Treatment of Landfill Leachate Using Activated Sludge Technology: A Review

Table 2

The organic treatment efficiency of landfill leachate by the anaerobic activated sludge process.

Processes	COD of leachate	Removal rate	Reference
UASB	5400 mg/L–20000 mg/l	80%	[16]
UASB	8550 mg/L–12500 mg/L	80%	[17]
UASB	12350 mg/L–47800 mg/L	80%	[18]
UASB	3500 mg/L–4200 mg/L	76%	[19]
Anaerobic MBR	2800 mg/L–5000 mg/L	95%	[20]
Anaerobic MBR	13000 mg/L	62%	[21]
EGSB	33000 mg/L	85%–90%	[22]