摘要
研究了电场对活性炭吸附邻苯二胺的影响以及pH、邻苯二胺浓度和离子强度对电场强化活性炭吸附的影响。结果表明,随外加电场的增大,活性炭的吸附量急剧增大,但当电场增大到一定程度时,吸附量的增加趋缓并趋近于平衡。随邻苯二胺浓度的增大,活性炭的吸附量也随之增加;当pH和离子强度增大时,邻苯二胺的溶解度下降,活性炭的吸附量增大。将电场强化活性炭吸附和电化学再生有机结合对处理废水有一定的实用价值。
The influence of electric field on the activated carbon adsorption of o-phenylenediamine as well as the influence of pH, o-phenylenediamine concentration and ion intensity on the activated car- bon adsorption enhanced by electric field were studied. The results show that with external electric field increasing, the adsorption capacity of activated carbon increases rapidly. However, when the electric field increases to a certain extent, the increase of adsorption capacity slows down and approaches to the balance. The adsorption capacity of activated carbon increases with increasing o-phenylenediamine con- centration. When the pH and ion intensity increase, the solubility of o-phenylenediamine decreases and the adsorption capacity of activated carbon increases. The combination of activated carbon adsorption en- hanced by electric field and electrochemical regeneration has a practical value in wastewater treatment.
出处
《中国给水排水》
CAS
CSCD
北大核心
2009年第21期69-71,共3页
China Water & Wastewater
关键词
邻苯二胺
活性炭
电场
吸附
o-phenylenediamine
activated carbon
electric field
adsorption
