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Treatment method of high-salt organic wastewater containing quinolinic acids

A technology of organic wastewater and treatment method, which is applied in the field of wastewater resource utilization, and can solve problems such as high copper ion and organic matter content and unrecoverable salt

Inactive Publication Date: 2021-06-22
江苏国创新材料研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that the content of copper ions and organic matter in quinolinic acid wastewater is high and the salt cannot be recovered, the present invention provides a treatment method for high-salt organic wastewater containing quinolinic acid, adding and removing copper resin and ultra-high cross-linked resin through pretreatment Combined resin adsorption process to remove copper ions and organic matter in wastewater and improve salt quality

Method used

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Embodiment 1

[0023] The waste water of this embodiment is the waste water of the quinolinic acid oxidation section of a certain chemical enterprise. The copper ion content in the waste water is 560 mg / L, and the TOC is 4549 mg / L.

[0024] A kind of treatment method containing quinolinic acid high-salt organic waste water of the present embodiment, comprises the following steps:

[0025] (1) Use 30% liquid caustic soda, adjust the pH of the wastewater to 9-10, and then flow through the bag filter device to remove mechanical impurities. At this time, the copper ion content in the wastewater is 220mg / L, and the TOC is 3951mg / L.

[0026] (2) Send the wastewater filtered in step (1) to the copper removal resin adsorption tower for treatment to absorb copper ions in the wastewater. The copper ion content in the resin effluent is 0.46mg / L, TOC3951mg / L. ;

[0027] (3) The resin effluent in step (2) is sent to the styrene-based ultra-high cross-linked resin tower for adsorption treatment to absorb...

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Abstract

The invention discloses a method for treating high-salt organic wastewater containing quinolinic acids, and belongs to the field of water treatment. The method comprises the following steps: 1) pretreating wastewater generated in production of quinolinic acid by adding alkali and heating, 2) carrying out copper adsorption treatment on the wastewater through copper removal resin, and 3) finally carrying out organic matter adsorption treatment on the wastewater through styrene-series hypercrosslinked resin. Through combination of an oxidation process and a resin adsorption process of the copper ions and the organic matters, the copper ions can be separated from the organic matters in the wastewater, regenerated liquid generated in a resin regeneration process can be effectively treated, and the salt production quality of the wastewater is improved.

Description

[0001] The invention belongs to the field of waste water recycling, and more specifically relates to a treatment method for high-salt organic waste water containing quinolinic acid. Background technique [0002] At present, with the rapid development of the chemical industry, the quantity and types of wastewater generated in the production process are gradually diversifying, and the impact on the ecological environment is also gradually deepening. Especially the high-salt organic wastewater produced in the pesticide production process. Due to the ultra-high salt content in the water, the growth of most microorganisms is inhibited, making it difficult for biochemical processes to touch the field of high-salt wastewater; the use of chemical agents, due to the need to add agents, is easy. New ions will be introduced, which is not conducive to the recovery of salt. Therefore, electrochemical processes, membrane processes, oxidation processes, adsorption processes, etc. are often ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/28C02F101/20C02F101/30
CPCC02F9/00C02F1/285C02F2303/16C02F1/001C02F1/66C02F2101/20C02F2101/30
Inventor 王跃李正斌颜秉讯魏文王亚东彭春杰
Owner 江苏国创新材料研究中心有限公司
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