완속 모래여과 공정에서의 Geosmin 제거 특성

Geosmin removal by biodegradation was investigated in lab-scale slow sand filtration column with different empty bed contact times (EBCTs) and water temperature. Schmutzdecke layer was built up after 30 days operation and biomass and activity were $4.5{\times}10^6\;CFU/g$ and $3.42\;mg{\cdot}C/m^3{\...

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Published inDaehan hwan'gyeong gonghag hoeji Vol. 32; no. 8; pp. 754 - 760
Main Authors 손희종(Hee Jong Son), 염훈식(Hoon Sik Yoom), 장성호(Seong Ho Jang)
Format Journal Article
LanguageKorean
Published 대한환경공학회 2010
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ISSN1225-5025
2383-7810

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Abstract Geosmin removal by biodegradation was investigated in lab-scale slow sand filtration column with different empty bed contact times (EBCTs) and water temperature. Schmutzdecke layer was built up after 30 days operation and biomass and activity were $4.5{\times}10^6\;CFU/g$ and $3.42\;mg{\cdot}C/m^3{\cdot}hr$, respectively. The attached bio-film microorganisms in schmutzdecke layer were isolated and identified. The dominant species was Pseudomonas sp. that had occupied 56%. Removal efficiencies of dissolved organic carbon (DOC) and geosmin were 27% and 95% after 30 days operation. In lab-scale slow sand filtration column, geosmin and DOC removal efficiencies were 62% and 10% at $5^{\circ}C$, respectively. And increasing water temperature ($15^{\circ}C$ and $25^{\circ}C$) increased the geosmin and DOC removal efficiencies (88~100% and 25~42%) in lab-scale slow sand filtration column. Geosmin and DOC biodegradation rates (k) in the schmutzdecke layer (in the upper 5 cm filter bed) were $1.842{\sim}15.965\;hr^{-1}$1 and $0.253{\sim}1.123\;hr^{-1}$, respectively. It were about 18~32 times and 20~51 times of the rates in the deeper filter bed (5~60 cm). 완속 모래여과 컬럼의 생물막(schmutzdecke)은 운전 시작 30일 정도에 정상상태에 도달하는 것으로 나타났으며, 생체량과 활성도는 각각 $4.5{\times}10^6\;CFU/g$과 $3.42\;mg{\cdot}C/m^3{\cdot}hr$로 나타났다. 정상상태에 도달한 생물 여과층의 박테리아 종 분포는 Pseudomonas sp.가 차지하는 비율이 56%였으며 그 중에서 Pseudomonas fluorescens가 전체비율의 22%를 차지하였다. 운전 시작 30일 후의 용존 유기탄소(dissolved organic carbon, DOC)와 geosmin의 제거율은 각각 27%와 95%로 나타나 최대의 제거율을 나타내었으며, 그 이후에는 DOC와 geosmin의 제거율에는 큰 변화가 없었다. 수온 변화에 따른 DOC와 geosmin의 제거율 변화에서 유입수의 수온이 $5^{\circ}C$일 경우 geosmin과 DOC의 평균 제거율은 각각 62%와 10%로 나타났으나 수온을 $15^{\circ}C$와 $25^{\circ}C$로 증가시켰을 경우에는 geosmin과 DOC의 평균 제거율이 각각 88%와 25% 및 100%와 42%로 나타났다. 수온 변화에 따른 완속 모래여과 컬럼의 상부 생물막 층에서의 geosmin과 DOC에 대한 생물분해 속도상수(k)는 $1.842{\sim}15.965\;hr^{-1}$와 $0.253{\cdot}1.123\;hr^{-1}$이였고, 상부의 생물막 층이 그 하부 보다 DOC와 geosmin에 대한 생물분해 속도상수가 각각 18~32배 및 20~51배 정도 큰 것으로 나타났다.
AbstractList Geosmin removal by biodegradation was investigated in lab-scale slow sand filtration column with different empty bed contact times (EBCTs) and water temperature. Schmutzdecke layer was built up after 30 days operation and biomass and activity were $4.5{\times}10^6\;CFU/g$ and $3.42\;mg{\cdot}C/m^3{\cdot}hr$, respectively. The attached bio-film microorganisms in schmutzdecke layer were isolated and identified. The dominant species was Pseudomonas sp. that had occupied 56%. Removal efficiencies of dissolved organic carbon (DOC) and geosmin were 27% and 95% after 30 days operation. In lab-scale slow sand filtration column, geosmin and DOC removal efficiencies were 62% and 10% at $5^{\circ}C$, respectively. And increasing water temperature ($15^{\circ}C$ and $25^{\circ}C$) increased the geosmin and DOC removal efficiencies (88~100% and 25~42%) in lab-scale slow sand filtration column. Geosmin and DOC biodegradation rates (k) in the schmutzdecke layer (in the upper 5 cm filter bed) were $1.842{\sim}15.965\;hr^{-1}$1 and $0.253{\sim}1.123\;hr^{-1}$, respectively. It were about 18~32 times and 20~51 times of the rates in the deeper filter bed (5~60 cm). 완속 모래여과 컬럼의 생물막(schmutzdecke)은 운전 시작 30일 정도에 정상상태에 도달하는 것으로 나타났으며, 생체량과 활성도는 각각 $4.5{\times}10^6\;CFU/g$과 $3.42\;mg{\cdot}C/m^3{\cdot}hr$로 나타났다. 정상상태에 도달한 생물 여과층의 박테리아 종 분포는 Pseudomonas sp.가 차지하는 비율이 56%였으며 그 중에서 Pseudomonas fluorescens가 전체비율의 22%를 차지하였다. 운전 시작 30일 후의 용존 유기탄소(dissolved organic carbon, DOC)와 geosmin의 제거율은 각각 27%와 95%로 나타나 최대의 제거율을 나타내었으며, 그 이후에는 DOC와 geosmin의 제거율에는 큰 변화가 없었다. 수온 변화에 따른 DOC와 geosmin의 제거율 변화에서 유입수의 수온이 $5^{\circ}C$일 경우 geosmin과 DOC의 평균 제거율은 각각 62%와 10%로 나타났으나 수온을 $15^{\circ}C$와 $25^{\circ}C$로 증가시켰을 경우에는 geosmin과 DOC의 평균 제거율이 각각 88%와 25% 및 100%와 42%로 나타났다. 수온 변화에 따른 완속 모래여과 컬럼의 상부 생물막 층에서의 geosmin과 DOC에 대한 생물분해 속도상수(k)는 $1.842{\sim}15.965\;hr^{-1}$와 $0.253{\cdot}1.123\;hr^{-1}$이였고, 상부의 생물막 층이 그 하부 보다 DOC와 geosmin에 대한 생물분해 속도상수가 각각 18~32배 및 20~51배 정도 큰 것으로 나타났다.
완속 모래여과 컬럼의 생물막(schmutzdecke)은 운전 시작 30일 정도에 정상상태에 도달하는 것으로 나타났으며, 생체량과 활성도는 각각 4.5×106 CFU/g과 3.42 mg․C/m3․hr로 나타났다. 정상상태에 도달한 생물 여과층의 박테리아 종 분포는Pseudomonas sp.가 차지하는 비율이 56%였으며 그 중에서 Pseudomonas fluorescens가 전체비율의 22%를 차지하였다. 운전 시작 30일 후의 용존 유기탄소(dissolved organic carbon, DOC)와 geosmin의 제거율은 각각 27%와 95%로 나타나 최대의 제거율을 나타내었으며, 그 이후에는 DOC와 geosmin의 제거율에는 큰 변화가 없었다. 수온 변화에 따른 DOC와 geosmin의 제거율 변화에서 유입수의 수온이 5℃일 경우 geosmin과 DOC의 평균 제거율은 각각 62%와 10%로 나타났으나 수온을 15℃와 25℃로 증가시켰을 경우에는 geosmin과 DOC의 평균 제거율이 각각 88%와 25% 및 100%와 42%로 나타났다. 수온 변화에 따른 완속모래여과 컬럼의 상부 생물막 층에서의 geosmin과 DOC에 대한 생물분해 속도상수(k)는 1.842~15.965 hr-1와 0.253~1.123 hr-1 이였고, 상부의 생물막 층이 그 하부 보다 DOC와 geosmin에 대한 생물분해 속도상수가 각각 18~32배 및 20~51배 정도 큰 것으로 나타났다. Geosmin removal by biodegradation was investigated in lab-scale slow sand filtration column with different empty bed contact times (EBCTs) and water temperature. Schmutzdecke layer was built up after 30 days operation and biomass and activity were 4.5×106 CFU/g and 3.42 mg․C/m3․hr, respectively. The attached bio-film microorganisms in schmutzdecke layer were isolated and identified. The dominant species was Pseudomonas sp. that had occupied 56%. Removal efficiencies of dissolved organic carbon (DOC) and geosmin were 27% and 95% after 30 days operation. In lab-scale slow sand filtration column, geosmin and DOC removal efficiencies were 62% and 10% at 5℃, respectively. And increasing water temperature (15℃ and 25℃) increased the geosmin and DOC removal efficiencies (88~100% and 25~42%) in lab-scale slow sand filtration column. Geosmin and DOC biodegradation rates (k) in the schmutzdecke layer (in the upper 5 cm filter bed) were 1.842~15.965 hr-1 and 0.253~1.123 hr-1, respectively. It were about 18~32 times and 20~51 times of the rates in the deeper filter bed (5~60 cm). KCI Citation Count: 1
Author 손희종(Hee Jong Son)
장성호(Seong Ho Jang)
염훈식(Hoon Sik Yoom)
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DocumentTitleAlternate Removal Characteristics of Geosmin in a Slow Sand Filteration Process
DocumentTitle_FL Removal Characteristics of Geosmin in a Slow Sand Filteration Process
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Issue 8
Keywords Biodegradation
생물막
생물 여과막
Slow Sand Filtration
Geosmin
Schmutzdecke Layer
Biofilm
완속 모래여과
생물분해
지오즈민
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완속 모래여과 컬럼의 생물막(schmutzdecke)은 운전 시작 30일 정도에 정상상태에 도달하는 것으로 나타났으며, 생체량과 활성도는 각각 4.5×106 CFU/g과 3.42...
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Title 완속 모래여과 공정에서의 Geosmin 제거 특성
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