CV


Mahmood Hajiani

Mahmood Hajiani

Associate Professor

Faculty: Engineering

Department: Civil Engineering

Degree: Doctoral

CV
Mahmood Hajiani

Associate Professor Mahmood Hajiani

Faculty: Engineering - Department: Civil Engineering Degree: Doctoral |

Mahmoud Hajiani is an Associate Professor in the Department of Civil Engineering at the University of Birjand. He holds an M.Sc. in Water Engineering from Iran University of Science and Technology and a Ph.D. in Water and Environmental Engineering from Australia. His research focuses on the removal of emerging contaminants through nanoparticle synthesis, advanced technologies such as photocatalysis, and nano-bio approaches for environmental pollution control. His expertise also includes investigating and removing microplastics from water resources using innovative methods, developing bio-electrochemical systems for wastewater treatment and hydrogen production, modeling the dispersion of emerging pollutants such as microplastics in aquatic environments, and applying remote sensing systems for water quality assessment. He has published numerous research articles in reputable international journals, including those indexed in the JCR database.

My affiliation

Department of Civil Engineering, Faculty of Engineering, University of Birjand

نمایش بیشتر

Removal of pharmaceutical pollutants from aquatic environments using heterogeneous photocatalysis

AuthorsMahmood Hajiani,Mohammad Hossein Sayadi
JournalAdvances in Environmental Technology
Page number271-278
Serial number8
Volume number4
Paper TypeFull Paper
Published At2022
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal Indexisc،Scopus

Abstract

Penicillin is one of the emerging pollutants that has toxic effects on food chains and aquatic environments. It creates many problems for human health and other living organisms. Conventional wastewater treatment methods cannot remove penicillin; therefore, modern approaches are necessary to remove it from sewage. In this study, we examined the ability of TiO2 photocatalysis in the degradation of penicillin in aqueous solutions. The effects of different factors such as adsorption, pH, catalyst dosage, the initial concentration of penicillin, and time were examined. The results showed that photolysis and adsorption had negligible effects on penicillin degradation. The maximum degradation (94.5%) was observed at an ambient pH of 5, 0.1 g/l of TiO2, and 20 mg/l of penicillin for 90 min. The photodegradation of penicillin followed a first-order kinetic reaction, and the rate constant (k) was 0.0213 min-1. A TOC analysis was conducted to determine the fate of the pollutant. The results showed that 41% of the organic carbon was removed in 120 min. Based on the results, TiO2 photocatalysis is an economically feasible procedure with good efficiency in removing penicillin from the aquatic environment.

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