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Journal AWWA - Assessing the Effects of Storage Tank Design on Water Quality AWWA期刊-评估储罐设计对水质的影响
发布日期: 1993-07-01
进行了一项研究,以评估储罐设计和运行对混合制度和出水水质的影响。对直径与高度比为3.5:1至0.4:1的三个储罐的进水和出水流量进行了余氯监测。还测量了每个水箱水柱内的氯含量。尽管氯气剖面显示,在高径比较大的储罐中存在一些分层现象,但完全混合模型在描述所有三个储罐的混合行为方面比塞流模型更准确。模型进一步表明,随着容积变化的减小,完全混合池的出水水质恶化。 就出水水质而言,竖管是最不理想的水箱设计。作者得出结论,如果所有储层或多或少都表现为完全混合反应器,那么储层的设计应确保最大的体积变化。包括11个参考文献、表格、图表。
A study was conducted to assess the effects of storage tank design and operation on mixing regimes and effluent water quality. The influent and effluent flows of three tanks with diameter-to-height ratios ranging from 3.5:1 to 0.4:1 were monitored for chlorine residual. Chlorine levels were also measured within the water column of each tank. Although chlorine profiles revealed some stratification in tanks with large height-to-diameter ratios, completely mixed models were more accurate than plug-flow models in representing the mixing behavior of all three tanks. Modeling further indicated that the quality of the effluent from completely mixed tanks deteriorated with decreasing volumetric change. Standpipes were the least desirable tank design with respect to effluent water quality. The authors conclude that if all reservoirs behave more or less as completely mixed reactors, then storage reservoirs should be designed to ensure maximum volumetric change. Includes 11 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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