Removal of Refractory Organics from Biologically Treated Landfill Leachate by Microwave Discharge Electrodeless Lamp Assisted Fenton Process

Table 2

Concentrations of polycyclic aromatic hydrocarbons in biologically treated landfill leachate and after different Fenton-based treatments (g L⁻¹).

Polycyclic aromatic hydrocarbons	Structure	Raw leachate	Fenton	UV-Fenton	MDEL-Fenton
2-Vinylnaphthalene		0.55 0.24	0.10 ± 0.04	0.03 ± 0.01	N.D.
Naphthalene		0.41 ± 0.15	0.26 ± 0.16	0.14 ± 0.01	0.05 ± 0.02
1-Methylphenanthrene		0.16 ± 0.03	0.09 ± 0.04	0.06 ± 0.01	N.D.
Acenaphthylene		0.19 ± 0.07	0.10 ± 0.04	0.09 ± 0.04	0.05 ± 0.02
Acenaphthene		4.78 ± 1.23	0.17 ± 0.07	0.16 ± 0.11	0.10 ± 0.03
Fluorene		4.62 ± 1.43	0.19 ± 0.04	0.09 ± 0.04	0.06 ± 0.02
Phenanthrene		0.24 ± 0.13	N.D.	N.D.	N.D.
Anthracene		3.29 ± 0.16	0.27 ± 0.07	0.19 ± 0.05	0.05 ± 0.02
Fluoranthene		0.84 ± 0.13	0.05 ± 0.01	0.11 ± 0.03	N.D.
1-Methylpyrene		0.11 ± 0.05	N.D.	N.D.	N.D.