E3.04 Vatankhah 2017 ReNUWIt Annual Meeting Poster

<a href="https://embed.stanford.edu/iframe/?url=https%3A%2F%2Fpurl.stanford.edu%2Frx803dv8472" class="su-underline">Show Content</a>

Abstract/Contents

Abstract: As a widely applied technology in water and wastewater treatment, ozonation has gained attention as an enhanced water reuse technology to improve the effluent quality by removing various organic contaminants (micropollutants). Catalytic ozonation using granular activated carbon (GAC) introduces a promising technology to effectively destroy micropollutants that are refractory. Compared to traditional non-catalytic ozonation, the main advantages of this catalytic process are better ozone utilization, improved contaminant removal efficiency, and increased organic matter mineralization. In presence of activated carbon, the ozone decomposition factor (KD) increases and based on the type of GAC involved in ozonation, the ratio of the concentration of OH• radicals and ozone, also known as R value CT ([OH•/[O ]) can increases by a factor 3-5. In this study, limited dissolved 3 organic carbon (DOC) removal (<5%) was observed in the conventional ozonation of membrane bioreactor (MBR) effluent indicating that oxidation of the effluent matrix leads to the formation of transformation products rather than mineralization while catalyzed ozonation by GAC showed a DOC removal up to 40%.

Type of resource	other
Date created	May 2017

Author	Vatankhah, Hooman
Author	Bellona, Christopher

Subject	Re-inventing the Nation’s Urban Water Infrastructure
Subject	ReNUWIt
Subject	E3.04
Subject	Efficient Engineered Systems
Subject	Direct potable reuse
Subject	Golden
Subject	Colorado
Subject	adsorption
Subject	advanced oxidation
Subject	biodegradation
Subject	catalyst
Subject	cell cytotoxicity
Subject	decomposition
Subject	drinking water
Subject	endocrine disruptor
Subject	membrane fouling
Subject	micropollutants
Subject	nanofiltration
Subject	natural organic matter
Subject	ndma
Subject	organic matter
Subject	ozonation
Subject	potable reuse
Subject	reverse osmosis membranes
Subject	secondary effluent
Subject	surface water
Subject	transformation products
Subject	treatment trains
Subject	urban water
Subject	wastewater

Related Publication	Vatankhah, H., Murray, C. C., Brannum, J. W., Vanneste, J., & Bellona, C. (2018). Effect of pre-ozonation on nanofiltration membrane fouling during water reuse applications. Separation and Purification Technology, 205, 203-211. http://doi.org/10.1016/j.seppur.2018.03.052
Related Publication	Vatankhah, H., Riley, S. M., Murray, C., Quinones, O., Steirer, K. X., Dickenson, E. R. V., & Bellona, C. (2019). Simultaneous ozone and granular activated carbon for advanced treatment of micropollutants in municipal wastewater effluent. Chemosphere, 234, 845-854. http://doi.org/10.1016/j.chemosphere.2019.06.082
Related Publication	Vatankhah, H., Szczuka, A., Mitch, W. A., Almaraz, N., Brannum, J., & Bellona, C. (2019). Evaluation of Enhanced Ozone-Biologically Active Filtration Treatment for the Removal of 1,4-Dioxane and Disinfection Byproduct Precursors from Wastewater Effluent. Environmental Science & Technology, 53(5), 2720-2730.http://doi.org/10.1021/acs.est.8b06897
Location	https://purl.stanford.edu/rx803dv8472

Use and reproduction: User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
License: This work is licensed under an Open Data Commons Attribution License v1.0.

Preferred Citation: Vatankhah, H., and Bellona, C. (2017). E3.04 Vatankhah 2017 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/rx803dv8472

Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt)

Loading usage metrics...