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Assessment of ultraviolet light disinfection efficiency of advanced wastewater treatment plant effluent
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 1995 |
| Abstract | Pilot-scale operation o f a 3-bank UV disinfection system for filter effluent from the Clark County Advanced Wastewater Treatment Plant has shown >4-log removal of seeded MS-2 coliphage at UV dosages o f 80-100 milliwatt-seconds per square centimeter (mW-s/cm2), and consistent removal o f fecal and total coliforms to less than 2.2 MPN/100 mL at dosages in the vicinity o f 50-80 mW-s/cm2 UV transmittance varied from 40% to 70% over the monitoring period and was strongly correlated with turbidity. No diurnal variations in effluent quality were detected during intensive sampling. Effluent quality was most strongly affected by storm events that change filter operation conditions. Rapid biological fouling occurred on the off-line banks. Inorganic fouling o f on-line banks was minimal. Assuming a worst case UV transmittance (%) and required treatment dosage (mW-s/cm2), treatment capacity of this 30-foot long, 6-lamp system was 0.10 million gallons per day ACKNOWLEDGMENTS No undertaking o f this magnitude can be accomplished alone. Many individuals participated and contributed to this thesis. It is with grateful appreciation that I acknowledge the contribution o f Dr. David E. James, who has been my mentor, teacher, advisor, and friend. Thanks go to Dr. Peny S. Amy, Dr. James Cardie, and Dr. Mohamed Kaseko for their comments and reviews o f the manuscript. Special appreciation is extended to Dr. Peny S. Amy, Dr. Pat Stuebing, Theodore Lagadinos, Abie Igbinovia and the University o f Nevada, Las Vegas Microbiology Laboratory staff for their participation in this project. Thanks go to Clark County Sanitation District operation, maintenance, and Laboratory staff. Special thanks go to Stan Shumaker, Robin Bain, David Paulsen, Don Schoengold, Wanda Flohr, Shawn Wilcox, Billy Clark, and Jim Greene for their support and cooperation. Thanks also go to Fred Soroushian, Dr. Jamal Awad, Ed Goscicki, Rod Brauer of CH2M HILL Inc., and Dr. Elliot Whitby of Elsag Bailey Fischer & Porter for their technical direction and support. Finally, hearty thanks to my parents, my sister Kim, my brother Hung for their financial support and encouragement; my special friend Shannon for her moral support and encouragement that made this undertaking possible. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://digitalscholarship.unlv.edu/cgi/viewcontent.cgi?article=1559&context=rtds |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
