Related Topics: Homeland Security Research

Homeland Security Research Products in the Science Inventory

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Records with

  • Organization = [ORD-NHSRC]
  • Keyword = 'water security' AND 'biological'.
Records 1 to 25 of 195

2021
Functional resilience of activated sludge exposed to Bacillus globigii and bacteriophage MS2
(JOURNAL) [Published : Aug 17, 2021]
This study evaluated the effect of two biocontaminant surrogates on the activity and performance of activated sludge. In the presence of bacteriophage MS2 at 3.2 × 108 PFU/ml, the peak respiration rates varied between 9.1 and 10.5 mg O2/gVSS/hr, generally similar to the rates obs...
2019
Decontamination of Bacillus Spores from Drinking Water Infrastructure with Physical Removal (Pigging) and Assessment of Pipe Relining Technologies
(PUBLISHED REPORT) [Published : Sep 16, 2019]
The objectives of this project were to evaluate the effectiveness of: (1) a physical scouring (pigging) technology for removing Bacillus globigii spores following intentional contamination of the Water Security Test Bed (WSTB). First responders and decision makers managing a wate...
Development of a Rapid Viability Polymerase Chain Reaction Method for Detection of Yersinia pestis in Water
(JOURNAL) [Published : May 13, 2019]
Due to the occurrence of natural plague outbreaks and its historical usage as a biological weapon, Yersinia pestis is considered one of the high-priority biological threat agents. It can remain viable in certain environments including water for more than 100 days. The Rapid Viabi...
Full-Scale Decontamination of Bacillus Spores from Drinking Water Infrastructure
(SUMMARY) [Published : May 22, 2019]
The drinking water distribution system is vulnerable to contamination, which presents challenges to maintaining good water quality and ensuring water availability. Decontamination of drinking water systems, following an intentional contamination incident or a natural disaster, is...
Future of Water Distribution Modeling and Data Analytics Tools
(PUBLISHED REPORT) [Published : Oct 01, 2019]
The U.S. Environmental Protection Agency (EPA) is responsible for helping communities prepare for and recover from disasters that result in threats to public health and the environment. EPA’s National Homeland Security Research Center’s (NHSRC) mission is to focus on the research...
Quantifying hydraulic and water quality uncertainty to inform sampling of drinking water distribution systems
(JOURNAL) [Published : Jan 01, 2019]
Sampling of drinking water distribution systems is performed to satisfy regulatory requirements but also to respond to customer complaints or emergency situations. Water distribution system modeling techniques can be used to plan and inform sampling strategies; however, a high de...
The Use of Hollow Fiber Dialysis Filters Operated in Axial Flow Mode for Recovery of Microorganisms in Large Volume Water Samples with High Loadings of Particulate Matter
(JOURNAL) [Published : Apr 05, 2019]
The objective of this study was to evaluate axial flow hollow fiber ultrafiltration (HFUF) in the recovery of target organisms in large volumes of turbid water that would be similar to water encountered in the cleanup of a biologically contaminated area such as the B. anthracis c...
2018
Decontamination of Bacillus Spores from Drinking Water Infrastructure with Physical Removal (Pigging)
(PUBLISHED REPORT) [Published : Sep 25, 2018]
This report summarizes the results of biological decontamination experiments performed at the WSTB focused on removing Bacillus globigii spores adhered to the inner surface of the 8-inch water pipe. B. globigii spores are a non-pathogenic surrogate for B. anthracis, which is the...
Development of a Rapid Viability-PCR Method for Detection of Francisella tularensis in Water Samples
(PRESENTATION) [Presented : May 10, 2018]
Slide Presentation -Francisella tularensis is a Category One select agent and causes Tularemia infection. It can survive for a long time in water. The RV-PCR method will help rapid detection during an intentional (bioterrorism) or accidental contamination of drinking water system...
Disinfection and flushing of aircraft water systems
(SUMMARY) [Published : Dec 31, 2018]
This project focused on identifying the bacteria that are the potential sources of positive total coliform assays, on locating potential hotspots for bacterial colonization within aircraft plumbing materials, and on investigating the effectiveness of the airline industry’s curren...
Electrolyte Selection and Microbial Toxicity for Electrochemical Oxidative Water Treatment Using a Boron-doped Diamond Anode to Support Site Specific Contamination Incident Response
(JOURNAL) [Published : Apr 06, 2018]
This journal article study addresses such concerns by demonstrating successful boron-doped diamond (BDD) electrochemical advanced oxidation process (AOP) pre-treatment for contaminated waters prior to discharge to wastewater treatment facilities.
Electrophoretic mobility of Legionella pneumophila serogroups 1 to 14
(JOURNAL) [Published : Mar 16, 2018]
Journal Article
Evaluation of and environmentally sustainable UV-assisted water treatment system for removal of Bacillus spores in water
(JOURNAL) [Published : Jun 29, 2018]
In both developing and industrialized nations, a growing number of contaminants are entering water supplies from human activities. In addition, the events of September 11, 2001, in the United States have raised concerns about the potential for intentional contamination of water s...
Exposure Pathways to High-Consequence Pathogens in the Wastewater Collection and Treatment Systems
(PUBLISHED REPORT) [Published : Aug 01, 2018]
Report--Provides information and a screening tool to perform an exposure assessment for emerging pathogens in wastewater systems
The effectiveness of disinfection and flushing procedures to prevent coliform persistence in aircraft water systems
(JOURNAL) [Published : Dec 24, 2018]
Maintaining safe water on board commercial aircraft is critical to the safety of passengers and compliance with regulations. The conclusions from this study can help commercial air carriers deliver safe water by indicating that coliform bacteria are not persistent on aircraft plu...
2017
A Novel Broth Medium for Enhanced Growth of Francisella Tularensis
(JOURNAL) [Published : Feb 23, 2017]
Journal article
Decontamination of Bacillus spores adhered to iron and cement-mortar drinking water infrastructure in a model system using disinfectants
(JOURNAL) [Published : Feb 01, 2017]
Bacillus spores are persistent on common drinking water infrastructure surfaces such as corroded iron and cement-mortar. Due to their resistance to disinfection, inactivation of spores can be used as a benchmark for decontamination of biological agents from drinking water infrast...