Occupational health risks and fate of chromium in sewage treatment co-treating tannery effluent
Lade...
Autor:in (Körperschaft)
Publikationsdatum
29.10.2025
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Human and Ecological Risk Assessment
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
31
Ausgabe / Nummer
9-10
Seiten / Dauer
1451-1470
Patentnummer
Verlag / Herausgebende Institution
Taylor & Francis
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
This study investigated chromium (Cr) concentrations and fate across processes at a sewage treatment plant (STP) co-treating tannery effluent and assessed health risks for STP workers and farmers using the effluent for irrigation. Two novel secondary treatments, an IPC membrane and a modified constructed wetland, were evaluated as a mitigation method. Methods combined key informant interviews (n = 4), observations (n = 4), Cr analyses (n = 132) and a mass balance approach to track the fate of Cr. Total Cr in the STP influent ranged from 2.49 to 14.95 mg/L, while hexavalent Cr was <100µg/L. Primary sludge contained high total Cr (8,672 to 17,525 mg/kgDM) and hexavalent Cr (0.07 to 0.67 mg/kgDM). Final effluents from the novel and conventional treatments met the Indian discharge standards for total Cr (2 mg/L) and hexavalent Cr (0.1 mg/L). Risk assessment identified three high-risk activities for STP workers, all related to skin contact during primary sludge handling. Farmers irrigated with mixed STP and common effluent treatment plant (CETP) effluent ;the Cr in the CETP effluent was 16 times higher than the STP effluent. The novel technologies did not lower the risks, as they did not address sludge management or CETP effluent quality. Targeted controls for sludge management and coordinated action on CETP discharges are therefore critical.
Schlagwörter
Health risks assessment, Reuse, Sanitation safety planning, Sewage sludge, Wastewater
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1080-7039
1549-7860
1549-7860
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Hybrid
Lizenz
Zitation
Villarreal, K. M. C., Furlong, C., Breitenmoser, L., & Hooijmans, C. M. (2025). Occupational health risks and fate of chromium in sewage treatment co-treating tannery effluent. Human and Ecological Risk Assessment, 31(9-10), 1451–1470. https://doi.org/10.1080/10807039.2025.2568888