Case Study
MBR System Designed To Accommodate Variable Flows Between 0.3 And 3.6 MGD
Anticipating growth, the town of Kuna in an agricultural area of southwest Idaho decided to build a new wastewater treatment plant (WWTP) designed for enhanced biological nutrient removal. Discharges to the Lower Boise River system contain phosphorus, which ultimately impairs downstream water quality in the Snake River. Total phosphorus (TP) concentrations in Indian Creek, a Boise River tributary that included the WWTP's outfall, are more than 0.07 mg/L, so any technology Kuna installed would have to meet that limit. Other effluent requirements included a 5-day biochemical oxygen demand (BOD5), total suspended solids (TSS), and ammonia.
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