Abstract
In general, large amount of electric power in a sewage treatment plant is consumed exclusively by operating the aeration process. To save the electric consumption, a novel oxygen supply apparatus was designed to enhance oxygen transfer efficiency by contacting liquid film of target water and its surrounding atmosphere without external electric power needs. In addition to enhance the effective of interfacial contacting area between air and water, some important parameters viz. optimum shape of air bubble collecting parts, etc., were examined for more efficient supply of oxygen in the condition of low air supplied. In this paper, using of relevant parameters related to the performance results of lab-scale experiment was optimized for pilot-scale apparatus designation.
