活性碳纤维去除水中微污染物的研究

Removing Micro-pollutants in Water by Activated Carbon Fiber

研究了在不同温度、pH等条件下,活性碳纤维(ACF)对水中微污染苯酚和氯苯系列的吸附动力学。在碱性条件下由于活性炭纤维表面的弱极化作用,吸附容量有所加强,同时也随着环境温度的增加而增大。活性炭纤维对氯苯系列吸附容量的大小比较是:k_六氯苯>k_二氯苯>k_三氯苯>k_氯苯。通过对ACF与颗粒活性碳(GAC)吸附的QSAR推算和实测吸附容量进行比较,表明ACF的吸附容量要远大于GAC。

The removal of micro-pollutants, such as phenol, chlorobenzene, ortho-dichlorobenzene, 1,2.4-trichlorobenzene and hexachlorobenzenne, in water under condiition of different temperature and pH etc was studied in the paper. Adsorbing capacity was increasing under basic condition because the minor polarization on the surface of ACF.it was also increasing with the increment of temperature. The order of adsorbing capacity of chlorobenzenes was:k6>k2 > k3 > k1, meanwhile, QSAR was applied to predict the adsorbing parameters k.it showed the adsorbing capacity of ACF was more than that of GAC and equations should be revised to meet the adsorption of ACF.