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Countercurrent cascade air stripping for removal of low volatile organic contaminants



Countercurrent cascade air stripping for removal of low volatile organic contaminants



Water Research 24(5): 615-624



A novel modification of the conventional counter-current air-stripping process, introduced as "cascade air-stripping" is proposed for cost-effective removal of semi and low volatile organic contaminants from water. Developed from fundamental mass transfer concepts, this process is shown to accommodate larger air flow rates than the conventional counter current process, but at comparable pressure drops. The rationale behind its development, a mathematical model describing the process, and the results of a pilot scale demonstration study are presented in this paper. The pilot scale study served to validate the model, and to compare the performance of the cascade system against that of the conventional system under equal energy inputs.

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Accession: 007165918

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