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      매립지 침출수 알칼리도가 조류 증식에 미치는 영향 = A Study on the Influence of Landfill Leachate Alkalinity of Use to the Algae Growth

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      https://www.riss.kr/link?id=T13256118

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      다국어 초록 (Multilingual Abstract) kakao i 다국어 번역

      Recently, the generation of landfill leachate in Korea is rapidly growing, due to improvement of life quality and industrialization. Landfill leachate typically contains high concentrations of organic, and the characteristics of landfill leachate depends on the content of waste. In addition, it is not easy to apply a standardized approach for dealing with landfill leachate, since the amount and characteristics of them can change over time. In order to overcome these problems, culturing algae in landfill leachate has been suggested. advantages of this method are not only to use nutrients from leachate but also to be able to produce bio-diesel from algae.
      This study was conducted for finding out the influence of landfill leachate alkalinity on the algae growth. The results were as follows;
      1. When using algae Scenedesmus sp. for treatment of landfill leachate, pH was increased sharply to approximately pH 9 at the beginning of cultivation, and the number of algae from the moment reaching pH 9 was slowly reduced.
      2. The most of nitrogen in the leachate present as the form of ammonia
      nitrogen. In the case of maintaining samples at pH 9.3 with 25℃ by addition of NaOH, the growing trend of algae became increasingly weaker with increase of total alkalinity.
      3. At pH 7 at 25°C by addition of HCl and at 1500 to 2500㎎ CaCO3/ℓ of total alkalinity, it reached the maximum number of algae about 81000/㎖ after 48 hours in culture.
      4. At pH 7 at 25°C and at 1500 to 2500㎎ CaCO3/ℓ of total alkalinity, total nitrogen decreased by 80% (from 2416㎎/ℓ to 480~720㎎/ℓ), and total phosphorus decreased by 85% (from 9.4㎎/ℓ to 1.4㎎/ℓ) after the culturing algae within landfill leachate. However, the treatment effect of the Chemical Oxygen Demand(COD) was not obvious.
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      Recently, the generation of landfill leachate in Korea is rapidly growing, due to improvement of life quality and industrialization. Landfill leachate typically contains high concentrations of organic, and the characteristics of landfill leachate depe...

      Recently, the generation of landfill leachate in Korea is rapidly growing, due to improvement of life quality and industrialization. Landfill leachate typically contains high concentrations of organic, and the characteristics of landfill leachate depends on the content of waste. In addition, it is not easy to apply a standardized approach for dealing with landfill leachate, since the amount and characteristics of them can change over time. In order to overcome these problems, culturing algae in landfill leachate has been suggested. advantages of this method are not only to use nutrients from leachate but also to be able to produce bio-diesel from algae.
      This study was conducted for finding out the influence of landfill leachate alkalinity on the algae growth. The results were as follows;
      1. When using algae Scenedesmus sp. for treatment of landfill leachate, pH was increased sharply to approximately pH 9 at the beginning of cultivation, and the number of algae from the moment reaching pH 9 was slowly reduced.
      2. The most of nitrogen in the leachate present as the form of ammonia
      nitrogen. In the case of maintaining samples at pH 9.3 with 25℃ by addition of NaOH, the growing trend of algae became increasingly weaker with increase of total alkalinity.
      3. At pH 7 at 25°C by addition of HCl and at 1500 to 2500㎎ CaCO3/ℓ of total alkalinity, it reached the maximum number of algae about 81000/㎖ after 48 hours in culture.
      4. At pH 7 at 25°C and at 1500 to 2500㎎ CaCO3/ℓ of total alkalinity, total nitrogen decreased by 80% (from 2416㎎/ℓ to 480~720㎎/ℓ), and total phosphorus decreased by 85% (from 9.4㎎/ℓ to 1.4㎎/ℓ) after the culturing algae within landfill leachate. However, the treatment effect of the Chemical Oxygen Demand(COD) was not obvious.

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      목차 (Table of Contents)

      • <목차>
      • 목차 ⅰ
      • 표 목차 ⅳ
      • 그림 목차 ⅴ
      • <목차>
      • 목차 ⅰ
      • 표 목차 ⅳ
      • 그림 목차 ⅴ
      • I. 서 론 1
      • II. 이론적 배경 3
      • 2.1. 국내 침출수의 발생 및 처리 현황 3
      • 2.2. 매립지 침출수 수질 현황 5
      • 2.3. 침출수 처리 공정 9
      • 2.3.1. 물리·화학적 침출수 처리 10
      • 2.3.1.1. 화학적 응집침전 10
      • 2.3.1.2. 화학적 산화 10
      • 2.3.1.3. 흡착 11
      • 2.3.1.4. 역삼투 11
      • 2.3.2. 생물학적 침출수 처리 12
      • 2.3.2.1. 혐기성소화 12
      • 2.3.2.2. 포기식 라군법 13
      • 2.3.2.3. 회전원판 13
      • 2.3.2.4. 접촉산화법 14
      • 2.3.2.5. 활성슬러지 공법 14
      • 2.3.3. 미세조류를 이용한 침출수 처리 15
      • 2.4. 침출수 독성 19
      • 2.4.1. 암모니아성 질소 19
      • 2.4.2. 침출수의 20
      • III. 실 험 22
      • 3.1. 시료 22
      • 3.1.1. 침출수 22
      • 3.1.2. 대상 미세조류 및 배지 22
      • 3.2. 분석항목 및 방법 25
      • 3.2.1. 알칼리도 측정 및 pH와의 관계 25
      • 3.2.2. 조류 농도 측정 27
      • 3.3. 실험방법 28
      • 3.3.1. 조류 적응배양 28
      • 3.3.2. 미세조류 배양 침출수 기초 실험 29
      • 3.3.3. 암모니아 독성 실험 30
      • 3.3.4. 알칼리도 변화와 조류 성장 31
      • IV. 실험 결과 및 고찰 33
      • 4.1. 알칼리도에 따른 침출수 pH의 변화 33
      • 4.2. 미세조류의 침출수 기초 배양 34
      • 4.2.1. 배양시간과 pH 및 개체수의 변화 34
      • 4.2.2. 배양 시간과 TAN의 변화 36
      • 4.3. 암모니아 독성 37
      • 4.3.1. pH 9.3에서 배양시간과 조류 개체수 변화 37
      • 4.3.2. pH 9.3에서 배양 시간과 TAN 변화 38
      • 4.4. pH 중성 침출수의 미세조류 배양 39
      • 4.4.1. pH 7 침출수의 배양시간과 개체수 변화 39
      • 4.4.2. pH 7 침출수의 배양시간과 TAN 변화 40
      • 4.5. 알칼리도와 미세조류 개체수 변화 41
      • 4.6. 미세조류의 침출수 처리 효과 42
      • 4.6.1. 침출수의 질소 농도 변화 42
      • 4.6.2. 침출수 처리 후 인 농도 변화 43
      • 4.6.3. 침출수 처리 후 COD 변화 44
      • V. 결 론 45
      • 참고문헌 47
      • 영문초록 52
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