Removal of reactive brilliant red X-3B by a weak magnetic field enhanced Fenton-like system with zero-valent iron.

ABSTRACT: The effect of a weak magnetic field (WMF) on the removal of reactive brilliant red X-3B (X-3B) by zero-valent iron (ZVI)/H₂O₂ was studied. The optimum conditions for the removal of X-3B by the ZVI/H₂O₂/WMF system were as follows: pH = 4.0, X-3B was 50 mg L^-1, H₂O₂ was 8 mM, and ZVI with particle size of 20 μm was 0.5 g L^-1. The X-3B decolorization rate could reach 99.41% in 10 minutes. The superposed WMF increased the working pH of ZVI from 3.0 to 4.0. The main part of ZVI/H₂O₂ removal kinetics of X-3B followed the zero order rate law. In this study, the removal effect of X-3B by pre-magnetization ZVI was not as good as that of real-time magnetization, but it was better than the re

SUBMITTER: Liang L 

PROVIDER: S-EPMC9056616 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature