... and on the possibility of having the reservoir divided into compartments. The greater the retention time and the larger the number of compartments in series, the higher the efficiency of pathogen ... into account the type of livestock, the daily water requirements of each species, the chemicals added to the feed of the livestock to enhance the growth and to reduce the risk of disease, as ... concentrations in tributaries of the Great Lakes consider the quality requirements of the given watercourse, as well as of the lake system. Similarly, requirements for the protection of the marine environment,...