%0 Dataset
%T Tianjin Jinhai Lake pretreatment effluent quality data set (July 20-23, 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/740bf7d6-a7e4-4b37-8c25-11365d924644
%W NCDC
%R 10.12072/ncdc.MDBW.db0021.2021
%A Du runhong
%K Brackish water;precision filtration;ultrafiltration;water quality;total dissolved solids;hardness;total organic carbon;particle size
%X The water quality report of the pretreated water sample of Tianjin Jinhai Lake collected in 2020 is obtained through the detection of the third-party testing organization, the national seawater and brackish water use product quality supervision and inspection center. The precision filtration system adopts filtration accuracy of 5 μ M bag filter element and melt blown filter element are connected in series, and the operating pressure of precision filter is 0.3MPa. The ultrafiltration system adopts polyvinylidene fluoride tubular membrane (average pore diameter 0.1) μ m. The inner diameter of membrane tube is 8mm, Tianjin haipur), the ultrafiltration operating pressure is 0.13mpa, the circulating flow is 43 ~ 45m3 / h, and the produced water flow is controlled at 2m3 / h. The test contents include calcium ion, magnesium ion, potassium, sodium, chloride, sulfate, manganese, iron, total organic carbon, chemical oxygen demand, total hardness, total alkalinity, dissolved total solids and particle size distribution. According to the standard test methods for drinking water (GB / T 5750-2006), water quality - Determination of potassium and sodium - Flame atomic absorption spectrophotometry (GB / T 11904-1989), determination of calcium and magnesium ions in industrial circulating cooling water - EDTA titration method (GB / T 15452-2009) and other standards, the test methods and processes are specified.