Abstract
Wastewater reuse has been mandated in both the states of Arizona and Florida, U.S.A. In Arizona, standards have been set for enteric virus and Giardia levels to maintain a specified effluent quality depending on the reuse, while in Florida, specified treatment control has been implemented. Data on virus levels in treated wastewaters have been generated in both states. Average virus levels ranged from 13-130 pfu/100L after secondary treatment while with the addition of filtration, levels were reduced to averages between 0.13 to 1.25 pfu/100L. Giardia cyst levels also dropped by 100 fold after filtration averaging 0.32/40L. Using a probability of infection model, risk of infection from 100 ml accidental ingestion ranged from approximately 2 x 10-3 to 2 x 10-4 for the levels of viruses and protozoa found in chlorinated secondary effluent and the risk was reduced to 2 x 10-4 to 2 x 10-6 with filtration and disinfection following activated sludge.
| Original language | English (US) |
|---|---|
| Title of host publication | Water Science and Technology |
| Publisher | IWA Publishing |
| Pages | 2091-2098 |
| Number of pages | 8 |
| Volume | 23 |
| Edition | 10-12 |
| ISBN (Print) | 0080407749, 9780080407746 |
| DOIs | |
| State | Published - 1991 |
| Externally published | Yes |
| Event | Proceedings of the 15th Biennial Conference of the International Association on Water Pollution Research and Control - Kyoto, Jpn Duration: Jul 28 1990 → Aug 3 1990 |
Other
| Other | Proceedings of the 15th Biennial Conference of the International Association on Water Pollution Research and Control |
|---|---|
| City | Kyoto, Jpn |
| Period | 7/28/90 → 8/3/90 |
ASJC Scopus subject areas
- Environmental Engineering
- Water Science and Technology