Synthetic Socioeconomic Based Domestic
Wastewater Hydrographs For Small Arid
Communities
Author(s)
H. Elnakar, E. Imam & K. Nassar
Abstract
A model was developed to predict synthetic socioeconomic based domestic
wastewater hydrographs for the small arid communities. The model predicts the
flow hydrograph for random weekdays and weekends based on the specific
socioeconomic characteristics of the community. The main socioeconomic
characteristics are the composition of the community, the different user
behaviours in using water appliances, and the unit discharges of such appliances.
Use patterns of water appliances are assumed to vary for the various members of
the community and the type of day. Each community is composed of several
social categories such as the employee, working woman, stay home woman, stay
home child, students etc. The use patterns account for the stochastic nature of use
in terms of number of uses, duration of the use and times of use in the day.
Randomly generated hydrographs are generated for weekdays and weekends
along with synthetic hydrographs of non-exceedance. The model was verified for
a small residential compound in Sharm El Shiekh – Egypt using 11 days of flow
measurements performed in summer. The synthetic hydrographs based on
assumed water use patterns of the various members of the community compared
reasonably with the measured hydrographs. Synthetic hydrographs can be
derived for a community under consideration to reflect its socioeconomic
conditions and thus can be used to generate probability based peaking factors to
be used in the design of sewerage systems pumping facilities, and treatment
plants.
Keywords: socioeconomic hydrographs, stochastic flows, small arid
communities, peaking flow factors, wastewater treatment plant influent.
Keywords
socioeconomic hydrographs, stochastic flows, small arid
communities, peaking flow factors, wastewater treatment plant influent.
Related Book
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