비소를 함유한 중금속슬러지 고화체의 미세구조적 분석

• 영문명: Microstructural Analysis of the Solidified Arsenic-containing Heavy Metal Sludge
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 김영관(Yeong Kwan Kim) 정명선(Myoung Sun Jeong)
• 간행물 정보: 『산업기술연구』vol.16, 169~174쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1996.09.30

영문 초록

Microstructural analyses of synthetic arsenic-containing heavy metal sludges solidified with Portland cement were performed. Heavy metal sludges containing 0.04M of cadmium, chromium, copper, lead, and arsenic were prepared by sodium hydroxide precipitation and successive vacuum filtration. The sludges mixed with cement were cured for 14 days. The solidified sample was characterized by 1)leaching test, 2)scanning eletron microscopy and 3) X-ray diffractometry. Of the metals tested, only Pb concentration in the leachate exceeded the Korean regulatory limit. The level of lead in the leachate was as high as 10 times the regulatory limit. X-ray analysis suggested that the metal hydroxides might be present in comnplex or impure crystalline phases.

목차

ABSTRACT

1. 서론

2. 실험재료 및 방법

3. 결과 및 고찰

4. 결론

참고문헌