Control del proceso de ciclos alternados  para la eliminación eficiente de  contaminantes en una edar

Authors

In this work a rule-based control strategy is

proposed in order to update the management

of a Wastewater Treatment Plant by means of

the alternating aeration/non-aeration process

with the aim of improving the removal rate of

the pollutant nitrogen and phosphorous the

plant receives along with a decrease in the

electric energy consumption. This process is to

be carried out without jeopardizing the success

in removing the organic matter and suspended

solids the current regulations impose about water

quality driven into surface streams. The control

system has been tested in an actual plant and

an efficiency of 85 % in nitrogen removal was

obtained as against 35 % previously reached.

For phosphorous the removal efficiency raised

from 13% to 55%. An electric energy saving of

31% was also reached. On the other hand the

organic matter removing rate showed a little

increase from 90% to 92%. A reduction in sludge

generation along with an improvement in the

stability of microorganisms processing pollutants

have been also reported, two facts that improve

working and maintenance processes.