Coimbra Ricardo N, Escapa Carla, Otero Marta
Department of Applied Chemistry and Physics, Institute of Environment, Natural Resources and Biodiversity (IMARENABIO), Universidad de León, 24001 León, Spain.
Centre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3800 Aveiro, Portugal.
Polymers (Basel). 2018 Aug 29;10(9):958. doi: 10.3390/polym10090958.
The performance of a polymeric resin (Sepabeads SP207, from Resindion, Binasco, Italy) was compared with that of an activated carbon (GPP20, from Chemviron Carbon, Feluy, Belgium) in the adsorption of acetaminophen and ibuprofen from either ultrapure or waste water. Kinetic and equilibrium adsorption experiments were carried out under batch operation conditions, and fittings of the obtained results to different models were determined. The kinetic experimental results fitted the pseudo-first and -second order equations, and the corresponding kinetic rates evidenced that the pharmaceuticals adsorption was faster onto GPP20 than onto Sepabeads SP207, but was mostly unaffected by the aqueous matrix. The equilibrium results fitted the Langmuir-Freundlich isotherm model. The corresponding maximum adsorption capacity (, mg) was larger onto GPP20 (202 mg g ≤ ≤ 273 mg g) than onto the polymeric resin (7 mg g ≤ ≤ 18 mg g). With respect to the parameter (mg g (mg L)), which points to the adsorbent-adsorbate affinity, greater values were determined for the pharmaceuticals adsorption onto GPP20 than onto Sepabeads SP207. For both adsorbents and pharmaceuticals, neither or were affected by the aqueous matrix.
将一种聚合树脂（意大利比纳斯科市Resindion公司的Sepabeads SP207）与一种活性炭（比利时费吕市Chemviron Carbon公司的GPP20）对乙酰氨基酚和布洛芬从超纯水或废水中的吸附性能进行了比较。在间歇操作条件下进行了动力学和平衡吸附实验，并确定了将所得结果拟合到不同模型的情况。动力学实验结果符合拟一级和拟二级方程，相应的动力学速率表明，药物在GPP20上的吸附比在Sepabeads SP207上更快，但在很大程度上不受水相基质的影响。平衡结果符合Langmuir-Freundlich等温线模型。GPP20上相应的最大吸附容量（，mg）（202 mg g≤≤273 mg g）比聚合树脂（7 mg g≤≤18 mg g）上的更大。关于指向吸附剂-吸附质亲和力的参数（mg g（mg L）），药物在GPP20上的吸附所确定的值比在Sepabeads SP207上的更大。对于两种吸附剂和药物，或均不受水相基质的影响。
