A rotating packed bed with blade packings was used to obtain nanoscale zero-valent iron (nZVI). Polyvinyl alcohol (PVA) was degraded by the nZVI/H₂O₂ process, and the effects of the addition of oxygen, pH, nZVI dosage, and H₂O₂ concentration on this process were determined. The efficiency of degradation of PVA in the presence of air exceeded that in the presence of nitrogen. The efficiency of degradation of PVA under acidic conditions was higher than that under alkaline conditions. The degradation of PVA by the nZVI/H₂O₂ process was optimized at a particular nZVI dosage and H₂O₂ concentration. At pH 3 with an nZVI dosage of 0.005 g/L and an H₂O₂ concentration of 1 × 10⁻⁴ mol/L in the presence of air, the nZVI/H₂O₂ process using the produced nZVI degraded 94% of the PVA in 1 min; this efficiency of degradation was much higher than that (1%) obtained using nZVI that was supplied by Alfa-Aesar.

使用带有叶片填料的旋转填充床来获得纳米级零价铁（nZVI）。聚乙烯醇（PVA）通过nZVI / H ₂ O ₂工艺降解，并确定了添加氧气，pH，nZVI剂量和H ₂ O ₂浓度对该工艺的影响。在空气中PVA的降解效率超过了在氮气中的PVA降解效率。酸性条件下PVA的降解效率高于碱性条件下。在特定的nZVI剂量和H ₂ O _2下，通过nZVI / H ₂ O ₂工艺对PVA的降解进行了优化。专注。在nZVI剂量为0.005 g / L和H ₂ O ₂浓度为1×10 ^-4 mol / L的pH 3下，在空气存在下，使用生产的nZVI的nZVI / H ₂ O ₂工艺会降解94％的1分钟内获得PVA；这种降解效率远远高于使用Alfa-Aesar提供的nZVI获得的降解效率（1％）。