Originally designed to disinfect wastewater effluents from small ATU's with peak flows under 9000 gal/day, the 3G UV unit is increasingly being employed as a building block to disinfect larger wastewater flows. This results in:
1. A dramatic cost-saving over open-channel UV disinfection.
2. Increased reliability in using series-parallel arrays.
3.Spare part inventory reduction
4.Flexibility in disinfecting future increases or decreases in wastewater flow rates.
The building block UV disinfection approach was
recently used to treat 100,000 gal/day of wastewater from FEMA workforce housing in Paradise, CA. A November 2018 wildfire had devasted the town, destroying 11,000 homes, and displacing nearly 50,000 people.
Aerobic treatment was provided by four Advanced Enviro-Septic Systems (AES) units each of 25,000 gal/day capacity. Th AES effluents were disinfected by four Salcor 3G units (2seriesx2 parallel), making a total of sixteen UV units. The project was completed in 2019, and bacterial test results have been excellent.