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Purifying salt production system and method for synchronous removal of organic matters through evaporative crystallization of high-salinity organic wastewater

A technology of organic waste water and evaporative crystallization, which is applied in evaporative separation crystallization, chemical instruments and methods, crystallization separation, etc., can solve the problem of inability to obtain crystalline salt, and achieve the effects of compact structure, water saving and pollution elimination.

Inactive Publication Date: 2016-10-12
BEIJING GUODIAN FUTONG SCI & TECH DEV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The COD of concentrated water concentrated by membrane is generally greater than 500mg / L, and it is impossible to directly obtain pure crystalline salt by evaporation and crystallization

Method used

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  • Purifying salt production system and method for synchronous removal of organic matters through evaporative crystallization of high-salinity organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The high-salt organic wastewater evaporation and crystallization in this example is a purified salt-making system that simultaneously removes organic matter, such as figure 1 shown, including:

[0037] evaporative crystallizer;

[0038] A material circulation pipe connected to the evaporative crystallizer;

[0039] and an oxidation treatment reactor arranged on the material circulation pipe; the oxidation treatment reactor is an ozone oxidation reactor;

[0040] And the high-frequency ultrasonic rapping device arranged at the lower side of the evaporation crystallizer; the ultrasonic rapping device is an ultrasonic vibrating rod.

[0041] The method for purifying and producing salt by evaporating and crystallizing high-salt organic wastewater according to the present invention to simultaneously remove organic matter comprises:

[0042] 1) High-salt organic wastewater enters the evaporation crystallizer through the material circulation pipe; the COD of the saline wast...

Embodiment 2

[0049] The high-salt organic wastewater evaporation and crystallization in this example is a purified salt-making system that simultaneously removes organic matter, such as figure 1 shown, including:

[0050] evaporative crystallizer;

[0051] The material circulation pipe connected with the evaporative crystallizer;

[0052] and an oxidation treatment reactor arranged on the material circulation pipe; the oxidation treatment reactor is an ozone oxidation reactor;

[0053] and the ultrasonic vibrating device arranged at the lower side of the evaporation crystallizer; the ultrasonic vibrating device is an ultrasonic vibrating rod.

[0054] The method for purifying and producing salt by evaporating and crystallizing high-salt organic wastewater according to the present invention to simultaneously remove organic matter comprises:

[0055] 1) High-salt organic wastewater enters the evaporation crystallizer through the material circulation pipe; the COD of salty wastewater is 20...

Embodiment 3

[0062] The high-salt organic wastewater evaporation and crystallization in this example is a purified salt-making system that simultaneously removes organic matter, such as figure 1 shown, including:

[0063] evaporative crystallizer;

[0064] The material circulation pipe connected with the evaporative crystallizer;

[0065] and an oxidation treatment reactor arranged on the material circulation pipe; the oxidation treatment reactor is an ozone oxidation reactor;

[0066] and the ultrasonic vibrating device arranged at the lower side of the evaporation crystallizer; the ultrasonic vibrating device is an ultrasonic vibrating rod.

[0067] The method for purifying and producing salt by evaporating and crystallizing high-salt organic wastewater according to the present invention to simultaneously remove organic matter comprises:

[0068] 1) High-salt organic wastewater enters the evaporation crystallizer through the material circulation pipe; the salt-containing wastewater CO...

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Abstract

The invention discloses a salt-purifying system and method for synchronously removing organic matters through evaporation and crystallization of high-salt organic wastewater, belonging to the field of wastewater treatment. The purified salt-making system includes: an evaporation crystallizer; a material circulation pipe connected to the evaporation crystallizer; and the oxidation treatment reactor arranged on the material circulation pipe; and the ultrasonic vibrating device arranged at the lower side of the evaporation crystallizer. During the crystallization process, the present invention can effectively remove organic matter in the system and reduce the amount of hazardous waste disposal; the present invention has crystallization salt purification technology, which can effectively improve the concentration and purity of crystallization salt; the system of the present invention is highly integrated, compact in structure, and low in cost .

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a salt purification system and method for synchronously removing organic substances through evaporation and crystallization of high-salt organic wastewater. Background technique [0002] High-salt wastewater refers to the total salt content (Cl - , SO4 2- 、Na + , Ca 2+ etc.) higher wastewater. High-salt wastewater mainly comes from chemical, petroleum, food processing, printing and dyeing industries. In addition to salts, the wastewater discharged from these industries also contains a large amount of organic matter. In the prior art, in order to effectively utilize water resources and prevent environmental pollution caused by wastewater discharge, it is necessary to desalinate and remove organic matter from high-salt wastewater before recycling. [0003] The high brine produced in the process of wastewater reuse treatment has basically realized the reduction of...

Claims

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Application Information

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IPC IPC(8): C02F9/10B01D9/00C02F101/30
CPCC02F9/00B01D9/0031B01D9/0081C02F1/04C02F1/78C02F2101/30
Inventor 李若征赵崇马文明李惠宇滕济林樊兆世张培林胡石李星伟
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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