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There are explained the statistical fundamentals of the estimation of the number of bacteria by means of the most‐probable‐number method (MPN method) inclusive of the confidence intervals and the probability of the sample results. On this basis, a program in Turbo‐Pascal is prepared for the...
Many dissolved organic compounds in waters and wastewaters can be effectively removed by adsorption processes. The design of such processes requires the modelling of adsorption equilibria in multi‐solute systems. In this paper a review on the most useful equilibrium models for multicomponent...
The predatory potentiality of G. affinis and P. reticulata fishes on cyclops was tested by ‘no‐choice’ and ‘choice’ experiments. In ‘no‐choice’ experiments predation increased significantly with the number of cyclops exposed (1, 3, 5, 7 and 10 preys) and decreased with the increase in the water...
The paper deals with the changes in composition and density of bottom fauna of the Ganga river at Buxar and Ballia in relation to soil texture and water quality observed between March 1984 and Feb. 1986 with its possible role in the seasonal abundance of M. birmanicum choprai. No marked...
A method for the determination of organohalogens by gas chromatography using electron capture (EDC) and mass‐spectrometric (MS) detection was developed for sediments from lakes and sludges of water treatment plants. The method was described and separate techniques for sample preparation were...
Zooplankton of the lake Jaisamand was represented by 50 taxa out of which 22 were Rotifera, 18 Cladocera, 5 Protozoa, 3 Copepoda and 2 Ostracoda. The total zooplankton exhibited a bimodal pattern with the first peak occurring in December and the second of a little less magnitude in June. The...
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