A method suitable for multi-source water quality and quantity regulation of small watershed rivers

A technology with small watersheds and multiple water sources, applied in the fields of environmental hydraulics and operations research, can solve problems such as shortage, and achieve the effect of low water transfer cost, good water quality, and the most economical cost of water transfer.

Inactive Publication Date: 2019-03-29
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

Most of the current water resource dispatching uses a single or the same type of water source for long-span and long-distance dispatching to improve the ecological water demand of large watersheds, reservoirs or lakes. Small watersheds have a variety of available water resources. There

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  • A method suitable for multi-source water quality and quantity regulation of small watershed rivers
  • A method suitable for multi-source water quality and quantity regulation of small watershed rivers
  • A method suitable for multi-source water quality and quantity regulation of small watershed rivers

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Embodiment Construction

[0072] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0073] The invention provides a method suitable for regulating the water quality and quantity of multiple water sources in small river basins. Establish a genetic algorithm dispatching mathematical model with the objective function of maximizing water quality improvement and minimizing water transfer costs, and calculate and solve to obtain a preliminary dispatching plan library; EFDC small watershed distributed hydrodynamic water quality model simulates the water volume and pollutant concentration of rivers under all dispatching plans , and output the optimized multi-water source dispatching scheme for small watersheds after comprehensive screening and analysis. Finally, a set of scheduling schemes with different water diversion amounts and diversion ti...

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Abstract

The invention provides a method suitable for multi-source water quality and quantity regulation of small watershed rivers, belonging to the technical field of environmental hydraulics. The method firstly collects the long series of daily and monthly water quality data of different adjustable water sources, and defines the water quality situation of different years and different periods of the diverted water sources; Then the coupling model of distributed hydrodynamics and water quality in small watershed is established by using EFDC model. Then the objective function of genetic algorithm modelfor multi-source dispatching is set according to the requirements of water diversion. The water restriction of diverted water source and ecological water requirement are further determined. Adoptingthe mathematical model of genetic algorithm, the allocation scheme set of water transfer quantity in different years and different periods is established. The EFDC distributed hydrodynamic and water quality model is used to simulate the changes of water quantity and water quality under different water diversion schemes. Finally, the best water transfer quantity in different years and different periods is selected. This method can realize the multi-source dispatching with the best water quality, the smallest economic cost and the most economical water resources after water transfer.

Description

technical field [0001] The invention relates to the technical field of environmental hydraulics and operational research, in particular to a method suitable for regulating water quality and quantity of multiple water sources in small watershed rivers. Background technique [0002] With the continuous improvement of people's requirements for the quality of the water ecological environment, the quality of the water ecological environment in small watersheds has attracted more and more people's attention. The use of water resource scheduling is an effective way to improve the water ecological environment of rivers and reservoirs, and it is also an effective way to solve the shortage of water resources. one of the methods. Most of the current water resource dispatching uses a single or the same type of water source for long-span and long-distance dispatching to improve the ecological water demand of large watersheds, reservoirs or lakes. Small watersheds have a variety of availa...

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Application Information

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IPC IPC(8): G06Q10/06G06F17/50G06N3/12
CPCG06N3/126G06Q10/063G06F30/20Y02A20/152
Inventor 林海董颖博李冰李阳
Owner UNIV OF SCI & TECH BEIJING
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