焚烧底灰瑞典矿物组分（MIBA）的高压选择性破碎——金属和材料回收的探索性研究。

IF 7.1 2区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Waste management Pub Date : 2025-01-21 DOI:10.1016/j.wasman.2025.01.015

Lisa Dacklin , Christina Lee , Karin Karlfeldt Fedje , Alexander Weh , Andreas Glauser , Raul Grönholm , Fredrik Björckebaum , Magnus Evertsson

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引用次数: 0

摘要

在瑞典，垃圾发电（WtE）每年产生大约1公吨的焚烧底灰（MIBA）矿物馏分，通常用作垃圾填埋场的建筑材料。即将出台的欧盟委员会指令将限制垃圾填埋，预计填埋场建设对MIBA的需求将减少。因此，需要对MIBA进行替代利用。高压选择性破碎（HVSF）在瑞士被用于提高垃圾填埋场底灰的回收率，产生更高均匀性的分数：金属、矿物、氧化铁（FeO）和分选残留物。对来自两家瑞典WtE工厂的样品进行处理，以测试HVSF对瑞典MIBA的有效性。将HVSF应用于MIBA后，每个样品的金属提取率分别为2.2%和1.2%，其中黑色金属分别为1.2%和0.6%，有色金属分别为1.0%和0.6%。对矿物、FeO和分选渣进行了总元素含量和浸出分析。确定了FeO在熟料和砖工业中的潜在利用，而矿物分数超过了瑞典无限制使用的指导值。结果表明，需要对如何提高MIBA的价值回收进行更多的研究，以更好地符合循环原则，特别是关于回收馏分的化学性质和适当的使用立法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$High voltage selective fragmentation on Swedish mineral fraction of incineration bottom ash (MIBA) – An exploratory study on metal and material recovery$

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High voltage selective fragmentation on Swedish mineral fraction of incineration bottom ash (MIBA) – An exploratory study on metal and material recovery

Waste-to-Energy (WtE) generates circa 1 Mt/y of Mineral fraction of Incineration Bottom Ash (MIBA) in Sweden, often used as construction material for landfills. Upcoming European Commission directives will limit landfilling and the demand for MIBA for landfill construction is predicted to decrease. Therefore, alternative utilisations of MIBA are required.

High Voltage Selective Fragmentation (HVSF) has been utilised in Switzerland to improve recovery from WtE bottom ash, yielding fractions of higher homogeneity: metals, minerals, iron oxide (FeO), and a sorting residue. Samples from two Swedish WtE plants were treated to test the effectiveness of HVSF on Swedish MIBA.

Applying HVSF to MIBA resulted in additional metal extraction of 2.2% and 1.2% for each sample, consisting of 1.2% and 0.6% ferrous metals and 1.0% and 0.6% non-ferrous metals, respectively. The minerals, FeO, and sorting residue were analysed for total elemental content and leaching. Potential utilisation in the clinker and brick industry is identified for FeO, while the mineral fraction exceeded guideline values for unlimited use in Sweden. The results indicate more research is required on how value recovery of MIBA can be increased to better align with circular principles, particularly concerning the chemical properties of the recovered fractions and appropriate legislation for use.

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来源期刊

Waste management 环境科学-工程：环境

CiteScore

15.60

自引率

6.20%

发文量

492

审稿时长

39 days

期刊介绍： Waste Management is devoted to the presentation and discussion of information on solid wastes,it covers the entire lifecycle of solid. wastes. Scope: Addresses solid wastes in both industrialized and economically developing countries Covers various types of solid wastes, including: Municipal (e.g., residential, institutional, commercial, light industrial) Agricultural Special (e.g., C and D, healthcare, household hazardous wastes, sewage sludge)