Related Topics: Water Research

Water Research Products in the Science Inventory

Records 1 to 25 of 182

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Reconnaissance of Mixed Organic and Inorganic Chemicals in Private and Public Supply Tapwaters at Selected Residential and Workplace Sites in the United States (JOURNAL)
In a pilot study, tapwater (TW) from 13 home (7 municipal sources and 6 private wells) and 12 workplace locations in 11 US states was assessed for 482 organics and 19 inorganics. Only uranium (61.9 µg L-1, private well) exceeded a Safe Drinking Water maximum contaminant le...
Life cycle assessment of a rainwater harvesting system compared with an AC condensate harvesting system (JOURNAL)
This study presents a life cycle assessment (LCA) of a rainwater harvesting (RWH) system and an air-conditioning condensate harvesting (ACH) system for non-potable water reuse. U.S. commercial buildings were reviewed to design rooftop RWH and ACH systems for one- to multi-story b...
Life Cycle Assessment and Cost Analysis of Mixed Wastewater and Graywater Distributed Treatment for Water Reuse in San Francisco (PRESENTATION)
Communities such as San Francisco, CA are promoting decentralized wastewater treatment coupled with on-site, non-potable reuse (NPR) as a strategy for alleviating water scarcity. This research uses life cycle assessment (LCA) and life cycle cost analysis (LCCA) to evaluate severa...
EPA Tools and Resources Webinar: ?Non-Potable Water Reuse (PRESENTATION)
We have an opportunity before us. We can think about our new buildings can as water resources. By designing our buildings to collect and treat water generated on-site, can be and reused for flushing our toilets and irrigating our landscaping. Several water sources are generate...
Using HVAC Condensate as a Reuse Option for Water Conservation (8th ASM Conference) (PRESENTATION)
HVAC (heating, ventilation, and air conditioning) condensate can be a beneficial source of water that is currently going down the drain. As warm air is cooled by an air conditioning system, humidity in the air forms condensation that is essentially distilled water. Typically, th...
Modeling and Mining the Microbiome to Help Catalyze Adoption of Onsite Non-Potable Water Reuse (PRESENTATION)
There is an increasing demand for sufficient quantities of water in many parts of the United States. Increasing pressures on water resources has led to greater water scarcity and a demand to finding alternative water sources. In response, many communities have initiated or are de...
Overview of Resource Recovery-based Sustainable Water Systems:?Life Cycle Assessment Updates from US EPA’s Safe and Sustainable Water Resources Research Program (PRESENTATION)
The United States Environmental Protection Agency’s Safe and Sustainable Water Resources (SSWR) Program is building integrated sustainability assessments to compare the tradeoffs between current and future municipal water and wastewater services. This presentation provides ...
Floodplain Waste Water Re-Use and Indirect Discharge (COMMUNICATION PRODUCT)
This whitepaper is informational for those interested research and activities related to the re-use and practice of discharging treated effluent into floodplain river systems. It describes what indirect discharge is, how the practice is distributed in the U.S. and what current re...
Finding New Water: Supporting New Guidance for Water Reuse (PRESENTATION)
To be presented at Region 6 State and Tribal Environmental Leaders' Visit, 8/14/18.
Onsite Non-Potable (Non-Drinking) Water Reuse Research (COMMUNICATION PRODUCT)
There is an increasing demand for sufficient quantities of water in many parts of the United States. Increasing pressures on water resources has led to greater water scarcity and a demand to finding alternative water sources. In response, many communities have initiated or are de...
Human Health Impact of Cross-Connections in Non-Potable Reuse Systems (JOURNAL)
We used quantitative microbial risk assessment (QMRA) to estimate the microbial risks from two contamination pathways in onsite non-potable water systems (ONWS): contamination of potable water by (treated) reclaimed, non-potable water and contamination of reclaimed, non-potable w...
Effect of Nutrient Removal and Resource Recovery on Life Cycle Cost and Environmental Impacts of a Small Scale Water Resource Recovery Facility (JOURNAL)
In the efforts of limiting the effluent impacts of eutrophication in receiving waterbodies, a small community wastewater treatment has implemented the upgrade of the conventional activated sludge treatment process with enhanced primary settling, Modified Ludzack-Ettinger secondar...
Constructed wetlands for greywater recycle and reuse - Atlanta (PRESENTATION)
Greywater reuse has been suggested as a way to diversify local water supply portfolios while at the same time lessening the burden on existing environments and infrastructure. Constructed wetlands are often suggested as an economically and energetically efficient treatment techno...
Contaminants of Emerging Concern During De Facto Water Reuse (ISES-ISEE 2018) (PRESENTATION)
The drinking water and wastewater cycles are integrally linked. Chemicals that are present in household wastewater may be sufficiently mobile and recalcitrant to pass through on-site or municipal wastewater treatment and survive natural environmental removal processes. Such per...
The Emergence of Onsite Reuse (PRESENTATION)
This free annual workshop, held in partnership with the Association of State Drinking Water Administrators (ASDWA), will provide in-depth information and training on various solutions and strategies for handling small drinking water system challenges. The workshop is primarily de...
Life Cycle Assessment and Cost Analysis of Membrane Bioreactor Systems: Influence of Scale, Population Density, Climate, and Methane Recovery - Seattle (PRESENTATION)
This study calculated the cumulative energy and greenhouse gas (GHG) life cycle and cost profiles of transitional aerobic membrane bioreactors (AeMBR) and anaerobic MBRs (AnMBR). Different scenarios were investigated for different scale systems serving various population densiti...
Water Quality From Source Through Treatment—Joint research by the USGS and the USEPA (PRESENTATION)
Contaminants of emerging concern (CECs) is a term which encompasses a vast array of chemicals such as pharmaceuticals, perfluoroalkyl substances, and surfactants, as well as microorganisms such as Mycobacteria and Legionella. These contaminants end up entering the water cycle, e...
Life Cycle Assessment and Cost Analysis of Membrane Bioreactor Systems: Influence of Scale, Population Density, Climate, and Methane Recovery (PRESENTATION)
Within the context of an urban case study, a life cycle assessment (LCA) and cost analysis were constructed to understand impacts associated with scenarios for mixed wastewater and greywater recycling. The technology of focus was an aerobic membrane bioreactor (MBR) of varying sc...
Greener and size-specific synthesis of stable Fe-Cu oxides as earth-abundant adsorbents for malachite green (JOURNAL)
A greener and sustainable pathway to the assembly of Fe, Cu -based adsorbent is described using Virginia creeper (Parthenocissus quinquefolia) leaf extracts in presence of oxalic acid which avoids the use of toxic chemicals. Characterization of the synthesized mixed Fe, Cu oxides...
Iron and Iron Oxide Nanoparticles Synthesized Using Green Tea Extract: Differences in Ecotoxicological Profile and Ability to Degrade Malachite Green (JOURNAL)
In recent years, iron-based nanoparticles (FeNPs) have been successfully used in environmental remediation and water treatment. This study examined ecotoxicity of two FeNPs produced by green tea extract (smGT, GTFe) and their ability to degrade malachite green (MG). Their physic...
Overview of US EPA Safe and Sustainable Water Resources Project (PRESENTATION)
The overview of the US EPA's National Research program regarding the system approaches to assess different transformative fit-for-purpose and resource recovery-based water systems.
Cumulative assessment of steroid receptor mediated activity of contaminants in water samples using in vitro bioassays. (PRESENTATION)
Cell-based assays could serve as a useful tool in the regulatory screening toolbox due to their high sensitivity and the ability to assess complex mixtures in which unknown compounds may be present. We have completed 3 major projects in collaboration with USGS: 1) Chemical Mixtur...
A Review of Polymeric Membranes and Processes for Potable Water Reuse (JOURNAL)
Journal Article
Comparison of emerging contaminants in receiving waters downstream of a conventional wastewater treatment plant and a forest-water reuse system (JOURNAL)
Forest-water reuse (FWR) systems treat municipal, industrial, and agricultural wastewaters via land application to forest soils. Previous studies have shown that both large-scale conventional wastewater treatment plants (WWTPs) and FWR systems do not completely remove many contam...
Microbial Risk Assessment of Air Conditioning Condensate Reuse (PRESENTATION)
Air conditioning condensate can provide a substantial water source for building-scale collection and non-potable use. Although produced water is anticipated to be of generally high quality, the potential for microbial contamination by biofilm-associated opportunistic pathogens t...
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