Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/158438
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Martín Díaz, Julia | - |
dc.contributor.author | Ruiz Hernando, María | - |
dc.contributor.author | Astals Garcia, Sergi | - |
dc.contributor.author | Lucena Gutiérrez, Francisco | - |
dc.date.accessioned | 2020-05-03T11:42:32Z | - |
dc.date.available | 2020-05-03T11:42:32Z | - |
dc.date.issued | 2017-02 | - |
dc.identifier.issn | 0960-8524 | - |
dc.identifier.uri | http://hdl.handle.net/2445/158438 | - |
dc.description.abstract | The capability of clostridia spores to act as pathogen indicators in sewage sludge treatment was investigated. Sulfite-reducing clostridia and E. coli levels were monitored during waste activated sludge pre-treatments (alkali and ultrasound) and its subsequent mesophilic anaerobic digestion. E. coli was maintained or reduced depending on treatment type and intensity. However, alkali pre-treatment (35.3 gNaOH/kg TS) by itself and alkali (157 gNaOH/kg TS) and ultrasound (27,000 kJ/kg TS) pre-treatments followed by anaerobic digestion provoked reproducible clostridia increases. Specifically, up to 2.7 log10 after 35.3 gNaOH/kg TS pre-treatment and up to 1.9 and 1.1 log10 after digesting the 157 gNaOH/kg TS and 27,000 kJ/kg TS pre-treated sludge, respectively. Having rejected the hypotheses of sporulation and floc dissipation, the most plausible explanation for these clostridia increases is re-growth. These results question the suitability of clostridia spores as indicators of sludge treatment and other biological treatments where clostridia may have a role. | - |
dc.format.extent | 7 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.biortech.2016.11.075 | - |
dc.relation.ispartof | Bioresource Technology, 2017, vol. 225, p. 286-292 | - |
dc.relation.uri | https://doi.org/10.1016/j.biortech.2016.11.075 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2017 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Genètica, Microbiologia i Estadística) | - |
dc.subject.classification | Clostridi | - |
dc.subject.classification | Bacteris patògens | - |
dc.subject.classification | Indicadors biològics | - |
dc.subject.classification | Llots de depuradora | - |
dc.subject.other | Clostridium | - |
dc.subject.other | Pathogenic bacteria | - |
dc.subject.other | Indicators (Biology) | - |
dc.subject.other | Sewage sludge | - |
dc.title | Assessing the usefulness of clostridia spores for evaluating sewage sludge hygienization | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 666613 | - |
dc.date.updated | 2020-05-03T11:42:33Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Genètica, Microbiologia i Estadística) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
666613.pdf | 818.68 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License