求正确翻译。。。莫翻译器。。。求大虾了。。。

显示全部楼层 · 2011-6-2 13:53:57

The results of adsorption kinetic measurements are shown in Fig. 5. These indicate that sorption onto BOF slag at pH 6.0 reached equilibrium after about 30 min, with no evidence of further adsorption up to 24 h. Available adsorption results reveal that the up take of adsorbate species is fast at the initial stages of the contact period, and thereafter, it becomes slower near the equilibrium. Inbetween these two stages of the up take, the rate of adsorption is found to be nearly constant. This is obvious from the fact that a large number of vacant surface sites are available for adsorption during the initial stage, and after a lapse of time, the remaining vacant surface sites are difficult to be occupied due to repulsive forces between the solute molecules on the solid and bulk phases. Figs. 5 and 6 show the plot of metal removal rate versus contact
time in single- and multi-element solution. All curves of metals adsorption appear nearly similar trend. At first 30min, metals are adsorbed rapidly. For example, at 30 min, around 80% of the metals are adsorbed in single-element system except Zn. And final
equilibrium concentration of metals increases up to 85%. This initial fast reaction is characteristic of heavy metal sorption on BOF slag and has been attributed on adsorption on high affinity surface sites or on sites with higher bonding strength with the metal 。However, some differences are observed between the systems. As
compared to single-element system, the amount of single metal adsorbed decreases in the multi-element system. This is attributed on the effect of competitive adsorption of metals. Metals adsorbed are similar and higher in single-element system, while lower in
multi-element system. The selectivity is Cu > Pb > Cd > Zn.

千问 · 2011-6-2 13:53:57

吸附动力学测量的结果显示在图5。结果表明,转炉炉渣吸附到6.0达到平衡后在pH值约30分钟,没有证据表明,进一步吸附到24小时。结果显示,可吸附起来带的快讯物种是快于初始阶段的接触的时期,此后,它的速度会变慢附近的平衡。会使这两个阶段中,这一比例吸附带发现几乎不变。这是显而易见的从这一事实中,大量的茫然地点是可用的表面吸附在初始阶段,一段时间后,剩余的空表面难以占领网站之间由于斥力溶质分子在固和大量的阶段。无花果。5、6显示金属去除率的情节与接触在单一时间——而多元的解决方案。所有的金属吸附曲线出现类似的趋势几乎。起初30分钟,金属的吸附能力迅速。比如,在30分钟内,大约80%的金属都是吸附在single-element系统除锌。和最终...

千问 · 2011-6-2 13:53:57

吸附动力学测量的结果显示在图5。结果表明,转炉炉渣吸附到6.0达到平衡后在pH值约30分钟,没有证据表明,进一步吸附到24小时。结果显示,可吸附起来带的快讯物种是快于初始阶段的接触的时期,此后,它的速度会变慢附近的平衡。会使这两个阶段中,这一比例吸附带发现几乎不变。这是明显的f...

千问 · 2011-6-2 13:53:57

吸附动力学测量的结果显示在图5。结果表明,转炉炉渣吸附到6.0达到平衡后在pH值约30分钟,没有证据表明,进一步吸附到24小时。结果显示,可吸附...