Table 2: The organic treatment efficiency of landfill leachate by the anaerobic activated sludge process.

ProcessesCOD of leachateRemoval rateReference

UASB5400 mg/L–20000 mg/l80%[16]
UASB8550 mg/L–12500 mg/L80%[17]
UASB12350 mg/L–47800 mg/L80%[18]
UASB3500 mg/L–4200 mg/L76%[19]
Anaerobic MBR2800 mg/L–5000 mg/L95%[20]
Anaerobic MBR13000 mg/L62%[21]
EGSB33000 mg/L85%–90%[22]