Dear Ahmad, How much is the ...

Dear Ahmad,

How much is the flow in l/s?

You can use many ways to remove the COD and oil.

I will list the following:

1) Aerobic bioreactor as bioclenarer: it will remove and digest oil and COD and could reach 7 ppm COD (+/- 5 ppm).

2) DAF system: It could remove oil and part of the COD too. If the system does not reach teh the needed parameter, you can compliment it with an ozone dosing to oxidize the COD.

3) Microbubble with microfiltration:  It can remove all these parameters (using variable pore modular system instead of membrane filtration). It is strongly recommended. Sometimes the filtration system could be submerged in the micro aeration basin. We can design the system with the needed modules to reach the desired flow.

The micro-filtered water with variable pore technology is strongly recommended before the membrane use.

In this following picture you can see a filtration system.

Whatever system must separate the oil in a first step and the remaining COD in a second step.

Regards,

Orlando D. Gutiérrez Coronado