Selection of Sampling Pumps Used for Groundwater Monitoring at the Hanford Site

Schalla, Ronald ; Webber, William D ; Smith, Ronald M

Pacific Northwest National Laboratory (U.S.)

关键词: Flow Rate;    Monitoring;    Centrifugal Pumps;    Sampling;    11 Nuclear Fuel Cycle And Fuel Materials;   

DOI  :  10.2172/789447
RP-ID  :  PNNL-13690
RP-ID  :  AC06-76RLO1830
RP-ID  :  789447

美国|英语

来源: UNT Digital Library

【 摘 要 】

The variable frequency drive centrifugal submersible pump, Redi-Flo2a made by Grundfosa, was selected for universal application for Hanford Site groundwater monitoring. Specifications for the selected pump and five other pumps were evaluated against current and future Hanford groundwater monitoring performance requirements, and the Redi-Flo2 was selected as the most versatile and applicable for the range of monitoring conditions. The Redi-Flo2 pump distinguished itself from the other pumps considered because of its wide range in output flow rate and its comparatively moderate maintenance and low capital costs. The Redi-Flo2 pump is able to purge a well at a high flow rate and then supply water for sampling at a low flow rate. Groundwater sampling using a low-volume-purging technique (e.g., low flow, minimal purge, no purge, or micropurges) is planned in the future, eliminating the need for the pump to supply a high-output flow rate. Under those conditions, the Well Wizard bladder pump, manufactured by QED Environmental Systems, Inc., may be the preferred pump because of the lower capital cost.