Applications of EVODROP Water as Drinking Water of Highest Quality. Antibacterial and Antiviral Effects of EVOhygiene Colloidal Silver and Cooper Nano Water

2020 ◽  
Vol 8 (1) ◽  
Keyword(s):  
Drinking Water ◽  
Colloidal Silver ◽  
Antiviral Effects

Bacteria removal effectiveness of ceramic pot filters not applied with colloidal silver

2011 ◽  
Vol 11 (6) ◽  
pp. 765-772 ◽  
Author(s):  
K. N. Clark ◽  
A. C. Elmore
Keyword(s):  
Escherichia Coli ◽  
Developing Countries ◽  
Drinking Water ◽  
Coliform Bacteria ◽  
Colloidal Silver ◽  
Safe Drinking Water ◽  
Household Level ◽  
Log Reduction ◽  
Many Sources ◽  
Bacteria Removal

In many developing countries such as Guatemala, access to safe drinking water is very limited. Many sources of water that are available are contaminated with bacteria, particularly Escherichia coli and other coliform bacteria. In order to provide a means of obtaining safe drinking water in developing countries, various methods of treating water at the household level have been developed and implemented throughout the world. One of the more promising treatment mechanisms is the ceramic pot filter, which is typically applied with colloidal silver because of it supposed disinfection purposes. During this study, the bacteria removal effectiveness of 30 filters without colloidal silver was determined by adding water contaminated with Escherichia coli to the filters, and then measuring bacteria concentrations in the filter effluent. The average log reduction values of E. coli and total coliforms determined in this study are 2.1 and 2.3, respectively, and are comparable to other studies of bacteria removal of CPFs. This situation suggests that colloidal silver may indeed not be necessary for the filters to effectively remove bacteria from source water. This study was completed in a period of two weeks, however, while the effect of silver may provide disinfection for several months of use.

scholarly journals Environmentally friendly disinfectant: Production, disinfectant action and efficiency

2006 ◽  
Vol 60 (7-8) ◽  
pp. 180-187 ◽  
Author(s):  
Milan Cekerevac ◽  
Milos Simicic ◽  
Petar Rakin ◽  
Negica Popovic ◽  
Ljiljana Nikolic-Bujanovic ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Drinking Water ◽  
Wide Spectrum ◽  
Environmentally Friendly ◽  
Water Electrolysis ◽  
Electrochemical Process ◽  
Water Disinfection ◽  
Electrochemical Activation ◽  
Colloidal Silver ◽  
Technical Literature

Silver is a known disinfectant from ancient times, and it has been widely used for various purposes: for food and water disinfection, curing of wounds and as a universal antibiotic for a wide spectrum of diseases - until the Second World War and the discovery of penicillin. Until recently, it was assumed that silver, being a heavy metal, was toxic for humans and living beings. However, the newest research provides facts that the usage of silver, even for drinking water disinfection, is benign if it is added in small concentrations (in parts per billion). It has been shown in the newer scientific and technical literature that silver in colloidal form is a powerful (secondary) disinfectant for drinking water, that it can be effectively used for the disinfection of water containers including swimming pools, installations in food industry, medicine, etc. Particularly, it has been shown that colloidal silver combined with hydrogen peroxide shows synergism having strong bactericidal and antiviral effects. The combination can be successfully used as a disinfectant in agriculture, food production and medicine. The original electrochemical process of production, the mechanism of physical-chemical reactions in that process and the mechanism of the antiseptic affect of the environmentally friendly disinfectant, based on the synergism of colloidal silver and hydrogen peroxide and the activity of electrochemically activated water, is shown. The starting solution was anolyte, obtained in electrochemical activation by water electrolysis of a highly diluted solution of K-tartarate in demineralized water (5.5-1CT4 M). The problem of electrolysis of very dilute aqueous solutions in membrane cells was particularly treated. It was shown that the efficiency of the electrolysis depends on the competition between the two processes: the rates of the processes of hydrogen and oxygen generation at the electrodes and the process of diffusion of hydrogen and hydroxyl ions through the cell membrane. Relatively strong disinfectant and sterilization action on standard races of gram-positive and gram-negative bacteria, blast spores and spores, as well as the safety of implementation of an environmentally friendly disinfectant was certified in a relevant institution, the Military Academy of Medicine in Belgrade.

Colloidal silver and silver nanoparticles bioaccessibility in drinking water filters

2016 ◽  
Vol 4 (3) ◽  
pp. 3451-3458 ◽  
Author(s):  
Lilian Rodrigues Rosa ◽  
Roxane Denise Rosa ◽  
Márcia Andreia Mesquita Silva da Veiga
Keyword(s):  
Silver Nanoparticles ◽  
Drinking Water ◽  
Colloidal Silver ◽  
Water Filters

scholarly journals Assessment of Colloidal Silver Impregnated Ceramic Bricks For Small-Scale Drinking Water Treatment Applications

2013 ◽  
Vol 8 (1) ◽  
pp. 18-35
Author(s):  
Daniel M Nover ◽  
Erica R McKenzie ◽  
Geetika Joshi ◽  
William E Fleenor
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Residence Time ◽  
Free Water ◽  
Drinking Water Treatment ◽  
Silver Concentration ◽  
Fecal Coliforms ◽  
Small Scale ◽  
Colloidal Silver ◽  
Safe Drinking Water

Colloidal silver treated ceramic substrates were tested for effectiveness in small-scale, point-of-use (POU) drinking water treatment.  Coated substrates were used to treat harvested rainwater to test their ability to produce safe drinking water, where safety was evaluated based on both coliform and silver concentrations.  The effect of two different residence times was also evaluated.   Although the harvested rainwater had high concentrations of coliforms (>200 CFU/100 mL), no fecal coliforms were detected.  Upon initial deployment, coliform-free water was produced immediately, although silver concentrations exceeded WHO guidelines.  The treatment also produced coliform-free water within 24 hours following addition of a solution of canine feces (leading to an initial spike in coliform and E. coli concentrations) to the tanks. Silver concentration in the treatment tanks generally increased when the tanks were left to stand without water cycling and was noticeably reduced when large volumes were cycled. Over 60 days, silver concentration in tanks with different residence time stayed relatively constant at about 60 ppb.  From days 60 to 76 concentrations in the short residence time tank (residence time = 1.7 days) decreased dramatically.  Results suggest that colloidal silver coated substrates may be a feasible approach to small scale water treatment systems but that ensuring safe drinking water requires careful attention to sizing substrates, cistern residence time, and duration of treatment effectiveness.

Habitat Association of Klebsiella Species

1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley
Keyword(s):  
Drinking Water ◽  
Gastrointestinal Tract ◽  
Surface Waters ◽  
Industrial Effluents ◽  
Opportunistic Pathogen ◽  
Habitat Associations ◽  
Habitat Association ◽  
Klebsiella Species ◽  
Almost All ◽  
Polluted Waters

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).

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