Research Articles, Charles E. Via Jr. Department of Civil and Environmental Engineering
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A human exposome framework for guiding risk management and holistic assessment of recycled water quality
(Royal Society of Chemistry, 2016-04-12)Challenges associated with water scarcity and increasing water demand are leading many cities around the globe to consider water reuse as a step towards water sustainability. Recycled water may be used in a spectrum of ... -
Long-term performance of a 200 liter modularized microbial fuel cell system treating municipal wastewater: treatment, energy, and cost
(Royal Society of Chemistry, 2016-02-04)Microbial fuel cells (MFCs) have been intensively studied at a bench scale and the further development of this technology requires system scaling up and understanding of their performance under non-laboratory conditions. ... -
Aggregation and sedimentation of magnetite nanoparticle clusters
(Royal Society of Chemistry, 2016-03-24)Magnetite nanoparticles are redox active constituents of subsurface and corrosive environments. In this study, we characterized the aggregation and sedimentation behavior of well characterized magnetite nanoparticle clusters ... -
Highly stable SERS pH nanoprobes produced by co-solvent controlled AuNP aggregation
(Royal Society of Chemistry, 2016-04-22)Production of gold nanoparticle (AuNP) surface-enhanced Raman spectroscopy (SERS) nanoprobes requires replicable aggregation to produce multimers with high signal intensity. Herein, we illustrate a novel, yet simple, ... -
Patterns and Limitations of Urban Human Mobility Resilience under the Influence of Multiple Types of Natural Disaster
(Public Library of Science, 2016-01-28)Natural disasters pose serious threats to large urban areas, therefore understanding and predicting human movements is critical for evaluating a population’s vulnerability and resilience and developing plans for disaster ... -
Sediment microbial fuel cells for wastewater treatment: challenges and opportunities
(The Royal Society of Chemistry, 2015-03-27)Sediment microbial fuel cells (SMFCs) have been intensively investigated for the harvest of energy from natural sediment, but studies of their application for wastewater treatment mainly occurred in the past 2-3 years. ... -
Preparation and evaluation of nanocellulose-gold nanoparticle nanocomposites for SERS applications
(The Royal Society of Chemistry, 2015-06-09)Nanocellulose is of research interest due to its extraordinary optical, thermal, and mechanical properties. The incorporation of guest nanoparticles into nanocellulose substrates enables production of novel nanocomposites ... -
Microbial composition of purified waters and implications for regrowth control in municipal water systems
(The Royal Society of Chemistry, 2015-08-25)The limits of water treatment to control microbial regrowth were examined using highly purified waters. Measurable microbial genetic material was detected in the product water in a survey of thirteen laboratory pure water ... -
Survey of green building water systems reveals elevated water age and water quality concerns
(The Royal Society of Chemistry, 2015-11-05)Widespread adoption of innovative water conservation strategies has potential unintended consequences for aesthetics and public health. A cross-section of green buildings were surveyed and compared to typical conventional ... -
Plasmonic colorimetric and SERS sensors for environmental analysis
(The Royal Society of Chemistry, 2015-03-10)The potential for water pollution outbreaks requires the development of rapid, yet simple detection methods for water quality monitoring. Plasmonic nanostructures such as gold (AuNPs) and silver (AgNPs) nanoparticles are ... -
Room temperature seed mediated growth of gold nanoparticles: mechanistic investigations and life cycle assesment
(The Royal Society of Chemistry, 2015-08-04)In this study, we report the first room temperature seed-mediated synthesis of gold nanoparticles (AuNPs) in the presence of citrate and a gold salt. In contrast to citrate-reduction in boiling water, these mild reaction ... -
Optimizing the performance of a membrane bio-electrochemical reactor using an anion exchange membrane for wastewater treatment
(The Royal Society of Chemistry, 2015-03-05)A membrane bioelectrochemical reactor (MBER) is a system integrating ultrafiltration membranes into microbial fuel cells (MFCs) for energy-efficient wastewater treatment. To improve nitrogen removal, an MBER based on an ... -
Enhanced disinfection by-product formation due to nanoparticles in wastewater treatment plant effluents
(The Royal Society of Chemistry, 2015-07-13)Nanoparticles (NPs) are increasingly being incorporated into consumer products and are being used for industrial applications in ways that will lead to their environmental dissemination via wastewater treatment plants ... -
One-pot synthesis of high-performance Co/graphene electrocatalysts for glucose fuel cells free of enzymes and precious metals
(The Royal Society of Chemistry, 2015-05-01)A facile recipe has been developed to prepare three-dimensional nanoarchitectures of nitrogen-doped graphene loading Co nanoparticle hybrids (Co/NG). The hybrids show an outstanding electrocatalytic activity for glucose ... -
Sources of airborne microorganisms in the built environment
(2015-12-22)Each day people are exposed to millions of bioaerosols, including whole microorganisms, which can have both beneficial and detrimental effects. The next chapter in understanding the airborne microbiome of the built environment ... -
Sediment-Water Column Oxygen and Nutrient Fluxes in Nearshore Environments of the Lower Delmarva Peninsula, USA
(Inter-Research, 1995)Sediment-water column exchanges of oxygen, dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP) were measured in situ over an annual cycle for sandy and silt-clay sediment types in a shallow Chesapeake ... -
Quantifying Human Mobility Perturbation and Resilience in Hurricane Sandy
(Public Library of Science, 2014-11-19)Human mobility is influenced by environmental change and natural disasters. Researchers have used trip distance distribution, radius of gyration of movements, and individuals' visited locations to understand and capture ... -
Water heater temperature set point and water use patterns influence Legionella pneumophila and associated microorganisms at the tap
(2015-12-01)Background Lowering water heater temperature set points and using less drinking water are common approaches to conserving water and energy; yet, there are discrepancies in past literature regarding the effects of water ... -
Bioelectrochemical production of hydrogen in an innovative pressure-retarded osmosis/microbial electrolysis cell system: experiments and modeling
(2015-08-14)Background While microbial electrolysis cells (MECs) can simultaneously produce bioelectrochemical hydrogen and treat wastewater, they consume considerable energy to overcome the unfavorable thermodynamics, which is not ... -
Environmental science and engineering applications of nanocellulose-based nanocomposites
(The Royal Society of Chemistry, 2014-06-26)Compared with cellulose, the primary component of the paper we use every day, nanocellulose has a much smaller diameter (typically <10 nm) that renders it many unique properties. Amongst many others, these properties include ...
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