活性碳纤维吸附水中酚及脱附条件实验研究

化工、医药等行业排出的含酚废水对环境造成的污染十分严重,其废水的处理日益受到重视。活性炭纤维(Activated Carbon Fibers,ACF)作为一种新型吸附材料,其具有的大比表面积、丰富微孔结构等特点,使其吸附过程效率高。并且其吸附操作设备具有简单、方便、能耗低等优点,从而使该吸附法成为近年来一种快速发展的废水处理方法。本研究通过静态条件下的吸脱附性能研究,研究了ACF吸附水中酚的规律,确定了最佳的吸附时间为4 h,水溶液pH为弱酸性及低温有利于吸附的结果,得到了准确的平衡吸附量;找到了合适的ACF脱附再生剂NaOH,并测试出其多次再生的利用率。

An Experimental Study on Phenols Compounds Adsorption-desorption by Activated Carbon Fibers

The phenols wastewater pollution from chemical and pharmaceutical industry on environment becomes serious.Activated carbon fibers(ACF)as a new kind of fibrous adsorbent has been on exeillent candidate for waste water treatment due to its specific surface area,pore diameter,pore size distribution and cellular structure,and it’s adsorption equipment is smiple and low energy consumption.In this study,adsorption-desorption of ACF and regular pattern of phenols were explored under static condition.The results indicate that 4 h adsorption time,faintly acid and low temperture promote the adsorption,and obtaining the exact equilibrium adsorption capacity.NaOH was confirmcd to be on efficient desoption regeneration agent.