The results of a study on the development of a constructive and technological device for protect-ing water intakes of irrigation systems from blue-green algae

The article presents the information of the conducted experimental studies on the development of a constructive and technological device for the protection of water intakes of irrigation systems from blue-green algae. The purpose of this experiment was to determine the charge sign of large colonies of cyanobacteria. During the experiments, it was found that colonies of "living" cyanobacteria have a negative charge sign, since they detected a characteristic movement towards the anode, and colonies of "dead" algae showed no characteristic movement towards the anode or cathode, which indicates the absence of charge. Research on the development of a constructive and technological device for protecting water intakes of irrigation systems from blue-green algae was carried out in three stages: trial coagulation in laboratory conditions; filtration using ruffs in laboratory conditions; field studies at the pilot plant. In conclusion, a new technological and design method of improving the aquatic ecosystem, in the form of a water intake and treatment facility, is proposed. The introduction of the developed constructive and technological device for protecting irrigation system intakes from blue-green algae will give the operation mode of sprinkler machines stability, significantly reduce energy consumption for pumping irrigation water during the flowering of reservoirs, increase soil fertility, which will eventually increase crop yields and generally improve the functionality of the reclamation system.