Automated 3D detection of Giardia lamblia cysts as an assessment of potential drinking-water resources using DHM with partially coherent source

2011 ◽  
Author(s):  
Ahmed El Mallahi ◽  
Christophe Minetti ◽  
Catherine Yourassowsky ◽  
Frank Dubois ◽  
Aurélie Detavernier ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Giardia Lamblia ◽  
Partially Coherent ◽  
Drinking Water Resources ◽  
Coherent Source ◽  
Partially Coherent Source

scholarly journals The Characterization of Significant Direct Threats to Source Watersheds: a Risk-Based Approach

2021 ◽  
Author(s):  
Alicia Kelly
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Giardia Lamblia ◽  
Water Source ◽  
Scientific Data ◽  
Drinking Water Source ◽  
Water Protection ◽  
Quantitative Characterization ◽  
Drinking Water Resources

In 2004, the Ontario Ministry of the Environment proposed the 'Drinking water source protection act' which stipulated that, in the development of water protection plans, significant direct threats to source watersheds are to be identified. Examination of the major risk factors threatening water resources proved there are insufficient scientific data available to regulators to accomplish this task. Research showed E.coli O157:H7, Salmonella, Giardia lamblia, and Cryptosporidium parvum, and the sources of these pathogens in the environment are, qualitatively, significant threats to water resources. However, a quantitative characterization of significance depends of the failure probabilities of pathogen sources. Using the Ontario Spills Action Centre data, the occurrence of failure was found to have a high non-zero probability. However, considerable uncertainties revealed in these data suggest that a better understanding of failure is critical to accurately characterize significant threats to drinking water resources.

scholarly journals The Characterization of Significant Direct Threats to Source Watersheds: a Risk-Based Approach

2021 ◽  
Author(s):  
Alicia Kelly
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Giardia Lamblia ◽  
Water Source ◽  
Scientific Data ◽  
Drinking Water Source ◽  
Water Protection ◽  
Quantitative Characterization ◽  
Drinking Water Resources

In 2004, the Ontario Ministry of the Environment proposed the 'Drinking water source protection act' which stipulated that, in the development of water protection plans, significant direct threats to source watersheds are to be identified. Examination of the major risk factors threatening water resources proved there are insufficient scientific data available to regulators to accomplish this task. Research showed E.coli O157:H7, Salmonella, Giardia lamblia, and Cryptosporidium parvum, and the sources of these pathogens in the environment are, qualitatively, significant threats to water resources. However, a quantitative characterization of significance depends of the failure probabilities of pathogen sources. Using the Ontario Spills Action Centre data, the occurrence of failure was found to have a high non-zero probability. However, considerable uncertainties revealed in these data suggest that a better understanding of failure is critical to accurately characterize significant threats to drinking water resources.

scholarly journals Technologies Developing in Heavy Metals’ Removal from Water

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 860
Author(s):  
Konstantinos Simeonidis ◽  
Manassis Mitrakas
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Resources ◽  
Human Health ◽  
Urban Wastewater ◽  
Heavy Metals Removal ◽  
Metals Removal ◽  
Drinking Water Resources

Elevated concentrations of heavy metals in drinking water resources and industrial or urban wastewater pose a serious threat to human health and the equilibrium of ecosystems [...]

scholarly journals Evaluation of Human Enteric Viruses in Surface Water and Drinking Water Resources in Southern Ghana

2011 ◽  
Vol 84 (1) ◽  
pp. 20-29 ◽  
Author(s):  
Kristen E. Gibson ◽  
Yayi Guo ◽  
James T. Schissler ◽  
Melissa C. Opryszko ◽  
Kellogg J. Schwab
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Water Resources ◽  
Enteric Viruses ◽  
Drinking Water Resources ◽  
Human Enteric Viruses ◽  
Southern Ghana

Prospective environmental and economic assessment for biotreatment of micropollutants in drinking water resources in Denmark

2015 ◽  
Vol 15 (6) ◽  
pp. 1405-1413 ◽  
Author(s):  
Ivan Muñoz ◽  
Erik de Vries ◽  
Janneke Wittebol ◽  
Jens Aamand
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Economic Assessment ◽  
Pilot Scale ◽  
Impact Categories ◽  
Financial Cost ◽  
Sand Filters ◽  
Immobilized Bacteria ◽  
Drinking Water Resources ◽  
Scale Data

A prospective environmental life cycle assessment (LCA) and financial cost assessment is performed to the application of bioaugmentation to sand filters in Danish waterworks, to remove 2,6-dichlorobenzamide (BAM) from drinking water resources. Based on pilot-scale and laboratory-scale data, we compare bioaugmentation to current alternative strategies, namely granular activated carbon (GAC) adsorption, and well re-location. Both assessments identified well re-location as the least preferred option, however, this result is very sensitive to the distance from the waterworks to the new well. When bioaugmentation is compared to GAC, the former has a lower impact in 13 impact categories, but if immobilized bacteria are used, the impacts are higher than for GAC in all impact categories. On the other hand, from a cost perspective bioaugmentation appears to be preferable to GAC only if immobilized bacteria are used.

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