• Title/Summary/Keyword: mackban-stone

Search Result 2, Processing Time 0.014 seconds

Removal of heavy metal and Hydrogen sulfide/Nitrophenol using Mackban-stone (맥반석을 이용한 중금속과 악취물질/nitrophenol의 제거)

  • Quen, Zhe-Xue;Yin, Cheng-Ri;Jin, Yin-Shu;Seok, Mi-Soo;Lee, Sung-Taik
    • Journal of the Korea Organic Resources Recycling Association
    • /
    • v.9 no.2
    • /
    • pp.45-51
    • /
    • 2001
  • Mackban-stone effectively removed heavy metals, such as Fe, Cu, Cd, and Zn, with best removal of Fe and Cu. And the removal of heavy merals related with ion exchange of Ca. Mackban-stone is also an efficient deodorant of hydrogen sulfide and ammonia and inhibited the growth of E coli. The degradation rare of 4-nitropheno1 by Nocardioides sp. PNP101 and 2,4-dinitrophenol by Strain CJ1 and Rhodococcus sp. DNP 505 are increased by Mackbane-srone.

  • PDF

A Study on Removal Effect of Residual Pesticide on Adsorbent (흡착제에 의한 잔류농약 제거효과에 관한 연구)

  • An, Jung-hyeok;Kim, Joon-bum;Kwon, Young-du;Jeon, Choong;Park, Kwang-ha
    • Applied Chemistry for Engineering
    • /
    • v.18 no.6
    • /
    • pp.537-544
    • /
    • 2007
  • This study was carried out to investigate adsorption characteristics of residual pesticides on an adsorbent. $Bauxsol^{TM}$ and mackban-stone as adsorbent were used. Analytical method for residual pesticides was established by GC/NPD and $GC/{\mu}ECD$. Pesticides used in this study were ${\alpha}$-endosulfan, ${\beta}$-endosulfan, pendimethalin and chlorpyrifos-methyl, fenitrothion, and recovery rates were more than 97%. Adsorption rate on an adsorbent was decreased in order of endosulfan, chlorpyrifos-methyl, pendimethalin, fenitrothion. Organochlorine pesticides showed higher removal rate than the other pesticides. $Bauxsol^{TM}$ gave both chemical decomposition and physical adsorption. Mackban-stone gave only physical adsorption on the other hand. The high pH and chloric ions structure of eluted solution have greatly affected at chemical resolution. The removal rate of pesticides was increased due to the physical property of adsorbent, i.e. high porosity. The above adsorbent is to be a candidate to remove residual pesticides in water and pond of links.