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Articles by H. Rahimipour
Total Records ( 2 ) for H. Rahimipour
  J. Nouri , H. Rahimipour and R. Nezakati
  Chitgar artificial lake, located in urban District-22 Municipality of Tehran northwest of Tehran, Iran is by volume l0 million cubic meter (MCM), by depth average 10 meter (m.) and by area 225 hectares (ha) as the Iran’s largest man-made lake. The most important water resources of district, which can support the lake water, are Kan River, municipal runoff, the middle part watersheds runoff and the treated wastewater of urban region. In this study the way to take water from each resource individually or some of them together have been discussed and twelve different choices of resources to maintain the lake water have been introduced. Thermal stratification is one of the most important parameters that can affect the lake water quality after construction in regard to Tehran climatic conditions. In this research water quality for river and reservoir systems (WQRRS) model has been run to every 12 aforementioned choices individually to predict the probable thermal stratification in the lake for each one. This simulation has been done during a five- year period, which is assumed to be a typical period of time in this study. The needed input data to run the model are quality factors, meteorological data, and geometrical characteristics of the reservoir, the characteristics of inflow and also the needed coefficients for the model. These data have been collected from hydrometric and meteorological stations of the region and also the results of other researches. After running the model the simulation results show that the Kan River, as one of the proposed water resources, has the least difficulties in thermal stratification.
  J. Nouri , H. Rahimipour and R. Nezkati
  According to the natural and man-made environment of Tehran and based on governmental approval, the largest artificial lake located in far northwest of Great Tehran and into the new made District-22 of Tehran Municipality is being designed. This region with an area of about 10000 ha has been planned as a last connectual limitation of Tehrran. Overflow of the Kan and the Vardavrd Rivers such as the one in 1969 in the Kan-Sologhan region and some other purposes like providing a recreational place to attract tourists and making the weather fresh and humid specially in dry seasons turn out to be the reasons for proposing the construction of an artificial lake. The lake is planned with an area of about 225 ha and 11 million cubic meters volume. The Kan and the Vardavard Rivers, the middle part watershed basins runoff, groundwater, municipal runoff and the waste water of Ekbatan treatment plant are the most important water resources in the area. Annual flow of these resources together is about 120 million cubic meters and there is the possibility of taking 40 million cubic meters of this flow to provide the lake water.To indentify the water quality of resources samples were taken, analysed and statistics of hydrometric stations in the region have been assessed. Comparison between these results and standards proved that the Kan and the Vardavard Rivers, groundwaters and the middle part watershed basins runoff have the highest quality. In Ekbatan treatment plant waste water and municipal runoff total coliform is 1.1x104 MPN 100 ml–1 and 2.2x1029 MPN 100 ml–1, respectively which is higher than standards and inappropriate to provide the lake water.
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