School of Civil Engineering, Universiti Sains Malaysia, Penang, Malaysia.
Water Sci Technol. 2010;61(3):641-9. doi: 10.2166/wst.2010.867.
Landfill leachate is one of the major contamination sources. In this study, the ability of synthetic ion exchange resins which carry different mobile ion for removing color, chemical oxygen demand (COD), and ammonia nitrogen (NH(3)-N) from stabilized leachate was investigated. The synthetic resin INDION 225 Na as a cationic exchanger and INDION FFIP MB as an anionic exchanger were used in this study. INDION 225 Na was used in hydrogen form (H(+)) and in sodium form (Na(+)), while INDION FFIP MB resin was used in hydroxide form (OH(-)) and in calcium form (Cl(-)) form. The results indicated better removal of color, COD and NH(3)-N by using INDION 225 Na in H(+) as compared with Na(+) form, while no performance differences were observed by using INDION FFIP MB in OH(-) or Cl(-) form. Applying cationic resin followed by anionic resin achieved 97, 88 and 94, percent removal of color, COD and NH(3)-N. The residual amounts were 160 Pt-Co, 290 mg/L and 110 mg/L of color, COD and NH(3)-N respectively.
垃圾渗滤液是主要的污染来源之一。本研究采用不同移动离子的合成离子交换树脂，考察其对稳定化垃圾渗滤液中色度、化学需氧量（COD）和氨氮（NH3-N）的去除能力。本研究采用阳离子交换树脂 INDION 225 Na 和阴离子交换树脂 INDION FFIP MB。INDION 225 Na 分别以氢型（H+）和钠型（Na+）形式使用，而 INDION FFIP MB 树脂则分别以氢氧根型（OH-）和钙型（Cl-）形式使用。结果表明，与 Na+形式相比，采用 H+形式的 INDION 225 Na 对色度、COD 和 NH3-N 的去除效果更好，而采用 OH-或 Cl-形式的 INDION FFIP MB 则没有表现出性能差异。采用阳离子树脂后接阴离子树脂，可分别达到 97%、88%和 94%的色度、COD 和 NH3-N去除率。残留量分别为 160Pt-Co、290mg/L 和 110mg/L 的色度、COD 和 NH3-N。
