發(fā)布時(shí)間：2019-05-18 21:36

【摘要】：采用含雙酚酸聚芳醚砜吸附劑對(duì)水中鉛離子進(jìn)行固定床吸附,探討了水中鉛離子初始質(zhì)量濃度、體積流量、初始pH和吸附劑質(zhì)量對(duì)穿透曲線的影響。采用Yoon-Nelson模型和Thomas模型對(duì)動(dòng)態(tài)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行線性擬合分析,研究了高分子聚合物吸附劑對(duì)水中鉛離子的動(dòng)態(tài)吸附性能。吸附后的吸附劑用0.2mol/L的鹽酸再生多次循環(huán)吸附使用。結(jié)果表明,聚芳醚砜吸附劑能夠有效去除水中鉛離子,溶液體積流量和質(zhì)量濃度對(duì)流出曲線有較大的影響,飽和吸附量隨著初始質(zhì)量濃度的增大而增加,隨體積流量的增大而減小;穿透時(shí)間隨初始質(zhì)量濃度和體積流量的增大均減小,不同條件下的線性相關(guān)系數(shù)在0.94~0.98,說明Yoon-Nelson模型和Thomas模型都可以描述傳統(tǒng)曲線,而且聚合物重生吸附容量變化不大,可以重復(fù)多次利用。
[Abstract]:Lead ion in water was adsorbed in fixed bed by polyaryl ether sulfone adsorbents containing bisphenol acid. The effects of initial mass concentration of lead ion, volume flow rate, initial pH and adsorbents mass on the penetration curve were discussed. The dynamic adsorption properties of polymer adsorbents for lead ions in water were studied by linear fitting analysis of dynamic experimental data by Yoon-Nelson model and Thomas model. The adsorbed adsorbents were recycled with hydrochloric acid of 0.2mol/L for many times. The results show that Poly (aryl ether sulfone) adsorbents can effectively remove lead ions from water, and the volume flow rate and mass concentration of the solution have great influence on the outflow curve, and the saturated adsorption capacity increases with the increase of the initial mass concentration. It decreases with the increase of volume flow rate. The penetration time decreases with the increase of initial mass concentration and volume flow rate, and the linear correlation coefficient is 0.94 鈮，

本文編號(hào)：2480356