Peculiarities of the formation of bottom deposits in a closed-cooling pond

Conclusions

• 1. When cooling ponds are used for purposes of the fishing industry, arrangements of fishing cribs should be curved in siltation zones to eliminate supersaturation of the silts with organic substances and the formation of anaerobic conditions capable of generating hydrogen sulfide pollution on the bottom.

• 2. It is expedient to address the question concerning the preconceived creation of troughs (trenches) in cooling ponds. Such morphometric formations may rid the water masses and bottom soils of the remaining water area from polluting substances on the one hand, and create conditions for the periodic withdrawal of these substances from the pond together with silt deposits that have been accumulated on the other. Using computational methods, an example of the use of which is cited in the present study, it is possible to determine the rates of substance redistribution just as the time required for their concentration in a bottom trough, or in a protected section.