EVALUATION OF A MODIFIED-MODEL FOR DEEP BED FILTRATION

被引：33

作者：

TOBIASON, JE

VIGNESWARAN, B

机构：

[1] Environmental Engineering Program, Department of Civil Engineering, University of Massachusetts at Amherst, Amherst

来源：

WATER RESEARCH | 1994年 / 28卷 / 02期

基金：

美国国家科学基金会;

关键词：

DEEP BED FILTRATION; NONDISPERSE; PARTICLE REMOVAL; HEADLOSS; EXPERIMENTAL RESULTS; MODELING; MODEL PARAMETERS;

D O I：

10.1016/0043-1354(94)90271-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The status of fundamental models of the performance of deep bed filters is reviewed and a modified model for monodisperse suspensions is presented. Particle removal is described by a modified version of the Vigneswaran and Tulachan model for the complete cycle of transient filter performance. A modification of the O'Melia and Ali approach and two linear approaches for headless modeling are also described. The sensitivity of model predictions to variations in parameter values is presented. A comparison with experimental results for ripening and steady state conditions shows that particle removal can be described well while the observed linear (with time) headless results cannot be described by modifications of the O'Melia and Ali approach. A surface area based linear headless model appears to capture the effects of suspended particle size on headless development while effects of coagulant type must be described by changes in model parameter values.

引用

页码：335 / 342

页数：8

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