Removal of Organic Matter from Landfill Leachate by Advanced Oxidation Processes: A Review

Table 3

O₃, O₃/H₂O₂, and O₃/UV treatments of leachates (updated from Renou et al. [2]).

Initial characteristics of the leachate				BOD/COD	Removal efficiency (%)		O3 (a.g/l) or	H2O2/O3 (g/g)	UV(W)	Reference
COD (mg/L)	BOD (mg/L)	pH	Color; (mgP tCo/l)	After treatment	COD	Color	(b.gO3/g COD)
O3
6500	500	8.1	12,000	0.5	15	90	1.2a			[15]
3096	130	8.2	5759	0.2-0.3	25–50	—	3.0a			[16]
3460	150	8.2	5300	—	48	87	3.0a			[24]
4850 ± 100	520 ± 30	8.2	—	0.25	30	—	1.3–1.5b			[25]
5000	20	—	8300	0.015	33	100	1.7b			[26]
5230	500	8.7	—	0.1	27	—	—			[27]
4850	10	—	—	0.1	33	—	—			[29]
895	43	8.2	—	0.14	28	—	0.76b			[31]
O3/H2O2
5230	500	8.7	—	0.7	48	94	—	H2O2:2 g/L		[27]
2000	—	—	—	—	95	—	3.5b	0.4		[28]
600	—	—	—	—	92	—	3.3b	0.4
2000	160	8.4	—	0.13	92	—	1.5b	0.3		[32]
—	—	8		—	97	—	2.5a	2		[30]
—	—	8		—	70	—		0.5
1360	<5	8.4	—	0.32	93	—	1.5b	0.3		[31]
480	25	7.7	—	0.13	40		0.05–0.5b	0.25-1		[33]
O3/UV
1280	100	2	—	—	54	—			100	[34]
1280	100	2	—	—	47	—			500
2300	210	8	—	—	40	—	1b		15	[32]
430TOC	—	—	—	—	51TOC	—	0.1a		300	[35]
26,000	2920	7.8	—	63	0.32	—	3.5b		1500	[36]
26,000	2920	7.8	—	61	0.35	—	4.7b		1500