• Title/Summary/Keyword: 레미콘회수수

Search Result 2, Processing Time 0.016 seconds

Study on optimization of liquid carbonation pilot plant (system) using sludge water of ready-mixed concrete (레미콘회수수를 이용한 액상탄산화 Pilot plant(System) 최적화에 관한 연구)

  • Kim, Jae Gang;Shin, Jae Ran;Kim, Hae Gi;Kang, Ho Jong
    • Journal of the Korean Applied Science and Technology
    • /
    • v.33 no.2
    • /
    • pp.239-246
    • /
    • 2016
  • In this study, recycling sludge water of Ready-mixed concrete, and was carried out to optimize the system for recycling of the $CO_2$. The most important process in the liquid phase using a carbonation reaction can be recovered ready-mixed concrete is a process for the $Ca^{2+}$ release. $Ca^{2+}$ concentration of the experiment relative to the pH being lowered by the acidic substance during elution was performed. $CO_2$ was trapped in the MEA solution using a generator flue gas. In ready-mixed concrete can be synthesized $CaCO_3$ up to 11kg/1ton. The resulting $CaCO_3$ analysis results show that it is possible to use paper industry.

Study on liquid carbonation using the recycling water of ready-mixed concrete (레미콘회수수를 이용한 액상탄산화에 관한 연구)

  • Lim, Yun-Hui;Lee, Ju-Yeol;Choi, Chang-Sik;Hong, Bum-Ui;Park, Jin-Won;Lee, Dae-Young;Park, Byung-Hyun
    • Journal of the Korean Applied Science and Technology
    • /
    • v.30 no.4
    • /
    • pp.770-778
    • /
    • 2013
  • In this study, a liquid carbonation method was applied for producing precipitate calcium carbonate by liquid-liquid reaction. We recycled the recycling water of ready-mixed concrete, one of construction waste for use source of carbonate ion. A supernatant separated from the recycling water of ready-mixed concrete, as a result of ICP analysis of a cation, $Ca^{2+}$ was contained up to 1100 ppm. We used MEA as a $CO_2$ absorbent for the liquid carbonation. A precipitate $CaCO_3$ was produced at more than MEA 20 wt%. The precipitate $CaCO_3$ as a final product was separated and dried. The result of XRD was confirmed the generation of $CaCO_3$ to calcite structure.