PowerPoint Presentation...U.S. CUSTOMS AND BORDER PROTECTION PLATTSBURGH a PLATTSBURGH, NEW
Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang,...
-
date post
20-Dec-2015 -
Category
Documents
-
view
219 -
download
0
Transcript of Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang,...
![Page 1: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/1.jpg)
Case StudiesNatural Attenuation Assessment at Plattsburgh Air Force Base, New York
Shu-Chi Chang, Ph.D., P.E., P.A.Assistant Professor1 and Division Chief2
1Department of Environmental Engineering2Division of Occupational Safety and Health,
Center for Environmental Protection and Occupational Safety and HealthNational Chung Hsing University
Wednesday, June 06, 2007
![Page 2: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/2.jpg)
Outline
Bioavailability Case study 1 Case Study 2
Homework assignment will be on line tonight.
![Page 3: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/3.jpg)
Bioavailability
Assumptions and considerations Microbes are excluded from the smaller
microspores of soil and porous media Intrapore diffusion may be retarded due t
o sorption Only dissolved fraction is available Aging
![Page 4: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/4.jpg)
Bioavailability
Max flux at part. surfaceMax diffusive rate
Biokinetic control
Pore sorption / diffusion control
Max Biokinetic rateFlux at particle surface
Max Biokinetic rateMax diffusive rate
Bulk phase transport control
>1
>1 <1
<1
>1
Ramswani A. and Luthy R., 1997, Measuring and modeling physicochemical limitations to bioavailability and biodegradation. In Manual of Environmental Microbiology, Christon et al (Editors) ASM Press, Washington DC, USA.
![Page 5: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/5.jpg)
Site description
![Page 6: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/6.jpg)
Plattsburgh AFB, New York
![Page 7: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/7.jpg)
![Page 8: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/8.jpg)
![Page 9: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/9.jpg)
Electron donors, electron acceptors, by-products
![Page 10: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/10.jpg)
Biodegradation rate and transferred electron equivalents
![Page 11: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/11.jpg)
![Page 12: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/12.jpg)
Bird-Eye-View of the Site
Source
![Page 13: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/13.jpg)
![Page 14: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/14.jpg)
Bioavailability estimation
![Page 15: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/15.jpg)
Source lifetime
Assumption1. Source pool dim.: 900ftx315ftx1.5ft
2. foc=0.001, ρb= 1.7g/cm3
3. 25% electron transferred to TCE and DCE
Results1. Tracer methods yield the longest lif
etime, while Newell the shortest.2. Order of mag. diff. for BTEX and T
CE, two orders of mag diff. for DCE3. DCE may be a long term problem i
n source zone since it is easily degraded under anaerobic conditions.
4. No dramatic diff. in source lifetime with or without the consideration of EBCs in source zone.
Methods:1. Tracer methods w/o EBC2. Tracer methods w/ EBC3. B&A methods w/o EBC4. B&A methods w/ EBC5. Newell Method w/o EBC6. Newell Method w/ EBC
Source Lifetime Estimation
1
10
100
1000
1 2 3 4 5 6
Methods
Life
time
(Yea
r) BTEX
BTEX
TCE
TCE
![Page 16: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/16.jpg)
![Page 17: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/17.jpg)
![Page 18: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/18.jpg)
![Page 19: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/19.jpg)
![Page 20: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/20.jpg)
![Page 21: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/21.jpg)
![Page 22: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/22.jpg)
![Page 23: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/23.jpg)
Trend observation
![Page 24: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/24.jpg)
![Page 25: Case Studies Natural Attenuation Assessment at Plattsburgh Air Force Base, New York Shu-Chi Chang, Ph.D., P.E., P.A. Assistant Professor 1 and Division.](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649d415503460f94a1c5be/html5/thumbnails/25.jpg)
Long term monitoring protocol Purpose Monitoring plan
Community involvement Institutional control and long term
monitoring Well installation Sampling and analysis plan Monitoring period
Contingency plan