活性炭吸附法处理对苯二甲酸废水研究

选择了4种不同类型、不同粒度的活性炭作为吸附剂，对苯二甲酸废水的吸附行为进行了研究。对苯二甲酸浓度采用紫外分光光度法测定。实验结果表明粒度为20-40目的A活性炭的吸附性能最好。活性炭吸附量随溶液pH值升高而降低，pH值为6时的吸附量约为DH为14时的4倍。搅拌可以缩短活性炭达到平衡吸附的时间，但对平衡吸附量影响很小。

Adsorption of Terephthalic Acid Waster Water over Activated Carbon

Adsorption of terephthalie acid （TA） waster water on activated carbon （AC） was studied in this paper. Four different kinds of activated carbons were chosen as the adsorbents. The concentration of TA was determined by UN spectrometry. The results indicated that the h activated carbon with 20-40 mesh particle size made by Huzhou showed the highest adsorptive capacity. The adsorptive capacity of AC increased with the decrease of pH value of waster water. The adsorptive capacity at pH value of 6 was about 4 times at 14. The agitation can shorten the time of saturation adsorption of AC, but has little influence on the adsorption capacity.