AN INVESTIGATION OF BIOLOGICAL INTERFERENCE IN WHOLE EFFLUENT TOXICITY TESTING OF A MUNICIPAL WASTEWATER
Abstract:A two-year study was initiated to develop a strategy for addressing intermittent failures of chronic Whole Effluent Toxicity (WET) tests with Pimephales promelas, at the Riverview Wastewater Treatment Plant. The evaluation included a study of collection system water quality, plant performance, and a modified Toxicity Identification Evaluation (TIE). The collection system and plant were eliminated as vectors for the toxic agent. The modified TIE results raised the possibility of biological interference. This interference may have produced the periodic WET test failures. Adjustments were made to the sampling and TIE methodology to isolate the source and to identify the biological agent. A fungi was identified to the genus level, Tricophyton sp. and preliminary results supported the hypothesis that a pathogenic microorganism resided in algae growth within the plant effluent flume. The TIE provides an excellent tool for utilities for finding and identifying confounding factors in the WET testing.
Document Type: Research Article
Publication date: 2000-01-01
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites