Mixed industrial wastewater treatment by the combination of heterogeneous electro-Fenton and electrocoagulation processes.
Combined process
Electro-Fenton
Electrocoagulation
Mixed industrial wastewater
Modified laterite
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Mar 2022
Mar 2022
Historique:
received:
13
10
2021
revised:
10
12
2021
accepted:
15
12
2021
pubmed:
20
12
2021
medline:
21
1
2022
entrez:
19
12
2021
Statut:
ppublish
Résumé
Mixed industrial wastewater treatment efficiency of combined electro-Fenton (EF) and electrocoagulation (EC) processes was investigated in the present study. Alkali modified laterite soil was used as a heterogeneous EF catalyst and found superior performance than the raw laterite soil. Initially, the effect of catalyst dosage, initial pH, and applied voltage on the performance of EF process was carried out. A total of 54.57% COD removal was observed after 60 min of the EF treatment. Further treatment was carried out with EC process at different voltages. A total of 85.27% COD removal after 2 h treatment was observed by combining two electrochemical processes. Performance of EF followed by EC (EF + EC) process was compared with EC followed by EF (EC + EF) process. Even though efficiency is the same, EF + EC is a better strategy than EC + EF as it nullifies the neutralization requirement after EF process in addition to high mineralization efficiency, enhanced biodegradability, and lesser sludge generation.
Identifiants
pubmed: 34922960
pii: S0045-6535(21)03822-4
doi: 10.1016/j.chemosphere.2021.133348
pii:
doi:
Substances chimiques
Waste Water
0
Water Pollutants, Chemical
0
Hydrogen Peroxide
BBX060AN9V
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
133348Informations de copyright
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