Adsorption isotherm of activated alumina and bone char can be described by langmuir adsorption isotherm in the form qe = 0 . 72cy ( l + 0 . 074ce ) and freundlich isotherm in the form qe = 0 . 88ce1 / 1 . ' 94 respectively . continuous - flow column experiments show there have higher removal capacity for activated alumina and bone char when empty - bed contact time was controlled within 12 ~ 15min and about 15min separately 对可利用吸附容量和实际利用吸附容量的理论分析说明,连续处理活性氧化铝停留时间控制在12 15min较好,此时吸附容量利用率较高,约为80 ,骨炭停留时间控制在15min较好,吸附容量利用率约为75 。