Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"indirect potable reuse"”.
-
A Decision Support System for Indirect Potable Reuse Based on Integrated Modeling
… reclamation facilities (WRFs) is critical for an indirect potable reuse (IPR) system, especially when the reclaimed water constitutes a major portion of the reservoir's safe yield. It requires timely and informed decision-making in response to the fluctuating operational conditions, e.g., weather …
-
Impact of Indirect Potable Reuse on Endocrine Disrupting Compounds in the Potomac River Basin
… best management practice referred to as planned indirect potable reuse (IPR) and its impacts on EDCs. The Occoquan Watershed is a planned IPR subwatershed of the Potomac River Basin. Water samples were collected at the water reclamation plant discharge (Upper Occoquan Service Authority), up- and …
-
Evaluation of Bromate Formation and Control using Preformed Monochloramine in Ozonation for Indirect Potable Reuse
… is a powerful oxidant and disinfectant used in potable wastewater reuse to destroy specific harmful compounds, including pharmaceuticals, personal care products and endocrine disrupting compounds. Ozonation also increases the biodegradability of recalcitrant organic compounds and inactivates …
-
Unveiling Causal Links, Temporal Patterns, and System-Level Dynamics of Freshwater Salinization Using Transit Time Distribution Theory
… syndrome (FSS). Simultaneously, the practice of indirect potable reuse (IPR) that augments critical water supplies with treated wastewater to enhance water security presents complexities in water quality management. This dissertation explores the complex interplay between FSS and IPR in the …
-
Analysis of Aquifer and Operational Conditions for Successful Soil Aquifer Treatment of Treated Wastewater via Synthesis of Published Full-Scale and Laboratory-Scale Studies
… thereby facilitating the use of sustainable indirect potable reuse.</p>
-
Evaluation of Soil Aquifer Treatment in a Lab Scale Soil Column Experiment
… barriers to pathogens and contaminants in indirect potable reuse (IPR) applications. A soil column study was conducted by Hampton Roads Sanitation District in order to evaluate the effectiveness of SAT, as a component of its IPR project involving the replenishment of the Potomac Aquifer …
-
Ionic Characterization of Laundry Detergents: Implications for Consumer Choice and Inland Freshwater Salinization
… is also noteworthy as a flagship example of indirect potable reuse, which further adds complexity to understanding the sources of rising levels of sodium and other types of salinity. To help understand the role residential discharges might play in salinization of the Occoquan Reservoir, a …
-
An Investigation into the Effects of an External Electron Acceptor on Nutrient Cycling at the Sediment-Water Interface of the Occoquan Reservoir
… of the study is that the reservoir is part of an indirect potable reuse system where the source of nitrate is the product water from an advanced water reclamation facility (WRF). Field and laboratory studies showed that nitrate at a concentration greater than 1 mg/L N was effective in controlling …
-
Occoquan Reservoir and Watershed: A Water Quality Assessment 1973–2019
The Occoquan Reservoir is part of the largest indirect potable reuse systems in the United States. It in an important water supply source for the Northern Virginia area, as well as, an ecological and recreational area. Furthermore, the Occoquan Reservoir protects the water quality of the Chesapeake …
-
Impact of Soil Properties on Removal of Emerging Contaminants from Wastewater Effluent During Soil Aquifer Treatment
… local groundwater supplies while allowing for indirect potable reuse, if contaminants of concern such as ECs can be effectively removed from the water. Since wastewater effluent can contain a variety of contaminants with myriad physical and chemical properties, understanding the potential of …
-
Energy Sensitive Urban Water Planning in Developing Countries: Unlocking the Potential of Distributed Recycled Water Systems to Reduce the Overall Energy Intensity for Urban Water Services
… intensities varied from 0.83 to 1.64 kWh/kL for potable water supplies, and 0.38 to 1.10 kWh/kL for non-potable water supplies, depending on the size of the plant and the technology used – all of which have lower energy intensities than the energy intensity for the selected zone (2.03 kWh/kL) and …
-
The feasibility of augmenting the Stellenbosch potable water supply by establishing a direct potable reuse plant
… the feasibility of implementing a direct potable reuse (DPR) plant to augment the future water resource mix from a technical, social, environmental and economic standpoint. Over the past two decades there has been a global shift towards direct and indirect potable reuse schemes to augment …
-
Removal of Total Organic Carbon and Emerging Contaminants in an Advanced Water Treatment process using Ozone-BAC-GAC
Indirect potable reuse has been practiced with the potential to enhance sustainability of water resources if planned accordingly. Depending on the pretreatment implemented for potable reuse, emerging contaminants; such as pharmaceuticals, personal care products, industrial solvents, bacterial/viral …
-
Investigating the Impact of Aquifer Long Term Replenishment on the Potomac Aquifer System in Virginia
Groundwater plays a fundamental role in water resource sustainability in Virginia (USA), but overpumping has caused significant declines in the potentiometric surface in the Potomac Aquifer System (PAS). With water levels falling, communities are at risk of wells running dry, saltwater intrusion, …
-
Evaluation of Contaminant Removal Through Soil Aquifer Treatment by a Lab Scale Soil Column Experiment Including a Trace Contaminant Spike Test
… in managed aquifer recharge (MAR), one method of indirect potable water reuse. As part of Hampton Roads Sanitation District's (HRSD) MAR project, The Sustainable Water Initiative for Tomorrow (SWIFT), a soil column study was performed using four columns filled with sand taken from the Potomac …
-
Treating filtered final effluent from the Cape Flats Wastewater treatment plant with ozone and biologically activated carbon filtration to remove pathogens and organic micropollutants
… the period spanning between 2015–2017. It is an indirect potable reuse scheme that consists in injecting advanced treated final effluent from the Cape Flats MAR WRP into the Cape Flats Aquifer. Within the Cape Flats MAR WRP is the O3/BAC process, which is one of the advanced treatment processes …
-
Assessing Vulnerabilities to the Spread of Pathogens and Antibiotic Resistance in Agricultural and Water Systems Using Culture-, Molecular-, and Metagenomic-based Techniques
… of public health and support recovery and reuse of water and nutrients. The overarching theme of this dissertation is the advancement of next-generation DNA sequencing (NGS) and computational tools for achieving these goals. A suite of relevant fecal and environmental opportunistic …