Canadian Mining Journal


PATENT: BQE Water receives patent for Selen-IX water treatment

The first mine to install BQE’s Selen-IX water treatment plant will be Kemess in British Columbia. (Image: BQE Water)

VANCOUVER – BQE Water has been issued a U.S. patent for its Selen-IX process technology. Selen-IX is a water treatment processes that combines ion exchange and electro-reduction to remove selenium from a large volume of wastewater.

Patent 9,963,360 covers key aspects of the company’s technology and is valid until April 2035.

The process developed by BQE Water fixes selenium into stable, refractory non-hazardous solids suitable for disposal to permitted tailings management facilities. The process does not increase the risk of selenium bioavailability  during treatment or toxicity to fish.

BQE has been pilot testing Selen-IX at three Canadian mine sites, two of which have received regulatory approvals to use the technology. The first Selen-IX commercial installation will be a Centerra Gold’s Kemess gold-copper mine in northern British Columbia. The plant will treat up to 6,400 m3/d of mine water.

More information is available at

Print this page

Related Posts

Have your say:

Your email address will not be published. Required fields are marked *