Study on Fine Particulate Matter from Viewpoints of Limnological Engineering and Application to Environmental Biochemistry

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14308
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Tohoku University
• Principal Investigator: Umeda Makoto 東北大学, 工学研究科, 准教授 (10447138)
• Co-Investigator(Kenkyū-buntansha): 中川 書子 名古屋大学, 環境学研究科, 准教授 (70360899)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 環境水理学 / 湖沼 / 懸濁物質

Outline of Final Research Achievements

Behavior of fine particulate matter in lakes and reservoirs is deeply related to environmental and engineering problems in those water bodies. Measurements were conducted in thermally stratified reservoirs on hydrodynamic conditions of water flow and fine suspended particles. The results showed velocity fluctuations of the same magnitude in vertical direction as horizontal directions, which could be one of the main factor of long term suspension of fine particular matter in the water bodies. As for chemical behavior of suspended particles, quantification of oxygen consumption rate in those environment of water column, inside of particle, and bottom sediment was undertaken using triple oxygen isotope tracer. The results of the measurements indicated validity of the method proposed in this study in the environment of fast oxygen consumption.

Free Research Field

環境水理学