Posted Tue, 13 Jun 2017 20:42:37 GMT by Yohannis Mitiku student
Hi all,

I need your help /suggestion please respond.

In anaerobic digestion model ammonia inhibition as low as 12% (very bad). Soluble concentration of acetate in the effluent is very high when compare with others. I think the ammonia inhibits uptake of acetate and reduces the acetate degradation. How I overcome this problem? 

Thanks
Posted Wed, 14 Jun 2017 06:40:47 GMT by Enrico Remigi WEST Product Owner
[quote author=yohannis link=topic=20185.msg26094#msg26094 date=1497386557]
I think the ammonia inhibits uptake of acetate and reduces the acetate uptake
[/quote]
I would also assume this is the reason why acetate does not get degraded.
Is it only the ammonia inhibition factor that affects the acetate uptake? I mean: are all the other inhibition and 'Monod' terms inactive, i.e. ~1 ?
You need to backtrack the source of such high ammonia inhibition (low inhibition term) and potentially of the other terms negatively affecting acetate uptake.
Posted Wed, 14 Jun 2017 06:59:30 GMT by Yohannis Mitiku student
Thanks for your replay Enricho.

All other inhibition terms are close to 1. pH is 7.3.  I couldn't verify other factors which affet the acetate degradation except ammonia inhibition. Do you have any other suggestions?

thanks
Posted Wed, 14 Jun 2017 11:33:05 GMT by Enrico Remigi WEST Product Owner
Based on the elements provided here, no, I cannot think of anything else.

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