文档介绍：ulation Behavior in Hexagonal-hole Grid System
Dealing with High Turbidity Water
Hui Wang 1, Xing Li 1, Qin Wang 2, Jie Liu 2
1 College of Architecture and Civil Engineering 2 College of Chemistry & Environmental Science
Beijing University of Technology Hebei University
Beijing, China Hebei, China
Wh13@ Tel:********** 86wangqin@
Abstract—The hexagonal-hole grid ulation system is very nephelometer on a model WGZ~200(Shanghai Xin Rui
efficient to deal with high turbidity water of 850 NTU and the Instrument Co., Ltd); Coagulating and mixing instrument on a
color of 2300 PCU. The best conditions are determined through model MY-3000-6A (Qiajiang MeiyuInstrument Co., Ltd);
adjusting grid arrangements, concentration and dosage of Color measurement on a model HI93727 (Beijing Hanake
ulating agent. When the water velocity of flow is 100 L/h, Scientific Instrument Co., Ltd); Micro-camea on a model B1
the grid 2,1,3 module order is the best one. The water turbidity (Motic China Group Co., Ltd).
decreased to NTU and color to 110 PCU, the removal rate of Reagents: Clay, PAC
turbidity is % and that of color is %. The average
B. Water
-3
effective mass density ρe of floc is 6066 Kg·m , the average
In order to make the clay have regularly size and
equivalent size dST is , the average free-for-speed V is
-1