大孔树脂对渗滤液中可溶性有机物的吸附性能

Adsorption of Dissolved Organic Compounds in Leachate Processed by Macroporous Resin

利用树脂分离法对渗滤液生化处理后出水中的有机物进行分析表征,结果表明憎水性腐殖质占渗滤液可溶性有机物的35.3%,是造成渗滤液不能达标排放的主要原因。大孔树脂H103对渗滤液中可溶性有机物去除效率高达65.1%;树脂比表面积是影响吸附效果的最主要因素,而树脂孔径与吸附效率无明显相关性。树脂投加量与去除效率正相关性明显,优化试验结果表明H103树脂在pH=2、投加量0.3 g、震荡时间为48 h时,去除效率最高。

The dissolved organic matter （DOM） in the leachate which treated by the biological treatment process was characterized using resin separation method. The results show that the hydrophobic humus is the main component of the DOM with the content high than 35.3 %. The DOM removal efficiency of H103 resin is 65.1%. The specific surface area of resin is the key factor of removal efficiency, while the pore size of rein does not show any relationship with the removal efficiency. Resin dosage shows a positive correlation with the removal efficiency, the maximum removal efficient of H103 was get under the pH of 2, dosage of 0.3 g and shaken time of 48 h.