General introduction
2
The reuse of purified water, and the exploitation of microalgae biomass, are prospects
from which farmers can benefit from.
My study will be organized into the following chapters:
 The first chapter provides on the first part an overview of generalities about microalgae,
their classification, cultivation and applications, while on the second part it provides a
general description of wastewater treatment processes, the composition of this water, its
origins and the use of microalgae in its treatment.
 The second chapter, we pass to the Methodology where i give a presentation of the study
area, the methods of calcculation of the pollutant and hydraulic loads and the sizing of
the various compartments of the proposed treatment plant.
 The third chapter, will be devoted to results and discusion of the necessary calculations
we need for sizing the WWTP, a comparison between the proposed wastewater
treatment process and activated sludge, and the final result in the form of a Threedimensional plan.