News

Read the latest news about Envirogen Technologies and learn more about us!

Envirogen And Höganäs Agree To Partner On Advanced Metals Removal System Featuring Höganäs Cleanit® Technology

Dec 04, 2017

Selenium Solution for Power, Refining and Mining Wastewater

Envirogen Technologies (Kingwood, TX) and Höganäs (Cary, NC) have signed an agreement to partner on the sale of Höganäs' Cleanit® technology as the key component of the Envirogen Advanced Metals Removal System (AMRS). Höganäs has granted Envirogen exclusive rights to market and sell, in North America, the highly engineered Cleanit® technology to Power, Refining and Mining customers who are seeking a solution for selenium and other heavy metals.

The Cleanit® technology features proprietary Zero Valent Iron based particles that serve as the media in Envirogen's Advanced Metals Removal System. Together the solution delivers extremely high removal efficiencies allowing customers to comply with stringent wastewater discharge permit limits. Several pilot studies have demonstrated the effectiveness of the Envirogen Advanced Metals Removal System (AMRS) featuring Cleanit® to reduce selenium levels to single digit parts per billion, even when faced with the more difficult-to-treat species such as selenate. Cleanit® has also been proven to be effective in removing arsenic, chromium and other heavy metals, with full-scale applications in Brazil and additional successful pilot studies in California and Brazil. In many applications, the Cleanit media can be recycled for reuse, thus avoiding a disposal issue for the user site. Both companies are prepared to offer this advanced treatment on a warranted basis in terms of performance, operating requirements and asset life.

Depending on the nature of the application, wastewater composition, and discharge limits, Envirogen may employ their proprietary Fluidized Bed Reactor (FBR) System upstream of the final polishing AMRS step. The FBR relies on bacteria to reduce soluble selenium to insoluble elemental selenium, which is readily removed via filtration. Residual selenium species can effectively be adsorbed using Cleanit® to reach effluent levels that have previously been extremely difficult to achieve.

According to Ronald Riley, North American CEO of Envirogen Technologies, "Envirogen is excited about the opportunity to partner with Höganäs, and the addition of their outstanding Cleanit® technology to our extensive solutions portfolio. Our mining, refining and power customers will be able to achieve discharge limits they did not think were economically possible," he said.

Avinash Gore, President Höganäs Business Area Environmental, shared Ron Riley's enthusiasm by saying "Envirogen is the perfect partner based on their expertise in solving difficult wastewater treatment problems. Cleanit® will deliver a whole new level of performance in removal of heavy metals."

In the last 20 years, Envirogen has installed and operated over 100 water treatment systems in North America, treating a wide range of contaminants, including selenium, nitrate, perchlorate, chromium, mercury and arsenic. Envirogen has introduced best-in-class treatment solutions for selenium in both the chemical, refining, coal mining and power industries and now can offer even lower effluent concentrations using the Höganäs Cleanit® Technology.