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In this study, municipal wastewater was treated by a SMBR system and further disinfected with chlorine to produce reclaimed water. The primary objective was to examine the water quality with a focus on trihalomethanes (THMs). As disinfection conditions are important aspects in controlling the formation of THMs, influences of chlorine dose and contact time on THM formation and speciation were also investigated. High quality reclaimed water was generated though the SMBR system with regard to five-day biological oxygen demand (BOD5), suspend solid (SS) and turbidity. However the concentration of total trihalomethanes (TTHM) in the chlorinated SMBR effluent was up to 160 μg/L, demonstrating that the SMBR was insufficient in the removal of THM precursors. TTHM levels increased with chlorine dose and contact time. As chlorine dose increased, the yields of trichloromethane (CHCl3) and bromodichloromethane (CHBrCl2) increased, whereas both tribromomethane (CHBr3) and dibromochloromethane (CHBr2Cl) decreased due to the rise of Cl2/Br― ratio. In order to reduce health risks of reclaimed water, efficient removal of disinfection by-product precursor and opportune chlorine disinfection conditions are recommended.

Titel:	Evaluation of a submerged membrane bioreactor (SMBR) coupled with chlorine disinfection for municipal wastewater treatment and reuse
Autor/in / Beteiligte Person:	DEFANGMA ; BAOYUGAO ; DIANXUNHOU ; YAN, WANG ; QINYANYUE ; QIAN, LI
Link:	E-Journal im Bestand der UB Hagen? View record from PASCAL Archive
Zeitschrift:	Desalination (Amsterdam), Jg. 313 (2013), S. 134-139
Veröffentlichung:	Amsterdam: Elsevier, 2013
Medientyp:	academicJournal
Umfang:	print, 33 ref
ISSN:	0011-9164 (print)
Schlagwort:	Energy Énergie Environment Environnement Pollution Sciences exactes et technologie Exact sciences and technology Sciences appliquees Applied sciences Genie chimique Chemical engineering Réacteurs Reactors Traitement et pollution des eaux Water treatment and pollution Eaux usées Wastewaters Procédés généraux d'épuration General purification processes Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Biotechnologie Biotechnology Méthodes. Procédés. Technologies Methods. Procedures. Technologies Méthodes et appareillages divers Various methods and equipments Autres Others Bioréacteur Bioreactor Biorreactor Chloration Chlorination Clorinación DBO Biological oxygen demand Désinfection Disinfection Desinfección Eau usée urbaine Urban waste water Agua usada urbana Epuration eau usée Waste water purification Depuración aguas servidas Polluant secondaire Secondary pollutant Contaminante secundario Précurseur Precursor Qualité eau Water quality Calidad agua Risque santé Health hazards Riesgos contra salud Réacteur membrane Membrane reactor Reactor membrana Réutilisation Reuse Reutilización Spéciation Speciation Especiación Turbidité Turbidity Turbiedad Municipal wastewater SMBR Trihalomethanes (THMs) Water reuse
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Ji' nan 250100, China ; Singapore Membrane Technology Centre, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore Rights: Copyright 2014 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Biotechnology ; Chemical engineering ; Pollution

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Evaluation of a submerged membrane bioreactor (SMBR) coupled with chlorine disinfection for municipal wastewater treatment and reuse