Course participants will benefit from training designed by the experts, as Sauce Labs co-founders and employees were involved in the development and maintenance of both Selenium and Appium.

Removing selenium from water is challenging because it's so water soluble, Giammar said. Iron electrocoagulation is up to the challenge by generating iron-containing solids with large surface areas.

Here's what selenium is, what benefits it provides and the dangers of taking too much.