Synthesis of calcium peroxide nanoparticles as an innovative reagent for in situ chemical oxidation

Enhancement of waste activated sludge dewaterability using calcium peroxide pre-oxidation and chemical re-flocculation

“…And its R 2 and reaction rate were respectively 0.974 and 0.481 mg/(L$min). Reaction Equations (7) and (8) can be used to illustrate the process of CaO 2 solubilization (Khodaveisi et al, 2011):…”

Multicatalytic properties of nanoparticle CaO2 synthesized by a novel, simple and economical method for wastewater treatment

“…Interestingly, the Ca(NO 3 ) 2 precursor can be used to prepare nanosized CaO 2 without any chelating agent or capping agent or stabilizer. Particle size of these powders was smaller than using some conventional precursors such as CaCl 2 [25] and CaOH 2 [8] and was close to the CaO 2 prepared using CaCl 2 , but with PEG as a stabilizer [18]. Morphology of the particles was further studied by a TEM technique.…”

“…H 2 O 2 would slowly release from CaO 2 in the presence of moisture. CaO 2 has been extensively used in medicine, aquaculture and agriculture [18][19][20][21][22]. Disinfectant for water treatment has been validated recently.…”

“…Possible calcium compound precursors, such as Ca(OH) 2 [2] and CaCl 2 [18,23], are normally chosen, as shown in Eq. (2).…”

Degradation of 2,4-dichlorophenol by nanoscale calcium peroxide: Implication for groundwater remediation

“…A variety of methods have been employed to generate HO Å in aqueous systems, including H 2 O 2 /Fe 2+ , H 2 O 2 /UV, and O 3 /UV. However, these methods were generally limited to relatively strict environmental conditions and narrow pH ranges [15][16][17]. Recently, the calcium peroxide (CaO 2 ) based AOP for remediating contaminated soil and groundwater has attracted much attention which showed significant effectiveness for treating various contaminants [15,[18][19][20].…”