| Home | E-Submission | Sitemap | Login | Contact Us |  
J. Korean Ceram. Soc. > Volume 39(7); 2002 > Article
Journal of the Korean Ceramic Society 2002;39(7): 680.
doi: https://doi.org/10.4191/kcers.2002.39.7.680
산업폐기물 중의 유해중금속의 환경친화적 안정화 처리(I)
원종한, 안태호1, 최광휘, 최상흘, 손진군2, 심광보
한양대학교 세라믹공학과
1경기화학공업(주) 연구개발센터
2포항산업과학연구원 자원활용연구팀
Environmentally Adaptive Stabilization of the Hazardous Heavy Metal Waste by Cementious Materials(I)
The solidification/stabilization mechanism of each cementious material was investigated. It was found that when $C_3$S was hydrated , the Pb element could be transferred to the insoluble Ca[Pb(OH)$_3$.$H_2O$]$_2$and the Cr element to the CaCr $O_4$$H_2O$. The addition of heavy metal tends to delay the hydration until initial 7 days. The Pb element as also delayed the hydration and the Cr element was substituted for the ettringite. On the occasion of the hydration of $C_4$ $A_3$ $S^{S}$, the Pb and Cr ions were solidified/stabilized by the substitution into the ettringite and/or monosulfate. Leaching of the Pb, Cr and Zn elements in the solidified material was extremely little, indicating that heavy metals were effectively solidified/stabilized in the hydrated cementious materials. Solidification/stabilization of heavy metal ions in the industrial wastes such as the STS, BF and COREX sludge was investigated. In case of the mixing ratio of cement and slag was 3 : 7, leaching of hazardous heavy metal ions was very little, indications that the solidification and stabilization was very successful.l.
Key words: Solidification and stabilization, $C_3$S, $C_3$A, $C_4$$A_3$S, Sludge
Editorial Office
Meorijae Bldg., Suite # 403, 76, Bangbae-ro, Seocho-gu, Seoul 06704, Korea
TEL: +82-2-584-0185   FAX: +82-2-586-4582   E-mail: ceramic@kcers.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Ceramic Society.                      Developed in M2PI