Anaerobic water purification systems for metal and mining

Sustainable metal recovery and water treatment. The metal and mining industry is increasingly aware of the opportunities to recover valuable resources from process and bleed streams. This combines creating revenues with environmental sustainability. The traditional method of removing dissolved metals and sulphate from aqueous process- and waste streams in the metal and mining industry is by neutralization with an alkaline agent like lime. The gypsum and metal hydroxides which are produced in this process complicate reuse of the valuable metals, with large quantities of sludge and increasing costs as a result.

Paques offers proven biobased technologies for recovery of valuable metals, toxic metal immobilisation, water reuse, zero discharge and water discharge for process-, ground- or wastewater. These technologies are deployable in different stages of the metal and mining value chain, from mining and ore processing to pyro- or hydrometallurgical metal production and recycling. The process design is flexible and can be modified to the specific needs of each situation.

  • SULFATEQ™ for sulphate removal with simultaneous metal recovery (treatment of brines, bleeds, water from tailing dams, acid mine drainage, acid rock drainage and downstream lime treatment)
  • THIOTEQ™ Metal for metal recovery
  • THIOTEQ™ Scorodite for arsenic removal