Eutrophication of Lake Water Microcosms: Phosphate versus Nonphosphate Detergents

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Science  19 Nov 1971:
Vol. 174, Issue 4011, pp. 827-829
DOI: 10.1126/science.174.4011.827


The eutrophication potentials of a phosphate-containing detergent and two phosphate-free detergents, as determined in oligotrophic algal microcosms after activated sludge treatment, were not significantly different. All activated sludge effluents, including those from detergent-free waste water, lowered the algal diversity of the microcosms to about the same extent below that of the lake water controls.