Engr. Mansoor Ahmed is ...

Engr. Mansoor Ahmed is correct. Generally, the food process wastewater is fully biodegradable and very easy to be treated, although its organic load is high. Normally the treatment process starts from an anaerobic digestion that can generate energy, rather than consumes energy. Depends on the effluent discharge requirement, you may require a further treatment. If the effluent quality of anaerobic digestion doesn’t meet the discharge target, then an activated sludge process (via aerobic treatment) will be required. If the effluent reuse is required, a MF-RO will be the final process.