A novel dual chemical coagulation–electrocoagulation method for enhanced NOM removal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F25%3A00641657" target="_blank" >RIV/67985874:_____/25:00641657 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/25:43933550

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263876225006173" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263876225006173</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cherd.2025.11.019" target="_blank" >10.1016/j.cherd.2025.11.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A novel dual chemical coagulation–electrocoagulation method for enhanced NOM removal

Popis výsledku v původním jazyce

Natural organic matter (NOM) in drinking water sources can deteriorate the organoleptic properties of water, impair the efficiency of the drinking water treatment processes, and pose a risk of harmful disinfection by-product formation. Therefore, an efficient and economic NOM removal is crucial for the sustainable production of high-quality drinking water. The study investigates the removal of NOM from natural surface water by chemical coagulation (CC), electrocoagulation (EC), and by their combination in a single treatment step – dual coagulation (DC), using chemical Al-based or Fe-based coagulants for CC and Al and Fe electrodes for EC. It is demonstrated that the dual coagulation method with relatively low EC metal dosage surpasses the NOM removal efficiency of CC and approaches the performance of EC, which, however, may have economic or technical limitations. Furthermore, ferric coagulants in both CC and EC show superior efficacy to Al coagulants. Consequently, the combination of CC by ferric coagulant with EC using Fe electrode provides the highest NOM removal (65 %) by DC compared to 57 % removal by CC (Fe coagulant) and 69 % removal by EC (Fe electrode). The cost analysis of individual coagulation methods shows that with DC, the enhancement of NOM removal efficiency may be achieved at the lowest operating costs, compared to CC and EC.

Název v anglickém jazyce

A novel dual chemical coagulation–electrocoagulation method for enhanced NOM removal

Popis výsledku anglicky

Natural organic matter (NOM) in drinking water sources can deteriorate the organoleptic properties of water, impair the efficiency of the drinking water treatment processes, and pose a risk of harmful disinfection by-product formation. Therefore, an efficient and economic NOM removal is crucial for the sustainable production of high-quality drinking water. The study investigates the removal of NOM from natural surface water by chemical coagulation (CC), electrocoagulation (EC), and by their combination in a single treatment step – dual coagulation (DC), using chemical Al-based or Fe-based coagulants for CC and Al and Fe electrodes for EC. It is demonstrated that the dual coagulation method with relatively low EC metal dosage surpasses the NOM removal efficiency of CC and approaches the performance of EC, which, however, may have economic or technical limitations. Furthermore, ferric coagulants in both CC and EC show superior efficacy to Al coagulants. Consequently, the combination of CC by ferric coagulant with EC using Fe electrode provides the highest NOM removal (65 %) by DC compared to 57 % removal by CC (Fe coagulant) and 69 % removal by EC (Fe electrode). The cost analysis of individual coagulation methods shows that with DC, the enhancement of NOM removal efficiency may be achieved at the lowest operating costs, compared to CC and EC.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Research and Design

ISSN

0263-8762

e-ISSN

1744-3563

Svazek periodika

224

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

171-180

Kód UT WoS článku

001621024400001

EID výsledku v databázi Scopus

2-s2.0-105021878192