Nitrogen and phosphorus removal in a combined activated sludge - RBC process

Chaio Fuei Ouyang, Shun Hsing Chuang, Jau Lang Su

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A hybrid biological nutrient removal process has been developed successfully at Taiwan National Central University in recent years. The process combines activated sludge with fully and partially submerged rotating biological contactors in anaerobic, anoxic and aerobic reactors to improve nitrogen, phosphorus and organic matter removal of municipal wastewater. The characteristics of the process have been investigated deeply in a series studies and are reported here. Moreover, the activity of sludge, the mechanisms of nitrate inhibition in phosphorus removal, the relationship between polyhydroxylalkanoates (PHA) accumulation/utilization and phosphorus release/uptake and the biomass distribution of various bacteria in this process are also described.

Original languageEnglish
Pages (from-to)181-204
Number of pages24
JournalProceedings of the National Science Council, Republic of China, Part A: Physical Science and Engineering
Issue number2
StatePublished - Mar 1999


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