Waste water treatment - Activated Sludge design

[AJ95]

So i'm designing a plant that manufactures interferons. I've completed a majority of the plant and now i'm left with treating the waste water of the system.

I am required to calculate the amount of oxygen produced by all the substrates in the waste water and to design a settler/clarifier.

I'm planning to combine all the streams that I regard as waste into one which will include the following:
- Yeast extract, Pepton, Glycerol, Phosphoric acid, Calcium Sulphate, Ammonium Sulphate, Sodium Azide and various others.

As there are a lot of components, how would I go about calculating the oxygen produced?

Any help would be much appreciated.

Thanks!

 

[moltenmetal]

Are you sure you're not a student?

Clearly you need to calculate how much oxygen will be CONSUMED, not produced...

 

[bimr]

The practical approach would be to obtain the information from a similar facility that is already in operation. Lacking that, you would make a mock water, then conduct a bench scale test.

 

[AJ95]

I meant consumed/dissolved sorry and there is not much literature I can find on this. Would I work the oxygen consumed by each component of the affluent stream and make a total?

 

[bimr]

That is one way to do it. A better method was posted earlier.

Note that the inorganics you have listed above do not have an oxygen demand.

 

[AJ95]

Are you referring to the method about obtaining information from a similar facility?

Also is there a site I could go to in order to find similar facilities?