Resource recovery potential of incineration bottom ash fine fraction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00600064" target="_blank" >RIV/67985858:_____/24:00600064 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/24:00137993

Výsledek na webu

<a href="https://hdl.handle.net/11104/0357432" target="_blank" >https://hdl.handle.net/11104/0357432</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.wasman.2024.10.020" target="_blank" >10.1016/j.wasman.2024.10.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Resource recovery potential of incineration bottom ash fine fraction

Popis výsledku v původním jazyce

The paper provides a summary of findings regarding the composition of the fine fraction of incineration bottom ash. While the recovery of metals is common practice for particles larger than 2 mm, it has been less common for finer particles, despite them constituting 30–40 % of the overall bottom ash mass flow. Detailed knowledge of the material composition of this fraction is essential for successful metal recovery. The study utilizes a TIMA electron microscope, originally designed for the mining industry, to analyze the bottom ash. The microscope allows for the identification of chemical speciation and was used to obtain detailed information about particles containing copper (Cu), aluminum (Al), iron (Fe), zinc (Zn), and gold (Au) in the fine fraction below 2,000 µm. Results revealed that metallic aluminum accounts for approximately 15 % of the overall aluminum content, with Al grains often coated by a thin layer of Al2O3. Metallic Cu and its alloys make up around 60 % of the copper content, while another 30 % is in the form of Cu oxides. In contrast, there is minimal presence of metallic Fe and Zn in the fine fraction. All metallic Au was bound to a single particle, corresponding to an Au content of 4 mg/kg in the bulk sample. The implications of these results are also discussed in relation to particle size distribution and liberation, as these factors play a vital role in the recovery process.

Název v anglickém jazyce

Resource recovery potential of incineration bottom ash fine fraction

Popis výsledku anglicky

The paper provides a summary of findings regarding the composition of the fine fraction of incineration bottom ash. While the recovery of metals is common practice for particles larger than 2 mm, it has been less common for finer particles, despite them constituting 30–40 % of the overall bottom ash mass flow. Detailed knowledge of the material composition of this fraction is essential for successful metal recovery. The study utilizes a TIMA electron microscope, originally designed for the mining industry, to analyze the bottom ash. The microscope allows for the identification of chemical speciation and was used to obtain detailed information about particles containing copper (Cu), aluminum (Al), iron (Fe), zinc (Zn), and gold (Au) in the fine fraction below 2,000 µm. Results revealed that metallic aluminum accounts for approximately 15 % of the overall aluminum content, with Al grains often coated by a thin layer of Al2O3. Metallic Cu and its alloys make up around 60 % of the copper content, while another 30 % is in the form of Cu oxides. In contrast, there is minimal presence of metallic Fe and Zn in the fine fraction. All metallic Au was bound to a single particle, corresponding to an Au content of 4 mg/kg in the bulk sample. The implications of these results are also discussed in relation to particle size distribution and liberation, as these factors play a vital role in the recovery process.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20703 - Mining and mineral processing

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Waste Management

ISSN

0956-053X

e-ISSN

1879-2456

Svazek periodika

190

Číslo periodika v rámci svazku

Dec 15 2024

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

569-577

Kód UT WoS článku

001346691400001

EID výsledku v databázi Scopus

2-s2.0-85207602032