Abstract
This experiment adopts the hypochlorite oxidation method to constantly synthesize potassium ferrate. Under the condition of micropolluted source water pH and on the basis of naphthalene, phenanthrene, and pyrene as research objects, the effects of different systems to remove aromatic hydrocarbons were studied. Various oxidation systems to remove phenanthrene intermediate are analyzed and the detailed mechanisms for removal of phenanthrene are discussed. The study found that the main intermediate of potassium ferrate system to transform phenanthrene is 9,10-phenanthraquinone and its area percentage reached 82.66%; that is, 9,10-phenanthraquinone is the key entity to remove phenanthrene.
Highlights
Ferrate is an ideal water treatment reagent
The peak is considered as the infrared characteristic peak of potassium ferrate
The transformation oxidation process of potassium ferrate for aromatic hydrocarbons mainly occurred in the initial 5–10 minutes
Summary
Ferrate is an ideal water treatment reagent. Ferrate in sewage purification shows excellent oxidation, adsorption, and flocculation to remove contaminants, and it has stronger sterilization effect than chlorine department oxidant [1,2,3]. Ferrate is the best oxidant replacement for chlorine source as water purification agent. Ferrate as the positive active material of the green power supply has high electrode potential and capacitance [4,5,6]. This unique feature makes ferrates environmentally friendly green oxidation reagents with dual function
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