Desulfurization wastewater zero-discharge treatment system and method

A technology for desulfurization wastewater and treatment system, which is applied in gaseous discharge wastewater treatment, water/sewage treatment, heating water/sewage treatment, etc. It can solve the problems of high operating cost, many nodes, and large investment, and reduce the floor space. and equipment investment, reducing process energy consumption, and simplifying the effect of process flow

Pending Publication Date: 2020-09-08
深圳能源资源综合开发有限公司
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Problems solved by technology

Due to the shortcomings of large investment and high cost of steam evaporation crystallization process, it affects its wide-scale promotion
In recent years, the mainstream steam evaporation technology used in engineering is vertical me

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  • Desulfurization wastewater zero-discharge treatment system and method
  • Desulfurization wastewater zero-discharge treatment system and method
  • Desulfurization wastewater zero-discharge treatment system and method

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[0037] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] Such as figure 1 As shown, the zero-discharge desulfurization wastewater treatment system according to an embodiment of the present invention includes a regulating tank 10, an integrated pretreatment device 20, a microfiltration device 30, and a nano filter that are sequentially connected to treat the desulfurization wastewater and are connected in sequence according to the treatment direction of the desulfurization wastewater. The filtration device 40, the high-pressure reverse osmosis device 50, the ultra-high pressure reverse osmosis device 60, the horizontal tube falling film concentration device 70, and the evaporation crystallization device 80.

[0039] Among them, the regulating tank 10 is connected to the desulfurizatio...

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Abstract

The invention discloses a desulfurization wastewater zero-discharge treatment system and method. The desulfurization wastewater zero-discharge treatment system comprises an adjusting tank, an integrated pretreatment device, a microfiltration device, a nanofiltration device, a high-pressure reverse osmosis device, an ultrahigh-pressure reverse osmosis device, a horizontal pipe falling film concentration device and an evaporative crystallization device; wherein the adjusting tank, the integrated pretreatment device, the microfiltration device, the nanofiltration device, the high-pressure reverseosmosis device, the ultrahigh-pressure reverse osmosis device, the horizontal pipe falling film concentration device and the evaporative crystallization device are sequentially connected in the treatment direction of desulfurization wastewater. Zero discharge of wastewater is achieved, the scale of an evaporation system is reduced, the energy consumption of an evaporation crystallization processis reduced, the purity of crystalline salt is improved, the pretreatment process flow is simplified, and the floor area and equipment investment are reduced.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a zero-discharge treatment system and method for desulfurization wastewater. Background technique [0002] In order to remove sulfur dioxide in flue gas, more than 90% of coal-fired power plants in my country use limestone gypsum wet desulfurization process. Various types of wastewater from power plants are often used as process water for desulfurization systems. Therefore, the desulfurization wastewater generated by the desulfurization system is the terminal wastewater of the power plant. It has the characteristics of small water volume, complex components, and difficult treatment. Due to the increasingly prominent problems of water resource reuse and environmental protection, zero discharge of desulfurization wastewater is becoming more and more necessary. [0003] The main factors affecting the water quality of desulfurization wastewater include the type of coal ...

Claims

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Application Information

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IPC IPC(8): C02F9/10C01D3/04C02F101/10C02F103/18C02F101/20
CPCC01D3/04C01P2006/80C02F1/04C02F1/041C02F1/441C02F1/442C02F1/444C02F1/5236C02F1/5281C02F1/56C02F1/62C02F1/66C02F5/02C02F9/00C02F2001/007C02F2101/10C02F2103/18C02F2301/066
Inventor 张泉高然李朝辉兰建伟王明常彭足仁赵剑锋徐文军
Owner 深圳能源资源综合开发有限公司
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