A pilot demonstration was installed at a state-run energy facility with feed from a single pass FGD system. Upon startup, the system explored the maximum biological operating temperature of 105°F.
The system experimented with a wide range of pretreatment operational conditions to demonstrate the hardiness of the biological approach. The pilot produced results compliant with the EPA ELGs, despite varying influent conditions. The ultrafiltration unit demonstrated effective selenium polishing ability during this pilot as well, with a maximum additional removal up to 30 parts per billion.