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Full-Scale Adsorption of HAA5 by Activated Carbon 活性炭对HAA5的全尺寸吸附
发布日期: 2001-01-01
本文描述了ZJ15活性炭对HAA5吸附特性的研究,包括研究中设计参数的全面应用。结果表明,Langmuir等温方程是描述吸附结果最合适的方程,相关系数大于95%。在多个吸附质条件下得出的吸附等温线方程为:DCAA:qe=2000?0.059Ce/(1+0.059),TCAA:qe=5000?0.154Ce/(1+0.154Ce),MBAA:qe=1429?0.064Ce/(1+0.064Ce),DBAA:qe=10000?0.001Ce/(1+0.001Ce)。由于相关系数小于60%,因此此处未报告MCAA的等温线方程。 提出了不同条件下卤乙酸吸附特性差异的原因及其各自的吸附容量。在柱试验中,观察到MTZ在1小时后形成,在本研究中,发现其厚度为20 cm。研究发现,ZJ15活性炭在去除HAA5方面非常有效,在常规全尺寸操作条件下,再生时间估计为3年。提供了用于去除HAA5的GAC的设计和运行参数。包括14个参考文献、图表。
This paper describes an investigation of the adsorption characteristics of HAA5 by ZJ15 activated carbon, including full-scale application of the design parameters from the research. It was found that the Langmuir isotherm equation was the most suitable equation to depict the adsorption results with a correlation coefficient of more than 95%. The resulting adsorption isotherm equations for multi-adsorbate conditions were determined to be: DCAA: qe=2000¿0.059Ce/(1+0.059), TCAA: qe=5000¿0.154Ce/(1+0.154Ce), MBAA: qe=1429¿0.064Ce/(1+0.064Ce), DBAA: qe=10000¿0.001Ce/(1+0.001Ce). The isotherm equation for MCAA is not reported here because the correlation coefficient was less than 60%. Reasons for differences in the adsorption characteristics of haloacetic acids under different conditions and their respective capacities are proposed. In column test, the MTZ was observed to be established after one hour and, in this study, its thickness was found to be 20 cm. ZJ15 activated carbon was found to be very effective in removing HAA5, with an estimated 3 year regeneration time under conventional full-scale operating conditions. Design and operational parameters for this GAC for HAA5 removal are provided. Includes 14 references, 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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