Eric Dickenson
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View article: Application of granular and ozone-biological activated carbon treatments for the mitigation of organic chemical peaking events in potable water schemes
Application of granular and ozone-biological activated carbon treatments for the mitigation of organic chemical peaking events in potable water schemes Open
Direct potable reuse employing reverse osmosis (RO) and advanced oxidation processes (AOP) is emerging as a solution to combat water scarcity in many communities. However, the intermittent passage of low molecular weight (LMW) volatile org…
View article: Classification machine learning to detect de facto reuse and cyanobacteria at a drinking water intake
Classification machine learning to detect de facto reuse and cyanobacteria at a drinking water intake Open
Harmful algal blooms (HABs) or higher levels of de facto water reuse (DFR) can increase the levels of certain contaminants at drinking water intakes. Therefore, the goal of this study was to use multi-class supervised machine learning (SML…
View article: DNA origami: thinking ‘outside the fold’ for direct integrity testing of membranes for virus removal in potable reuse applications
DNA origami: thinking ‘outside the fold’ for direct integrity testing of membranes for virus removal in potable reuse applications Open
Increasing water scarcity and water quality impairment are drivers for broader implementation of potable reuse. To maximize the sustainability of these systems, it is important to address pathogen log reduction value (LRV) ‘gaps’.
View article: Correction: <i>N</i>-Nitrosodimethylamine (NDMA) formation and mitigation in potable reuse treatment trains employing ozone and biofiltration
Correction: <i>N</i>-Nitrosodimethylamine (NDMA) formation and mitigation in potable reuse treatment trains employing ozone and biofiltration Open
Correction for ‘ N -Nitrosodimethylamine (NDMA) formation and mitigation in potable reuse treatment trains employing ozone and biofiltration’ by Fernanda Bacaro et al. , Environ. Sci.: Water Res. Technol. , 2019, 5 , 713–725, https://doi.o…
View article: Critical Review on Bromate Formation during Ozonation and Control Options for Its Minimization
Critical Review on Bromate Formation during Ozonation and Control Options for Its Minimization Open
Ozone is a commonly applied disinfectant and oxidant in drinking water and has more recently been implemented for enhanced municipal wastewater treatment for potable reuse and ecosystem protection. One drawback is the potential formation o…
View article: Detecting industrial discharges at an advanced water reuse facility using online instrumentation and supervised machine learning binary classification
Detecting industrial discharges at an advanced water reuse facility using online instrumentation and supervised machine learning binary classification Open
Industries occasionally discharge slugs of concentrated pollutants to municipal sewers. These industrial discharges can cause challenges at wastewater treatment plants (WWTPs) and reuse systems. For example, elevated total organic carbon t…
View article: Characterizing the chemical and microbial fingerprint of unsheltered homelessness in an urban watershed
Characterizing the chemical and microbial fingerprint of unsheltered homelessness in an urban watershed Open
Unsheltered homelessness is rapidly becoming a critical issue in many cities worldwide. The worsening situation not only highlights the socioeconomic plight, but it also raises awareness of ancillary issues such as the potential implicatio…
View article: Granular activated carbon adsorption of perfluoroalkyl acids from ground and surface water
Granular activated carbon adsorption of perfluoroalkyl acids from ground and surface water Open
Adsorption of perfluoroalkyl acids (PFAAs) by granular activated carbon (GAC) was evaluated in bench‐, pilot‐, and full‐scale studies to determine effects of PFAA characteristics and background organic matter on carbon use rates. Rapid sma…
View article: Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge
Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge Open
Hampton Roads Sanitation District recently initiated an indirect potable reuse project to recharge the Potomac Aquifer in southeastern Virginia, USA. Source control and granular activated carbon (GAC) treatment are employed to minimize per…
View article: Using machine learning classification to detect simulated increases of de facto reuse and urban stormwater surges in surface water
Using machine learning classification to detect simulated increases of de facto reuse and urban stormwater surges in surface water Open
Water quality events such as increases in stormwater or wastewater effluent in drinking water sources pose hazards to drinking water consumers. Stormwater and wastewater effluent enter Lake Mead-an important drinking water source in the so…
View article: Biochar Water Treatment for Control of Organic Micropollutants with UVA Surrogate Monitoring
Biochar Water Treatment for Control of Organic Micropollutants with UVA Surrogate Monitoring Open
Biochar adsorbent can be produced in low-resource settings using local materials and simple pyrolysis technology, and it has shown promise for uptake of micropollutants (MPs) such as pesticides, pharmaceuticals, industrial compounds, and c…
View article: A p<scp>erformance‐based</scp> indicator chemical framework for potable reuse
A p<span>erformance‐based</span> indicator chemical framework for potable reuse Open
Many organic chemicals occur in reclaimed water at higher concentrations than in conventional drinking water sources. Some of these chemicals are known to occur at concentrations that pose chronic health risks. The toxicity or occurrence o…
View article: Assessment of PFAS fate, transport, and treatment inhibition associated with a simulated AFFF release within a WASTEWATER treatment plant
Assessment of PFAS fate, transport, and treatment inhibition associated with a simulated AFFF release within a WASTEWATER treatment plant Open
Sequencing batch reactors (SBRs) were operated for 36 days to simulate the potential wastewater treatment impacts as well as fate and transport of per- and polyfluoroalkyl substances (PFAS) that could be associated with a release of alcoho…
View article: Identification of Transformation Products for Benzotriazole, Triclosan, and Trimethoprim by Aerobic and Anoxic-Activated Sludge
Identification of Transformation Products for Benzotriazole, Triclosan, and Trimethoprim by Aerobic and Anoxic-Activated Sludge Open
This study identified biotransformation products formed from three anthropogenic trace organic compounds (TOrCs) (benzotriazole, triclosan, and trimethoprim) in aerobic and anoxic sludge from a biological nutrient removal (BNR) wastewater …
View article: N-nitrosomorpholine in potable reuse
N-nitrosomorpholine in potable reuse Open
As potable reuse guidelines and regulations continue to develop, the presence of N-nitrosamines is a primary concern because of their associated health concerns. In this study, bench-, pilot-, and full-scale tests were conducted to focus o…
View article: Removal of perfluoroalkyl and polyfluoroalkyl substances in potable reuse systems
Removal of perfluoroalkyl and polyfluoroalkyl substances in potable reuse systems Open
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a group of persistent contaminants that have been identified throughout the aquatic environment. In this study, ten targeted perfluoroalkyl acids (PFAAs), three targeted PFAA precur…
View article: Investigation of biotransformation, sorption, and desorption of multiple chemical contaminants in pilot-scale drinking water biofilters
Investigation of biotransformation, sorption, and desorption of multiple chemical contaminants in pilot-scale drinking water biofilters Open
The evolving demands of drinking water treatment necessitate processes capable of removing a diverse suite of contaminants. Biofiltration can employ biotransformation and sorption to remove various classes of chemicals from water. Here, pi…