System and method for treating wastewater containing sodium chloride

A treatment system and wastewater treatment technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, heating water/sewage treatment, etc. Cost, mature technology, and the effect of zero discharge of wastewater

Inactive Publication Date: 2013-02-13
山东沃蓝生物集团有限公司
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Problems solved by technology

[0002] The discharge of wastewater containing sodium chloride will cause environmental pollution, an

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  • System and method for treating wastewater containing sodium chloride

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Embodiment Construction

[0016] The present invention provides a treatment system for wastewater containing sodium chloride, which includes a crystallization centrifugal separation system, the crystallization centrifugal separation system includes a cyclone 7, a thickener 8 and a centrifuge 9 connected in sequence, and the cyclone 7 It is connected with a three-effect evaporator for concentrating waste water containing sodium chloride. The three-effect evaporator includes a first-effect evaporator, a second-effect evaporator, and a third-effect evaporator connected in sequence. The first-effect evaporator includes a first-effect heater 1 and a first-effect evaporator 2, and the second-effect evaporator includes Two-effect heater 3, two-effect evaporator 4, third-effect evaporator includes three-effect heater 5, three-effect evaporator 6, one-effect heater 1 and one-effect evaporator 2, two-effect heater 3 and two-effect The evaporator 4, the three-effect heater 5 and the three-effect evaporator 6 are ...

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Abstract

The invention relates to the technical field of wastewater treatment, in particular to a system and method for treating wastewater containing sodium chloride. The system for treating wastewater containing sodium chloride comprises a crystallization centrifugal separation system and is characterized in that the crystallization centrifugal separation system comprises a hydrocyclone, a thickener and a centrifugal machine which are sequentially connected, wherein the hydrocyclone is connected with a triple effect evaporation device used for concentrating wastewater containing the sodium chloride. The system has the beneficial effects of realizing zero emission of the wastewater, reducing negative effects of salt-containing wastewater emission on local surface water body and agricultural production, recycling a large quantity of steam condensate and sodium chloride, realizing win-win targets of economic benefit and environmental protection benefit, reducing consumption of live steam and lowering operation cost, and has a wider application prospect in the high-salinity wastewater treatment project.

Description

(1) Technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a treatment system and a treatment method for waste water containing sodium chloride. (2) Background technology [0002] The discharge of waste water containing sodium chloride will cause environmental pollution, and if the content of sodium chloride in the waste water is high, it will also cause waste of resources. (3) Contents of the invention [0003] The invention provides a treatment system and a treatment method for sodium chloride-containing wastewater that avoid environmental pollution and resource waste. [0004] The present invention is achieved through the following technical solutions: [0005] A treatment system for wastewater containing sodium chloride, including a crystallization centrifugal separation system. It is connected to the three-effect evaporator that concentrates the wastewater containing sodium chloride. [0006] In the treatment ...

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Application Information

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IPC IPC(8): C02F9/10C01D3/06C02F1/04
Inventor 杨一言郭振国
Owner 山东沃蓝生物集团有限公司
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