@ Carlos, The solution can ...
Published by Niraj Mithani, Director at Aeolus Sustainable Bio Energy Pvt Ltd
@ Carlos,
The solution can be designed with simple setup.
Anaerobic digestion in first stage if systems suits your country's climate.
Followed by Electro-Cogualation --> filtration with mechanical press filters --> Ozone diffussion to settle balance COD / BOD and need be little chlorine (only if required) periodically.
In case anareobic digestion is not working for all seasons then Primary Filtration with 3 Micron press filter followed by Electro-Coagulation followed by Press Filter again and then Electro-Oxidation
Solutions to all complex problems need not be Complex always!