무산소/호기생물막반응조와 MF막의 연속처리에 의한 퍼클로레이트와 질산염 제거
This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF) membrane system can be used as a direct treatment for the removal of perchlorate and nitrate in groundwater. The biofilm process consisted of an anoxic first stage to remove perchl...
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Published in | Daehan hwan'gyeong gonghag hoeji Vol. 35; no. 5; pp. 301 - 306 |
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Main Author | |
Format | Journal Article |
Language | Korean |
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대한환경공학회
2013
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Online Access | Get full text |
ISSN | 1225-5025 2383-7810 |
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Abstract | This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF) membrane system can be used as a direct treatment for the removal of perchlorate and nitrate in groundwater. The biofilm process consisted of an anoxic first stage to remove perchlorate and nitrate and aerobic second stage to remove remaining acetate used as a carbon source for dissimilatory reduction of perchlorate and nitrate. In final stage, hollow fiber MF membrane was used to remove turbidity. In this research, perchlorate was reduced from the influent concentration of 102 ${\mu}/L$ to below the IC detection level (5 ${\mu}/L$) and nitrate was reduced from 61.8 mg/L (14 mg/L $NO_3$-N) to 4.4 mg/L (1 mg/L $NO_3$-N). Acetate used as a carbon source was consumed from 179 mg/L $CH_3COO-$ to 117 and 11 mg/L $CH_3COO^-$ in effluents from anoxic and aerobic biofilm reactors, respectively. Turbidity was reduced from 3.0 NTU to 1.5, 0.3, and 0.2 NTU in effluents from anoxic/aerobic biofilm reactors and MF membrane, respectively. It is expected that the sequential anoxic/aerobic biofilm reactors and MF membrane system can efficiently remove perchlorate and nitrate in surface water or groundwater. 본 연구는 퍼클로레이트($ClO_4{^-}$)와 질산염($NO_3{^-}$)의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막에 의한 연속처리의 적용 가능성을 조사하였다. 생물막 처리공정은 첫 번째 단계로 퍼클로레이트와 질산염의 제거를 위해 무산소생물막반응조를 이용하였고 두 번째 단계로 이화적 퍼클로레이트와 질산염 환원을 위해 사용된 잔류탄소원의 제거를 위해 호기생물막반응조가 도입되었다. 그리고 마지막 단계로 탁도제거를 위해 중공사형 MF막을 적용하였다. 본 연구에서 102 ${\mu}g/L$ $ClO_4{^-}$와 61.8 mg/L $NO_3{^-}$ (14 mg/L $NO_3$-N)가 유입수로 주입되어 퍼클로레이트는 IC 검출농도 이하(5 ${\mu}g/L$ $ClO_4{^-}$)로 제거되었으며 질산염은 최종 처리수의 농도가 4.4 mg/L $NO_3{^-}$ (1 mg/L $NO_3$-N)로 제거되었다. 탄소원으로 사용된 과잉의 179 mg/L 유입 $CH_3COO^-$는 무산소생물막반응조의 유출수에서 117 mg/L, 호기생물막반응조의 유출수에서 11 mg/L로 감소하였다. 3 NTU의 유입 탁도는 무산소/호기생물막반응조의 유출수에서 1.5와 0.3 NTU였으며 최종 MF막의 유출수에서 0.2 NTU였다. 이 결과는 지표수와 지하수에 포함된 저농도 퍼클로레이트와 질산염 오염의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막의 연속처리가 적용될 수 있음을 의미하는 것으로 사료된다. |
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AbstractList | 본 연구는 퍼클로레이트(ClO4-)와 질산염(NO3-)의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막에 의한연속처리의 적용 가능성을 조사하였다. 생물막 처리공정은 첫 번째 단계로 퍼클로레이트와 질산염의 제거를 위해 무산소생물막반응조를 이용하였고 두 번째 단계로 이화적 퍼클로레이트와 질산염 환원을 위해 사용된 잔류탄소원의 제거를 위해 호기생물막반응조가 도입되었다. 그리고 마지막 단계로 탁도제거를 위해 중공사형 MF막을 적용하였다. 본 연구에서 102 μg/L ClO4-와 61.8 mg/L NO3- (14 mg/L NO3-N)가 유입수로 주입되어 퍼클로레이트는 IC 검출농도 이하(5 μg/L ClO4-)로 제거되었으며 질산염은 최종 처리수의 농도가 4.4 mg/L NO3- (1 mg/L NO3-N)로 제거되었다. 탄소원으로 사용된 과잉의 179 mg/L 유입CH3COO-는 무산소생물막반응조의 유출수에서 117 mg/L, 호기생물막반응조의 유출수에서 11 mg/L로 감소하였다. 3 NTU의유입 탁도는 무산소/호기생물막반응조의 유출수에서 1.5와 0.3 NTU였으며 최종 MF막의 유출수에서 0.2 NTU였다. 이 결과는지표수와 지하수에 포함된 저농도 퍼클로레이트와 질산염 오염의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막의연속처리가 적용될 수 있음을 의미하는 것으로 사료된다. This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF)membrane system can be used as a direct treatment for the removal of perchlorate and nitrate in groundwater. The biofilm process consisted of an anoxic first stage to remove perchlorate and nitrate and aerobic second stage to remove remaining acetate used as a carbon source for dissimilatory reduction of perchlorate and nitrate. In final stage, hollow fiber MF membrane was used to remove turbidity. In this research, perchlorate was reduced from the influent concentration of 102 μg/L to below the IC detection level (5 μg/L) and nitrate was reduced from 61.8 mg/L (14 mg/L NO3-N) to 4.4 mg/L (1 mg/L NO3-N). Acetate used as a carbon source was consumed from 179 mg/L CH3COO- to 117 and 11 mg/L CH3COO- in effluents from anoxic and aerobic biofilm reactors,respectively. Turbidity was reduced from 3.0 NTU to 1.5, 0.3, and 0.2 NTU in effluents from anoxic/aerobic biofilm reactors and MF membrane, respectively. It is expected that the sequential anoxic/aerobic biofilm reactors and MF membrane system can efficiently remove perchlorate and nitrate in surface water or groundwater. KCI Citation Count: 0 This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF) membrane system can be used as a direct treatment for the removal of perchlorate and nitrate in groundwater. The biofilm process consisted of an anoxic first stage to remove perchlorate and nitrate and aerobic second stage to remove remaining acetate used as a carbon source for dissimilatory reduction of perchlorate and nitrate. In final stage, hollow fiber MF membrane was used to remove turbidity. In this research, perchlorate was reduced from the influent concentration of 102 ${\mu}/L$ to below the IC detection level (5 ${\mu}/L$) and nitrate was reduced from 61.8 mg/L (14 mg/L $NO_3$-N) to 4.4 mg/L (1 mg/L $NO_3$-N). Acetate used as a carbon source was consumed from 179 mg/L $CH_3COO-$ to 117 and 11 mg/L $CH_3COO^-$ in effluents from anoxic and aerobic biofilm reactors, respectively. Turbidity was reduced from 3.0 NTU to 1.5, 0.3, and 0.2 NTU in effluents from anoxic/aerobic biofilm reactors and MF membrane, respectively. It is expected that the sequential anoxic/aerobic biofilm reactors and MF membrane system can efficiently remove perchlorate and nitrate in surface water or groundwater. 본 연구는 퍼클로레이트($ClO_4{^-}$)와 질산염($NO_3{^-}$)의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막에 의한 연속처리의 적용 가능성을 조사하였다. 생물막 처리공정은 첫 번째 단계로 퍼클로레이트와 질산염의 제거를 위해 무산소생물막반응조를 이용하였고 두 번째 단계로 이화적 퍼클로레이트와 질산염 환원을 위해 사용된 잔류탄소원의 제거를 위해 호기생물막반응조가 도입되었다. 그리고 마지막 단계로 탁도제거를 위해 중공사형 MF막을 적용하였다. 본 연구에서 102 ${\mu}g/L$ $ClO_4{^-}$와 61.8 mg/L $NO_3{^-}$ (14 mg/L $NO_3$-N)가 유입수로 주입되어 퍼클로레이트는 IC 검출농도 이하(5 ${\mu}g/L$ $ClO_4{^-}$)로 제거되었으며 질산염은 최종 처리수의 농도가 4.4 mg/L $NO_3{^-}$ (1 mg/L $NO_3$-N)로 제거되었다. 탄소원으로 사용된 과잉의 179 mg/L 유입 $CH_3COO^-$는 무산소생물막반응조의 유출수에서 117 mg/L, 호기생물막반응조의 유출수에서 11 mg/L로 감소하였다. 3 NTU의 유입 탁도는 무산소/호기생물막반응조의 유출수에서 1.5와 0.3 NTU였으며 최종 MF막의 유출수에서 0.2 NTU였다. 이 결과는 지표수와 지하수에 포함된 저농도 퍼클로레이트와 질산염 오염의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막의 연속처리가 적용될 수 있음을 의미하는 것으로 사료된다. |
Author | 최혁순(Hyeok Sun Choi) |
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DocumentTitleAlternate | Sequential Anoxic/Aerobic Biofilm Reactors and MF Membrane System for the Removal of Perchlorate and Nitrate |
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Keywords | 퍼클로레이트 Anoxic/aerobic Biofilm Reactor Perchlorate Nitrate 무산소/호기생물막반응조 질산염 MF / |
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Snippet | This research was conducted to investigate whether sequential anoxic/aerobic biofilm reactors and microfilteration (MF) membrane system can be used as a direct... 본 연구는 퍼클로레이트(ClO4-)와 질산염(NO3-)의 직접적인 처리방법으로 무산소/호기생물막반응조와 MF막에 의한연속처리의 적용 가능성을 조사하였다. 생물막 처리공정은 첫 번째 단계로 퍼클로레이트와 질산염의 제거를 위해 무산소생물막반응조를 이용하였고 두 번째 단계로 이화적... |
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Title | 무산소/호기생물막반응조와 MF막의 연속처리에 의한 퍼클로레이트와 질산염 제거 |
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