Abstract
Algae, bacteria, and zooplankton were counted in samples drawn from 120- and 150-m2 high-rate algae ponds (those used for wastewater treatment). The fraction of nondegraded organic matter was estimated by comparing the ratio of biological and chemical oxygen demands and the bacterial, algal, and zooplankton counts to volatile suspended solids. With pond effluent quality at an acceptable level (around 18 mg of dissolved biological oxygen demand), the algae/bacteria ratio was around 1:100 or even higher, the zooplankton count was negligible, and the bacterial concentration was approximately 1011 cells per liter by direct count. The data for bacteria exceeded those of earlier studies by one to three orders of magnitude.
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Selected References
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- Bare W. F., Jones N. B., Middlebrooks E. J. Algae removal using dissolved air flotation. J Water Pollut Control Fed. 1975 Jan;47(1):153–169. [PubMed] [Google Scholar]
- Cavari B., Grossowicz N. Seasonal distribution of vitamin B12 in Lake Kinneret. Appl Environ Microbiol. 1977 Aug;34(2):120–124. doi: 10.1128/aem.34.2.120-124.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soeder C. J. Zur Verwendung von Mikroalgen für Ernährungszwecke. Naturwissenschaften. 1976 Mar;63(3):131–138. doi: 10.1007/BF00600487. [DOI] [PubMed] [Google Scholar]