Comparing microbial risks from multiple sustainable waste streams applied for agricultural use: Biosolids, manure, and diverted urine

Hamilton, Kerry A.; Ahmed, Warish; Rauh, Eleanor; Rock, Channah; McLain, Jean E.; Muenich, Rebecca Logsdon

doi:10.1016/j.coesh.2020.01.003

Cited by 18 publications

(11 citation statements)

References 171 publications

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“…The current study focused on HAdV prevalence in various water environments. The highest HAdV prevalence was observed in wastewater landfills, likely as a result of the frequent, extensive disposal of biosolids in landfills that increase the level of pathogens in the resultant leachate [ 39 ]. Moreover, landfills and associated facilities were reported to have a HAdV prevalence of 75% [ 40 ], less than that reported in the current study at 83.3%.…”

Section: Discussionmentioning

confidence: 99%

Human Adenovirus Molecular Characterization in Various Water Environments and Seasonal Impacts in Riyadh, Saudi Arabia

Nour

Hanif

Zakri

et al. 2021

IJERPH

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The regular monitoring of water environments is essential for preventing waterborne virus-mediated contamination and mitigating health concerns. We aimed to detect human adenovirus (HAdV) in the Wadi Hanifah (WH) and Wadi Namar (WN) lakes, King Saud University wastewater treatment plant (KSU-WWTP), Manfouha-WWTP, irrigation water (IW), and AnNazim landfill (ANLF) in Riyadh, Saudi Arabia. HAdV hexon sequences were analyzed against 71 HAdV prototypes and investigated for seasonal influence. ANLF had the highest HAdV prevalence (83.3%). Remarkably, the F species of HAdV, especially serotype 41, predominated. Daily temperature ranges (22–45 °C and 10–33 °C) influenced the significance of the differences between the locations. The most significant relationship of ANLF and IW to WH and KSU-WWTP was found at the high-temperature range (p = 0.001). Meanwhile, WN was most correlated to ANLF at the low-temperature range (p < 0.0001). Seasonal influences on HAdV prevalence were insignificant despite HAdV’s high prevalence in autumn and winter months, favoring low temperatures (high: 22–25 °C, low: 14–17 °C) at five out of six locations. Our study provides insightful information on HAdV prevalence and the circulating strains that can address the knowledge gap in the environmental impacts of viruses and help control viral diseases in public health management.

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Section: Discussionmentioning

confidence: 99%

Human Adenovirus Molecular Characterization in Various Water Environments and Seasonal Impacts in Riyadh, Saudi Arabia

Nour

Hanif

Zakri

et al. 2021

IJERPH

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“…This study introduced a QMRA framework to promote a water reuse concept of receiving water in industrial communities. Adenoviruses have been widely used for QMRA in many applications, such as direct potable reuse (Amoueyan et al, 2019), indirect potable reuse to augment ground or surface water drinking sources (Amoueyan et al, 2019;Purnell et al, 2020), indirect wastewater reuse (Ahmed et al, 2018), biosolids for agricultural land applications (Hamilton et al, 2020), public drinking water supplies (Owens et al, 2020), natural recreational water (Federigi et al, 2019), stormwater runoff (Ahmed et al, 2019), and occupational exposure at wastewater treatment facilities (Carducci et al, 2018). In this study, HAdV40/41 distribution functions were estimated from crAssphage distributions, as supported by a significant correlation between these two DNA markers in wastewater (Farkas et al, 2019;Sirikanchana et al, 2020;Tandukar et al, 2020;Wu et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Human Fecal Pollution Monitoring and Microbial Risk Assessment for Water Reuse Potential in a Coastal Industrial–Residential Mixed-Use Watershed

et al. 2021

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Rapid economic development has caused industrial expansion into residential communities, leading to higher fecal pollution loads that could be discharged into aquatic environments. However, little is known regarding the potential microbial impact on human health. This study investigated microbial contamination from coastal industrial–residential community areas in nine sampling sites in waterways during three dry events. A general microbial source tracking (MST) marker, GenBac3, was detected in all samples from all three events, indicating continuing fecal pollution in the area, mostly from human sewage contamination. This was shown by the human-specific genetic marker crAssphage (88.9%) and human polyomavirus (HPyVs; 92.6%) detection. Enteric human adenovirus (HAdV40/41) showed three positive results only from residential sites in the first event. No spatial difference was observed for MST markers and traditional fecal indicators (total coliforms and Escherichia coli) in each event. Still, a significantly lower abundance of GenBac3, HPyVs, and total coliforms in the first sampling event was detected. Spearman’s rho analysis indicated a strong correlation among certain pairs of microbial parameters. Multivariate analysis revealed two clusters of samples separated by land use type (industrial vs. residential). According to factor analysis of mixed data, the land use parameter was more associated with physicochemical parameters (i.e., salinity, conductivity, water temperature, and dissolved oxygen). A Quantitative Microbial Risk Assessment (QMRA) was then conducted to estimate the annual infection risks of HAdV40/41 for non-potable water reuse purposes using predicted concentrations from crAssphage and HPyVs. The highest risks (95th percentiles) were ranked by food crop irrigation, aquaculture, and toilet flushing, at 10–1, 10–2, and 10–3 per person per year (pppy). Required treatment levels to achieve a 10–4 pppy annual infection risk were estimated. QMRA-based water treatment scenarios were suggested, including chlorination for toilet flushing reuse and depth filtration prior to chlorination for aquaculture and food crop irrigation. Microbial monitoring combined with a QMRA could provide better insights into fecal pollution patterns and the associated risks, facilitating effective water quality management and appropriate prior treatments for water reuse.

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“…Los sistemas agrícolas de regadío son considerados generadores de contaminación difusa de aguas superficiales, pues pueden inducir problemas de eutroficación e hipoxia por excesos en concentración de sales de nitrógeno y fósforo por la aplicación de fertilizantes [8] Según Pachepsky [9], la calidad microbiana de las aguas de irrigación puede ser afectada por diferentes fuentes: patrones climáticos [10], deyecciones animales [11], fuentes de contaminación difusa como la escorrentía que lava zonas de los agroecosistemas [12] o ingreso de aguas residuales sin tratamientos adecuados [13], prácticas agrícolas como abonos orgánicos y purines [14]. Además, se pueden producir cambios en la movilización del agua entre la fuente y los campos de cultivos.…”

Section: Introductionunclassified

Análisis de la calidad de aguas de vertido en el Distrito de Riego Arenal-Tempisque (DRAT)

Monge

González

2021

Ingeniería

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El Distrito de Riego Arenal-Tempisque (DRAT) es la dependencia gubernamental que regula la distribución del agua de riego en las fincas agrícolas de la provincia de Guanacaste. El DRAT monitorea semestralmente la calidad del agua de vertido utilizada en irrigación, a través de reportes operacionales. Sin embargo, no es una práctica común en distritos de riego realizar estudios donde se analice el comportamiento de los parámetros medidos en el tiempo. Este estudio desarrolló una evaluación multivariada y geoestadística a partir de la caracterización de dos variables microbiológicas y veinte parámetros físico-químicos de la calidad del agua con respecto a componentes espaciales como: localización, área y distancia. Además, se realizó un análisis de estadística descriptiva para doce puntos de muestreo evaluados en un período de diez años (2008-2018). Se aplicó un análisis de componentes principales (ACP), donde los autovectores no mostraron diferencias apreciables para visualizar el peso de las variables de forma independiente. No obstante, el análisis permitió agrupar los parámetros que explican el comportamiento dentro del sistema estudiado como: la concentración de sales (CP1); las sustancias activas al azul de metileno y el contenido de nitratos totales (CP2); y la dinámica biológica (CP3); que se pueden relacionar con prácticas agrícolas. Adicionalmente, se llevó a cabo un análisis de conglomerados jerárquicos para los lugares en estudio y una regresión de mínimos cuadrados parciales (PLS2) con respecto a las variables geoestadísticas, obteniéndose que para ambas pruebas los resultados fueron concordantes con el ACP.

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Comparing microbial risks from multiple sustainable waste streams applied for agricultural use: Biosolids, manure, and diverted urine

Cited by 18 publications

References 171 publications

Human Adenovirus Molecular Characterization in Various Water Environments and Seasonal Impacts in Riyadh, Saudi Arabia

Human Adenovirus Molecular Characterization in Various Water Environments and Seasonal Impacts in Riyadh, Saudi Arabia

Human Fecal Pollution Monitoring and Microbial Risk Assessment for Water Reuse Potential in a Coastal Industrial–Residential Mixed-Use Watershed

Análisis de la calidad de aguas de vertido en el Distrito de Riego Arenal-Tempisque (DRAT)

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