Tag: water treatment

Questions We Get About Selen-IX™

September 25, 2023

We have been fielding many questions about our Selen-IX™ process for selenium removal, as it is the only commercially available non-biological technology in use by mining and power generation at present to remove the selenate form of selenium to less than 0.5 ppb, without generating liquid brine and fixing the selenium into a stable solid […]

Our Nuvumiut Partnership

August 3, 2022

Nuvumiut Development representatives from left to right Lukasi Tukirqi, Johnny Alaku, Lukasi Pilurtuut and Don Cameron with David Kratochvil of BQE Water in the centre. Earlier this year, we formed a joint venture with Nuvumiut Development, an Inuit company focused on developing employment opportunities for people in the communities of Salluit and Kangiqsujuaq. Situated on […]

Sulphate in Mining Wastewater – A Question of Mass

June 4, 2019

Sulphate is a common by-product found in mine impacted water that is increasingly on the regulatory radar as a contaminant of concern. Unlike metal contaminants such as copper that are often present in mining wastewater at low levels from 0.1 to 10 mg/L, sulphate concentrations tend to be much higher and can range upwards of […]

Optimizing Lime Treatment that Uses Decommissioned Open Pit

February 12, 2019

Water management at this nickel mine in Northern Québec involves the operation of a Low Density Sludge (LDS) lime treatment system that uses a decommissioned open pit as a reactor and sludge settling basin. The source of mine impacted water being treated is surface run-off and water collected in several active and old open pits […]

Ammonia Removal from Mine Impacted Waters

September 26, 2018

Ammonia is a nitrogen compound that is found in nature in trace amounts, most notably as a waste by-product when microorganisms utilize nitrogen gas or from the decomposition of organic waste. It is also produced industrially for use in fermentation, fertilizers, cooling systems, explosives and cleaning supplies. Ammonia at concentrated levels is hazardous. Whereas mammals […]

Optimizing Water Treatment at a Zinc Smelter

July 18, 2018

In operation since the early 1900s, this zinc smelter and refinery currently produces over 200,000 tonnes of zinc and over 100,000 tonnes of lead per year. The existing wastewater treatment plant at the site was installed several decades ago to treat a blend of streams generated by smelter off-gas cleaning and conversion of the SOx […]

How Plant Operations Experience Leads to Better Plant Design

May 28, 2018

As we prepare to start our fifteenth operating season at Raglan Mine, tenth operating year in China and Colorado, we took some time to reflect on our active involvement in ongoing plant operation and maintenance, and what it means for us and ultimately our customers. In the past decade and a half, we have designed […]

The Changing Industrial Wastewater Market in China

September 6, 2017

Environmental protection in China has taken positive steps forward in the past few years after decades of rapid economic growth left the country with polluted water and air. One of these steps is the pursuit of solutions from environmental specialists outside of China to help address China’s challenges. In June 2017, BQE Water was part […]

Electrocoagulation for Mine Water Treatment: Myths & Truths

April 26, 2017

As the industry turns to greener processes, the use of electrochemical technologies such as electrocoagulation is gaining more traction for the removal of contaminants from industrial wastewater. Electrocoagulation can be effective in some applications, but the technology also has its constraints. Here, we unveil some of the myths & truths about electrocoagulation. Chemical Coagulation and […]

What is the True Cost of Mine Water Treatment?

March 21, 2017

Most mining projects assess needs for water treatment. But how do you determine if treatment is required or which is the best treatment option for your project? Typically one conducts a Life Cycle Cost analysis of the available water management and treatment options to determine the most cost-effective solution meeting site specific requirements. While Life […]