Using Heterogeneous Catalytic Oxidation Processes for the Treatment of Landfill Leachate

• Main Authors: Hsin-Sin Yang, 楊信欣
• Other Authors: Huan-Jung Fan
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/00169015129380641731

碩士 === 弘光科技大學 === 環境工程研究所 === 94 === Abstract The purpose of this study is to investigate the characteristics of a northern Taiwan’s landfill leachate and the feasibility of applying heterogeneous catalytic oxidation processes (FeGAC/H2O2, Nano Fe/H2O2 and FeGAC/O3) for the treatment of the leachate. Parameters investigated in this research included contents of COD, BOD, SS, TS, VSS, VOC, functional groups, Microtox acute tests and metals (Pb, Ca, Cd, Hg, Cr, Cu, Fe, K, Mg, Mn, Na, Ni and Zn). The experimental results showed that average and range of COD, BOD and SS of landfill leachate were 8884 (3962-17670), 2435 (948-3663) and 396 (88-717) mg/L, respectively. Fall season had the highly organic contents (COD and BOD). The toxicities were relatively high in landfill leachate. The experimental results indicated that the removal efficiency of heterogeneous catalytic oxidation processes is more efficient than using GAC alone. For example FeGAC/H2O2, Nano Fe/H2O2, FeGAC/O3 and GAC removal efficiencies were 74, 47, 61 and 22 %, respectively. The kinetic reaction data of FeGAC/H2O2 and FeGAC/O3 processes can fit well with Intra-particle diffusion model. The removal efficiency of FeGAC/H2O2 process is better than those of FeGAC/O3 and Nano Fe/H2O2 processes. Keywords：Landfill, Leachate, Catalyst, Adsorption isotherm, GAC