Corrigendum to ‘Metagenomic analysis of aromatic ring-cleavage mechanism in nano-Fe₃O₄@activated coke enhanced bio-system for coal pyrolysis wastewater treatment’ [J. Hazard. Mater. 414 (2021) 125387] (Journal of Hazardous Materials (2021) 414, (S0304389421003502), (10.1016/j.jhazmat.2021.125387))

In the article by Zheng et al. (2021), authors have some clerical errors on carriers’ dosage and microbial metabolic pathway. In detail, the errors are as following: (1) The unit of carrier dosage was g/L rather than mg/L, in Section 2.2. Sludge domestication and operational strategies (page 2). The wrong expression is “Among them, R0/L0 was operated as controlled reactors without adding carriers or with 1 mg/L LAC, while L1-L3 was respectively added with 1–3 mg/L nano-Fe₃O₄@LAC.” But the right expression is “Among them, R0/L0 was operated as controlled reactors without adding carriers or with 1 g/L LAC, while L1-L3 was respectively added with 1–3 g/L nano-Fe₃O₄@LAC.” Other contents in the paper about the unit of carrier dosage should be also replaced by “g/L”.(2) The dominated anaerobic ring-cleavage pathway of aromatic compounds according to Fig. 5 should be anaerobic benzoate degradation pathway mediated by 2-ketocyclohexanecarboxyl-CoA hydrolase. The wrong expression is “Benzoyl-CoA degradation pathway was also evidenced as predominated process in anaerobic reaction.” in Section 3.3.1 in page 7.The authors would like to apologise for any inconvenience caused.