Solar Water Disinfection (SODIS) is a simple process used in developing countries to improve the quality of bacteria-contaminated drinking water. A previous study found that phthalate, an aromatic compound released by polyethylene terephthalate (PET) bottles upon UV-A irradiation, enhanced the germicidal activity of SODIS. In the current study, two possible mechanisms behind this observation we...

Effective disinfection of the hospital environment is a key component in the prevention of healthcareassociated infections. The objective of this project was to evaluate the effectiveness of an ultraviolet germicidal device in reducing the concentrations of culturable bacteria on indoor surfaces. The ultraviolet germicidal device was installed and operated in four experimental trials conducted ...

Germicidal ultraviolet radiation (GUV) provides a means of dramatically reducing airborne spread microorganisms in residential and workspace environments. Regarding design use GUV, both efficacy safety data have accumulated over several decades, with substantial increase attention during the current COVID-19 pandemic. Considerations for skin eye previously resulted guidance on exposures institu...

In the August number of the Indian Medical Gazette, Captain Windsor experimenting with iodine, found that it was lethal to cholera, typhoid and coli organisms in one minute, when present in the strength of 1 part in 260,000, and lethal to anthrax and Hay bacilli spores in the same time, but in the dilution of 1 part in 8,000. These experiments coincided with mine, as also did his chlorine value...

The current technological status of ultraviolet light emitting diodes (UV-LEDs) has reached a point where small-scale ultraviolet (UV) water disinfection applications, that is, for greywater reuse appear increasingly promising. This study compares the germicidal and economical aspects of UV-LEDs with traditional UV. Pure cultures and environmental greywater samples were exposed to different rad...

Surface disinfection of fertilized fish eggs is widely used in aquaculture to reduce extraovum pathogens that may be released from brood fish during spawning, and this is routinely used in zebrafish Danio rerio research laboratories. Most laboratories use approximately 25 to 50 ppm unbuffered chlorine solution for 5 to 10 min. Treatment of embryos with chlorine has significant germicidal effect...

Six different kinds of non-metallic or organic disinfectants were obtained in this research study including “Neutral Electrolyzed Water”, “M22” organic disinfectant solution, Superoxy Food Wash disinfectant, Hydrogen Peroxide, Clorox Germicidal Bleach and Clidox-S. The effectiveness of these disinfectants was studied against various subtypes of avian influenza virus (AIV). The virus-disinfectan...