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PERFORMANCE VERIFICATION OF ANIMAL WATER TREATMENT TECHNOLOGIES THROUGH EPA'S ENVIRONMENTAL TECHNOLOGY VERIFICATION PROGRAM
Citation:
FREDERICK, R. M., T. G. STEVENS, M. ROUSH, J. CLASSEN, AND F. HUMENIK. PERFORMANCE VERIFICATION OF ANIMAL WATER TREATMENT TECHNOLOGIES THROUGH EPA'S ENVIRONMENTAL TECHNOLOGY VERIFICATION PROGRAM. Presented at EPA Science Forum 2005 - Collaborative Science for Environmental Solutions, Washington, DC, May 16 - 18, 2005.
Impact/Purpose:
To inform the public
Description:
The U.S. Environmental Protection Agency created the Environmental Technology Verification Program (ETV) to further environmental protection by accelerating the commercialization of new and innovative technology through independent performance verification and dissemination of information. ETV works in partnership with recognized testing organizations and stakeholder groups representing buyers; vendor organizations; consulting engineers; academic researchers; and with federal, state and local governments. NSF International, in cooperation with EPA, manages ETV's Water Quality Protection Center and collaborated with North Carolina State University (NCSU) to conduct performance verification tests on three solids separation technologies consisting of two inclined screens and a centrifuge designed for swine waste treatment. Swine production has recently received heightened attention both in North Carolina and nationally because of the industry's growth and the associated problems of waste management. Several problems related to treating solids in the wastewater include the increased organic load placed on the treatment system requiring larger overall capacities and lower usable volume because of settled solids accumulating on the bottom of the lagoon or treatment vessel. Efficient solids separation has been a desired part of a total waste treatment system. Although these systems can reduce the amount of suspended solids entering treatment, they require time and attention to keep them operating properly. Performance verification testing was conducted at NCSU's Lake Wheeler Road Field Laboratory, a farm designed and operated as a research and teaching facility. Analytical parameters assessed during the verification tests included: total, volatile and suspended solids; total organic carbon; total Kjeldahl nitrogen; ammonia nitrogen; total and ortho phosphorous; potassium; chloride; copper; zinc; NPK ratio; pH; and, conductivity.