Under chlorine-gas disinfection conditions 13 HDBPs (mean total concentration = 1.4 μg L− 1) were detected in the WWTF effluent, whereas under UV disinfection conditions, only one HDBP was detected.
The genotoxicity of drinking water treated with 6 disinfection methods and the effects of disinfection conditions were investigated using the umu-test.
In this study, we systematically investigate solar disinfection of synthetic secondary wastewater, with the effort to decrypt the effects disinfection conditions have on post-irradiation bacterial regrowth in the dark.
We optimized the surface disinfection conditions so that seed germination frequency was not reduced but rhizobacteria no longer could be seen on or isolated from resulting seedlings.
For drinking water disinfection at conditions similar to those used in this study, the US Environmental Protection Agency specifies free chlorine Ct values of 6 and 8 mg-min/L to achieve enteric virus inactivation of 3 and 4 orders of magnitude, respectively (14 ).
Ideally, under carefully controlled conditions, microorganism inactivation rates simulate first-order chemical reaction rates, making it possible to predict the effectiveness of disinfection under specific conditions.
The ability to replicate the same disinfection or sterilization conditions using the same equipment that was involved in the incident is an important advantage of such on-site assessments.
Collect data on pool disinfection and maintenance conditions by pool operators and how this alters the production of DBPs and biologics to better predict exposure for use in future epidemiologic studies and in the short term to determine how to reduce DBPs at indoor swimming pools.
Under the test conditions, air disinfection using wide spectrum thermo-nebulised disinfectant was not effective in reducing the concentration of mesophilic aerobic bacteria, Enterobacteriaceae and M. gallisepticum in the air.
To evaluate the influence of interfering conditions during disinfection, the bactericidal effect of each disinfectant was determined by using the MBC values in physiological saline, soil suspensions, and fecal suspensions.
