Ryan James Battelle Senior Research Scientist Judy Lopez …€¦ · Judy Lopez AFCEC/CZTQ Water...
Transcript of Ryan James Battelle Senior Research Scientist Judy Lopez …€¦ · Judy Lopez AFCEC/CZTQ Water...
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Ryan James Battelle Senior Research Scientist Judy Lopez AFCEC/CZTQ Water Quality
Demonstration and Validation of Real Time Water Quality Monitoring Technologies
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Background
• January 2014 - AFCEC issued a statement of need pertaining to Safe Drinking Water Act (SDWA) violations, specifically referencing total coliform rule violations and disinfection byproduct problems across the Air Force
• Battelle responded with a white paper describing an idea of implementing water quality monitoring as well as automated coliform analysis
• May-July 2014 Battelle submitted full proposal describing a plan to help address some of the SDWA concerns including trihalomethane monitoring
• Monitoring conducted May 2015 through August 2016
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Objectives
• Demonstrate and validate (Dem-Val) a comprehensive water monitoring approach to possibly reduce or eliminate SDWA violations § Pathogen detection
§ Water quality monitoring
§ Disinfection byproduct monitoring
• Provide option that if successful, could be transitioned to broader Air Force use
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Water Quality Monitoring • ENDETEC KAPTA 3000TM: in-pipe real-time
water quality monitoring (chlorine, conductivity, pressure, and temperature) indicators of conditions favorable for SDWA violations
• All data transmission via cellular signal, there will be no use of Air Force computer or communication networks
• All instrumentation will be for monitoring; no treatment, process, or flow control technologies will be tested or used
• ENDETEC TECTA B-16TM: automated instrument/method that is EPA approved for regulatory analysis for total coliforms and E. coli
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TECTA B-16TM
KAPTA 3000TM
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ENDETEC KAPTA 3000TM
• Chemical-free operation • Annual maintenance
• In-pipe placement
• Measurement of active chlorine (HOCl) vs. free chlorine – not the typical chlorine residual metric
• Pressure measured with a piezo electric sensor
• Conductivity measured as well
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KAPTA 3000TM Functionality
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Wright-Patterson Air Force Base • Minimum 2” pipe with flow
• Accessible for sampling and install (not-buried)
• Strong cell phone signal for data collection
• 7 sites installed and monitored from June 2015 through August 2016
• Data collected on base unit (KAPTALink) located 60 miles from sensors
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Wright-Patterson Air Force Base
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KAPTA 3000 Chlorine Results
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KAPTA 3000 Chlorine Results
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KAPTA 3000 Conductivity Results
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KAPTA 3000 Conductivity Results
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Aqua Metrology Systems THM-100™ • AF distribution system experiencing
periodic violations in various areas of the Safe Drinking Water Act (SDWA)
• AMS THM-100 uses automated “purge and trap” with spectrometric detection
• Side-stream continuous monitoring • Grab sample monitoring using same unit
• Demonstrated instrument that employs cloud-based data collection
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THM-100TM
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Altus, OK Air Force Base • Drinking water sources with THM
levels that exceed regulatory levels
• Installed Aqua Metrology THM-100 for continuous analysis
• Has revealed episodic changes in THM levels not before identified
• Altus is extending monitoring for 2 additional years
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THM-100™ Results
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THM-100™ Grab Sample Results
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Continuous Data
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THM-100™
KAPTA 3000
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Potential for Technology Transfer • Active vs free chlorine and
locations are a limitation
• Data communication is convenient-30 probes can be placed per base unit
• TECTA B-16 EPA-approved for regulatory use; 16 samples at a time
• Extremely simple to operate
• THM-100™ applicable for any high THM base
• Alert functionality convenient operation feature
• Continuous monitoring offers many advantages vs infrequent grab sampling
• Battelle very familiar and can coordinate process
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Contact Information
Battelle Contact Ryan James, Project Manager
614-424-7954
Air Force Contact Judy Lopez
AFCEC/CZTQ Water Quality
210-925-0616
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