Recalcitrant dissolved organic nitrogen formation in thermal hydrolysis pretreatment of municipal sludge

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dc.contributor.authorZhang, Dianen
dc.contributor.authorFeng, Yimingen
dc.contributor.authorHuang, Haiboen
dc.contributor.authorKhunjar, Wendellen
dc.contributor.authorWang, Zhi-Wuen
dc.contributor.departmentCivil and Environmental Engineeringen
dc.contributor.departmentFood Science and Technologyen
dc.date.accessioned2020-05-05T19:12:11Zen
dc.date.available2020-05-05T19:12:11Zen
dc.date.issued2020-05en
dc.description.abstractThermal hydrolysis pretreatment (THP) has been considered as an advanced approach to enhance the performance of anaerobic digestion treating municipal sludge. However, several drawbacks were also identified with THP including the formation of brown and ultraviolet-quenching compounds that contain recalcitrant dissolved organic nitrogen (rDON). Melanoidins produced from the Maillard reaction between reducing sugar and amino group have been regarded as a representative of such compounds. This review presented the state-of-the-art understanding of the mechanism of melanoidin formation derived from the research of sludge THP, food processing, and model Maillard reaction systems. Special attentions were paid to factors affecting melanoidin formation and their implications to the control of rDON in the sludge THP process. These factors include reactant availability, heating temperature and time, pH, and the presence of metallic ions. It was concluded that efforts need to be focused on elucidating the extent of the Maillard reaction in sludge THP. This paper aims to provide a mechanistic recommendation on the research and control of the THP-resulted rDON in municipal wastewater treatment plants.en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.envint.2020.105629en
dc.identifier.eissn1873-6750en
dc.identifier.issn0160-4120en
dc.identifier.otherUNSP 105629en
dc.identifier.pmid32179317en
dc.identifier.urihttp://hdl.handle.net/10919/97972en
dc.identifier.volume138en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectMaillard reactionen
dc.subjectMelanoidinsen
dc.subjectSludgeen
dc.subjectThermal hydrolysis pretreatmenten
dc.subjectRecalcitrant dissolved nitrogenen
dc.titleRecalcitrant dissolved organic nitrogen formation in thermal hydrolysis pretreatment of municipal sludgeen
dc.title.serialEnvironment Internationalen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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