%0 Dataset
%T Data set of overall desalination rate of Tianjin Jinhai Lake desalination system (July September 2020)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/6a396166-140e-4a82-8625-da9d8f93bee6
%W NCDC
%R 10.12072/ncdc.MDBW.db0015.2021
%A Du runhong
%K Nanofiltration;reverse osmosis;pretreatment;mixed loading;desalination rate
%X After precision filtration ultrafiltration pretreatment, the water of Jinhai lake is desalted by reverse osmosis / nanofiltration system. The desalination rate of the desalination system under different mixed loading modes and different operating pressures was investigated. The desalination system adopts commercial polyamide 4040 roll type nanofiltration and reverse osmosis membrane modules (vnf2 and ulp100, Guiyang times Wharton Co., Ltd.). After the pressure and flow rate are stable for half an hour, record the salt content of the produced water of the desalination system and calculate the overall desalination rate. The operating pressure is 1.3-1.8mpa, the salt content of influent is 7.5g/l, the water temperature is 30 ± 2 ℃, the influent flow is 2m3 / h, and the number of membrane modules is 6-8. The measurement is accurate to two decimal places. The overall desalination rate of the desalination system is greater than 90%, reaching the assessment index of the assignment.This data set is mainly applied to the study of brackish water desalination.