Bisulfite-activated permanganate (PM/BS) process has proven to be a promising method for trace organic contaminants (TrOCs) abatement. However, to our knowledge, most previous studies on PM/BS process were limited in synthetic water at lab-scale. Hence, the performance of TrOCs abatement by PM/BS process was investigated in real waters in this study, and for the first time, its feasibility as a pretreatment process was evaluated at pilot-scale. The lab-scale results indicated that almost all tested TrOCs could be completely removed from pure water, while their removal efficiencies varied widely from ∼20% to ∼90% in real waters. Correlation analysis suggested that TrOCs abatement decreased linearly with increasing concentration of dissolved organic matter (DOM) and halide ions in real waters. The TrOCs with electron-donating groups were more likely to be decomposed in PM/BS process. The PM/BS pretreatment produced MnO₂ and decreased the aromatic signal of the DOM, which enhanced the removal of DOM during subsequent coagulation-sedimentation processes. Comparing with ozonation, chlorination, and permanganate processes, PM/BS process showed some advantages in terms of TrOCs abatement and operating costs. Furthermore, the pilot-scale experiment confirmed that PM/BS process combined with traditional water treatment processes could achieve excellent TrOCs abatement (greater than 84%).

事实证明，亚硫酸氢盐活化的高锰酸盐（PM / BS）工艺是减少有机污染物（TrOCs）的一种有前途的方法。然而，据我们所知，以前大多数关于PM / BS工艺的研究都局限于实验室规模的合成水中。因此，在这项研究中，研究了在真实水中通过PM / BS工艺减排TrOCs的性能，并且首次在中试规模上评估了其作为预处理工艺的可行性。实验室规模的结果表明，几乎所有测试过的TrOCs都可以从纯水中完全去除，而在真实水中，其去除效率则从约20％到约90％不等。相关分析表明，TrOCs的减少随着真实水中溶解有机物（DOM）和卤离子的浓度增加而线性降低。带有给电子基团的TrOCs在PM / BS过程中更容易分解。PM / BS预处理产生的MnO₂降低了DOM的芳香信号，从而在后续的凝沉过程中增强了DOM的去除。与臭氧化，氯化和高锰酸盐工艺相比，PM / BS工艺在减少TrOCs和运行成本方面显示出一些优势。此外，中试规模实验证实，将PM / BS工艺与传统水处理工艺相结合可实现出色的TrOC减排（大于84％）。