Biological denitrification for water detoxification: A review

Basit Öğe Kaydı
dc.authorid0000-0002-7782-1240
dc.contributor.authorUcar, Deniz
dc.contributor.authorSahinkaya, Erkan
dc.contributor.authorSabba, Fabrizio
dc.contributor.authorDi Capua, Francesco
dc.date.accessioned2026-02-08T15:15:09Z
dc.date.available2026-02-08T15:15:09Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractBiological denitrification is an established process for nitrate (NO3-) removal that is typically applied in wastewater treatment plants (WWTPs) and sometimes for drinking water treatment. In WWPTs, conventional denitrification is driven by the oxidation of the organic matter existing in the influents of municipal and/or industrial origin. Alternatively, some inorganic compounds, including sulfur, hydrogen, and iron, can act as electron acceptors for denitrification purposes. In industrial wastewater and in water from contaminated water bodies, toxic compounds including heavy metals such as chromium, arsenic, uranium, and manganese as well as other pollutants such as sulfide, thiocyanate, perchlorate, and aromatic compounds can be present. Interestingly, these compounds can also act as energy sources for denitrifying bacteria and/or be co-reduced with NO3 - and other denitrification intermediates. In this way, their toxicity can be partially or totally removed, which demonstrates the potential of biological denitrification for the detoxification of both water and wastewater. This work reviews the toxicity, degradation pathways, and impacts on denitrification steps, microorganisms, and bioreactor operation of eight types of toxic compounds that can be detoxified via biological denitrification. The role of the different compounds on nitrous oxide (N2O) emissions during denitrification is also discussed to provide useful information for the minimization of greenhouse gas emissions.
dc.identifier.doi10.1016/j.cej.2025.163799
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.scopus2-s2.0-105005960658
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.cej.2025.163799
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5635
dc.identifier.volume516
dc.identifier.wosWOS:001504555600001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofChemical Engineering Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectDenitrification
dc.subjectDetoxification
dc.subjectPollutant removal
dc.subjectSulfide
dc.subjectHeavy metals
dc.subjectAromatic compounds
dc.titleBiological denitrification for water detoxification: A review
dc.typeReview Article

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