Development and Application of Calculation Model of Self-purification Water Requirements in the Yellow River
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Abstract:
In order to ensure the functional continuous flow and water quality safety of water supply in the Yellow River, a calculation model system of self-purification water requirements in the Yellow River was developed based on VB and Access. The system applied the three-tier client/server mode, and its core layer is the application layer which is composed of five sub-systems including the data acquisition and updating, plan formulation, model calculation, results query, and system management. The system can be used to calculate the self-purification water requirements under the spatial distribution conditions of specific outlets and tributaries of the Yellow River. According to different background concentrations and river pollution conditions of the upstream water, this system can perform the optimization calculation to determine the minimum water and water process which can allow the pollutants to be stored in the river and satisfy the requirements of water quality objectives. The system is convenient with friendly interfaces, and has significant practicability and reference value.
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