Risk eLearning - Session III - Arsenic - Interventions, April 15th!
The NIEHS Superfund Research Program (SRP) invites you to join us for the final session of a three part Risk e-Learning series "Arsenic & Health and Remediation Applications"�:�
Session III - Arsenic Interventions
April 15, 2013, 2:00 p.m. - 4:00 p.m. EDT.
To register for this webinar please see the Clu-in Training & Events webpage.
Presenter: Joseph Calo, Ph.D., Brown University
Presentation title: Zero-valent Iron (ZVI) Removal of Arsenic in a Spouted Vessel
Presenter: Girish Srinivas, Ph.D., TDA Research Inc.
Presentation title: System for Decontaminating Well Water for Drinking
In the first presentation, SRP Researcher Joseph Calo, Ph.D., will discuss his team's latest research on developing a spouted vessel/fixed bed filter system for the removal of arsenic from water. The system uses zero-valent iron (ZVI) particles circulating in a spouted vessel that continuously generates active colloidal iron corrosion products. These corrosion products are generated by the self-polishing� action between ZVI source particles rolling in the moving bed that forms on the conical bottom of the spouted vessel. This action also serves as a surface renewal mechanism for the particles and provides for maximum ZVI material utilization. The colloidal material produced in this fashion is continuously captured and concentrated in an internal fixed bed filter where arsenic complexation occurs. This system has been shown to reduce 100 µg/L of arsenic to below detectable levels in less than an hour. Calo's presentation will focus on the spouted vessel/fixed bed filter system for removing arsenic from water, and he will share his most recent research results.
In the second presentation, NIEHS SBIR Researcher Girish Srinivas, Ph.D., will discuss research being conducted by TDA Research, Inc. (TDA) to develop a cost effective, simple point-of-use (POU) water purifier. The purifier is based on capacitive deionization (CDI) for removing problematic toxic ionic contaminants from well water not attached to a large public water works. TDA's CDI technology can effectively remove perchlorate, nitrate, arsenic, lead, and other harmful inorganic ions from well water to meet EPA drinking water specifications in a simple, DC powered device. The technology can be used for POU applications (e.g., under the sink) in homes that use well water or in developing countries at well sites, where, if power is unavailable, it can be operated using a simple photovoltaic system.
Individuals with disabilities who need accommodation to participate in this event should contact Heather Henry (henryh at niehs.nih.gov, 919 541-5330). TTY users should contact the Federal TTY Relay Service at 800-877-8339. Requests should be made at least 5 business days in advance of the event.
Heather F. Henry, Ph.D.
Superfund Research Program
National Institute of Environmental Health Sciences
PO Box 12233 K-304
Research Triangle Park, NC 27709
Email: henryh at niehs.nih.gov