caa a22 4500 469101911 CHVBK 20180323133046.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00189638 doi (NATIONALLICENCE)springer-10.1007/BF00189638 Simultaneous removal of phosphorus and nitrogen in sequencing batch reactor [Elektronische Daten] [Hang Shin, Hang Jun, Hung Park] In this research, investigations were made on material transfer mechanisms and optimum operation mode for sequencing batch reactor system removing phosphorus and nitrogen simultaneously. Phosphorus release characteristics were expressed in the Monod equation, in which the reaction rate was replaced with specific phosphorus release (SPR) rate. The rate of SPR was increased during the first 80 days, but increased sharply to reach 0.003 hr-1 afterwards. Phosphorus removal efficiencies were about 60% in the first 80 days, 75% after 80 days, and above 95% after 120 days. After 120 days, phosphorus concentration in effluent was below 0.5 mgl-1 when 8 mgl-1 was in the influent and the released phosphorus after 3-hour-anaerobic period was 60 mgl-1. In the proposed optimum operation strategy (2-hour anaerobic react, 3-hour aerobic react, 4-hour anoxic react, and 3-hour settle and draw), phosphorus reappeared if the oxidized nitrogen was completely denitrified. In order to prevent this undesirable phosphorus release, anoxic period should be reduced to the extent of which the minimal concentration of the oxidized nitrogen existed. Phosphorus removal efficiency was stable under shock load as 5 times high as normal phosphorus concentration. Kluwer Academic Publishers, 1992 phosphorus release nationallicence phosphorus uptake nationallicence specific phosphorus release rate nationallicence sequencing batch reactor nationallicence biological nutrients removal nationallicence dP/dt : Phosphorus release rate (mgl-1 hr-1) nationallicence K : Phosphorus release yield constant (mg P mg TOC-1) nationallicence dS/dt : Substrate utilization rate (mgl-1 hr-1) nationallicence X : Mixed liquor suspended solid (MLSS, mgl-1) nationallicence S : Soluble TOC (mgl-1) nationallicence k-qmax (Ymax)-1 : Maximum substrate utilization rate nationallicence Y : Yield coefficient (mg mg-1) nationallicence Ks : Saturation constant (mgl-1) nationallicence Pmax : kK-Maximum phosphorus release rate (hr-1) nationallicence Prel : Total released phosphorus (mgl-1) nationallicence Po : Phosphorus in influent (mgl-1) nationallicence Pe : phosphorus in effluent (mgl-1) nationallicence t : Anaerobic period (hr) nationallicence Shin Hang Department of Civil Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu, Taejon, 305-701, Seoul, Korea aut Jun Hang Department of Civil Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu, Taejon, 305-701, Seoul, Korea aut Park Hung Environmental Management Corporation, 1024-4 Taechi-Dong, Kangnam-Ku, 135-280, Seoul, Korea aut Biodegradation Kluwer Academic Publishers 3/1(1992-03-01), 105-111 0923-9820 3:1<105 1992 3 10532 https://doi.org/10.1007/BF00189638 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00189638 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shin Hang Department of Civil Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu, Taejon, 305-701, Seoul, Korea aut NATIONALLICENCE 700 1- Jun Hang Department of Civil Engineering, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong Yusong-gu, Taejon, 305-701, Seoul, Korea aut NATIONALLICENCE 700 1- Park Hung Environmental Management Corporation, 1024-4 Taechi-Dong, Kangnam-Ku, 135-280, Seoul, Korea aut NATIONALLICENCE 773 0- Biodegradation Kluwer Academic Publishers 3/1(1992-03-01), 105-111 0923-9820 3:1<105 1992 3 10532 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer