HomeForumMain ForumSTAN ModelsNitrogen generation in anaerobic digestion
Welcome, Guest
Username: Password: Remember me

TOPIC: Nitrogen generation in anaerobic digestion

Nitrogen generation in anaerobic digestion 3 years 4 months ago #75

  • pklein
  • pklein's Avatar
  • OFFLINE
  • Fresh Boarder
  • Posts: 1
  • Karma: 0
Hello,

i would like to model the ammonia flux in a wastewater treatment plant. I have already set up the model and it works. When it comes to anaerobic digestion there is a formation of ammonia due to nitrogen conversion in the process itself. How can I model such a "generation of mass"?

Thanks in advance!
Last Edit: 3 years 4 months ago by pklein.
The administrator has disabled public write access.

Nitrogen generation in anaerobic digestion 3 years 4 months ago #76

  • adminST
  • adminST's Avatar
  • OFFLINE
  • Administrator
  • Posts: 62
  • Thank you received: 13
  • Karma: 4
Due to the law of mass conservation, in material flow analysis mater is generally not allowed to appear or disappear within a process. So the formation of ammonia from nitrogen can only be modelled by adding an additional import flow to your model. Note, that if you also want to model the nitrogen flows (on a nitrogen substance layer) you have to add an additional export flow that is needed to model the "disappearing" (transformed) nitrogen. On the layer of ammonia this "transformed nitrogen" export flow is zero while on the layer of nitrogen the "formed ammonia" import flow is zero.
The administrator has disabled public write access.
The following user(s) said Thank You: yoonsp
Time to create page: 0.484 seconds
Free business joomla templates