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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Applied Research in Water and Wastewater
- نوع مقاله: Journal Article
- کلمات کلیدی: partnership model,Ratio – trade system Ant Colony Optimization Theory of cooperative game
- چکیده:
- چکیده انگلیسی: One of the main problems in the quality control of rivers is the high control cost imposed upon pollutant units. The cooperative policy approach in the treatment process between two or more pollutant units is a new and economic perspective in the environmental management of catchment basins. Origins of large amounts pollutants which require a high cost to control pollution are trying to start partnerships with smaller units in establishing joint refineries in order to reduce their own and the whole system's costs. In this study, considering the one way direction of the river's water, the Streeter – Phelps equations were used to simulate the river. The Ant Colony Optimization was used as an efficiency model in order to acquire the best scenario of cooperation based on the maximum elimination of pollution and reduction of treatment costs without straying from the river's quality standards. Also the ratio – trade system was used for commercial purposes. After this the cost of the depleting units was split evenly between them using the cooperative game theory. The efficiency of the model was evaluated by qualitative and quantitative analysis of the Zarjub River in Gilan province of Iran. Three main scenarios were taken to mind for cooperative trading to take place. Carrying out the trade – partnership model could play positively large role in sufficing the quality the control of river water.
- انتشار مقاله: 25-11-1392
- نویسندگان: Seyed Masoud Tayefeh Cheraghali,Amin Sarang,Mohammad Ali Zahed,Hossein Vahidi,Moazameh Akbari
- مشاهده
- جایگاه : پژوهشی
- مجله: Environmental Energy and Economic Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Available water,System Dynamics Hydrological Model,Development Scenario,Ilam Watershed
- چکیده:
- چکیده انگلیسی: Hydrological models provide water managers with the available amount of water in the watershed. In this paper, we firstly developed a system dynamics model to calculate the available amount of water in the watershed. Then, we defined two scenarios one of which is the development scenario describing how land use changes can affect water availability in the watershed. Next, we divided the watershed into upstream and downstream assuming that these two sub-watersheds have different physical features including soil type and land cover to find out how the available water changes. The system dynamics model includes three main components of the hydrologic processes: rainfall-runoff model, snow accumulation, and groundwater. The model calculates runoff at the outlet of a watershed and sub-watersheds with monthly time step. We applied the developed model to the Ilam watershed to demonstrate the capability of the model in estimating runoff volume and available water. We calibrated model coefficients based on minimizing the model’s error in estimating the out flow of the watershed. The error was measured using the Nash-Sutcliff efficiency coefficient, the Pierson correlation coefficient, and the standard error. Specific tests such as the dimensional analysis test, and extreme conditions test were utilized to assess the structural accuracy of the system dynamics model. Results showed the appropriate accordance of the model’s output with the observed data by a value of the Nash-Sutcliff coefficient (Ens) close to 1, the rather high data correlation coefficient (R), and also a low standard error for the model’s calibration and verification periods.
- انتشار مقاله: 02-07-1396
- نویسندگان: Hamid Abdolabadi,Amin Sarang,Mojtaba Ardestani,John Little
- مشاهده
- جایگاه : پژوهشی
- مجله: Environmental Energy and Economic Research
- نوع مقاله: Journal Article
- کلمات کلیدی: River basin planning,MODSIM,Sustainable indices,Integrated water resources
- چکیده:
- چکیده انگلیسی: Nowadays, the water supply and water demand management are the main issues in water resources planning. It is more important in a river basin with a complex system facing with droughts, climate changes, inter-basin water transfer and operational and under study dams. In this paper, for water resources planning in a river basin and reducing the difference between water resources and water demands, the river basin conditions are assessed under different scenarios. In order to simulate the water resources and demands in the future, the MODSIM is used for river basin modeling. To calibrate the developed model, historical values of groundwater table fluctuations in different plains and flow changes in different hydrometric stations, are compared with the results of MODSIM. Then some indices based on three criteria including water and environmental resources sustainability, economic sustainability and social equality are defined to evaluate the scenarios. The indices are quantified and explained in current and future conditions. The results show the higher performance of Scenario 4 including the execution of under study projects along with demand management and aquifer restoration.
- انتشار مقاله: 09-03-1396
- نویسندگان: Azadeh Ahmadi,Ali Moridi,Amin Sarang
- مشاهده