Enhanced Cr (VI) removal with Pb (II) presence by Fe2+-activated persulfate and zero-valent iron system

2022 ◽  
pp. 1-21
Author(s):  
Kaijie Pei ◽  
Tingyi Liu
Keyword(s):  
Zero Valent Iron ◽  
Activated Persulfate

scholarly journals Persulfate activation by nano zero-valent iron for the degradation of metoprolol in water: influencing factors, degradation pathways and toxicity analysis

RSC Advances ◽  
2020 ◽  
Vol 10 (35) ◽  
pp. 20991-20999
Author(s):  
Yu-qiong Gao ◽  
Jia Zhang ◽  
Jin-qiang Zhou ◽  
Cong Li ◽  
Nai-yun Gao ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Zero Valent Iron ◽  
Degradation Pathways ◽  
Toxicity Analysis ◽  
Nano Zero Valent Iron ◽  
Persulfate Activation ◽  
Activated Persulfate

The influencing factors, mechanism and toxicity of MTP degradation by nZVI activated persulfate were investigated.

Degradation of p-Aminobenzoic Acid by Zero-Valent Iron Activated Persulfate System

2018 ◽  
Vol 144 (5) ◽  
pp. 04018029 ◽  
Author(s):  
Lanlan Lu ◽  
Pingping Zhai ◽  
Xuan Chen ◽  
Hongjing Li ◽  
Jean-marc Chovelon
Keyword(s):  
Zero Valent Iron ◽  
Aminobenzoic Acid ◽  
Activated Persulfate

Degradation of trichloroethene by nanoscale zero-valent iron (nZVI) and nZVI activated persulfate in the absence and presence of EDTA

2017 ◽  
Vol 316 ◽  
pp. 410-418 ◽  
Author(s):  
Haoran Dong ◽  
Qi He ◽  
Guangming Zeng ◽  
Lin Tang ◽  
Lihua Zhang ◽  
...  
Keyword(s):  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron ◽  
Activated Persulfate

Comparison between UVA- and zero-valent iron-activated persulfate processes for degrading propylparaben

2020 ◽  
Vol 27 (18) ◽  
pp. 22214-22224 ◽  
Author(s):  
Priscila H. Palharim ◽  
Cátia A. L. Graça ◽  
Antonio C. S. C. Teixeira
Keyword(s):  
Zero Valent Iron ◽  
Activated Persulfate

Enhanced dewaterability of sewage sludge with zero-valent iron-activated persulfate oxidation system

2015 ◽  
Vol 72 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Lingling Hu ◽  
Yu Liao ◽  
Chun He ◽  
Wenqi Pan ◽  
Shangkun Liu ◽  
...  
Keyword(s):  
Extracellular Polymeric Substances ◽  
Ph Value ◽  
Three Dimensional ◽  
Bound Water ◽  
Zero Valent Iron ◽  
Molar Ratio ◽  
Persulfate Oxidation ◽  
Potential Benefits ◽  
Sludge Dewaterability ◽  
Activated Persulfate

The potential benefits of zero-valent iron-activated persulfate (Na2S2O8) oxidation in enhanced dewaterability of sludge, along with the associated mechanisms were investigated in this study. The sludge dewaterability was evaluated in terms of specific resistance to filtration (SRF) and water content. Based on these indexes, it was observed that ZVI-S2O82 oxidation effectively improved sludge dewaterability. The optimal conditions to give preferable dewaterability were found when the molar ratio of ZVI/S2O82− was 5:1 and pH value was 3.0. The most important mechanism was proposed to be the degradation of extracellular polymeric substances (EPS) incorporated in sludge flocs and rupture of microbial cells. Three-dimensional excitation–emission matrix fluorescence spectra revealed that the powerful SO4− and ·OH generated from ZVI-S2O82− system destroyed the particular functional groups of fluorescing substances (aromatic protein-like and tryptophan protein-like substances), resulting in the release of bound water and the subsequent enhancement of dewaterability. Therefore, ZVI/S2O82− oxidation is an alternative approach showing great potential to be applied in sludge treatment plants.

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