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논문 기본 정보

자료유형
학술저널
저자정보
손화성 (그린환경종합센터) 배수현 ((사)한국환경기술학회) 이기상 (금정바이오테크사) 유찬서 (순천대학교)
저널정보
한국환경기술학회 한국환경기술학회지 한국환경기술학회지 제21권 제2호
발행연도
2020.1
수록면
101 - 106 (6page)

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초록· 키워드

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The following conclusions were obtained from the batch coagulation experiment for several coagulants such as alkaline water, PAC, Chitosan, and Ca(OH)2 in order to compare the removal efficiency of microalgae by these coagulants. When alkaline water was used as a coagulant, removal efficiency of turbidity 95.5%, DCW 95.4%, OD 96.3%, Chlorophyll-a 97.7%, and PO4-P 76.1% was obtained. When PAC was used, the effects of turbidity 98.2%, DCW 99.5%, OD 99.5%, Chlorophyll-a 99.7%, and PO4-P 99.4% were obtained. Turbidity 96.4%, DCW 98.0%, OD 97.6%, Chlorophyll-a 97.6%, and PO4-P 20.8% on by using Chitoson, and turbidity 89.4%, DCW 95.8%, OD 95.9%, Chlorophyll-a 98.8%, and PO4-P 87.3% were able to be accomplished on Ca(OH)2 coagulant. The amount of sludge produced by coagulation after 40 minutes of settling time with each coagulant, as alkaline water, PAC, chitosan and Ca(OH)2 was shown to be 4.5mL, 95mL, 5mL, and 10mL. And the Chlorophyll-a concentrations in each flocculated sludge by different coagulant were measured as 48,800, 5,310, 35,750, 4,180mg/m3, respectively. Alkaline water can be used as a coagulant without adjusting the pH, and the produced flocculation sludge is excellent in settling properties and can be used as a biomass of high compressed chlorophyll-a, so it is considered to be excellent as a eco-friendly coagulant.

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