Characterization of the ash samples before and after thermal processing aiming phosphorus extraction and residues valorization

IF 5.6 2区工程技术 Q2 ENERGY & FUELS

International Journal of Coal Geology Pub Date : 2025-05-09 DOI:10.1016/j.coal.2025.104808

Georgeta Predeanu , Bruno Valentim , Luminita Georgeta Popescu , Alexandru Traian Abagiu , Lucica Anghelescu , Mihaela Niculina Bălănescu , Barbara Białecka , Elza Bontempi , Magdalena Cempa , Marius Florin Drăgoescu , Alexandra Guedes , Özben Kutlu , Mattia Massa , Elsayed Mousa , Adrian Ionut Nicoară , Hayati Olgun , Valerica Slăvescu , Bogdan Stefan Vasile , Guozhu Ye

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引用次数: 0

Abstract

This paper presents the prospect of phosphorus (P) - rich poultry litter manure ash (PLA) used to recover P through microwave heating methods, aiming for residual slag recycling in constructions.

The results show the complex composition of the ashes characterized by X-ray fluorescence (XRF), reflected light optical microscopy, X-ray microanalysis (SEM/EDS) and X-ray diffraction (XRD), which explains the differences between the ash types and the operation temperature in the combustion chamber. At the same time, the results present a novel approach of using microwave heating by reducing energy consumption to extract/enrich P from PLA and forming a by-product/residual slag used as a supplementary cementing material.

Samples of fly ash (FA) and bottom ash (BA) were collected from two fluidized bed incinerators (Güres and Beypi in Türkiye) operating at 750 °C and 850 °C within the PHIGO project funded by the 3rd ERA-MIN Program of the European Union Commission.

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以提磷和渣价为目标的热处理前后灰样的表征

本文介绍了利用富磷禽畜粪便灰（PLA）利用微波加热法回收磷的前景，旨在实现建筑残渣的资源化利用。结果表明，通过x射线荧光（XRF）、反射光光学显微镜、x射线显微分析（SEM/EDS）和x射线衍射（XRD）对炉灰的复杂组成进行了表征，从而解释了炉灰类型和燃烧室操作温度的差异。同时，研究结果提出了一种利用微波加热降低能耗从PLA中提取/富集P，并形成副产品/残渣作为补充胶凝材料的新方法。在欧盟委员会第三ERA-MIN计划资助的PHIGO项目中，从两个流化床焚烧炉（g res和Beypi in t rkiye）在750°C和850°C下运行，收集了粉煤灰（FA）和底灰（BA）样本。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Coal Geology 工程技术-地球科学综合

CiteScore

11.00

自引率

14.30%

发文量

145

审稿时长

38 days

期刊介绍： The International Journal of Coal Geology deals with fundamental and applied aspects of the geology and petrology of coal, oil/gas source rocks and shale gas resources. The journal aims to advance the exploration, exploitation and utilization of these resources, and to stimulate environmental awareness as well as advancement of engineering for effective resource management.