Abstract
Effluent from the septic tanks of five households was sampled daily for 15 days. Temperature, redox potential, conductivity and biochemical oxygen demand (BOD5) were measured and samples were analyzed for N, P, Ca, Mg, Na, K, Zu, Zn, Cd, Cr, Pb, Mg, and linear alkylate sulphonate (LAS). Samples from the five households differed in the values obtained but the differences were small. Little daily variation occurred in the effluent from any one household. The effluent was in a reduced and anaerobic condition with almost all the N and P occurring in the inorganic form in solution. The effluent concentration N was about 100 mg l−1 and P concentration about 15 mg l−1. The mean annual N and P loading in the effluent over the five households was 3.8 kg N/head yr and 0.6 kg P/head · yr. Copper and Zn were the only trace metals of any significance and their concentrations were less than in tap water. The chemical composition of the effluent was very similar to that found in New Zealand, Canada, and U.S.A.
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References
American Public Health Association: 1971, Standard Methods for the Examination of Water and Waste Water, 13th Edition, New York: American Public Health Association.
Anon.: 1978, Metropolitan Water Supply Sewage and Drainage Board, Perth, W.A., Annual Report.
Bouma, J., Ziebell, W. A., Walker, W. G., Olcott, P. G., McCoy, E., and Hole, F. D.: 1972, University of Wisconsin — Extension, Information Circular Number 20.
Brandes, M.: 1976, Ministry of the Environment, Research Report W61, Ontario, Canada.
Clesceri, N. L.: 1977, Rensselaer Fresh Water Research Institute, Report 76-10.
Crisp, P. T., Eckert, J. M., and Gibson, N. A.: 1975, Anal. Chim. Acta. 78, 391.
Dick, W. A. and Tabatabai, M. A.: 1977, Soil Sci. Soc. Am. J. 41, 511.
Gibbs, M. M.: 1977, N.Z. J. of Science 20, 255.
Gilbert, P. A. and De Jong, A. L.: 1978, in R. Porter and D. W. Fitzsimons (eds.), Phosphorus in the Environment: Its Chemistry and Biochemistry, Elsevier, Amsterdam, The Netherlands, pp. 253–268.
Laak, R.: 1974, in J. H. T. Winneberger (ed.), Manual of Grey Water Treatment Practice, Ann Arbour Science, Michigan, pp. 68–78.
La Valle, P. D.: 1973, ‘Canada- Ontario Agreement on Great Lakes Water Quality’, Project No. 72-5-14 Ministry of the Environment.
Syme, G. J.: 1979, private communication.
Murphy, J. and Riley, J. P.: 1962, Anal. Chim. Acta 27, 31.
Viraraghavan, T. and Warnock, R. G.: 1976, Water, Air, and Soil Pollut. 5, 281.
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Whelan, B.R., Titamnis, Z.V. Daily chemical variability of domestic septic tank effluent. Water Air Soil Pollut 17, 131–139 (1982). https://doi.org/10.1007/BF00283296
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DOI: https://doi.org/10.1007/BF00283296