摘要
通过静态吸附实验,研究了不同条件下H103大孔树脂对水中苯酚的吸附性能。结果表明,树脂对水中苯酚的吸附速率较快,60 min内基本达到平衡。树脂对水中苯酚的吸附量随其初始浓度的增加而增加,并呈线性关系。吸附数据采用Freundlich吸附等温线模型拟合结果较好。动态处理某精细化工含酚废水结果表明,室温下固定床流速为3 BV/h时,废水中苯酚去除率接近91.9%,COD去除率≥69.3%。饱和树脂采用5%NaOH溶液再生,苯酚再生率为86.5%,有效实现了酚的回收。
The static adsorption experiment of phenol by H103,a macroreticular resin,was carried out under different conditions.The results showed that macroreticular resin for adsorption of phenol from aqueous solution adsorbed very quickly within 60 min and reached basic balance.With the mass concentration increasing the static adsorption capability for adsorption of phenol by macroreicular resin increased.The adsorption data could be well fitted by the Freundlich adsorption isotherm model.Dynamic treating of a fine chemical wastewater containing phenol was investigated.Results showed that the removal efficiency of phenol and COD in wastewater was near 91.9% and ≥ 69.3%,respectively,at room temprature and a fix-bed flow rate of 3 BV/h.When the saturated resin regenerated by 5% NaOH solution,the phenol regeneration rate can reach 86.5%,which achieved the recovery of phenol effectively.
出处
《环境工程学报》
CAS
CSCD
北大核心
2011年第8期1811-1814,共4页
Chinese Journal of Environmental Engineering
关键词
大孔树脂
苯酚
吸附等温线
化工废水
macroreticular resin
phenol
adsorption isotherm
chemical wastewater
