【摘 要】
：
The efficiency of a fluidized-bed flocculator with 800-μm particles of 1360 kg/m3 in density was studied,and the anti-shock capability of the unit was estimate
【机 构】
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Key Lab of Groundwater Resources and Environment,College of Environmental Science and Technology
论文部分内容阅读
The efficiency of a fluidized-bed flocculator with 800-μm particles of 1360 kg/m3 in density was studied,and the anti-shock capability of the unit was estimated for three kinds of industrial wastewater:heavy turbidity wastewater,dispersed dyeing wastewater and starch wastewater.Steady removal efficiency was contributed by the following characteristics of the flocculator:(1) the dynamic conditions,flocculation time and velocity gradient,which were stabilized at a steady level as the loading rate changed; (2) hydrodynamic characteristics,especially the considerable rise of expanded bed height with increasing superficial velocity when small and light particles were employed as the solid phase; (3) flocs growth characteristics in the fluidized bed,which caused the density and size of the flocs being maintained at a compensational relationship,resulted the stabilized settling velocity of the flocs.
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