高速砂ろ過の基礎的特性

概要

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This is an experimental study of high-rate filtration with uniform sand，using the micro-floc feeding system shown in Fig. 1.The purpose of this study was to examine the effects of influent water turbidity，filtration rate，and the size of uniform sand on the length of the filter run and the quality of filtrate. The filter run was terminated when a 10 ft. net loss of head in the filter was reached. The results obtained show that，among other factors，the filtering velocity is contributive to the length of the filter run and also that the size of uniform sand is more contributive to the filtrate quality than others. ln addition，a sand filter should be designed on the basis of the higher filtering velocity.　Some more observations are presented.
北見工業大学の論文