In this study, the performance of a novel up-flow electrocatalytic hydrolytic acidification reactor (UEHAR) and anoxic/oxic (ANO/O) combined system (S) was compared with that of a traditional anaerobic/anoxic/oxic (ANA/ANO/O) system (S) for treating coking wastewater at different hydraulic retention time (HRT). The effluent non-compliance rates of chemical oxygen demand (COD) of S were 45 %, 35 %, 25 % and 55 % lower than S with HRT of 94, 76, 65 and 54 h. The removal efficiency of benzene, toluene, ethylbenzene and xylene (BTEX) in S was 10.6 ± 2.4 % higher than that in S. The effluent concentration of volatile phenolic compounds (VPs) in S was lower than 0.3 mg/L. The dehydrogenase activity (DHA) and adenosine triphosphate (ATP) of O were enhanced by 67.2 ± 26.3 % and 40.6 ± 14.2 % compared with O, respectively. Moreover, COD was used to reflect the mineralization index of organic matter, and the positive correlation between COD removal rate and microbial activity, VPs, and BTEX was determined. These results indicated that S had extraordinary microbial activity, stable pollutant removal ability, and transcendental effluent compliance rate.

中文翻译：

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新型上流式电催化水解酸化反应器（UEHAR）与缺氧/好氧系统耦合处理焦化废水的性能


在这项研究中，新型上流式电催化水解酸化反应器（UEHAR）和缺氧/好氧（ANO/O）组合系统（S）的性能与传统厌氧/缺氧/好氧（ANA/ANO/ O)以不同水力停留时间(HRT)处理焦化废水的系统(S)。 S的出水化学需氧量(COD)不达标率比HRT为94、76、65和54 h的S分别降低了45%、35%、25%和55%。 S中苯、甲苯、乙苯和二甲苯(BTEX)的去除率比S中高10.6±2.4%。S中挥发性酚类化合物(VPs)的出水浓度低于0.3mg/L。与O相比，O的脱氢酶活性（DHA）和三磷酸腺苷（ATP）分别增强了67.2±26.3%和40.6±14.2%。此外，用COD来反映有机质的矿化指数，确定COD去除率与微生物活性、VPs、BTEX呈正相关关系。这些结果表明S具有非凡的微生物活性、稳定的污染物去除能力和超凡的出水达标率。