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Simulation method of adsorbing and settling process of activated sludge based on PCA model

A technology of activated sludge adsorption and simulation method, which is applied in the field of intelligent science and environmental engineering, and can solve problems such as difficult to overcome the complexity of activated sludge system

Inactive Publication Date: 2010-06-02
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to use probabilistic cellular automata simulation to realize the biochemical reaction process of sludge adsorption and sedimentation in the aeration tank of the activated sludge system, and solve the problem that the existing model is difficult to overcome the complexity of the activated sludge system

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  • Simulation method of adsorbing and settling process of activated sludge based on PCA model
  • Simulation method of adsorbing and settling process of activated sludge based on PCA model
  • Simulation method of adsorbing and settling process of activated sludge based on PCA model

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Embodiment Construction

[0051] The PCA model of 20×20×20 is used as an example below. The realization of this embodiment comprises three steps:

[0052] 1. Establish the corresponding PCA initial model in the activated sludge system and initialize the cell state.

[0053] A 20×20×20 cube is used as the initial model of PCA. Considering the practical significance of sewage treatment, the boundary condition is fixed at zero state, which belongs to the virtual lattice and does not evolve. In this way, the boundary is removed, and there are 6859 grids evenly distributed on the state space, and each grid represents a cell, such as figure 2 . There are five possibilities for the state of the cell: the cell is empty or a water molecule, which is state 0; the grid is occupied by microorganisms that adsorb small molecular organic substances by neighbors, which is state 1; bacteria are generated, which is state 2; the grid is occupied by neighbors Microorganisms that adsorb macromolecular organic matter a...

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Abstract

The invention relates to a simulation method of active sludge absorption and settlement process based on a PCA model, which pertains to the field of intelligent science and environmental engineering science. The method relates to the utilization of the probability cellular automation (PCA) to simulate the biochemical reaction process of sludge absorption and settlement in an aeration pool of an active sludge system. The method is established in an artificial life system, establishes a corresponding PCA module for the active sludge system, and designs an evolvement rule based on the PCA rule and realizes the evolvement. The method solves the problem of complexity of the active sludge system which can not be overcome by the existing module, gives a breakthrough to the traditional mathematicsmodule method and directly depicts the characteristics of the dynamic evolvement of the active sludge system. The method mainly focuses on the removal of organisms and conducts the analysis and the utilization of the organisms, and adjusts the variety and the quantity of the microorganisms and can be used for guiding the establishment of more accurate active sludge absorption and settlement model.

Description

technical field [0001] The present invention relates to the simulation realization of the biochemical reaction process of activated sludge adsorption and sedimentation in the aeration tank, especially the establishment of sludge adsorption and sedimentation in the aeration tank of the activated sludge system based on the probability cellular automata (probability cellular automata, referred to as PCA) The biochemical reaction model and simulation realization belong to the field of intelligent science and environmental engineering. Background technique [0002] Activated sludge wastewater treatment uses artificial aeration to make the activated sludge evenly dispersed and suspended in the aeration tank, and fully contact with the sewage. Under the condition of dissolved oxygen, a large number of bacteria, fungi, algae, Protozoa and metazoans use organic matter in sewage as food for metabolism and reproduction, so as to achieve the purpose of removing organic matter. During t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/28C02F1/52C02F3/12
CPCY02W10/10
Inventor 乔俊飞李荣
Owner BEIJING UNIV OF TECH
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