.
