부상분리 정수처리의 공기 요구량에 관한 연구 = A Study on the Bubble Volume Concentration in the Water Treatment with Dissolved Air Flotation

다국어 초록 (Multilingual Abstract)

Dissolved air flotation (DAF) is an alternative process to sedimentation that is especially effective for the removal of low density particles such as algae, alum lloc and floc particles produced from treating water supplies containing natural color or humic substances.

This study was carried out to analyze the factors that influencing the air requirement of DAF system such as saturator pressure and recycle ratio in the water treatment.

The results are as follows:
1. The most adequate concentration of alum was 1.5mg A1,O/L at 40ppm of turbidity.

2. As the increase of bubble volume concentration, the residue turbidity was decrease.

3. At the same condition of bubble volume concentration, as the increase of saturator
pressure the residue turbidity was decrease.

4. At the same condition of bubble volume concentration, as the increase of recycle ratio, the residue turbidity was increase.​

목차 (Table of Contents)

• Ⅰ. 서론
• Ⅱ. 연구내용 및 방법
• Ⅲ. 결과 및 고찰
• 1. 부상처리에 적합한 응집조건
• 2. Bubble volume concentration 변화에 따른 부상처리 효율
• 3. Saturator 압력변화에 따른 탁도 제거 효율
• 4. Recycle ratio 변화에 따른 탁도 제거효율
• Ⅳ. 결과 및 고찰