The paper considers factors that determine the oxygen balance in extreme climate waste stabilisation ponds during the critical spring warm-up period. At this time BOD load on the pond is a maximum, due to accumulation of wastewater under the ice during the winter. The paper describes the operation of a typical cold climate WSP and the events leading to a balanced steady state system as spring d...

SYMPOSIUM PROCEEDINGS 1964 Martin, R. G. (1963). J. biol. Chem. 238, 257. Monod, J. (1942). Recherches sur la Croissance des Cultures Bacte‘riennes. Paris: Hermann et Cie. Monod, J., Changeux, J.-P. & Jacob, F. (1963). J. mol. Biol. 6, 306. Moyed, H. S. (1960). J. biol. Chem. 235, 1098. Moyed, H. S. & Umbarger, H. E. (1962). Physiol. Rev. 42, 444. Nara, T., Samijema, H., Fugita, G., Ito, M., Na...

The reduction kinetics of Fe(III)citrate, Fe(III)NTA, Co(III)EDTA-, U(VI)O(2) (2+), Cr(VI)O(4) (2-), and Tc(VII)O(4) (-) were studied in cultures of dissimilatory metal reducing bacteria (DMRB): Shewanella alga strain BrY, Shewanella putrefaciens strain CN32, Shewanella oneidensis strain MR-1, and Geobacter metallireducens strain GS-15. Reduction rates were metal specific with the following rat...

The kinetics of mineralization of carbonaceous substrates has been explained by a deterministic model which is applicable to either growth or nongrowth conditions in soil. The mixed-order nature of the model does not require a priori decisions about reaction order, discontinuity period of lag or stationary phase, or correction for endogenous mineralization rates. The integrated equation is simp...

Hauge, J. G., MacQuillan, A. M., Cline, A. L. & Halvorson, H. 0. (1961). Biochem. biophy8. Be8. Commun. 5, 267. Jacob, F. & Monod, J. (1961). J. molec. Biol. 3, 318. Lowry, 0. H., Rosebrough, H. J., Farr, A. L. & Randall, R. J. (1951). J. biol. Chem. 193, 265. Magasanik, B., Neidhardt, F. C. & Levin, A. P. (1958). In Phy8iological Adaptation, p. 159. Ed. by Prosser, C. L. Baltimore: Lord Baltim...