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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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 %.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/TH02030105" target="_blank" >TH02030105: Racionalization of handling with exhausted activated carbon based adsorption materials</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Water Process Engineering

ISSN

2214-7144

e-ISSN

2214-7144

Volume of the periodical

67

Issue of the periodical within the volume

November

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

106189

UT code for WoS article

001334415700001

EID of the result in the Scopus database

2-s2.0-85205586546