Abstract：
Coking wastewater contains high concentrations of toxic and low biodegradable organics, causing long hydraulic retention times for its biological treatment process. This study developed a pretreatment method for coking wastewater by using activated carbon fiber (ACF) activated peroxymonosulfate (PMS) to improve the treatment performance of subsequent biological post-treatment process, sequencing batch reactor (SBR). The results showed that, after optimization of treatment processes, the removal efficiency of chemical oxygen demand (COD), phenol, and chroma in coking wastewater reached to 76, 98, and 98%, respectively, with a significantly improved biodegradability. Compared with the sole SBR system without any pretreatment that could remove 73% of COD, the ACF/PMS+SBR system removed over 97% of COD in coking wastewater. Moreover, this pretreatment method facilitated the growth of functional bacteria for organics biodegradation, indicating its high potential as a highly efficacious pretreatment strategy to improve the overall treatment efficiency of coking wastewater.
摘要：
焦化废水含有高浓度的有毒和低生物降解的有机物，导致其生物处理过程水力停留时间长。本研究开发了一种利用活性炭纤维(ACF)活性过氧单硫酸盐(PMS)对焦化废水进行预处理的方法，以提高后续生物后处理工艺的处理性能。序批式反应器(SBR)。结果表明,优化处理工艺后，化学需氧量(COD)的去除效率，苯酚,焦化废水中的色度达到76％，98％和98％，分别,具有显著改善的生物降解性。与单独的SBR系统相比，没有任何预处理，可以去除73%的COD，ACF/PMS+SBR系统去除焦化废水中97%以上的COD。此外，这种预处理方法促进了功能细菌的生长，用于有机物的生物降解，表明其作为一种高效的预处理策略的潜力，以提高焦化废水的整体处理效率。
