Mercury has been an on-going issue with a client of ours at a large wastewater treatment plant (120 MGD average). Multiple hearth incinerators are currently in place, with scrubber water being sent to lagoons for decanting. The decant and overflow is sent back up to the headworks of the plant, so all heavy metals (including mercury) end up running back through the wet process stream and into the plant effluent.
I've done some research to see what types of treatment technologies are available to remove mercury from the liquid phase. There is a company that uses granular carbon packed tower adsorption, however they typically use much higher mercury concentrations in the inlet stream. At the facility in question, we'd be looking to treat 2-3 MGD of scrubber water, containing approximately 20 mg/day (or 1.76 x 10^6 mg/L).
Are there any technologies floating around that any of you may know of that can remove mercury at such high flow rates and low concentrations?
Any help you can provide is much appreciated!
I've done some research to see what types of treatment technologies are available to remove mercury from the liquid phase. There is a company that uses granular carbon packed tower adsorption, however they typically use much higher mercury concentrations in the inlet stream. At the facility in question, we'd be looking to treat 2-3 MGD of scrubber water, containing approximately 20 mg/day (or 1.76 x 10^6 mg/L).
Are there any technologies floating around that any of you may know of that can remove mercury at such high flow rates and low concentrations?
Any help you can provide is much appreciated!
