Performance of a novel up-flow electrocatalytic hydrolysis acidification reactor (UEHAR) coupled with anoxic/oxic system for treating co*king wastewater (2024)

缺氧水域废水化学水解环境科学环境化学废物管理制浆造纸工业环境工程有机化学工程类

作者

Jian Dong,Zhaobo Chen,Fei Han,Dongxue Hu,Hui Ge,Bei Jiang,Jitao Yan,Songlin Zhuang,Yifan Wang,Shiming Cui,Zhibo Liang

出处

期刊：Water Research [Elsevier]
日期：2024-04-01 卷期号：: 121670-121670

链接

nih.govdoi.org

标识

DOI：10.1016/j.watres.2024.121670

摘要

In this study, the performance of a novel up-flow electrocatalytic hydrolytic acidification reactor (UEHAR) and anoxic/oxic (ANO2/O2) combined system (S2) was compared with that of a traditional anaerobic/anoxic/oxic (ANA/ANO1/O1) system (S1) for treating co*king wastewater at different hydraulic retention time (HRT). The effluent non-compliance rates of chemical oxygen demand (COD) of S2 were 45%, 35%, 25% and 55% lower than S1 with HRT of 94, 76, 65 and 54h. The removal efficiency of benzene, toluene, ethylbenzene and xylene (BTEX) in S2 was 10.6±2.4% higher than that in S1. The effluent concentration of Volatile phenolic compounds (VPs) in S2 was lower than 0.3mg/L. The dehydrogenase activity (DHA) and adenosine triphosphate (ATP) of O2 were enhanced by 67.2±26.3% and 40.6±14.2% compared with O1, 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 S2 had extraordinary microbial activity, stable pollutant removal ability, and transcendental effluent compliance rate.

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