Investigation of the Morphology, Composition, and Structure of Dehydrated Sewage Sludge of a Pulp and Paper Enterprise

IF 0.8 4区 工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY Solid Fuel Chemistry Pub Date : 2024-11-06 DOI:10.3103/S0361521924700368
A. P. Terekhin, P. A. Maryandyshev, A. Brillard
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Abstract

The composition, structure, and morphology of dehydrated sewage sludge, a by-product of pulp and paper production, were studied. The thermal characteristics of sewage sludge were investigated. An elemental analysis of the sewage sludge was carried out, the results of which revealed a large number of noncombustible elements (5.5%), including heavy metals (vanadium, chromium, nickel, zinc, and strontium), compared to other types of fuel. Thermogravimetric studies on the thermal decomposition of dehydrated sediment were carried out. The thermogravimetric and differential thermogravimetric curves were described, and the temperature ranges of drying, release of volatile substances, and combustion of coke residue were determined. Microscope photos showed that the particle size of the sediment varied from 0.5 and 350 nm, and amorphous flakes and crystalline inclusions were the main elements of its structure.

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一家制浆造纸企业脱水污泥的形态、成分和结构研究
研究了纸浆和造纸生产的副产品--脱水污水污泥的成分、结构和形态。研究了污水污泥的热特性。对污水污泥进行了元素分析,结果显示,与其他类型的燃料相比,污水污泥中含有大量不可燃元素(5.5%),包括重金属(钒、铬、镍、锌和锶)。对脱水沉积物的热分解进行了热重研究。描述了热重曲线和差热重曲线,并确定了焦渣干燥、挥发性物质释放和燃烧的温度范围。显微镜照片显示,沉积物的粒度在 0.5 至 350 nm 之间,无定形薄片和结晶包裹体是其结构的主要元素。
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来源期刊
Solid Fuel Chemistry
Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS
CiteScore
1.10
自引率
28.60%
发文量
52
审稿时长
6-12 weeks
期刊介绍: The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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