Investigating landfill leachate as a source of trace organic pollutants

Clarke, Bradley O.; Anumol, Tarun; Barlaz, Morton A.; Snyder, Shane A.

doi:10.1016/j.chemosphere.2015.02.030

Cited by 166 publications

(39 citation statements)

References 56 publications

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“…Characterization of DOM revealed that humic substances and hydrophilic organics are the predominant fraction (Zhang et al, 2007), which leads to its low biodegradability (Zhang et al, 2013). Since landfill leachate has been reported as an important source of trace organic pollutants (Eggen et al, 2010;Clarke et al, 2015), it is not surprised that some persistent organic pollutants, such as aromatic compounds, long-chain hydrocarbons and halo-hydrocarbons were detected in LBs (Zhang et al, 2013). Thus, the LBs have to be properly treated to remove these organic contaminants before they can be discharged into the environment.…”

Section: Introductionmentioning

confidence: 99%

Removal of refractory organics in nanofiltration concentrates of municipal solid waste leachate treatment plants by combined Fenton oxidative-coagulation with photo – Fenton processes

Zhao

Qin

et al. 2016

Chemosphere

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Section: Introductionmentioning

confidence: 99%

Removal of refractory organics in nanofiltration concentrates of municipal solid waste leachate treatment plants by combined Fenton oxidative-coagulation with photo – Fenton processes

Zhao

Qin

et al. 2016

Chemosphere

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“…Landll leachate from municipal solid waste are potential emission hotspots for PFASs, [13][14][15][16] though concentrations vary widely. [13][14][15]17,18 There are few available data on PFAS occurrence in Norwegian landll leachates; 19,20 though the rst available data, comprising data from ten landlls from 2003-2007 based on non-target screening, indicated short-chain PFASs were infrequently detected (or analysed for (ref. 21)), and long-chain PFASs clearly dominated.…”

Section: Introductionmentioning

confidence: 99%

Leachate emissions of short- and long-chain per- and polyfluoralkyl substances (PFASs) from various Norwegian landfills

Knutsen

Mæhlum

Haarstad

et al. 2019

Environ. Sci.: Processes Impacts

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“…Artificial sweeteners have been detected in rivers, lakes, and groundwater where wastewater is known to discharge (Brorström‐Lundén et al, 2008; Buerge et al, 2009; Scheurer et al, 2009; Oppenheimer et al, 2011; Spoelstra et al, 2013; Robertson et al, 2013; Van Stempvoort et al, 2013). They have also been found in the groundwater underlying urban areas with leaky sewer systems (Wolf et al, 2012; Tran et al, 2014; Lee et al, 2015) and as a component of landfill leachate (Roy et al, 2014; Clarke et al, 2015). …”

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confidence: 99%

Artificial Sweeteners Reveal Septic System Effluent in Rural Groundwater

2017

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It has been widely documented that municipal wastewater treatment plant effluents are a major source of artificial sweeteners to surface waters. However, in rural areas, the extent to which septic systems contribute these same compounds to groundwater aquifers is largely unknown. We examined the occurrence of four commonly used artificial sweeteners in an unconfined sand aquifer that serves as a water supply for rural residents, as a receptor of domestic wastewater from septic systems, and as a source of baseflow to the Nottawasaga River, ON, Canada. Groundwater from the Lake Algonquin Sand Aquifer in the southern Nottawasaga River Watershed was collected from private domestic wells and as groundwater seeps discharging along the banks of the Nottawasaga River. Approximately 30% of samples had detectable levels of one or more artificial sweeteners, indicating the presence of water derived from septic system effluent. Using acesulfame concentrations to estimate the fraction of septic effluent in groundwater samples, ∼3.4 to 13.6% of the domestic wells had 1% or more of their well water being derived from septic system effluent. Similarly, 2.0 to 4.7% of the groundwater seeps had a septic effluent contribution of 1% or more. No relationship was found between the concentration of acesulfame and the concentration of nitrate, ammonium, or soluble reactive phosphorus in the groundwater, indicating that septic effluent is not the dominant source of nutrients in the aquifer. It is expected that the occurrence of artificial sweeteners in shallow groundwater is widespread throughout rural areas in Canada. Core Ideas Samples were collected from domestic wells and groundwater seeps in rural Ontario. Artificial sweeteners were found in >30% of rural groundwater samples. Acesulfame was used to estimate the fraction of septic effluent in groundwater. Septic effluent was not a significant source of nutrients in the aquifer.

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Investigating landfill leachate as a source of trace organic pollutants

Cited by 166 publications

References 56 publications

Removal of refractory organics in nanofiltration concentrates of municipal solid waste leachate treatment plants by combined Fenton oxidative-coagulation with photo – Fenton processes

Removal of refractory organics in nanofiltration concentrates of municipal solid waste leachate treatment plants by combined Fenton oxidative-coagulation with photo – Fenton processes

Leachate emissions of short- and long-chain per- and polyfluoralkyl substances (PFASs) from various Norwegian landfills

Artificial Sweeteners Reveal Septic System Effluent in Rural Groundwater

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