Wastewater treatment plant effluent introduces recoverable shifts in microbial community composition in receiving streams

Price, Jacob R.; Ledford, Sarah H.; Ryan, Michael O.; Toran, Laura; Sales, Christopher M.

doi:10.1016/j.scitotenv.2017.09.162

Cited by 81 publications

(51 citation statements)

References 74 publications

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“…Many approaches such as shared microbial species counting, microbial source monitoring, and commonly used neutral community modeling rely on an abundance profile to predict the degree of coverage between upstream and downstream networks [117,118]. Therefore, they cannot propose the contribution of immigrants to the role of the downstream communities because individual immigrants are not taken into account after reaching the receiving environment.…”

Section: Quantifying the Contribution Of Microbial Immigration In Ecomentioning

confidence: 99%

RETRACTED ARTICLE: Metagenomics for taxonomy profiling: tools and approaches

et al. 2020

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The study of metagenomics is an emerging field that identifies the total genetic materials in an organism along with the set of all genetic materials like deoxyribonucleic acid and ribose nucleic acid, which play a key role with the maintenance of cellular functions. The best part of this technology is that it gives more flexibility to environmental microbiologists to instantly pioneer the immense genetic variability of microbial communities. However, it is intensively complex to identify the suitable sequencing measures of any specific gene that can exclusively indicate the involvement of microbial metagenomes and be able to advance valuable results about these communities. This review provides an overview of the metagenomic advancement that has been advantageous for aggregation of more knowledge about specific genes, microbial communities and its metabolic pathways. More specific drawbacks of metagenomes technology mainly depend on sequence-based analysis. Therefore, this 'targeted based metagenomics' approach will give comprehensive knowledge about the ecological, evolutionary and functional sequence of significantly important genes that naturally exist in living beings either human, animal and microorganisms from distinctive ecosystems.

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Section: Quantifying the Contribution Of Microbial Immigration In Ecomentioning

confidence: 99%

RETRACTED ARTICLE: Metagenomics for taxonomy profiling: tools and approaches

et al. 2020

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“…High nutrient loads to streams below WWTP effluent outfalls lead to eutrophication issues, both locally and downstream (Figueroa-Nieves, McDowell, Potter, & Martínez, 2016;Goyette et al, 2018;Haggard et al, 2005;Martí, Aumatell, Gode, Poch, & Sabater, 2004) along with changes to biological communities (Gücker et al, 2006;Price, Ledford, Ryan, Toran, & Sales, 2018;Ribot et al, 2012). A range of impacts of large nutrient loads below WWTP effluent outfalls to nutrient cycling has been observed, requiring more research.…”

Section: Wastewater Treatment Plants As Nutrient Sourcesmentioning

confidence: 99%

Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Ledford

Toran

2019

Hydrological Processes

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Wastewater treatment plants are major point-sources of nutrients to streams globally, but the impact on receiving streams is not always clear. Previous research has shown mixed responses in receiving streams, with some showing no net retention through instream processing for large distances below plants and some showing high rates of processing and retention. This study focuses on Sandy Run, a small, suburban stream in Montgomery County, PA, that receives effluent from two plants, where effluent makes up an estimated 50% of outlet discharge at baseflow. Two sites were monitored in late summer baseflow using high-temporal loggers to evaluate nitrate and phosphate retention with distance below the plants. Effluent quantity was monitored immediately below the effluent outfalls using specific conductivity as a conservative signal of solute fluctuations throughout the day. A site 1 km downstream showed diel nitrate changes, but despite moderate gross primary productivity and ecosystem respiration rates, there was little net retention of nutrients and the diel nitrate signal can be attributed to advection and dispersion of variable upstream effluent. A site 5.4 km below the plant showed a diel nitrate signal as well, but baseflow daily hysteresis plots of nitrate and specific conductivity showed the effluent and nitrate peaks did not coincide. Instead, the effluent input signal was seen overnight, but there was in-stream removal and release processes during the day. Over the distance to this site, the stream was metabolizing some of the high nutrient loads, although gross primary productivity and ecosystem respiration rates were lower. It is important to understand subdaily changes in nutrient processing to fully quantify the impacts of effluent on small streams at different scales. Furthermore, looking at the diel signal without considering conservative transport would overestimate in-stream processing. K E Y W O R D Sdaily hysteresis, ecosystem respiration (ER), gross primary productivity (GPP), high-temporal sensor, in-stream metabolism, nitrogen cycling, urban stream, wastewater treatment plant

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“…; Rice and Westerhoff ; Price et al. ). Hydrologic flow in some semi‐arid urban rivers has been historically snowmelt‐dominated, with the greatest potential for dilution occurring in spring when tributary inputs attain annual maximum discharge.…”

Section: Introductionmentioning

confidence: 99%

“…However, there is notable seasonal and spatial variation in the degree to which non-effluent sources interact with wastewater inputs to mediate water quantity and quality. The influence of effluent on water quality can vary in semi-arid rivers (van Vliet et al 2017), because the effect of wastewater is modulated by the timing and magnitude of dilution potential relative to pollutant concentration (Gurnell et al 2007; Rice and Westerhoff 2017;Price et al 2018). Hydrologic flow in some semi-arid urban rivers has been historically snowmelt-dominated, with the greatest potential for dilution occurring in spring when tributary inputs attain annual maximum discharge.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variability in Water Sources Controls Chemical and Physical Properties of a Semi‐arid Urban River System

Shah

Jameel

Smith

et al. 2019

J American Water Resour Assoc

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We conducted synoptic surveys over three seasons in one year to evaluate the variability in water sources and geochemistry of an urban river with complex water infrastructure in the state of Utah. Using stable isotopes of river water (δ18O and δ2H) within a Bayesian mixing model framework and a separate hydrologic mass balance approach, we quantified both the proportional inputs and magnitude of discharge associated with “natural” (lake, groundwater, and tributary inputs) and “engineered” (effluent and canal inflows) sources. The relative importance of these major contributors to streamflow varied both spatially and seasonally. Spatiotemporal patterns of dissolved oxygen, temperature, pH, calcium, chloride, nitrate, and orthophosphate indicated seasonal shifts in dominant sources of river water played an important role in determining water quality. We show although urban rivers are clearly influenced by novel water sources created by water infrastructure, they continue to reflect the imprint of “natural” water sources, including diffuse groundwater. Resource managers thus may need to account for the quantity of both surface waters and also historically overlooked groundwater inputs to address water quality concerns in urban rivers.

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Wastewater treatment plant effluent introduces recoverable shifts in microbial community composition in receiving streams

Cited by 81 publications

References 74 publications

RETRACTED ARTICLE: Metagenomics for taxonomy profiling: tools and approaches

RETRACTED ARTICLE: Metagenomics for taxonomy profiling: tools and approaches

Downstream evolution of wastewater treatment plant nutrient signals using high‐temporal monitoring

Spatiotemporal Variability in Water Sources Controls Chemical and Physical Properties of a Semi‐arid Urban River System

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