Study of the temperature requirements for ponds of treatment facilities for Eichhornia cultivation

Vladimir A Dmitriyenko,Natalya V Merenkova,Irina N Kokunko,Sergey N Armeyskov,S Bratan

doi:10.1051/e3sconf/202019302016

Vladimir A Dmitriyenko, Natalya V Merenkova + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/202019302016

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Abstract

The article shows the need for desalination of underground waters in the city of Shakhty pumped out from old mine workings. The existing scheme of purification of pumped underground waters from iron is presented. There is a high content of salts in the purified waters, which pollute the river. The positive qualities of phyto-purification with the use of water hyacinth - Eichhornia are considered. A model for predicting a decrease in temperature in the winter period, developed on basis of the results of studies of water temperature requirements in ponds of sedimentation tanks of mine water, is presented.

Highlights

Water on our planet is the most important component of life, the state of water resources largely determines the environmental safety of entire regions
Numerous studies abroad and in our country indicate that Eichhornia very effectively cleans waste water from chlorides, sulfates, nitrates, ammonium nitrogen and pathogenic microorganisms, while COD is significantly reduced and BOD is reduced two-fold
The research results show that the temperature requirements of treatment facilities makes it possible to cultivate Eikhhornia almost all year round, if the ponds are protected from wind, at a distance of 0.2 m from the water surface the average air temperature is lower than the water temperature by 2.3 °C, with a wind speed of no more than 3 m/s

Summary

Introduction

Water on our planet is the most important component of life, the state of water resources largely determines the environmental safety of entire regions. Human activities make a huge contribution to the deterioration of the state of water bodies. A special place in the violation of the ecological state of rivers and lakes is occupied by the mining industry, since its functioning is associated with the impact on the hydrogeological situation of vast territories [1,2,3]. Opening up and pumping out huge volumes of water to the surface of the earth during the long service life of mining enterprises is accompanied by the removal of large amounts of solid particles and dissolved salts, since water is an excellent solvent. Pumping volumes often do not allow to fully ensure highquality purification of groundwater from salts, which leads to pollution of water bodies [8]

Significance of the problem

Discussion of research results

Conclusions