Establishment of electrochemical method for recycling sediment

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18158
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Hiroshima University
• Principal Investigator: TOUCH NARONG 広島大学, 工学研究科, 特任助教 (50707247)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 有機汚泥 / 電子制御 / 解離 / 硫化水素 / 底生生物 / 有機物分解 / 肥料 / 電子伝達

Outline of Final Research Achievements

The purposes of this study is aim to propose simple and economical methods to　recover or supply electrons to sediment for the sediment treatment, and to　examine the potential of using treated sediment as useful resources. (1) Electron recovery can dissociate metal complexes within sediment, and supplying a small amount of electrons to the sediment in the course of electron recovery can enhance the decomposition of organic matter. (2) Electron recovery from sediment can improve the reduction level of sediment, leading to the restoration of benthos inhabitation. (3) Electron-recovered sediment (treated sediment) can be used as an agriculture fertilizer. (4) Treated sediment can be used as a mediator in sediment microbial fuel cells (SMFCs), which can increase the performance of SMFCs. (5) Mixing treated sediment with sediment can facilitate the decomposition of organic matter within the mixed sediment.

Free Research Field

工学