Sodium chloride and sodium sulfate ultrasonic type evaporative-crystallization salt separating system and method

A technology of evaporative crystallization and sodium chloride, applied in the field of sodium chloride and sodium sulfate ultrasonic evaporative crystallization and salt separation system, can solve problems such as not found published patent documents, maintain stable pressure drop, improve heat transfer coefficient, reduce Effect of COD Value

Pending Publication Date: 2019-07-23
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Through the search of published patent documents, no published patent documents identical to this patent application have been found

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  • Sodium chloride and sodium sulfate ultrasonic type evaporative-crystallization salt separating system and method
  • Sodium chloride and sodium sulfate ultrasonic type evaporative-crystallization salt separating system and method
  • Sodium chloride and sodium sulfate ultrasonic type evaporative-crystallization salt separating system and method

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Embodiment Construction

[0039] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0040]An ultrasonic evaporative crystallization and salt separation system for sodium chloride and sodium sulfate. The salt device, the pretreatment device includes the Dunfen reaction tank 3, the mixed salt wastewater storage tank, the regulating tank and the Dunfen reaction tank are connected through pipelines in sequence; the ultrasonic evaporation crystallization device includes a preheater, a feed Pump 32, ultrasonic evaporation and crystallization unit and condenser 24, the condensed water outlet pipe 25 of the condenser is connected to the condensation treatment device; the condensation treatment device includes an intermediate regulating tank 6, an electrocatalytic oxidation tank 7, anaerobic Processing device 8 and biological sedime...

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Abstract

The invention relates to a sodium chloride and sodium sulfate ultrasonic type evaporating, crystallizing and salt separating system. The system is characterized by comprising a mixed salt wastewater storage tank, a regulating tank, a pretreating device, an ultrasonic type evaporative-crystallization device, a condensing treatment device and a salt separating device. The invention further relates to a sodium chloride and sodium sulfate ultrasonic type evaporating-crystallizing and salt separating method which comprises the steps: 1) pretreating high-salt wastewater; 2) performing ultrasonic type evaporative crystallization; 3) treating evaporation condensate water; 4) performing salt separating treatment. The system and method disclosed by the invention have the advantages of scientific andreasonable design and novel technology; by means of the system and the method, the high-salt wastewater can be recycled; meanwhile, salt resources can be recycled.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment and evaporation crystallization, and relates to a high-salt wastewater evaporation crystallization salt separation system, in particular to a sodium chloride and sodium sulfate ultrasonic evaporation crystallization salt separation system and method. Background technique [0002] With the development of the national economy, the discharge of high-salt organic wastewater not only seriously endangers the environment, but also poses a great threat to human health. High-salt wastewater is different from other types of wastewater, and the composition difference is not too large, and the salt substances contained are mainly CI - , SO 4 2- 、Na + , Ca 2+ and other salty substances. In the process of wastewater discharge, the salt substances in the high-salt wastewater can be separated and extracted by salt. [0003] Due to the high content of salt and organic matter, it is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C01D3/04C01D3/14C01D5/00C01D5/16C02F101/30
CPCC02F9/00C01D3/04C01D3/14C01D5/16C01D5/00C02F1/04C02F2001/007C01P2006/80C02F1/4672C02F1/66C02F1/722C02F2305/026C02F2101/30C02F3/30C02F1/36
Inventor 宋继田王业宁周山林苏杭蔡开街宋玉臣冯永俠
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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