Virus Removal by Diatomaceous Earth Filtration

Autor:	Richard S. Engelbrecht, Malay Chaudhuri, Parviz Amirhor
Rok vydání:	1974
Předmět:	chemistry.chemical_classification Chromatography Chemistry viruses Environmental engineering General Medicine Polyelectrolyte Filter (aquarium) Virus removal law.invention law Bench scale Organic matter Turbidity Earth (classical element) Filtration
Zdroj:	Journal of the Environmental Engineering Division. 100:937-953
ISSN:	2690-2435 0090-3914
DOI:	10.1061/jeegav.0000243
Popis:	An investigation was made to determine the removal of bacteria viruses, T4 and MS2, by filtration through uncoated and polyelectrolyte coated diatomaceous earth (DE). Using a bench scale continuous-flow filtration apparatus, it was found that there was little, if any, removal of the viruses by uncoated filter media. However, filtration through diatomaceous earth coated with cationic polyelectrolyte resulted in significant virus removal. In studying the removal of viruses from a natural ground-water source, it was observed that organic matter in the ground water interfered with virus removal. The efficiency of virus removal, using both coated and uncoated DE, was also evaluated with respect to several physical and chemical variables, including pH, filtration rate, type of DE filter medium, and turbidity. All of these variables were found to affect the removal of viruses to some degree.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e24e004500b7d88bfe6fc58bbdec8fdf https://doi.org/10.1061/jeegav.0000243 Zobrazit plný text záznamu