슬러지 탈리액 응집능 평가를 통한 재활용연구 = (A) Study on the Recycling of Waste Sludge Permeates by the Evaluation of their Flocculation Ability

다국어 초록 (Multilingual Abstract)

A study was done on the possibility of the treated sludge permeate as an adjuvant of flocculation for the purpose of saving flocculation agent consumption. The results are as follows. When a solution of 0.6% polyelectrolyte was used as a coagulant it is found that the flocculation is best at the dose of 230 mg/L. The concentration of remaining polyelectrolyte in permeate is estimated as 0.067%. In a case where only permeate is used the best result is obtained at the ratio of sludge to permeate is 66:34. In other case where only the polyelectrolyte solution is used the best result is obtained at the ratio of sludge to permeate is 96:4. This signifies that permeate is a possible candidate as flocculation agents. However the use of permeate leads into an inevitable decrease in the volume of sludge treated on the base of single operation. So the best way seems to be a continuous monitoring of optimum dose of flocculation and its application on the process. A thesis for the degree of Master in February 2010

목차 (Table of Contents)

• Ⅰ. 서 론 1
• 1.1. 연구의 배경 1
• 1.2. 연구의 목적 2
• 1.3. 연구의 내용 및 범위 2
• Ⅱ. 이론적 고찰 3
• 2.1. 응집 3
• 2.1.1. 응집이론 3
• 2.1.2. 고분자 응집제 종류별 특성 4
• 2.2. 슬러지 처리 7
• 2.2.1. 하수슬러지 분류 8
• 2.2.2. 슬러지 농축 9
• 2.2.3. 슬러지 개량 11
• 2.2.4. 슬러지 탈수 12
• 2.3. 하수처리장 슬러지 처리특성 조사 15
• 2.3.1. 하수처리시설 및 슬러지발생, 처리량 현황 15
• 2.3.2. 충북 C 하수처리장 현황 17
• Ⅲ. 연구방법 22
• 3.1. 실험내용 및 방법 22
• 3.1.1. 실험재료 22
• 3.1.2. 실험조건 23
• 3.2. 실험방법 23
• 3.2.1. JAR - TEST 24
• 3.2.2. 가압여과 26
• 3.2.3. 분석방법 26
• Ⅳ. 결과 및 고찰 27
• 4.1. 탈리액을 이용하여 응집후 여과비저항의 변화 35
• Ⅴ. 결 론 54
• 참 고 문 헌 55