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Journal AWWA - Effect of Particle Size and Background Natural Organics on the Adsorption Efficiency of PAC AWWA期刊-颗粒大小和背景天然有机物对PAC吸附效率的影响
发布日期: 1990-01-01
本研究的目的是确定粉末活性炭(PAC)对典型合成有机化学品的吸附效率,评估颗粒大小和背景有机物的重要性,并开发预测PAC性能的程序。结果表明,使用较小尺寸的PAC可以显著改善性能,但当地下水中存在天然腐殖物质时,吸附速率和PAC容量显著降低。通过运行平衡和闭式间歇动力学试验,确定平衡常数和动力学常数,并使用方程式确定PAC在任何接触时间的去除效率,对连续搅拌槽式反应器中PAC去除痕量有机物的准确预测进行了预测。 包括33个参考文献、表格和图表。
The objectives of this study were to determine the efficiency of adsorption of powdered activated carbon (PAC) for a typical synthetic organic chemical, to evaluate the importance of particle size and background organics, and to develop a procedure to predict the performance of PAC. Results showed that performance can be significantly improved by using smaller-size PAC but that the rate of adsorption and PAC capacity are markedly reduced when naturally occurring humic substances are present in the groundwater. Accurate predictions of the removal of trace organics by PAC in a continuously stirred tank reactor were made by running equilibrium and closed-batch kinetic tests, determining equilibrium and kinetic constants, and using an equation to determine the removal efficiency of the PAC for any contact time. Includes 33 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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