Desulfurization wastewater resourceful treatment system and desulfurization wastewater resourceful treatment method

A desulfurization wastewater and treatment system technology, applied in the direction of gaseous effluent wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of high operating costs, difficulty in resource utilization, and inability to achieve zero discharge in desulfurization wastewater treatment processes, etc. question

Pending Publication Date: 2020-04-21
DATANG ENVIRONMENT IND GRP
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  • Application Information

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Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide a desulfurization wastewater treatment system to solve the problems of high operating cost and difficulty in resource utilization of existing desulfurization wastewater treatment equ

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  • Desulfurization wastewater resourceful treatment system and desulfurization wastewater resourceful treatment method

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[0058] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0059] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "center", "inner", "outer", "top", "bottom" etc. are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to this invention. Invention Limitations.

[0060] In the description of the present invention, it should be noted that ...

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Abstract

The invention relates to the field of desulfurization wastewater treatment, particularly to a desulfurization wastewater resourceful treatment system and a desulfurization wastewater resourceful treatment method. The desulfurization wastewater resourceful treatment system comprises a triple box mechanism, a lime milk flocculation mechanism, a mirabilite flocculation mechanism, a soda ash flocculation mechanism, a nanofiltration mechanism, a membrane distillation mechanism and a bipolar membrane electrodialysis mechanism, wherein the triple box mechanism, the lime milk flocculation mechanism, the mirabilite flocculation mechanism, the soda ash flocculation mechanism, the nanofiltration mechanism, the membrane distillation mechanism and the bipolar membrane electrodialysis mechanism are sequentially communicated, and the nanofiltration mechanism is communicated with the mirabilite flocculation mechanism. According to the desulfurization wastewater resourceful treatment system provided bythe invention, the desulfurization wastewater of a coal-fired power plant can be resourcefully utilized, and zero-discharge treatment of the wastewater can be realized.

Description

technical field [0001] The invention relates to the field of desulfurization wastewater treatment, in particular to a desulfurization wastewater treatment system and treatment method. Background technique [0002] Limestone-gypsum wet desulfurization technology is currently the most widely used desulfurization technology in coal-fired power plants. Desulfurization wastewater from coal-fired power plants has complex components (containing a large amount of suspended solids, heavy metals, etc.) , salt), high hardness, large fluctuations in water quality, etc., it is difficult to deal with. The traditional desulfurization wastewater treatment method is mainly the triple box method, including neutralization, sedimentation, flocculation, clarification and other processes. Although this method is relatively mature, its technological process and investment and operation costs are also relatively low. However, zero discharge of wastewater cannot be met, and the effluent still cont...

Claims

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Application Information

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IPC IPC(8): C02F9/10C02F103/18
CPCC02F9/00C02F2103/18C02F1/5281C02F2001/007C02F1/5236C02F1/442C02F1/447C02F1/4693
Inventor 高阳刘海洋王建龙谷小兵李飞刘晓静
Owner DATANG ENVIRONMENT IND GRP
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