WATER TREATMENT STATION FOR DIFFERENTIAL WATER CONSUMPTION Russian patent published in 2019 - IPC C02F9/08 C02F1/469 C02F1/24 C02F1/32 B01D36/00 B01D61/42 E03B1/00 E03B7/04 E03B7/07 

FIELD: construction.

SUBSTANCE: invention relates to water supply to settlements located in coastal areas with fresh water deficiency. Water treatment station for differentiated water consumption includes settlements water supply system, main line containing pre-mechanical filter 1, sea water supply pump 2 to pre-processing unit 3 consisting of reagent treatment module with floatation system. Pre-processing unit 3 has three outlets, one of which is connected to sediment processing unit 4, and two others are connected to lines equipped with pumps 5, 10 and tangential fine filters 6, 11. Each of tangential filters has two outlets, one of which is connected by pipeline with sediment processing unit 4. Other output of one of tangential filters 11 is connected to distillation unit 12, and the output of second 6 is connected to nanofiltration unit 7. Nanofiltration unit 7 is connected to a pure drinking water accumulator 9 by means of a pipeline equipped with an ultraviolet processing module 8. Distillation unit 12 has three outlets, one of which is connected to light water production unit 13 connected to agricultural water supply system of settlement 16 and connected pipeline equipped with ultraviolet processing module 8, with accumulator of clean drinking water 9. Second outlet of distillation unit 12 is connected to the system of household and industrial water supply of populated point 17, and the third one is connected to electrodialysis unit 14. Electrodialysis unit 14 has two outlets, one of which is intended for water discharge, is connected to agricultural water supply system 16, and second, intended for output of concentrated brines, is connected to evaporator 15 to produce solid sea salt.

EFFECT: invention increases efficiency of desalination processes, prevents membrane clogging, reduces scaling and reduces environmental load.

7 cl, 1 dwg, 2 tbl