School of Civil Engineering, Universiti Sains Malaysia (USM), Engineering Campus, Penang, Malaysia.
J Hazard Mater. 2011 Feb 15;186(1):92-102. doi: 10.1016/j.jhazmat.2010.10.082. Epub 2010 Oct 30.
Two new applications for sequence treatment of mature (stabilized) landfill leachate, that is, cationic resin followed by anionic resin (cationic/anionic) and anionic resin followed by cationic resin (anionic/cationic), are employed and documented for the first time in the literature. Response surface methodology (RSM) concerning central composite design (CCD) is used to optimize each treatment process, as well as evaluate the individual and interactive effects of operational cationic resin dosage and anionic resin dosage on the effectiveness of each application in terms of color, chemical oxygen demand (COD), and NH(3)-N removal efficiency. A statistically significant model for color, COD, and NH(3)-N removal was obtained with high coefficient of determination values (R(2)>0.8). Under optimum operational conditions, the removal efficiency levels for color, COD, and NH(3)-N are 96.8%, 87.9%, and 93.8% via cationic/anionic sequence, and 91.6%, 72.3%, and 92.5% via anionic/cationic sequence, respectively. The experimental results and the model predictions agree well with each other.
首次在文献中采用了两种新的成熟（稳定）垃圾渗滤液序列处理应用，即阳离子树脂-阴离子树脂（阳离子/阴离子）和阴离子树脂-阳离子树脂（阴离子/阳离子）。响应面法（RSM）中的中心复合设计（CCD）用于优化每个处理过程，并评估操作阳离子树脂剂量和阴离子树脂剂量对每种应用在颜色、化学需氧量（COD）和 NH(3)-N 去除效率方面的有效性的单独和交互影响。得到了颜色、COD 和 NH(3)-N 去除的统计学上显著的模型，具有较高的确定系数值（R(2)>0.8）。在最佳操作条件下，通过阳离子/阴离子序列分别达到 96.8%、87.9%和 93.8%的颜色、COD 和 NH(3)-N 的去除效率水平，通过阴离子/阳离子序列分别达到 91.6%、72.3%和 92.5%的颜色、COD 和 NH(3)-N 的去除效率水平。实验结果和模型预测吻合良好。
