BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING...
Transcript of BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING...
![Page 1: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/1.jpg)
Susan E.A. Addy Ashok Gadgil
Case van Genuchten
with the Berkeley Arsenic Alleviation Group (BAAG), UC-Berkeley
http://arsenic.lbl.gov
BERKELEY LAB Lawrence Berkeley National Laboratory
CIVIL AND ENVIRONMENTAL ENGINEERING University of California - Berkeley
![Page 2: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/2.jpg)
• The problem
• Our approach
• ECAR technology
• Field work
• Discussion
Berkeley Arsenic Alleviation Group (BAAG) 10/13/09 2
OUTLINE
![Page 3: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/3.jpg)
The problem
Berkeley Arsenic Alleviation Group (BAAG) 10/13/09 3
![Page 4: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/4.jpg)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG)
Natural Arsenic in Groundwater
Millions drink from arsenic-contaminated tube wells Poisoning leads to
hand lesions, cancers, and death
4
![Page 5: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/5.jpg)
Arsenic contamination is worldwide
… but Bangladesh & West Bengal (India) are hardest hit.
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 5
![Page 6: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/6.jpg)
Our Approach
Berkeley Arsenic Alleviation Group (BAAG) 10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 6
![Page 7: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/7.jpg)
4/10/09 Berkeley Arsenic Alleviation Group (BAAG)
What has been tried?
• Tubewell switching
• Return to surface water
• Rainwater harvesting
• Point-of-Use arsenic removal
Some, but not enough success
![Page 8: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/8.jpg)
Technical and social challenges
• Dispersed, poor population with little infrastructure
• Arsenic-contaminated tubewells convenient and free
• Arsenic is colorless, tasteless, odorless – No feedback for users
• Disease latency high (5-20 years) – Preventative medicine – harder to incentivize
• Safe arsenic levels extremely low – 10 ppb = 10µg/L (WHO Recommendation)
– Difficult to remove
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 8
![Page 9: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/9.jpg)
4/10/09 Berkeley Arsenic Alleviation Group (BAAG)
![Page 10: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/10.jpg)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 10
- Community Scale - 2¢ for 10 Liters - Modest profit Sustainability Andhra Pradesh, India
![Page 11: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/11.jpg)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 11
Andhra Pradesh, India, 2006
Water delivered door-to-door
![Page 12: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/12.jpg)
ECAR Technology
Berkeley Arsenic Alleviation Group (BAAG) 10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 12
![Page 13: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/13.jpg)
Electrochemical Arsenic Remediation (ECAR)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 13
![Page 14: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/14.jpg)
Electrochemical Arsenic Remediation (ECAR)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 14
![Page 15: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/15.jpg)
ECAR in the lab Arsenic Removal from synthetic Bangladesh Groundwater
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 15
![Page 16: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/16.jpg)
Arsenic-Laden Waste
• Lab tests produce ~80 mg/L sludge
- 300g/person/year (assumes 10 Liters/ person/day)
- 300kg/year for 1000 people (200 families)
- Safe for landfill disposal (US standards)
- Can put in concrete
![Page 17: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/17.jpg)
Advantages
• Low maintenance
Challenges • Requires (intermittent) electricity
• Separation stage is long or coagulant required • Low cost
Operating Costs estimated at < 0.38¢/person/day (assuming PV power)
• Minimal supply chain ~200g of iron/person/year
• Produces very little waste ~300g/person/year
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 17
Well-suited to WaterHealth Model
• Extremely effective Final As < 10 ppb, with AsIII or AsV
![Page 18: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/18.jpg)
Field Work
Berkeley Arsenic Alleviation Group (BAAG) 10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 18
![Page 19: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/19.jpg)
Bangladesh
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 19
![Page 20: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/20.jpg)
Cambodia
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 20
![Page 21: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/21.jpg)
Upcoming Field Work
• (Fall 09) 100L/batch Prototype – Site: Murshidabad district,
West Bengal, India – Goals: run continuously for
weeks – Assess: performance,
maintenance, reliability
4/10/09 Berkeley Arsenic Alleviation Group (BAAG)
• (Fall 10) Pilot Project − Longer operation − Serve clean water − Run with business partner
![Page 22: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/22.jpg)
Mentors: • Robert Kostecki, Venkat Srinivasan, Howdy Goudey, Lara Gundel,
Jerry Pugh, Jonathan Slack, Johanna Mathieu
Collaborators: • Dr. Joyashree Roy, Jadavpur University, Kolkata • Dr. Sampson, Resource Development International (RDI)
Sponsors: • National Collegiate Innovators and Inventors Alliance (NCIIA) • Haas Sustainable Products and Solutions (SPS) Program • UC Berkeley Blum Center for Developing Economies • UC Berkeley Big Ideas Marketplace/Bears Breaking Boundaries
Competition • Lawrence Berkeley National Lab (LDRD Funds) • Ingénieurs du Monde • Iqbal and Kamal Quadir • J. W. Saxe Memorial Fund • Schweizerische Studienstiftung • USEPA P3 Award Phase I-II • Associated Students of the University of California (ASUC)
10/13/09 Berkeley Arsenic Alleviation Group (BAAG) 22
![Page 23: BERKELEY LAB CIVIL AND ENVIRONMENTAL ENGINEERING ...gadgillab.berkeley.edu/wp-content/uploads/2012/06/WaTERConf_Addyetal... · • Dr. Joyashree Roy, Jadavpur University, Kolkata](https://reader033.fdocuments.in/reader033/viewer/2022042022/5e7993d59b9cb223ca6ff2c7/html5/thumbnails/23.jpg)
4/10/09 Berkeley Arsenic Alleviation Group (BAAG)