超声场下苯酚吸附相平衡和均相催化剂氧化降解实验研究  

STUDY ON THE ADSORPTION EQUILIBRIUM AND THE HOMOGENOUS CATALYTIC OXIDATION OF PHENOL UNDER ULTRASOUND

作　　者：谢兰英[1] 李忠[1] 奚红霞[1] 罗灵爱 

机构地区：[1]华南理工大学化工与能源学院,传热强化与过程节能教育部重点实验室 [2]L OCIE,ESIGEC-Universitéde Savoie,Campus Scientifique,Savoie Technolac 73376,Le Bourget-Du-Lac cedex,France

出　　处：《离子交换与吸附》2007年第1期40-47,共8页Ion Exchange and Adsorption

基　　金：国家自然科学基金重点项目(29936100)

摘　　要：测定了常规条件和超声场条件下苯酚在活性炭上的吸附等温线,并研究了超声再生活性炭和均相催化剂氧化降解苯酚实验。研究结果表明,超声场作用下苯酚在活性炭上的吸附等温线降低,平衡吸附量减少,被脱附下来的苯酚及时被Cu2+和Fe3+型催化剂氧化降解,吸附剂得到更彻底再生,避免了二次污染,而且再生后的活性炭均具有较高的二次吸附能力,对于处理低浓度含酚废水具有实际意义。In this work, the adsorption equilibrium of phenol on activated carbon under ultrasound was studied. Results indicated that the isotherms of phenol on the activated carbons in the presence of ultrasound was lower than that in the absence of ultrasound. The use of ultrasound to enhance the desorption of phenol and the degradation of the desorbed phenol by means of homogenous Cu^2＋ and Fe^3＋ catalyst were proposed in the adsorption system. That the desorption of phenol and the degradation of the desorbed phenol were carried out synchronously in the presence of ultrasound and the homogenous catalyst made not only the activated carbon be regenerated thoroughly but also the phenol desorbed from adsorbent be degradated immediately, which has potential for the treatment of low concentration phenol-polluted water.

关 键 词：超声场 均相催化剂 活性炭 苯酚 

分 类 号：O647.3[理学—物理化学]