Anaerobic treatment system for palm oil mill effluent

We are looking for a treatment technology with the smallest footprint possible for palm oil mill effluent in Indonesia.

The wastewater parameters are:

• COD : 50000ppm
• TSS : 20000ppm
• FOG : 5000
• PH : 4-5

Please tell us about which treatment system would be perfect for us with above specifications. 

Expected flowrate is 360-400m3/day