PS 117
Heavy Metal Remover

Heavy Metals in Wastewater

Use of heavy metals is unavoidable in numerous branches of industry and industrial
applications. Because heavy metals are usually extremely toxic to man and environment alike, strict environmental regulations are often enforced to limit their concentration in wastewater (and exhaust air). To comply with these regulations, the wastewater is usually neutralized with caustic soda solution or lime. The heavy metals precipitate as insoluble hydroxides and can thus be removed. However, these methods frequently fail, due to the presence of complexing agents that interfere with
the precipitation of hydroxides, or even completely prevent it.

“THE RESULT - Heavy metal limits cannot be achieved.”

Heavy metals are defined as metals with a high density (> 3,5-5 g/cm3). They are natural elements that can’t be degraded or destroyed. Only their chemical and physical properties can change (such as by forming soluble or insoluble compounds). Complexing agents are substances that can keep metals in solution.

THE SOLUTION
Precipitation with PS-117
PS-117 reacts with heavy metals to form extremely stable, virtually insoluble heavy metal- PS-117 compounds. It forms a solid that is easy to separate. PS-117 also produces good results when hydroxide precipitation exhibits little or no effect.
Applications: Waste Incinerators/ Coal-Fired Power Stations etc.

THE RESULT: Heavy metal limits can be achieved.