Jar Testing for Metals Removal


Courtesy of Integrated Engineers Inc.

Using the chart below, find the metal(s) of concern. Determine the best pH range for maximum insolubility for the metal(s). If there is a combination of metals, then concentrate on the metal with the highest concentration and adjust the pH to this point.

Determining the Optimum pH for combined metals: Typically facilities have 2, 3 or more different metals in their waste stream. To determine the optimal pH, use a concentration factor of each metal and calculate the optimal pH point. For example, a waste stream has copper at 85 ppm, Nickel at 300 ppm, and total chrome at 125 ppm.

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