Related Topics: Homeland Security Research

Homeland Security Research Products in the Science Inventory

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Records with

  • Organization = ORD-NHSRC,
  • Keyword = 'Water treatment' OR chlorination OR chloramine OR biofilm OR 'chlorine inactivation'.
Records 1 to 25 of 2548

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2020
Assessment of the Exposure and Effects of Contaminants of Emerging Concern in Drinking and Wastewater Systems and Assays to Evaluate their Removal (PRESENTATION)
The session Assessment of the Exposure and Effects of Contaminants of Emerging Concern in Drinking and Wastewater Systems and Assays to Evaluate their Removal
Cement Kiln and Waste to Energy Incineration of Spent Media (PRESENTATION)
The widespread use of per- and polyfluoroalkyl substances (PFAS) over the last half century has resulted in these compounds being detected in both surface and ground water sources. Anion exchange (AEX) resins are being used extensively by the water industry to remove PFAS from d...
Contaminants, mutagenicity and toxicity in the surface waters of Kyiv, Ukraine (JOURNAL)
Kyiv is Ukraine's capital and largest city. Home to 3 million people, this area has a rich history of agriculture and industry. The Dnieper River is Ukraine's largest river and it passes through the center of Kyiv. Little information on emerging and legacy compounds or their toxi...
Drinking Water Pipeline and Premise Plumbing Decontamination of Bacillus Globigii (PRESENTATION)
This presentation discusses the efficacy of flushing, disinfection, pipe wall scouring, and relining of drinking water pipes and household appliances contaminated with Bacillus globigii, an anthrax surrogate utilizing the full-scale USEPA Water Security Test Bed (WSTB) located ne...
EPA ORD Lead Particulate Research and Related Support (PRESENTATION)
The presentation will be delivered to members of the NSF International’s Drinking Water Treatment Unit (DWTU) Task Group on Higher Lead Influent. The presentation addresses lead in drinking water. NSF International develops standards and certification programs for point of ...
Granular Activated Carbon Adsorption of Carcinogenic Volatile Organic Compounds at Low Influent Concentrations (JOURNAL)
The effectiveness of granular activated carbon (GAC) for carcinogenic volatile organic compounds (cVOCs) has not been evaluated in the low- to sub- microgram per liter range. Rapid small scale column tests (RSSCTs) were employed to determine the GAC performance at empty bed conta...
Still Haven’t Found What You’re Looking For? Integrated Interdisciplinary Analyses May Be the Solution (PRESENTATION)
The US Environmental Protection Agency and US Geological Survey are collaborating to examine the sources, fates, and potential effects of contaminants of emerging concern (CECs) during de facto water reuse, which occurs when treated wastewater is discharged to a source of drinkin...
Study of storm water treatment medias for rapid deployment to storm water collection areas (PRESENTATION)
EPA’s Center for Environmental Solutions and Emergency Response (CESER) conducts research to develop methods and tools for responding to and recovering from contamination incidents, including natural disasters and terrorist attacks. One facet of this research is the study o...
The impact of chlorine and chloramine on the detection and quantification of Legionella pneumophila and Mycobacterium spp. (PRESENTATION)
To investigate the impact of disinfectant on Legionella and NTM in tap water.
Treatment Options for HABs Impacted Waters (PRESENTATION)
This presentation focuses on the removal of cyanobacterial biomass through the conventional treatment process: coagulation, flocculation, sedimentation, and filtration. The presentation also covers the removal of the toxins microcystin, cylindrospermopsin, and anatoxin through ...
US EPA’s Science-Based Approach to Understanding and Managing Drinking Water: Lead and Small System Research (PRESENTATION)
This presentation will cover EPA's research on lead. Specific areas will include mapping, drinking water, treatment, soils, and mitigation issues. It will also briefly cover small system treatment.
US EPA’s Science-Based Approach to Understanding and Managing Environmental Risk from PFAS - Arkansas (PRESENTATION)
This presentation will cover the research being conducted on per- and polyfluoroalkyl substances (PFAS) by EPA's Office of Research and Development. Specific areas to cover are analytical methods, health effects, exposure, ecological toxicity, drinking water treatment, remediati...
2019
A Bench-Scale Procedure for Evaluating Chlorine Bleach Inactivation of Bacillus Spores in Wash Water from a Cleanup of a Site with Biothreat Agents (PUBLISHED REPORT)
This report describes a streamlined bench scale procedure which has been developed for testing the efficacy of chlorine bleach for the inactivation of Bacillus spores in wash water originating from a cleanup of a site contaminated with Bacillus anthracis spores.
A Drinking Water Relevant Water Chemistry Model for the Free Chlorine and Cyanuric Acid System from 5°C to 35°C (JOURNAL)
In July 2001, dichlor (anhydrous sodium dichloroisocyanurate or sodium dichloroisocyanurate dihydrate) and trichlor (trichloroisocyanuric acid) use for the routine treatment of drinking water in the United States (US) was first approved. Their use is equivalent to adding free ch...
Actual vs. Predicted: Lead Scale Observations from the Field (PRESENTATION)
The conventional wisdom of lead solubility has been built over the years by geochemical solubility models, experimental studies, and field sampling of drinking water lead levels using differing protocols. These models predict that lead solubility and release would be controlled b...
Adsorption and degradation in the removal of nonylphenol from water by cells immobilized on biochar (JOURNAL)
To investigate the role of adsorption by biochar and biodegradation by bacteria in the wastewater treatment system of microorganisms immobilized on biochar, Nonylphenol (NP) removal (adsorption + degradation) rates and degradation rates from water by NP degrading bacteria immobil...
Adsorption of metals from mining-impacted water onto biochar from different sources (PRESENTATION)
The runoff from mine tailings in active and abandoned mine sites transport important amounts of dissolved and particulate metals into streams and water bodies, posing a serious risk for ecosystems and endangering drinking water sources. The remediation of these mining-impacted wa...
Assessing the Impact of Wastewater Treatment Plant Effluent on Downstream Drinking Water-Source QualityUsing Cell Culture-Based Metabolomics (PRESENTATION)
Global economic development and an increasing population have dramatically increased demand for water resources. Anthropogenic chemicals released from waste water treatment plants (WWTP), as well as industrial and agricultural operations, often negatively affect the quality of re...
Atmospheric Water Generation Technology: Technical Brief (COMMUNICATION PRODUCT)
In September 2017, EPA’s Office of Research and Development announced a new Cooperative Research and Development Agreement (CRADA) to further advance the science of AWG and assess its potential as a water production and supply solution. Specifically, EPA signed a CRADA with...
Balancing Distribution System Corrosion Control and Treatment for Simultaneous Compliance (PRESENTATION)
This presentation will first cover the basic principles governing corrosion and degradation of common distribution system and premise plumbing materials. Then it will cover water chemistry governing metal resease and treatment options. However, in order to accomplish treatmen...
Benefits of Solar Energy for Small Rural Water Systems in Puerto Rico (PRESENTATION)
EPA conducted a research demonstration project that looked at the efficacy of sustainable solar-powered water delivery and monitoring systems. A solar-powered water pump and water lines were installed to combine two remote water sources for treatment and distribution to one comm...
Biogeochemistry of the treatment of mining-impacted water in mining legacy sites: integrating aqueous phase and solid phase analyses to elucidate efficiencies and mechanisms (PRESENTATION)
There are over half a million abandoned mine sites in the U.S. potentially emanating mining-influenced water, contaminating streams and soils in adjacent areas. These sites present major challenges for their remediation, including: seasonal inaccessibility, rough terrain, lack of...
Bringing Community Ecology to Bear on the Issue of Antimicrobial Resistance (JOURNAL)
Antimicrobial resistance (AMR) is a global concern, pertaining not only to human health but also to the health of industry and the environment. AMR research has traditionally focused on genetic exchange mechanisms and abiotic environmental constraints, leaving important aspects o...
Cell-Based Lipidomics for Assessing Ecological Impacts of Environmental Surface Waters (PRESENTATION)
Chemical contaminants released into environmental surface waters by waste water treatment plants (WWTPs) and industrial and agricultural operations often produce adverse health outcomes in both humans and wildlife. Traditional methods using live animals for environmental monitori...
Chapter 11 - Biosensors for Monitoring Water Pollutants: A Case Study With Arsenic in Groundwater (BOOK CHAPTER)
Population growth and unsustainable agricultural and industrial activities have led to a decrease in water quality and availability, causing ecological risks and challenging drinking water treatment plants to provide clean water. Many techniques are available for monitoring known...
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