Investigating adsorption of model low-MW AOM components onto different types of activated carbon – influence of temperat­ure and pH value

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F22%3A00531898" target="_blank" >RIV/67985874:_____/22:00531898 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10430553

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/09593330.2020.1820082" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/09593330.2020.1820082</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/09593330.2020.1820082" target="_blank" >10.1080/09593330.2020.1820082</a>

Result language

angličtina

Original language name

Investigating adsorption of model low-MW AOM components onto different types of activated carbon – influence of temperat­ure and pH value

Original language description

Low molecular weight algal organic matter (AOM), as a frequent water contaminant with poor coagulation efficiency, adversely affects the quality of produced water and serves as a source of potentially carcinogenic disinfection by-products. AOM removal from water is inevitable to eliminate the negative health and environmental impacts. This research evaluates the removal of arginine, phenylalanine and aspartic acid, which are amino acids abundant in AOM. Adsorption experiments were performed at 10, 18 and 25 °C and pH 5, 7 and 9 using two different activated carbons (FTL, PIC). Amino acids showed endothermic adsorption behaviour, with a higher removal at higher temperature. Higher temperature increased the diffusion of amino acid molecules, reduced the solution viscosity, or enhanced the hydrophobic interactions contributing to adsorption. The effect of temperature manifested differently during experiments depending on the chemical nature of the amino acids, the pH value and the surface properties of the carbon. Phenylalanine isotherms showed specific waves (Langmuir type 4). pH had a greater effect on arginine adsorption than did temperature. Aspartic acid isotherms exhibited a decrease in adsorption at higher pH values and higher temperatures. The principal mechanisms involved in amino acid adsorption were hydrophobic interactions, electrostatic interactions or hydrogen bonds.

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

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Environmental Technology

ISSN

0959-3330

e-ISSN

1479-487X

Volume of the periodical

43

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

1152-1162

UT code for WoS article

000570284200001

EID of the result in the Scopus database

2-s2.0-85091071663