Testing Biologically Active Filters for Removing Aldehydes Formed During Ozonation

Autor:	Michael J. Sclimenti, Stuart W. Krasner, Bradley M. Coffey
Rok vydání:	1993
Předmět:	Ozone Formaldehyde Anthracite General Chemistry law.invention Filter (aquarium) chemistry.chemical_compound chemistry law medicine Glyoxal Organic chemistry Water treatment Filtration Water Science and Technology Activated carbon medicine.drug
Zdroj:	Journal - American Water Works Association. 85:62-71
ISSN:	0003-150X
Popis:	This pilot-plant study was initiated to evaluate biological filtration for the removal of aldehydes formed during ozonation. An additional objective of this testing was to demonstrate that aldehyde measurements could be used as a surrogate for analysis of assimilable organic carbon (AOC). The use of granular activated carbon (GAC) as an alternative to anthracite coal as the filter medium was also investigated, and it was observed that GAC filters developed biological activity sooner and showed longer-term stability. Although biological activity was established sooner on slow-rate filters, the high-rate filters in time achieved a comparable capability. Data for formaldehyde and glyoxal provide information on removal of readily biodegradable and more recalcitrant ozone by-products, respectively, and demonstrate trends similar to those for the removal of AOC.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d1e5d0d94fe851888ce1dbde3ad5b10 https://doi.org/10.1002/j.1551-8833.1993.tb05987.x Zobrazit plný text záznamu Plný text