Establishment of long-term water storage of excavated organic relics by the creation of pseudo reserves environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 26560141
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Cultural assets study and museology
• Research Institution: Hirosaki University
• Principal Investigator: KATAOKA TARO 弘前大学, 人文学部, 特任助教 (80610188)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 遺跡出土水浸出土木材 / 溶存酸素 / 脱酸素フィルム / エアレーション / 考古学 / 嫌気性菌 / 好気性菌

Outline of Final Research Achievements

The archaeological waterlogged wood put on the water until conservation treatment. During water storage time, the waterlogged wood degradation proceeds by the action of microorganisms.
In this study, to consider a variety of measures to reduce the activity of water microorganisms, I conducted a study on the deterioration mitigation of the waterlogged wood at the time of water storage.
Dissolved oxygen content by storing the wood using deoxygenated film was found to be reduced, activity of anaerobic bacteria is not suppressed, occurrence of corruption gas was observed. On the contrary, it is possible to reduce the occurrence of corruption gas is by increasing the amount of dissolved oxygen, health and safety of the working environment in the room has been achieved. Since the deterioration of the wood are concerned by aerobic microorganisms in the medium- to long-term, it is necessary to save the treatment plan that takes into account the corresponding measures to these is performed.

Free Research Field

文化財科学