Conversion of recovered phosphorus tailings into high-value lightweight ceramic materials and evaluation of environmental safety

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2024-11-03 DOI:10.1016/j.psep.2024.11.005

Fanghui Fu , Nanyan Hu , Shengwen Yang , Qigao Li , Yicheng Ye , Jie Wang , Rongbin Tang

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引用次数: 0

Abstract

In recent years, the substantial production and underutilization of phosphorus tailings have prompted an intensified search for innovative strategies to mitigate their accumulation and the associated hazards they present. This investigation the utilization of phosphorus tailings as a raw material for the cost-effective production of lightweight ceramic materials using the foaming-gel casting method. The impact of the stirring process on lightweight ceramic materials was investigated, encompassing mineral composition, pore structure, properties, and environmental safety assessment. The investigation utilized slurry volumetric foaming rate, XRD, SEM, ICP-MS, and potential ecological risk index (RI) for analysis. The findings suggested that the lightweight ceramic material, obtained by stirring at 1300 rpm for 15 min, exhibited the densest structure and excellent properties. It had a porosity of 79.19 %, a bulk density of 0.59 g/cm³, and a compressive strength of 6.08 MPa. Besides, the leaching concentration and RI of lightweight ceramic materials complied with national (GB 8978–1996) and US EPA standards. This study aimed to enhance the sustainable production capacity of lightweight ceramic materials and offered data support for the value-added application and performance optimization of phosphorus tailings in the production of lightweight ceramic materials.

查看原文本刊更多论文

将回收的磷尾矿转化为高价值轻质陶瓷材料并评估环境安全性

近年来，磷尾矿的大量生产和利用不足促使人们加紧寻求创新战略，以减少磷尾矿的积累及其带来的相关危害。本研究利用磷尾矿作为原料，采用发泡凝胶浇铸法，经济高效地生产轻质陶瓷材料。调查了搅拌过程对轻质陶瓷材料的影响，包括矿物成分、孔隙结构、性能和环境安全评估。调查利用浆料体积发泡率、XRD、SEM、ICP-MS 和潜在生态风险指数 (RI) 进行分析。研究结果表明，在 1300 rpm 转速下搅拌 15 分钟得到的轻质陶瓷材料具有最致密的结构和优异的性能。其孔隙率为 79.19%，体积密度为 0.59 g/cm3，抗压强度为 6.08 MPa。此外，轻质陶瓷材料的浸出浓度和 RI 均符合国家（GB 8978-1996）和美国 EPA 标准。该研究旨在提高轻质陶瓷材料的可持续生产能力，为磷尾矿在轻质陶瓷材料生产中的增值应用和性能优化提供数据支持。

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.