Results and discussions
79
In order to prove the proposed method, a comparison is made between two biological treatments
used during secondary wastewater treatment processes:
 Biological treatment using microalgae: An innovative method
proposed in this study.
 Biological treatment using activated sludge: A conventional method
widely used in wastewater treatment plants.
The criteria for comparing the two treatment processes are summarized in the following table :
Table 22:Results of comparison between microalgae and activated sludge processes.
Sizing
of
wastewater
treatment plant with
Application of Micoalgae,
in Taoura, Souk-Ahras.
Comparison criteria
Result
Refference
Inhabitant equivalent
40662
(Rehamna, 2023)
Surface area
2 to 3 hectares
Purification yield
92,8%
Total
energy
requirement
149 kw
Sizing of a wastewater plant
with the Application of
activated sludge, in Iflissen,
Tizi Ouzou.
Inhabitant equivalent
56355
(Mzyene &Ouali, 2020)
Suface area
4 hectares
Purification yield
90,6%
Total
energy
requirement
461,76 kw
Inhabitant equivalent
422 500
(Hammoudi, 2022)