Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
권호 표지
DOI QR코드

DOI QR Code

Pollutant Release from Crushed Reclaimed Concrete

폐콘크리트 재생골재로부터의 오염물질 용출에 대한 실험적 고찰

  • 홍성구 (한경대학교 지역자원시스템공학과)
  • Published : 2005.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recycling of reclaimed concrete (RC) is very important in the management of construction and demolition wastes. Most of RC is utilized for land-filling after crushing in this country. In this study, a series of elution experiments were conducted to investigate the type and amount of pollutants released from the crushed RC. Most water quality parameters including heavy metals and some organic compounds were below standards for drinking water. Some of heavy metals such as As, Cd, Pb, Hg were detected in 0.5 N H2S04 solution after 24-hour immersing RC, which was conducted for evaluating a long term release effect. The concentration of the heavy metals were higher than the drinking water standards. The results also showed significant adsorption of heavy metals by crushed Re. Potential risks, based on the result of this study were not high in using crushed RC for land-filling. Appropriate management of RC would reduce the risk, for example the separation of hazardous materials from construction wastes. Long term evaluations for the sites of land filled with RC would be required to assess the environmental impacts.

Keywords

References

  1. Johnson D.C., Coleman N.J., Lane J., Hills C.D. and Poole A.B. 2000. A preliminary investigation of the removal of heavy metal species from aqueous media using crushed concrete fines, Waste Materials in Construction. Waste Management Series. 1, 1044-1049 https://doi.org/10.1016/S0713-2743(00)80113-0
  2. Han, M. Y., I. Y. Lee, M. H. Kim, Y. J. Kim. 2002. pH and Electrical Conductivity in Rain Water Utilization System. Journal of the Korean Society of Water and WasteWater 16(1): 80-86. (in Korean)
  3. Harvey, N. W. and V. Chantawong, 2001. Adsorption of heavy metals by ballcaly : their competition and selectivity. Thesis collection of Tokyo University of Information Science 5(1) :79-86
  4. Kim, H. Y., C. W. Chae, S. H. Lee, K. S. Yang. 1996. A Study on Performance and Production of Manufactured Cement Brick using Recycled Aggregates. Journal of the Architectural Institute of Korea 12(11):189-200. (in Korean)
  5. Kim, D. H. 1996. A Study on Development of Durable Cement Mortar for Reclaimed Concrete. Graduate School for Construction. ChungAng University (in Korean)
  6. Lee, J. Y. 1998. Recycling technology for reclaimed concrete. the KSCE Journal of Civil Engineering 46(12):11-16. (in Korean)
  7. Ministry of Environment. 2003. White Book on Environment. (in Korean)
  8. US. EPA. 1995. Construction and demolition waste landfills : Draft Report, U.S. EPA
  9. Vrancken, K. C., B. Laethem, L. Debaene, J. V. Dessel, L. De Bock. 1999. Environmental quality and management of construction and demolition waste in Flanders. R'99 Congress (Recovery, Recycling, Re-integration)
  10. Walsh. P. and P. O'Leary. 2002. Landfilling demolition and high-volume industrial wastes. Waste Age October 2002:68-73
  11. Weber, W. J., Y. C. Jang, T. G. townsend, and S. Laux. 2002. Leachate from land disposed residential construction waste. Journal of Environmental Engineering 128 (3): 237-245 https://doi.org/10.1061/(ASCE)0733-9372(2002)128:3(237)