CAJ | 학술논문

研究了20 kHz超声波强化活性炭颗粒吸附不同种类水溶液中全氟辛烷磺酸（PFOS）和全氟辛酸（PFOA）的动力学。结果表明：平衡吸附被证实符合BET多层等温吸附,最大单层吸附容量为qmPFOS〉qmPFOA;在PFOS和PFOA初始浓度为50 mg/L时超声波辐照下活性炭颗粒吸附符合表观拟二级动力学关系,平衡吸附容量和起始吸附速率分别为qePFOS〉qePFOA和hPFOS〉hPFOA;在去离子水（MQ）中的PFOS和PFOA最大单层吸附平衡容量qm和平衡吸附容量qe及起始吸附速率h和吸附动力学常数K均大于预处理或未预处理后的垃圾渗滤地表水（Pre-GW和GW）中对PFOS和PFOA的平衡吸附量和吸附动力学常数;20 kHz超声波强化活性炭颗粒吸附PFOS和PFOA效果明显,其吸附动力学常数增强因子为7.7和4.4。
연구료20 kHz초성파강화활성탄과립흡부불동충류수용액중전불신완광산（PFOS）화전불신산（PFOA）적동역학。결과표명：평형흡부피증실부합BET다층등온흡부,최대단층흡부용량위qmPFOS〉qmPFOA;재PFOS화PFOA초시농도위50 mg/L시초성파복조하활성탄과립흡부부합표관의이급동역학관계,평형흡부용량화기시흡부속솔분별위qePFOS〉qePFOA화hPFOS〉hPFOA;재거리자수（MQ）중적PFOS화PFOA최대단층흡부평형용량qm화평형흡부용량qe급기시흡부속솔h화흡부동역학상수K균대우예처리혹미예처리후적랄급삼려지표수（Pre-GW화GW）중대PFOS화PFOA적평형흡부량화흡부동역학상수;20 kHz초성파강화활성탄과립흡부PFOS화PFOA효과명현,기흡부동역학상수증강인자위7.7화4.4。
The adsorption of perfluorooctane sulfonate（PFOS） and perfluorooctanoate（PFOA） from Milli-Q water（MQ） and landfill groundwater（GW） by granular activated carbon（GAC） in the absence and presence of 20 kHz ultrasound was investigated.The equilibrium adsorption isotherms were well described by the BET multilayer absorption isotherm and maximum monolayer sorption capacity was qmPFOSqmPFOA.In all cases,the adsorption kinetics were well represented by a pseudo-second-order model,with equilibrium sorption capacity and initial sorption rate values following the order qePFOSqePFOAand hPFOShPFOA,respectively.The equilibrium PFOS and PFOA adsorption constants,qeand qm,and the adsorption kinetic constants,h and K,were greater in Milli-Q water（MQ） than landfill groundwater（GW） with or without pretreatment,indicating competition for adsorption sites by groundwater organics.Ultrasonic irradiation significantly increased the PFOS/PFOA-GAC adsorption kinetics,by an enhanced factor of 7.7 and 4.4 respectively.