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- Zheng, Zheng, et al. Show all 6 Authors
- Bioprocess and biosystems engineering 2019 v.42 no.2 pp. 199-212
- ammonia; biofilm; carbon nitrogen ratio; chemical oxygen demand; computer software; denitrification; dynamic models; filtration; nitrate nitrogen; nitrates; nitrites; quartz; sand; simulation models; total nitrogen
- ... A pilot-scale deep bed denitrification filter using quartz sand as the filter media was operated under filtration velocity of 5.23 m/h. Nitrate, nitrite, ammonia, and total nitrogen removal rates were relatively high at influent C/N ratios of 4:1 and 5:1. A model was developed using software to simulate the processes operating in the filter and improve the related parameters in the actual operatio ...