As a result of increased environmental awareness and interest in the effective protection
of the environment from pollution, the restrictions have increased on the disposal of
wastewater, and the need to the treatment plants has arisen to treat the
wastewater prior to
disposal in water bodies, whether water from either large or small communities. As a result of
the importance of these facilities and cost of material massive construction, operation and
maintenance. In order to facilitate the design process and calculate the initial cost it was issued
some software that helps engineer in the design of the various parts of the station, and in order
to choose the equipments and comparison between several alternatives in objective ways to
choose the most appropriate. Some of these programs are dynamics. It has the ability to
simulate the work of the treatment plant along the time and predict its efficiency and
performance. STOAT is a software that aims to model and simulate wastewater and industrial
wastewater treatment plant, and it is one of the newest technology that uses the latest
developments in process modelling, simulation and a wide range of tools that simplifies the
model building and simulation and give the results in graphics and tables, allowing us to
examine the complex interactions between the various units within the station by interactive
and dynamic methods and this is important for the effective design, operation and management
of wastewater treatment plants. Hence, we take the coastal area as a case study where there are
number of modern wastewater treatment plants of small agglomeration and is being work, as
Kherbet al-Maaze wastewater treatment plant in Tartous. Using STOAT, the study shows a
good efficiency and performance of Kherbet al-Maaze WWTP using (ASM1,ASAL1) models,
and we could build several scenarios like arrival of high pollution load to the station in order to
evaluate and predict its performance.
