Decomposition and Mineralization of Dimethyl Phthalate in an Aqueous Solution by Wet Oxidation

Table 2

Comparison with some results of others for the decomposition of DMP via various methods.

Study	Method	Result
Bauer et al. [1]	Anaerobic process in field municipal landfill leachates	DMP was completely hydrolysis to phthalic acid but no cleavage for aromatic ring at different pH values
Wang et al. [16]	Electro-Fenton methods by electrodes: traditional graphite cathode (G), carbon nanotube sponge (CNTS), and graphite gas diffusion electrode (GDE)	: G, 15%; GDE, 35%; CNTS, 75%
Souza et al. [17]	Electrochemical oxidation on F-doped Ti/β-PbO2 anode in filter press reactor	DMP was completely decomposed under electrolyte Na2SO4 and low current densities (10 mA), = 25%
Chang et al. [11]	Catalytic ozonation (OZ) in high-gravity rotating packed bed (HG) with catalyst (Pt/-Al2O3) and ultraviolet (UV) (mix of UV-C, UV-B, and UV-A with 200–280, 280–315, and 315–400 nm and with intensities of 3.73, 1.59, and 3.99 W m^−2)	at 50 min: near 100% for Pt-OZ and UV-Pt-OZ; at 1 h: 45% (OZ); 56% (UV-OZ); 57% (Pt-OZ); 68% (UV-Pt-OZ)
Chen et al. [13]	Photocatalytic degradation using magnetic poly(methyl methacrylate) (mPMMA) and UV 254 nm	at 4 h: 55–100% via TiO2/mPMMA (C1); 68–100% via Pt-TiO2/mPMMA (C2); at 4 h: 7.5–37.5 % via C1; 11–64% via C2
Chen et al. [19]	Photocatalytic ozonation using TiO2, Al2O3, and TiO2/Al2O3 catalysts	at 30 min: 2–22% without O3, 90–100% with O3. : 16–93%, 32–97% at 1, 4 h
Chen et al. [12]	Photocatalysis using magnetic Pt-TiO2/mPMMA	UV 185 nm contributes better removal efficiency than UV 254 nm
This study	Wet oxygen oxidation	and are 93 and 36% at Nr = 500 rpm,  K,  MPa, and  min