State Water Resources Research Institute Program


Project ID: 2009NC120B
Title: Protecting Receiving Waters: Removal of Biochemically Active Compounds from Wastewater by Ozonation and Activated Carbon Adsorption Processes
Project Type: Research
Start Date: 3/01/2009
End Date: 2/28/2010
Congressional District: 02
Focus Categories: Treatment, Wastewater, Water Quality
Keywords: endocrine disrupting chemicals, pharmaceutically active coupounds, adsorption, biodegradation, ozidation, wastewater treatment, water reuse
Principal Investigator: Knappe, Detlef ; de los Reyes, Francis
Federal Funds: $ 25,778
Non-Federal Matching Funds: $ 44,455
Abstract: The presence of biochemically active compounds (BACs) such as endocrine disrupting chemicals (EDCs), antimicrobial compounds, and other pharmaceutically active compounds in the aquatic environment is an issue of increasing concern. For example, the presence of EDCs has caused intersexuality and gender bending in fish, and the presence of antimicrobial compounds may lead to the evolution of antibiotic-resistant bacteria. The goal of the proposed research is to evaluate two advanced wastewater treatment strategies (ozonation and activated carbon adsorption) that, when applied individually, are expected to provide (cost-)effective barriers against the release of BACs into North Carolina surface waters. The objectives of this research are (1) to measure oxidation kinetics of six model BACs during ozonation of NC wastewater matrices and, with the aid of a mathematical model, predict ozone doses required to achieve BAC oxidation levels of 90 and 99% for wide range of BACs and (2) to identify suitable powdered activated carbon (PAC) types and effective PAC addition points in wastewater treatment plants and determine PAC doses that yield BAC removals of 90 and 99%. The experimental portion of the proposed research will be conducted with six model BACs (bezafibrate, diazepam, diclofenac, N-ethinyl estradiol, ibuprofen, sulfamethoxazole) that are commonly found in municipal wastewater treatment plant effluents. The selected BACs represent the spectrum of easily, moderately, and poorly oxidizable compounds by ozone and easily, moderately, and poorly adsorbable compounds by activated carbon. Benefits of the proposed research include new information for NC utilities on the (cost-)effectiveness of advanced wastewater treatment processes that, when incorporated into NC WWTPs, would lead to improved habitat for aquatic life and improved water quality for drinking water treatment plants that rely on surface water sources impacted by upstream WWTP discharges.

Progress/Completion Report, 2009, PDF
Progress/Completion Report, 2010, PDF

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://water.usgs.gov/wrri/09grants/2009NC120B.html
Page Contact Information: Earl Greene
Page Last Modified: Wednesday, 05-Mar-2014 09:05:04 EST