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Enhanced removal of TCE from drinking waters using reverse stratified tapered adsorbers

机译：使用反向分层锥形吸附器增强饮用水中三氯乙烯的去除

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This paper evaluates the performance efficiency of two fixed bed granular activated carbon (GAC) adsorbers for the removal of trichloroethylene (TCE) from drinkign waters. A novel fixed bed system called the reverse stratified tapered adsorber (RSTA) is compared experimentally and using model simulations to the conventional normally stratified cylindrical adsorber (SCA).Laboratory models of RSTA and SCA were operated at identicla TCE influent concentration,mean flow velocities,flwo rates and carbon loading conditiosn.Both RSTA and SCA were oeprated in the down-flow mode.The RSTA consisted of a tapered glass column with diameter increasing in the flow direction and five different GAC particle sizes (772 #um#m - 1539 #um#m) arranged such that the particle diameter decreased in the flow direction.The SCA consisted of a cylindrical glass column with particle size increasing in the flow direction.
机译：本文评估了两种固定床颗粒活性炭（GAC）吸附器从饮用水中去除三氯乙烯（TCE）的性能效率。通过实验和模型模拟，将新型固定床系统称为反向分层锥形吸附器（RSTA）与常规的正常分层圆柱形吸附器（SCA）进行了比较。RSTA和SCA的实验室模型在相同的TCE进水浓度，平均流速，流量和碳载量条件.RSTA和SCA均在下流模式下运行.RSTA由锥形玻璃柱组成，其直径沿流向增加，并且具有五种不同的GAC粒径（772＃um＃m-1539＃ um＃m）排列，以使粒径在流动方向上减小.SCA由圆柱形玻璃柱组成，其粒径在流动方向上增大。

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