T E L E M A C TELEMonitoring and Advanced teleControl of high yield wastewater treatment plants' Pro

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WP 3 Advanced control
O.BernardINRIA Sophia
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Objectives of WP3

• Provide a series of validated models for

• Ordinary working conditions

• Process failures

• Process start-up.

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Planning of WP3
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General presentation of WP3 during the 3 first
months

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• WP3.1 Process modelling with respect
• to the process working mode

• Participants INRIA 9.5, LEMAIRE 2, UDG 6.5

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WP3.1 Model specification

• The NORMAL models can be used to
• regulate the COD under a maximum value
  depollution

• regulate the ratio qM/qC cogeneration

• regulate the ratio VFA/Tot. Alkalinity
  stability

• verify that the process is working well, that
  the VFA are not accumulating and especially that
  no propionate is present. monitoring

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WP3.1 Model specification

• ? The models must be able to predict
• the methane and CO2 flow rates.

• the VFA

• one of the models must be able to deal with
  propionate.

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WP3.1 Model specification

• The ABNORMAL models can be used to
• base a controller which will make the system go
  back to normal working recover

• monitor accurately the system close monitoring

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WP3.1 Process modelling.

• Review the existing models in the literature

? The model designed during AMOCO was
validated 4 years ago
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WP3.1 Process modelling

• Test 4 years later on new data from INRA

model
model
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WP3.1 Process modelling

• Test 4 years later on new data from INRA

model
time
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WP3.1 Process modelling
We want a set of (10) models
AMOCO
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Model extension

• Initial hypothesis 6? pH?8

? Now the chemical equations are valid for any
pH!
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Model simplification for normal working mode

• No biomass inhibition
• Biomass evolution is slow

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Questions
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• UASB

• CSTR

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Open questions

• Number of reasonable failures to represent in the
  models ??

? WP1.1 Lemaire Allied Domecq
? Action list WP1-6 R.Farina
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Open questions

• Number of possible process architectures 4 ?