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DatoValore
TitleRemoval of pollutants and pathogens by a simplified treatment scheme for municipal wastewater reuse in agriculture
AbstractThe availability of high quality water has become a constraint in several countries. Agriculture represents the main water user, therefore, wastewater reuse in this area could increase water availability for other needs. This research was aimed to provide a simplified scheme for treatment and reuse of municipal and domestic wastewater based on Sequencing Batch Biofilter Granular Reactors (SBBGRs). The activity was conducted at pilot-scale and particular attention was dedicated to the microbiological quality of treated wastewater to evaluate the risk associated to its reuse. The following microorganisms were monitored: Escherichia coli, Salmonella, Clostridiumperfringens, somatic coliphages, adenovirus, enterovirus, Giardia lamblia and Cryptosporidiumparvum. The possibility of SBBGR enhancement with sand filtration was also evaluated. The SBBGR removed >90% of suspended solids and chemical oxygen demand, and 80% and 60% of total nitrogen and phosphorous, respectively. SBBGR was also effective in removing microbial indicators, from 1 (for C. perfringens) up to 4 (for E. coli) log units of these microorganisms. In particular, the quality of SBBGR effluent was already compatible with the WHO criteria for reuse (E. coli <=103 CFU/100 mL). Sand filtration had positive effects on plant effluent quality and the latter could even comply with more restrictive reuse criteria.
SourceScience of the total environment 580, pp. 17–25
KeywordsDisinfectionEscherichia coliProtozoaVirusPathogen removalWastewater reuse
JournalScience of the total environment
EditorElsevier, Lausanne ;, Paesi Bassi
Year2017
TypeArticolo in rivista
DOI10.1016/j.scitotenv.2016.12.002
AuthorsDe Sanctis M.; Del Moro G.; Chimienti S.; Ritelli P.; Levantesi C.; Di Iaconi C.
Text367371 2017 10.1016/j.scitotenv.2016.12.002 Scopus 2 s2.0 85002841728 ISI Web of Science WOS WOS 000395353600003 Disinfection Escherichia coli Protozoa Virus Pathogen removal Wastewater reuse Removal of pollutants and pathogens by a simplified treatment scheme for municipal wastewater reuse in agriculture De Sanctis M.; Del Moro G.; Chimienti S.; Ritelli P.; Levantesi C.; Di Iaconi C. Istituto di Ricerca Sulle Acque del CNR CNR IRSA , Via F. De Blasio 5, Bari, 70123, Italia; Istituto di Ricerca Sulle Acque del CNR CNR IRSA , Via Salaria Km 29.300, Monterotondo, RM, 00015, Italia The availability of high quality water has become a constraint in several countries. Agriculture represents the main water user, therefore, wastewater reuse in this area could increase water availability for other needs. This research was aimed to provide a simplified scheme for treatment and reuse of municipal and domestic wastewater based on Sequencing Batch Biofilter Granular Reactors SBBGRs . The activity was conducted at pilot scale and particular attention was dedicated to the microbiological quality of treated wastewater to evaluate the risk associated to its reuse. The following microorganisms were monitored Escherichia coli, Salmonella, Clostridiumperfringens, somatic coliphages, adenovirus, enterovirus, Giardia lamblia and Cryptosporidiumparvum. The possibility of SBBGR enhancement with sand filtration was also evaluated. The SBBGR removed >90% of suspended solids and chemical oxygen demand, and 80% and 60% of total nitrogen and phosphorous, respectively. SBBGR was also effective in removing microbial indicators, from 1 for C. perfringens up to 4 for E. coli log units of these microorganisms. In particular, the quality of SBBGR effluent was already compatible with the WHO criteria for reuse E. coli <=103 CFU/100 mL . Sand filtration had positive effects on plant effluent quality and the latter could even comply with more restrictive reuse criteria. 580 Published version https //www.sciencedirect.com/science/article/pii/S0048969716326870 via%3Dihub Removal of pollutants and pathogens by a simplified treatment scheme for municipal wastewater reuse in agriculture Versione pubblicata dell articolo De Sanctis et al. 2017_STOTEN.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. CHIMIENTI SILVIA claudio.diiaconi DI IACONI CLAUDIO caterina.levantesi LEVANTESI CATERINA marco.desanctis DE SANCTIS MARCO WATER4CROPS Integrating bio treated wastewater with enhanced water use efficiency to support the Green Economy in EU and India