American Water Resources Association
                         AWRA
                    Philadelphia
 

Current Research in Drinking Water

  • 21 Mar 2013
  • 11:30 AM - 1:30 PM
  • One Parkway Building, 1515 Arch Street, 18th Floor Conference Room, Philadelphia, PA
  • 62

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Current Research in Drinking Water

Graduate Student Presentations


Philadelphia Global Water Initiative - A Regional Model For Collaboration of WASH Activities

- Rupal Prasad, University of Pennsylvania 

The story of Philadelphia Global Water Initiative (PGWI) can serve as a regional model for non-profit organization for WASH projects.  Since 2006, experts from non-governmental organizations (NGOs), academia, government and other disciplines from the Philadelphia region have created a network to collaborate on global water and sanitation projects.  The heavy affiliation with the University of Pennsylvania and other regional universities, and developing a multidisciplinary network of organizations in Philadelphia with a common mission makes PGWI a unique organization in the United States.


The long-term goals of PGWI are: to serve as a model for other cities and regions to collaborate on WASH programs in developing nations and for Philadelphia to become an international educational hub for WASH. PGWI has created research projects for students to participate in conjunction with PGWI members and organizes an Annual Conference concerning WASH issues. This presentation will provide an overview of the progress made by the PGWI organization and its network in advancing its mission to help secure safe drinking water and sanitation in developing countries.

Electrochemical Oxidation for Water Treatment and the Limitation of Hazardous Byproducts 

- Adrienne Donaghue, Villanova University 

Today population growth jeopardizes the integrity of fresh water resources.  In order to maintain and preserve potable water supply, sustainable technologies must be utilized that increase treatment efficiency and pollutant removal.  Electrochemical oxidation poses a novel treatment technology capable of removing recalcitrant pollutants and treating saline waste brines.  Electrochemical oxidation has several advantages: it does not require the use of a catalyst, water oxidation generates strong oxidizing agents such as hydroxyl radicals (OH●) in situ, and the process can completely mineralize organic pollutants.  However, the formation of hazardous byproducts such as perchlorate (ClO4-) and chlorinated organics limits the application of electrochemical oxidation for water treatment applications.  This talk focuses on the significance of electrochemical oxidation with attention focused on understanding and limiting ClO4-production.

An Evaluation of Models to Predict the Activity of Environmental Estrogens

- Candice M. Johnson, Temple University

Trace amounts of natural hormones have been observed in wastewater effluents and receiving surface waters. These contaminants are suspected to cause deleterious effects in aquatic species. Prediction models could be used to estimate the net estrogenic activity of complex water matrices. However, the validity of such models becomes questionable if mixture components show synergism or antagonism in combination. In this study, the concentration addition (CA) and independent action (IA) models are evaluated for their ability to predict the net estrogenic burden of wastewater treatment plant influent and discharge water. It was shown that the models are applicable in laboratory-simulated samples; however, they failed to accurately predict the activity of wastewater samples. Comparison of the predicted and observed responses indicates that   estrogen receptor antagonists may be present and result in deviations from addtivity. The study highlights the occurrence of estrogenic contaminants in effluent waters and the challenges faced in developing risk assessment strategies.


Engineers:  This seminar does qualify for 1.0 Professional Development Hour (PDH).  A Certificate of Attendance will be available on site for AWRA-PMAS members only.  The meeting price for non-members who wish to receive a 2012 Certificate of Attendance for the PDH is $10.00 ($3.00 for meeting + $7.00 for certificate).  Please note: all registrations for lunch orders close by noon on the day before the presentation.  Thank you!

 
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