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DOI : ,    Vol.9, No.2, 31 ~ 38, 2001
Title
Advanced Treatment of Mixtured Wastewater by Biotower Using Ceramic Media
최정우Jeung Woo Choi,현길수Kil Soo Hyun,김홍구Hong Gu Kim,염국환Gug Hwan Yum
Abstract
In order to remove nitrogen and phosphorus from mixtured wastewater of domestic wastewater, night-soil, and leachate from the waste landfill site, this researches were performed to evaluate a characteristics of the treatment of Biotower using ceramic media of new biological process. The Biotower process consists of anaerobic, aerobic and anoxic zones. The experiment was carried out at S Wastewater Treatment Plant, located at Kyungbuk province. Based on the results of this research, at volumetric loadings of 0.08∼0.62㎏BOD/㎥.d, 0.06∼0.36㎏COD/㎥.d and 0.07∼0.64㎏SS/㎥.d, the percentages of BOD, COD, and SS removal averaged 90%, 80%, and 90%, respectively with all effluent of less than 10㎎/L. total nitrogen(TN) and total phosphorus(TP) removal were 50% with effluent of 7㎎/L and 70% with effluent of 0.6㎎/L, respectively. Influent BOD/TN ratio ranged from 2.82 to 7.38 and BOD/TP ratio from 15.57 to 61.80. TP removal averaged 60% at TN/TP ratio of 7. At linear velocity(LV) 50m/day of Biotower, the removal rates averaged more than 85% for BOD and SS, and 70% for COD. TN and TP removals at more than LV 40m/day averaged 50% and 65%, respectively.
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