Affiliation:
1. North University of China
Abstract
Abstract
In this paper, Fenton reagent was used to oxidize 3,4-dinitropyrazole wastewater, and the effects of FeSO4•7H2O dosage, H2O2 dosage, initial pH, reaction time and reaction temperature on the treatment effect were studied.The results show that the oxidation of Fenton reagent can effectively remove 3,4-dinitropyrazole from nitropyrazole wastewater. When the dosage of FeSO4•7H2O is 13.2g•L− 1 and the dosage of H2O2 is 82mL•L− 1. When the initial pH is 2, the reaction time is 120min and the reaction temperature is 30℃, the removal rate of 3,4-dinitropyrazole in the wastewater reaches 97%, and the removal rate of COD reaches 62.9%;The reaction kinetics study showed that the degradation of 3,4-dinitropyrazole in the reaction process conformed to the second-order kinetic model;UV-Vis absorption spectrum analysis showed that the absorbance of wastewater samples before and after treatment decreased significantly.After the Fenton oxidation treatment, the water quality of the wastewater changed and the biodegradability of the wastewater was significantly improved.
Publisher
Research Square Platform LLC
Reference20 articles.
1. Study on the treatment of TNT explosive wastewater by supercritical water oxidation [J];Chang;Energetic Mater,2007
2. Research progress on the degradation of organic pollutants by zero-valent iron-Fenton reagent system [J];Feng J;Chem Environ Prot,2012
3. Optimizing thetreatment of landfill leachate by conventional Fenton and photo-Fenton processes;Hermosilla D;Sci Total Environ,2009
4. Azo dye(2006) degradation using Fenton type processesassisted by UV irradiation: a kinetic study;Kusic H;J Photochem andphotobiology,2006
5. Fenton-like oxidation of 2,4,6-trinitrotoluene using different iron minerals[J];MATTA R;Sci theTotal Environ,2007