@article{oai:kitami-it.repo.nii.ac.jp:00006298, author = {海老江, 邦雄}, issue = {2}, journal = {北見工業大学研究報告}, month = {Jun}, note = {application/pdf, There are four types of the break-through of suspended particles into the effluent,i.e.: 1)Initial break-through which is usually complete in 30 min. to 1 hr. from the start of a filter run ; 2)Terminal break-through occurring toward the end of filter runs,especially when pretreatment is not sufficient ; 3)Break-through which is caused by the fluctuations of the influent turbidity ; and 4・)Break-through resultant from the increased filtration rate.   This paper is an experimental study of the above-mentioned fourth break-through,with the purpose to understand more clearly the filtration phenomena under the increased filtration rate,of which a period lasts for 30 min. from point of 1.5 m total head loss.  As a result, it was disclosed how the value of total head loss changed during the increased filtration rate,and that the magunitude of increase in filtration rate was more contributive to the % of break-through of suspended particles from sand filter than others. Some other observations are also presented.}, pages = {431--442}, title = {砂ろ過における懸濁粒子の砂層流出に関する研究-ろ速変動のある場合-}, volume = {3}, year = {1972} }