Abstract:
Microwave regeneration research has been conducted for the granular activated carbon （GAC） which has adsorbed 2，4-dichlorophenol（DCP）. The effects of microwave power， microwave irradiating time and GAC dosage on the desorption of DCP and consumption of GAC are investigated. The results show that the DCP desorption rate increases with the microwave power， irradiating time and dosage of GAC， but the corresponding GAC consumption increases as well. When the microwave power is 420 W， irradiating time 3 min， GAC dosage 5 g， the DCP desorption rate reaches 95.5% and the dosage of GAC consumption is only 9.1%. Based on the determination of the regenerated iodine value which has been regenerated for many times， it shows that after the 2nd adsorption-regeneration circulation， the iodine value exceeds that of fresh iodine value. There have not been apparent decrease， after the 5th circulation.
Key words:
microwave,
regeneration,
2,
4-dichlorophenol,
granular activated carbon
摘要：
对吸附2,4-二氯酚(DCP)后的颗粒活性炭(GAC)进行了微波再生研究,考察了微波功率、微波辐照时间和GAC用量对DCP解吸和GAC损耗的影响。结果表明,DCP解吸率随着微波功率、辐照时间以及GAC用量的增加而提高,但相应的GAC损耗量亦随之增加。微波功率420 W,辐照时间3 min,饱和吸附DCP的GAC 5 g,DCP解吸率达95.5%,而GAC损耗量仅为9.1%。通过测定多次再生后GAC的碘值,表明2次吸附-再生循环后GAC碘值超过了新鲜GAC的碘值,5次循环后GAC碘值下降不明显。
关键词:
微波,
再生,
2,4-二氯酚,
颗粒活性炭
CLC Number:
Ye Qunfeng, Li Xiaozhong, Guo Ting, Wang Fangyuan, Zhou Xiaoling, Zhang Qun. Research on the regeneration of granular activated carbon containing 2，4-dichlorophenol by microwave irradiation[J]. INDUSTRIAL WATER TREATMENT, 2010, 30(11): 52-55.
叶群峰, 李小忠, 郭婷, 王方园, 周小玲, 张群. 含2,4-二氯酚活性炭的微波再生研究[J]. 工业水处理, 2010, 30(11): 52-55.