Perchlorate Destruction and Potable Water Production Using Membrane Biofilm Reduction and Membrane Filtration
Abstract
This study demonstrated use of a membrane biofilm reactor (MBfR) for drinking water treatment from perchlorate- and nitrate- contaminated groundwater. The MBfR used anoxic autotrophic biodegradation for the complete destruction of perchlorate and nitrate. The objectives were to demonstrate the feasibility of MBfR to destroy perchlorate and nitrate in groundwater and produce potable water at the pilot scale, evaluate process control parameters to optimize performance, and estimate full-scale technology costs. These objectives were successfully demonstrated. The study included four phases: Start-Up, Optimization, Steady State, and a Challenge phase to assess system robustness and resiliency. Using indigenous organisms, the MBfR was colonized with perchlorate- and nitrate-reducing bacteria within approximately one month. Perchlorate was reduced by approximately 94 percent to 9.2 2.3 g/L in the effluent of the lag reactor during Steady State. Total nitrogen (the sum of nitrate and nitrite) was reduced by approximately 99 percent to an average of 0.12 0.07 mg-N/L in the effluent of the lag reactor during Steady State.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 18, 2013
- Accession Number
- ADA602379
Entities
People
- Bruce Rittman
- Clyde Arucan
- Daniel Berokoff
- David Friese
- Hoon Hyung
- Jennifer E Smith
- Patrick Evans
- Renato Vigo
- Ryan Overstreet
- Tony Singh
Organizations
- Arizona State University