A comparative study of persulfate activation by iron-modified diatomite and traditional processes for the treatment of 17 alpha-ethinylestradiol in water

Author(s)

Silva-Rackov, Celyna K. O. ^{[1, 2, 3]} ; Silva, Silvia S. O. ^[2] ; Souza, Alessandra R. ^[2] ; Aguiar, Leandro G. ^[4] ; Silva, Dannielle J. ^[2] ; Vianna, Marilda M. G. R. ^[1] ; Nascimento, Claudio A. O. ^[1] ; Chiavone-Filho, Osvaldo ^[2]

Affiliation

^[1] Univ Sao Paulo, Dept Chem Engn, Sao Paulo - Brazil

^[2] Univ Fed Rio Grande do Norte, Dept Chem Engn, Natal, RN - Brazil

^[3] El Ctr Coll, Dept Chem, Dallas, TX - USA

^[4] Univ Sao Paulo, Dept Chem Engn, Lorena - Brazil

• Document type: Journal article
• Source: ENVIRONMENTAL TECHNOLOGY; v. 42, n. 21, p. 3390-3402, SEP 19 2021.
• Web of Science Citations: 0

Abstract

Emerging pollutants have been the subject of worldwide study because their continuous entry into the environment presents a risk to ecosystems and human health. Advanced oxidation processes show promise for eliminating or reducing the concentrations of emerging pollutants in water. This study aimed to investigate the treatment of aqueous systems containing the synthetic hormone 17 alpha-ethinylestradiol. An innovative method for persulfate activation catalysed by iron-modified diatomite (heterogeneous system) was compared to conventional homogeneous activation methods (iron activation, alkaline activation, and heat activation). Iron-modified diatomite was more efficient in activating persulfate than traditional processes, achieving 98% of pollutant removal. Experimental results indicated that the catalyst can be reused without loss of removal efficiency, with potential environmental and economic benefits. {[}GRAPHICS] . (AU)

• FAPESP's process: 14/22080-9 - Experimental study and mathematical modeling of the production of styrene-based resins and their applications in heterogeneous catalysis
• Grantee: Leandro Gonçalves de Aguiar
• Support Opportunities: Regular Research Grants