Methanol Metering Pump Designed For Wastewater Denitrification

Aug. 6, 2014
Fluid Metering, Inc. introduced the valveless QDX metering pump for small and mid-size treatment facilities.

Fluid Metering, Inc. (FMI) introduced the CeramPump QDC Hazardous Duty Metering Pump for low volume addition of methanol for nitrate removal in wastewater effluent. The QDX metering pump is designed for methanol metering for wastewater denitrification due to its unique valveless design. It is especially suited to small to mid-size treatment facilities where flow rates are extremely low causing valved pump designs to become air-bound and lose prime.          

The CeramPump has only one moving part in contact with the process fluid, a rotating and reciprocating ceramic piston. Similar to conventional piston pumps, the piston’s reciprocation performs the pumping function. However, the piston also simultaneously rotates during the pumping cycle and is synchronized to alternately open and close the inlet and outlet ports of the pump, effectively functioning as a valve. At no point are the inlet and out ports interconnected, thus eliminating the need for check valves. The pump drive is FMI’s QDX Hazardous Duty Drive, typically required for pumping methanol.