RO Water Treatment System Rau Seawater Thiab Brackish Dej Desalination

Txij li thaum xyoo 1960, RO desalination tau dhau los ua ib txoj hauv kev tseem ceeb kom tau txais cov dej haus thiab txoj hauv kev zoo los daws qhov tsis txaus ntawm cov dej tshiab. RO desalination tshuab yog tsuas yog siv nyob rau hauv ob yam: seawater desalination thiab brackish dej desalination.

Kwv yees li 30 feem pua ​​​​ntawm cov dej hiav txwv desalination hauv ntiaj teb tau paub los ntawm RO thev naus laus zis. Ntau tshaj 99 feem pua ​​​​ntawm cov ntsev ions hauv dej hiav txwv tuaj yeem raug tshem tawm los ntawm RO membrane kom tau txais cov dej tshiab. Israel's RO seawater desalination tshuab yog qhov siab heev. Xyoo 2005, Ashkelon tau tsim lub ntiaj teb loj tshaj plaws RO seawater desalination ntaus ntawv, nrog rau cov dej tawm ntawm 3.3 × 105m3·d-1, suav txog 15 feem pua ​​​​ntawm cov neeg Ixayees cov dej xav tau tag nrho. Tus nqi dej yog kwv yees li $0.53 m-3. Qhov chaw nres tsheb loj tshaj plaws RO desalination hauv kuv lub teb chaws yog nyob hauv Changhai County, Dalian, nrog cov khoom tso tawm txhua hnub ntawm 1000m3 dej tshiab thiab tus nqi dej tshiab ntawm 6 yuan m-3.

Brackish water is widely distributed in northern my country and contains many salt ions. It can be desalinated by RO technology to meet drinking water standards. The Malian River Basin Demonstration Project utilizes the brackish water resources of the Huanjiang River in the upper reaches of the Malian River, and adopts RO membrane technology to establish a 1000m3·d-1 brackish water desalination project. drinking water problem. Hangzhou Bay New District Water Plant] adopts ultrafiltration and RO combined equipment to treat the high salt water in the local reservoir. The quality of the effluent has been stable since it was put into operation for more than one year, which meets the national drinking water quality standards. He Xuwen, Yao Yongyi, Sun Wei, etc. have all conducted experimental research on brackish water with RO treatment. The system's desalination rate is >95 feem pua ​​​​, thiab cov dej ntws zoo zoo dua li cov qauv dej haus hauv lub tebchaws.

Desalination ntawm seawater thiab dej brackish yog ib txwm siv teb ntawm RO technology. Cov teeb meem uas twb muaj lawm yog tseem muaj kev khiav hauj lwm siab thiab siab zog noj. Tsis tas li ntawd, Cl- hauv dej hiav txwv kuj ua rau RO membrane zoo heev, uas cuam tshuam rau kev siv RO thev naus laus zis hauv daim teb no. kev txhawb nqa ntxiv hauv thaj teb. Tsis tshua muaj siab, tsis tshua muaj zog noj, tiv thaiv kev ua qias tuaj, tiv thaiv oxidation RO daim nyias nyias tau raug tsim los kom daws tau qhov teeb meem.