A5028968712- Constructed Wetlands for Wastewater Treatment
- Hydrology and Watershed Management Studies
- Soil and Water Nutrient Dynamics
- Wastewater Treatment and Nitrogen Removal
- Scientific Computing and Data Management
- Plant Pathogens and Resistance
- Wastewater Treatment and Reuse
- Composting and Vermicomposting Techniques
- Viral gastroenteritis research and epidemiology
- Integrated Water Resources Management
- Groundwater and Isotope Geochemistry
- Radioactive element chemistry and processing
- Coastal wetland ecosystem dynamics
- Respiratory viral infections research
- Viral Infections and Immunology Research
- Soil erosion and sediment transport
- Water Quality and Pollution Assessment
- Analytical chemistry methods development
- Phosphorus and nutrient management
- Diatoms and Algae Research
- Peatlands and Wetlands Ecology
- Water Treatment and Disinfection
- Hydrology and Sediment Transport Processes
- Thallium and Germanium Studies
Virginia Tech
2024
East Carolina University
2021
Clemson University
2019-2021
University of Illinois Urbana-Champaign
2013-2015
The need to mitigate nitrate export from corn and soybean fields with subsurface (tile) drainage systems, a major environmental issue in the midwestern United States, has made efficacy of field-edge, bioreactors an active subject research. This study three such located on University Illinois South Farms during their first 6 mo operation (July-Dec. 2012) focused interactions seasonal temperature changes hydraulic retention times (HRTs), which were experimental manipulation. Changes nitrate,...
Abstract Many small streams in coastal watersheds the southeastern U nited S tates are modified for agricultural, residential, and commercial development. In outh C arolina Lower Coastal Plain, low‐relief topography a shallow water table make stream channelization ubiquitous. To quantify impacts of urbanization channelization, we measured flow sediment from an urbanizing watershed forested watershed. Flow export rates were used to infer specific yields nonforested regions Study objectives...
Background Enteric viruses are responsible for waterborne and foodborne infections affecting a large number of people around the world. Picobirnavirus (PBV) is highly versatile virus, detected in wide range hosts has been reported to be associated with gastroenteritis humans animals. Methods Molecular screening environmental water samples PBV was performed over period two years from November 2016 July 2018. The virus by RT multiplex-PCR, nucleotide sequencing, phylogenetic analysis. Results...
<abstract><title><italic>Abstract. </italic></title> One potential practice to reduce nitrate and phosphate transfer from subsurface (tile)-drained farmlands is the use of fixed-bed, in-field bioreactors. These bioreactors are trenches filled with carbon material (usually wood chips), which serve as a medium for denitrifying bacteria grow, thus reducing amount that enters water bodies tile drains. If bioreactor undersized, will not be detained long enough denitrification occur, or much...
Abstract Elevated concentrations of phosphorus (P) and other nutrients common in wastewater treatment plant (WWTP) effluent have been shown to contribute the proliferation harmful algal blooms, which may lead fish kills related aquatic hypoxia. Increased understanding negative effects associated with elevated P prompted more strict regulation WWTP recent years. The use low‐cost potentially regenerative adsorptive phosphate filters has potential decrease released natural waters. This research...
Highlights A floating treatment wetland (FTW) planted with Pontederia cordata reduced the flow-through of viable zoospores. Bacterial communities associated FTWs that differed in remediation efficacy were characterized. have potential to reduce plant pathogen load water recycled for agricultural irrigation. Abstract. The increased incidence and severity drought reliable access freshwater irrigation sources nursery greenhouse producers. Many producers are now considering onsite reuse captured...
Constructed wetlands have been used for decades in agricultural settings to remediate nutrients and other agrichemicals from irrigation runoff drainage; however, little is known about the presence distribution of Phytophthora species within water being treated constructed wetlands. Therefore, we collected plant samples vegetated collection channels treatment stages two wetland systems receiving at a commercial nursery Cairo, GA, determine if roots plants were infested by . Samples 12 times,...
Increased competition for freshwater resources, negative environmental impacts associated with non-treated agricultural and specialty crop production runoff, potential more restrictive regulations concerning water use disposal have provided growers significant incentives to develop onsite treatment enable reuse. As part of the Clean WateR3 project initiatives, three ecologically based technologies are being evaluated remove contaminants (e.g., phytopathogens, pesticides, or mineral...
This study evaluates spatiotemporal relationships between water quality parameters (WQPs), nutrients, suspended solids, and biochemical oxygen demand (BOD) concentrations within an engineered wastewater treatment wetland system in the Georgia Piedmont, USA. We explored factors related to efficiency a heavily loaded 630-m2 surface flow over 2-yr period. Relationships temperature, dissolved (DO), oxidation-reduction potential (ORP) were observed; also seen these WQPs nutrient concentrations....
Investigations of the susceptibility aquatic plants to species Phytophthora are limited. Therefore, objective this study was assess potential six plant species, frequently used in constructed wetlands or vegetated channels, infection by five commonly found at nurseries southeastern United States. In a greenhouse experiment, roots each (Agrostis alba, Carex stricta, Iris ensata ‘Rising Sun’, Panicum virgatum, Pontederia cordata, and Typha latifolia) growing aqueous solutions were exposed...