Biotransformation of 17β-Estradiol through a Denitrifying Sludge

César Camacho-López, Claudia Romo-Gómez (), Elena María Otazo-Sánchez, Otilio Arturo Acevedo-Sandoval, Edelmira García-Nieto and Libertad Juárez-Santacruz
Additional contact information
César Camacho-López: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
Claudia Romo-Gómez: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
Elena María Otazo-Sánchez: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
Otilio Arturo Acevedo-Sandoval: Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, Mexico
Edelmira García-Nieto: Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala de Xicohténcatl 90000, Tlaxcala, Mexico
Libertad Juárez-Santacruz: Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala de Xicohténcatl 90000, Tlaxcala, Mexico

IJERPH, 2022, vol. 19, issue 20, 1-13

Abstract: 17β-estradiol (E2) is the natural estrogen with the most significant potential for endocrine disruption in the biota of aquatic ecosystems at trace concentrations. It is, therefore, essential to study treatments for water polluted with E2 that would guarantee its complete elimination and mineralization. Denitrification is a biological process shown to have the capacity to completely biodegrade drugs, such as ampicillin. This work is aimed to evaluate the biotransformation of 17β-estradiol by employing a denitrifying sludge. The assays performed were: (I) abiotic with 3.5 mg E2-C L −1 and (II) denitrifying with 10 mg CH 3 COO − -C L −1 as the reference, 10 mg E2-C L −1 as the sole electron donor, and a mixture of (mg L −1 ) 10 E2-C with 10 CH 3 COO − -C at C N −1 of 1.1. The E2-C and NO 3 − -N consumption efficiencies were greater than 99%, and HCO 3 − -C and N 2 production yields were close to 1 in all assays. The denitrifying sludge could biodegrade up to 10 mg E2-C L −1 as the sole electron donor and when mixed with 10 mg CH 3 COO − -C L −1 . No intermediate metabolites were generated from the process.

Keywords: 17?-estradiol; denitrification; biodegradation; emerging pollutants; mineralization (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/20/13326/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/20/13326/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2022:i:20:p:13326-:d:943486

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().