Hydrothermal carbonization of invasive plant biomass as a tool for its safe utilization and production of artificial humic substances

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
M. Kļaviņš, L. Ansone-Bērtiņa, J. Krūmiņš, O. Purmalis, L. Kļaviņa, Z. Vincevica-Gaile
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引用次数: 0

Abstract

Invasive plants may cause significant environmental risks by affecting biological diversity, ecosystem services, agriculture, and forestry. Safe utilization of invasive plant biomass by obtaining new outcome products useful for bioeconomics is a challenging but promising solution. Hydrothermal carbonization (HTC) presents a sustainable and cost-effective approach to transforming invasive plant biomass into new products while simultaneously supporting carbon capture aims. This study utilized invasive plants such as lupine [Lupinus polyphyllus Lindl.], Sosnowsky’s hogweed [Heracleum sosnowskyi Manden.], and Japanese knotweed [Polygonum cuspidatum Siebold & Zucc.] as biomass sources for HTC to produce artificial humic substances (AHS). The greatest impact on the yield of AHS (maximum gained yield 62%) has the duration of the HTC process (up to 6 h) and temperature of the treatment (from 160 up to 250 °C), as well as the catalyst used (an alkaline medium is preferable). During the HTC treatment, significant changes in the invasive plant biomass composition occur as indicated by the removal of labile components of organic matter. Obtained AHS are essentially similar to natural humic matter and have biostimulatory properties; thus, they can find application in agriculture and other areas of bioeconomics.
将入侵植物生物质水热碳化作为安全利用和生产人工腐殖质的一种工具
入侵植物可能会影响生物多样性、生态系统服务、农业和林业,从而造成重大环境风险。通过获得对生物经济有用的新成果产品来安全利用入侵植物生物质是一个具有挑战性但前景广阔的解决方案。水热碳化(HTC)是将入侵植物生物质转化为新产品的一种可持续且具有成本效益的方法,同时支持碳捕获目标。本研究利用羽扇豆 [Lupinus polyphyllus Lindl.]、Sosnowsky 猪笼草[Heracleum sosnowskyi Manden.]和日本结缕草[Polygonum cuspidatum Siebold & Zucc.]等入侵植物作为 HTC 的生物质来源,生产人工腐殖质(AHS)。对人工腐殖质(AHS)产量影响最大的因素是 HTC 处理过程的持续时间(最长 6 小时)、处理温度(从 160 ℃ 到 250 ℃)以及所使用的催化剂(最好是碱性介质)。在 HTC 处理过程中,入侵植物的生物质成分发生了显著变化,这表现在有机物的易变成分被去除。获得的 AHS 与天然腐殖质基本相似,具有生物刺激特性,因此可应用于农业和其他生物经济领域。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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