並列摘要
Settliing basin, removing sediment from intake water, can enhance the benefit of diversion works. In order to economize construction land as well as for agriculture ferterization purposes, it is impossible nor desireable to settle down all the inflow sediment. In stead, design of a settling basin is usually based on a prescribed trap efficiency. In this article, flume tests are performed and two type of settling are identified. Course particles settle first and form a progressing delta. Fine-particle siltation in the downstream backwater region is the other type. A new formula is proposed, which can estimate the effective traping capacity of a settling basin. By comparsion with other trap efficiency formulas, conclusion is made that particles with W_s/U_* value larger than 2 will sattle down totally in the settling basin and 100% removal. Different formulas, however, predict quite differently for the finer particles, especially for size between 0.1 and 0.05 mm, which is crucial in engineering aspects and worth in depth study.
延伸閱讀
- 陳樹群、巫仲明、張三郎（1997）。連續性沉砂池囚砂率之研究。中華水土保持學報，28(4)，271-278。https://doi.org/10.29417/JCSWC.199712_28(4).0001
- 俞維昇、許少華、宋長虹（1995）。沉砂池囚砂率計算方法之研究。台灣水利，43(3)，51-57。https://www.airitilibrary.com/Article/Detail?DocID=P20220602001-N202301030025-00006
- 林明煌、李伯當、柳志錫、李林少華、杜富麗（1992）。地盤下陷行為與水質鹽化的調查及地陷防治效應之研究。鑛冶：中國鑛冶工程學會會刊，36(3)，113-121。https://www.airitilibrary.com/Article/Detail?DocID=04510011-199209-202004160009-202004160009-113-121
- 吳瑞賢、余濬（1996）。滯留池節省容量及集中沉砂之設計方法探討。中華水土保持學報，27(1)，29-38。https://doi.org/10.29417/JCSWC.199603_27(1).0003
- 廖凌雲（2006）。Research on the sanitary sewage treatment by MBR system〔碩士論文，淡江大學〕。華藝線上圖書館。https://doi.org/10.6846/TKU.2006.00047