Wastewater treatment method

A treatment method and technology for wastewater, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of difficult control, violent fluctuation of ion concentration to be treated, etc. Solve the effect of sharp fluctuations in concentration and difficult to control, and reduce operating costs

Active Publication Date: 2016-10-05
SEMICON MFG INT (SHANGHAI) CORP
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Problems solved by technology

[0006] The purpose of this application is to provide a wastewater treatment method to solve the problem that the concentration of ions to be treated in the wastewater treatment method fluctuates violently and is difficult to control

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  • Wastewater treatment method

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0021] As introduced in the background technology, the concentration of ions to be treated in the existing wastewater treatment methods fluctuates violently and is dif...

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Abstract

The application herein discloses a wastewater treatment method, which includes the steps of: (S1) measuring concentration change rate x of a to-be-treated ion in the wastewater; and (S2), when x > a, adding m parts of a reaction reagent to the waste water and when x < b, adding n parts of the reaction reagent to the waste water, if b <= x <= a, adding k parts of the reaction reagent to the waste water, wherein a is a positive number, b is a negative number and n < k < m. The method firstly measures the concentration change rate x of the to-be-treated ion in the wastewater, wherein the x decides the addition quantity of the reaction reagent to the waste water, so that a problem of intensive concentration fluctuation and difficult control of the fluctuation of the to-be-treated ion, and meanwhile stability of a medicine addition system is improved. The method also increases use efficiency of the reaction reagent and further reduces operation cost of the medicine addition system.

Description

technical field [0001] The present application relates to the technical field of wastewater treatment, in particular, to a wastewater treatment method. Background technique [0002] Dosing is an important process in the sewage treatment process. The performance of the dosing system directly affects the operating cost of sewage treatment and the effluent quality of sewage treatment. In the sewage treatment system, the use of chemicals is an important measure to improve the quality of effluent water. Therefore, it is of great significance to study the optimal setting model and prediction model of chemical dosing in sewage treatment to realize the optimal control of chemical dosing, which is of great significance to improve the effluent quality of sewage treatment and save the cost of chemicals and labor costs in the process of sewage treatment. [0003] The modern semiconductor industry produces a large amount of waste water (such as waste water containing HF), which needs to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/58
Inventor 黄攀峰王春冬张云秀徐鸣厉晓华
Owner SEMICON MFG INT (SHANGHAI) CORP
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