Comparison of microwave and thermal reactivation of spent activatedncarbons: A pilot scale demonstration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F24%3A00599682" target="_blank" >RIV/67985891:_____/24:00599682 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jwpe.2024.106189" target="_blank" >https://doi.org/10.1016/j.jwpe.2024.106189</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jwpe.2024.106189" target="_blank" >10.1016/j.jwpe.2024.106189</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of microwave and thermal reactivation of spent activatedncarbons: A pilot scale demonstration

Popis výsledku v původním jazyce

Research on microwave reactivation has until now been conducted at laboratory scale only, and larger scale studies are not available yet. The aim of the research presented in this paper was to conduct microwave reactivation of activated carbon at pilot scale, and to compare it with conventional thermal reactivation. The spent activated carbon from waterworks was regenerated/reactivated using conventional thermal reactivation at temperatures of 400 ◦C, 500 ◦ C and 700 ◦C. Microwave reactivation was tested at a temperature of 700 ◦C.nReactivation at 700 ◦C (both thermal and microwave) was conducted under addition of steam. The porous structure of original, spent and reactivated carbon was compared. The reactivation efficiency was examined using methyl orange sorption as a model adsorbate. The pilot scale demonstration confirmed that microwave reactivation at 700 ◦C produced reactivated carbon with similar pore properties as conventional thermal treatment, but with a two times shorter reactivation time. In addition, microwave reactivation provided the bestnrestoration of the activated carbon structure in terms of morphology. Both reactivation procedures were able to restore the methyl orange sorption capacity from 53 % to 88 % and the specific surface area from 70 % to morenthan 90 %.

Název v anglickém jazyce

Comparison of microwave and thermal reactivation of spent activatedncarbons: A pilot scale demonstration

Popis výsledku anglicky

Research on microwave reactivation has until now been conducted at laboratory scale only, and larger scale studies are not available yet. The aim of the research presented in this paper was to conduct microwave reactivation of activated carbon at pilot scale, and to compare it with conventional thermal reactivation. The spent activated carbon from waterworks was regenerated/reactivated using conventional thermal reactivation at temperatures of 400 ◦C, 500 ◦ C and 700 ◦C. Microwave reactivation was tested at a temperature of 700 ◦C.nReactivation at 700 ◦C (both thermal and microwave) was conducted under addition of steam. The porous structure of original, spent and reactivated carbon was compared. The reactivation efficiency was examined using methyl orange sorption as a model adsorbate. The pilot scale demonstration confirmed that microwave reactivation at 700 ◦C produced reactivated carbon with similar pore properties as conventional thermal treatment, but with a two times shorter reactivation time. In addition, microwave reactivation provided the bestnrestoration of the activated carbon structure in terms of morphology. Both reactivation procedures were able to restore the methyl orange sorption capacity from 53 % to 88 % and the specific surface area from 70 % to morenthan 90 %.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/TH02030105" target="_blank" >TH02030105: Racionalizace nakládání s použitými sorpčními materiály na bázi aktivního uhlí</a><br>

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

Journal of Water Process Engineering

ISSN

2214-7144

e-ISSN

2214-7144

Svazek periodika

67

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

106189

Kód UT WoS článku

001334415700001

EID výsledku v databázi Scopus

2-s2.0-85205586546