BioHeap’s mini plant is used for estimating residence time for continuous bacterial farms and can be used for small scale continuous tank leaching tests. Pilot plants are conducted on site and are generally for a batch of 5000t+ to evaluate leaching at full heap height.

Pilot plants give the best estimate of leaching kinetics, acid consumption and metal leaching recoveries and are used to generate a full design criteria for engineering of a full scale plant. BioHeap can provide technical assistance with the design, commissioning and operation of pilot trials via a consultancy arrangement.