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https://hdl.handle.net/11681/45403| Title: | Microbial dynamics of a fluidized bed bioreactor treating perchlorate in groundwater |
| Authors: | Knotek-Smith, Heather M. Thomas, Catherine C. |
| Keywords: | Groundwater--Pollution Groundwater--Purification--Perchlorate removal Explosives industry Ammunition Bioreactors |
| Publisher: | Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Special Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/EL SR-22-7 |
| Abstract: | Optimization of operation and performance of the groundwater treatment system regarding perchlorate removal at Longhorn Army Ammunition Plant (LHAAP) is dependent on specific conditions within the reactor and the larger groundwater treatment process. This study evaluated the microbial community compositions within the plant during periods of adequate perchlorate degradation, sub-adequate perchlorate degradation, and non-operating conditions. Factors affecting the performance of the LHAAP ground water treatment system (GWTS) perchlorate de-grading fluidized bed reactor (FBR) are identified and discussed. Isolation of the FBR from naturally occurring microbial populations in the groundwater was the most significant factor reducing system effectiveness. The microbial population within the FBR is highly susceptible to system upsets, which leads to declining diversity within the reactor. As designed, the system operates for extended periods without the desired perchlorate removal without intervention such as a seed inoculant. A range of modifications and the operation of the system are identified to increase the effectiveness of perchlorate removal at LHAAP. |
| Description: | Technical Report |
| Gov't Doc #: | ERDC/EL SR-22-7 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/45403 http://dx.doi.org/10.21079/11681/45403 |
| Size: | 57 pages / 2.18 MB |
| Types of Materials: | |
| Appears in Collections: | Special Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-EL SR-22-7.pdf | 2.18 MB | Adobe PDF |  View/Open |