증발농축을 이용한 방사선 필름의 폐액처리 특성 = The Characteristics of the Treatment of Wastewater from X-Ray Film by Using Concentrated Evaporation

다국어 초록 (Multilingual Abstract)

A concetrated evaporation experimnt was carried out in this study, to find out the removal and concoentration efficiency of havy metals from concentration process as well as analysis and investigation for the characteristics of the condensed water. In the experiment of wastewater treatment from X-ray film by using concentrated evaporation, the results show that COD removal efficency rate was more than about 99%, the major toxic metals, including Pb, CN, F, Zn was almost removed. It could be seen that the early boiling point of each wastewater was 108.5℃ for the wastewater of the fixing solution, 106.7℃ for the wastewater of developing solution and 107℃ for the mixture(1:1) of both wastewater. The increasing rate of boiling point was the greatest in the wastewater of the developing solution and the mixture and the wastewater of fixing solution in descending order. The boiling point under latm in a vacuum was 30℃ for the wastewater of the developing solution, 37℃ for the wastewater of fixing solutions, and 35℃ for the mixture.

목차 (Table of Contents)

• 1.서론
• 2.방서선 필름폐액의 발생현황 및 특성
• 2.1 군내 방사선 필름 폐액의 발생현황 및 특성
• 2.2 국내 병원폐액의 발생현황 및 특성
• 2.3 국내 사진폐액의 발생현황 및 특성
• 3.실험재료 및 방법
• 3.1 방사선 필름폐액의 분석 및 성상
• 3.2 실험장치
• 3.3 실험방법
• 4.결과 및 고찰
• 4.1 폐액의 증발농축처리 실험
• 4.2 증발량에 따른 농측액 비점 상승
• 4.3 감압에 따른 폐액의 비점 변화
• 4.4 증발에 따른 응축액의 COD 농도 변화
• 5.결론