Journal article
Inactivation of Giardia Cysts by Ozone after Residual Disappearance
Journal of environmental engineering (New York, N.Y.), v 148(2)
01 Feb 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
AbstractKinetic models for inactivation of microorganisms by chemical disinfectants have described the instantaneous rate of kill as a function of the instantaneous residual. Laboratory batch experiments were conducted exposing cysts of Giardia muris to low doses of dissolved ozone in water from Lake Audubon, ND, and Vancouver, BC. Viability was assessed by excystation. Substantial inactivation was found to continue following disappearance of ozone residual, indicating that the fundamental postulate of modeling chemical disinfection may not be universally applicable. The mechanism for this effect, the extent of applicability, and the alternative modeling frameworks needs further study. However, this finding, if generalizable, has significance particularly in treatment of wastewater for reuse, and may provide a pathway for achieving greater log removals while keeping disinfectant byproducts low.
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Details
- Title
- Inactivation of Giardia Cysts by Ozone after Residual Disappearance
- Creators
- Charles N Haas - Drexel UniversityJoseph Jacangelo - Vice President, Stantec, 1101 14th St. NW, Suite 1200, Washington, DC 20005-5637.
- Publication Details
- Journal of environmental engineering (New York, N.Y.), v 148(2)
- Publisher
- American Society of Civil Engineers
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000730390200001
- Scopus ID
- 2-s2.0-85121653676
- Other Identifier
- 991019168808204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Civil
- Engineering, Environmental
- Environmental Sciences