【摘要】 用层状氢氧化镁铝的焙烧产物吸附水中苯酚,研究了吸附剂用量、吸附时间、温度、溶液pH值等条件对吸附性能的影响。结果表明,吸附主要发生在90min内,吸附量随着温度的升高而增加。溶液初始pH值对吸附影响较大,pH值在6～11范围内吸附效果较酸性时好。吸附符合Langmiur等温线,饱和吸附量为0.557mg/g。更多还原

【Abstract】 The removal of phenol from aqueous solution by adsorption on calcined layered Magnesium-Aluminum hydroxides was studied.The effects of sorbent dosage,pH value,adsorption time,temperature on adsorption were investigated.The experimental results showed that the adsorption happened in 90min and the concentration decreased as the increasing of the sorbent dosage.pH value had a great influence on the adsorption and high adsorption effect was obtained when pH value was under 6 to 11.The adsorption phenomenon was in conformity with the Langmuir isotherm equation and the adsorption capacity was 0.557mg/g.更多还原