| abstract |
The present application is relate to a method and system for treating high nsalinity water, comprising the following steps: step 1, by a first membrane nconcentration unit, concentrating the raw water; step 2, with the assistance of na crystallization initiation unit, mixing the raw water concentrated, initiating ncrystallization by a seed crystal, and, discharging precipitated crystals; step 3, nwith the assistance of a crystallization termination unit, firstly, introducing the nresulting water of the crystallization initiation unit, then, terminating ncrystallization, secondly, discharging precipitated miscellaneous salts; step 4, nwith the assistance of a mechanical filter unit, the liquid discharged from the ncrystallization termination unit flowing through the mechanical filter unit, nremoving the residual seed crystal and floccules; step 6, with the assistance of na second membrane concentration unit, the concentrated salinity water nentering the second membrane concentration unit for concentration.nDRAWINGS nconcentrated water is discharged to na next-stage treatment system nconcentrated water flow back nsoftening agent nseed + nflocculatingagent niw water ncrystallization -,crystallization _ mechanical filter second r branie ninitiation unit -7termination unit unit con - taun unit nfirst me discharge adding scale resulting nconce tion unit miscellaneous inhibitor waler nresulting salts nwater nadding scale ninhibitor nFIG. 1 n701 n702 n11 7 n101 -201440 n56 n302 85 n0 n103 2 adding scale 501 ninhibitor n602 nadding scale \/V 20223 ninhibitor 301 102 nFIG. 2 n1/1 |