CHILE - BIOTEQ ENVIRONMENTAL TECHNOLOGIES of Vancouver has signed a development agreement with MOLIBDENOS Y METALES S.A. (Molymet) for the development of two water treatment plants located at Molymets refinery near Santiago. One plant will recover copper from the wastewater stream of a SX/EW plant, and the other plant is for final water treatment to remove sulphate from solution.
Molymet operates an integrated refining facility located at Nos, approximately 30 km south of Santiago. The refinery treats molybdenum concentrates to make final upgraded molybdenum products as well as cathode copper byproduct.
Copper will be recovered in the first plant using BioteQs BioSulphide technology to treat a complex acid wastewater stream from the SX/EW plant to produce a final copper concentrate for sale. The objective is to recover at least 90% of the copper contained in the waste stream.
The second plant will remove sulphate in the final waste water treatment stage prior to water recycle. BioteQ has developed ion exchange technology, Sulf-IX, for the removal of sulphate from complex salt solutions. Application of the Sulf-IX technology at Molymet would replace the existing reverse osmosis plant and associated evaporation and crystallization plants, to provide a high recovery of treated water that meets discharge quality requirements.
BioteQ says that preliminary engineering is in progress to provide estimates for production as well as capital and operating costs. Learn more about the Sulf-IX and BioSulphide processes at www.Bioteq.ca.