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DOI : , Vol.11, No.4, 21 ~ 32, 2003
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| Title |
| Removal of Nitrogen and Phosphorus in Wastewater with Low Concentration Wastewater by Sequencing Batch Reactor of Media and Electrolysis Apparatus |
| 송영일 Song Yeong Il , 진성기 Jin Seong Gi , 김현중 Kim Hyeon Jung , 이성기 Lee Seong Gi |
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| Abstract |
| Behaved an experiment changing most suitable aeration/non-aeration operating condition for nitrogen and phosphorus removal of low concentration wastewater in sequencing batch reactor of media and electrolysis apparatus. Result is as following. Organic matter removal more than 90% was seen in Run A, B. D, E and a little low removal by microbial secession was seen in Run C in media sticking and an experiment reactor that do not attach, and Run F was looked inclination that is fallen by subordinate increase. When it is each 42.3%, 38.1%, attached-growth in T-N and RUN A that is floating growth formula in T-P removal, more High removal was seen by 66.1%. 50.0% in Run D. T-P removal in Run E appeared highest by 54.2%. and operating hours was ON 90/OFF 30 minutes. Most suitable driving condition increases inflow quantity by 2 times deciding by Run D and was expose that when drove, removal of T-N, T-P becomes low by each 48.15, 30.8%. High removal more than 92% was seen from all reactors without correlation with voltage and effective surface area from reactor that attach electricity cracker. Effective surface area appeared that occasion removal that effective surface area is small by 61.3%. 65.5% from Run 3, 4 that High removal was seen, and reduces effective surface area by 1/2, 1/4 as T-N removal increases voltage by each 73.3%, 75.1%. 79.2% from Run 1, 2, 3 that is same and differs tension is low. In case T-P removal is high voltage by each 78.4%, 84.3%, 87.7% from Run 1, 2, 3, High removal was seen, and when reduces effective surface area, was shown removal that is low by each 71.7%. 64.6% from being Run 4. 5. Is thought that such result originates that cohesion adsorption of Fe ion and phosphorus compound is high as effective surface area is big as voltage is high. So that High T-P removal more than 80% is seen in P a load factor 0.9 T-P mg/Fe cm/day about Fe effective surface area, tension appeared that 3V is optimum voltage. |
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| Key Words |
| Low concentration wastewater, Sequencing Batch Reactor, Media, Electrolysis apparatus |
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