TY - Data T1 - Tianjin Jinhai Lake Water Desalination System Freshwater Production and Overall Water Recovery Rate Dataset (July-September 2020) A1 - Du runhong DO - 10.12072/ncdc.MDBW.db0016.2021 PY - 2021 DA - 2021-10-22 PB - National Cryosphere Desert Data Center AB - The lake water of Jinhai Lake was desalinated by reverse osmosis/nanofiltration system after pretreatment by precision filtration-ultrafiltration. The main investigation of the desalination system in different mixing methods and different operating pressure under the water production and water recovery rate. After the pressure and flow rate were stabilized for half an hour, the water yield of the desalination system was recorded and the water recovery rate was calculated. The desalination membranes were commercialized polyamide 4040 rolled nanofiltration and reverse osmosis membrane modules (VNF2 and ULP100, Guiyang Times Walton Co., Ltd.). The operating pressure was 1.3-1.8MPa, the salt content of the feed water was 7.5g/L, the water temperature was 30±2℃, the feed water flow rate was 2m3/h, and the number of mixed membrane modules was 6-8. Measurement accuracy is taken to two decimal places. Desalination system fresh water production is greater than 1.2m3/h, water recovery rate is higher than 60%, to achieve the task book assessment indicators. This dataset is mainly applied to the study of brackish water desalination. DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/b5611b5b-4a0b-4af3-8fa3-3c5b9f46c99b ER -