从 "华光角一号 "沉船木材中提取可溶性盐和硫化铁

IF 2.4 2区 农林科学 Q1 FORESTRY Forests Pub Date : 2023-12-13 DOI:10.3390/f14122432
Xueyu Wang, Naisheng Li
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引用次数: 0

摘要

沉船木材通常含有可溶性盐和硫化铁,对其稳定性构成威胁。因此,在保护过程中必须进行脱盐处理。本研究采用去离子水和乙二胺四乙酸二钠盐(EDTA-2Na)溶液萃取 "华光角一号 "沉船 511 块木质成分中的可溶性盐和硫化铁。萃取过程持续了 1120 天,期间通过测量浸泡液的电导率和铁含量来监测萃取进度。结果表明,当浸泡液的电导率保持在 80~100 μs/cm 和铁含量保持在 8~15 mg/L 时,萃取实验达到终点。从 "华光角一号 "沉船木材中提取的铁超过 143.35 千克。提取后,木材中可溶性盐离子含量低于 5 μg/g,铁含量低于 5%。木材已恢复原色,并有一定程度的降解。"华光角一号 "是第一艘完成全部木质构件海水淡化处理的大型海洋沉船。这项研究为大型木质沉船的海水淡化处理提供了指导。
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Extraction of Soluble Salts and Iron Sulfides from the Wood of the “Huaguangjiao I” Shipwreck
Shipwreck wood often contains soluble salts and iron sulfides, which pose a threat to its stability. Therefore, desalination treatment must be carried out during protection. In this study, deionized water and ethylene diamine tetraacetic acid disodium salt (EDTA-2Na) solution were used to extract soluble salts and iron sulfides from the 511 wood components of the “Huaguangjiao I” shipwreck. The extraction lasted for 1120 days, during which extraction progress was monitored by measuring the electrical conductivity and iron content of the soaking solution. The results indicated that the extraction experiment reached its endpoint when the conductivity of the soaking solution was maintained at 80~100 μs/cm and the iron content was maintained at 8~15 mg/L. More than 143.35 kg of iron were extracted from the wood of the “Huaguangjiao I” shipwreck. After extraction, the content of soluble salt ions in the wood were less than 5 μg/g, with an iron content below 5%. The wood has returned to its original color and with a certain degree of degradation. “Huaguangjiao I” was the first large-scale marine shipwreck to complete the desalination treatment of all wooden components. This study provides guidance for the desalination treatment of large-scale wooden shipwrecks.
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来源期刊
Forests
Forests FORESTRY-
CiteScore
4.40
自引率
17.20%
发文量
1823
审稿时长
19.02 days
期刊介绍: Forests (ISSN 1999-4907) is an international and cross-disciplinary scholarly journal of forestry and forest ecology. It publishes research papers, short communications and review papers. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.
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