利沃夫地区泥炭提取腐植酸的前景

M. Yakovenko, Yu.V. Khokha, O. Lyubchak
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引用次数: 0

摘要

本文简要地考虑了乌克兰泥炭工业的问题,并确定了其衰落的原因,包括作为能源的泥炭质量低。我们认为,由于经济和政治因素,在不久的将来将停止使用泥炭作为压块。另一方面,泥炭可能是化学物质及其混合物的来源,这些化学物质已在农业和工业中得到应用。众所周知,在钻井泥浆中添加腐植酸钠可以改善其流变特性,使其对环境更加安全,特别是在穿过含水层时。我们的目标是确定利沃夫地区泥炭的地质、技术和地球化学特征,确定其是否适合提取腐植酸,并确定有前途的矿床供未来加工。对利沃夫地区(Radekhiv)泥炭微量元素组成的研究表明,所研究的泥炭没有受到重金属的污染,污染指数的数值证明了这一点。结果表明,利沃夫地区泥炭的化学元素含量低于岩石圈、土壤和陆生植物中的化学元素含量。有分散亲铜元素和大多数亲铁元素的趋势,在较小程度上亲石元素。测定总腐植酸和游离腐植酸的产量证明了利用利沃夫地区的泥炭提取腐植酸的可能性。研究样品的特点是高含量的腐植酸在干重方面。根据现场储量、分解程度、腐殖质含量和灰分含量等参数,对泥炭提取的适宜性进行初步评价。在绘制了这些地球化学特征的分布图之后,我们在利沃夫地区确定了几个最有希望的矿床:在卡姆扬卡-布兹卡地区- Didylivske和Yarychivske矿床;在米科拉耶夫区-维尔比斯克、塞基夫斯克、德姆扬斯克和特罗斯特亚涅茨克。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prospects of using peats in the Lviv Region for humates extraction
The paper briefly considers the problems of the Ukraine’s peat industry and identifies the reasons for its decline, including the low quality of peat as an energy source. We assume that the use of peat for briquetting will be stopped in the near future due to economic and political factors. On the other hand, peat can be a source of chemicals and their mixtures that have found application in agriculture and industry. It is known that the addition of sodium humates to the drilling mud improves its rheological properties and makes them environmentally safe, especially when passing through aquifers. We set a goal to determine the geological, technological and geochemical characteristics of peat in the Lviv Region, to establish its suitability for the humic acids extraction and to identify promising deposits for future processing. The study of the peats microelement composition of the Radekhiv district (Lviv Region) showed that the studied peats are not contaminated with heavy metals, as evidenced by the values of pollution indices. It is shown that the content of chemical elements in peats of Lviv Region is less than clarke in the lithosphere, soils and terrestrial plants. There is a tendency to scatter chalcophilic and most siderophilic elements, to a lesser extent lithophilic. Determining the yield of total and free humic acids testified to the possibility of using peat in the Lviv Region to extract humates. The studied samples were characterized by a high content of humic acids in terms of dry weight. Preliminary assessment of deposits suitability for peat extraction was performed according to the following parameters: field reserves, degree of decomposition, humus content and ash content. After constructing maps of these geochemical characteristic’s distribution, we have identified several of the most promising deposits in the Lviv Region: in the Kamyanka-Buzka district – Didylivske and Yarychivske deposits; in the Mykolayiv district – Verbizke, Saikivske, Demnyanske and Trostyanetske.
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