Biotic and Abiotic Features of a Deep Wastewater Treatment Lagoon Used for Agricultural Irrigation

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The purpose of this investigation was to gain information about the dynamics of a deep wastewater treatment lagoon. The experimental lagoon was fed with secondary effluent from a municipal wastewater treatment plant. Biotic and abiotic profiles were recorded throughout the water column between July 1996 and December 1997. Influent and effluent were also sampled. Stable thermal stratifications were produced during the summer, reductions in sanitary indicators were observed, and the best results were obtained during the mixing period. Decreases in total nitrogen levels were also observed, with best results obtained during the stratification period. Conductivity showed no great seasonal variations, with only a slight increase in effluent conductivity. At no time was its level beyond the usual range in agricultural irrigation (0 to 3000 S/cm).


Document Type: Research Article


Publication date: March 1, 2000

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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