Production process of supramolecular acidification system prepared from glyphosate wastewater

A technology for glyphosate wastewater and production process, which is applied to drilling compositions, chemical instruments and methods, etc., can solve the problems that it is difficult to completely recover glyphosate, cannot recover glyphosate resources, and has high COD value. To achieve the effect of convenient direct discharge treatment, easy process and environmental protection

Active Publication Date: 2021-08-27
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult to completely recover glyphosate by the conventional recovery process, and the COD value after treatment is relatively high
However, the degradation method cannot recover glyphosate resources, resulting in a waste of resources

Method used

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  • Production process of supramolecular acidification system prepared from glyphosate wastewater

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Effect test

Embodiment 1

[0056] Example 1 Production process system for preparing supramolecular acidification system with glyphosate wastewater

[0057] Please combine figure 1 , this embodiment provides a production process system for preparing a supramolecular acidification system with glyphosate wastewater, including a liquid distribution tank 1, a waste liquid tank 3, a liquid lifting pump 4, a primary reaction kettle 5, a primary evaporator 6, Secondary reactor 7, primary condenser 8, secondary evaporator 9, third-stage reactor 10, secondary condenser 11, third-stage evaporator 12, tank car 13, third-stage condenser 14, condensate tank 15 And drain condensate line 16. Wherein, the waste liquid tank 3 is used to store the glyphosate wastewater 2 . The liquid mixing tank 1 is used to configure the aqueous solution of hydroxypropyl-β-cyclodextrin. The primary reaction kettle 5 is respectively connected to the waste liquid tank 3 and the liquid distribution tank 1 through pipelines, and is used f...

Embodiment 2

[0061] The present embodiment provides a kind of production technology that prepares supramolecular acidification system with glyphosate waste water, comprises the following steps:

[0062] (1), adopt the production process system of the supramolecular acidification system prepared by glyphosate waste water of embodiment 1, add the clear water of 180kg hydroxypropyl-beta-cyclodextrin and 200kg in liquid mixing tank 1, stir and heat up 60 ℃, fully dissolved, and configure the aqueous solution of hydroxypropyl-β-cyclodextrin. Put 2000kg of glyphosate waste water (glyphosate content 8000-12000mg / L, total phosphorus 11000-13000mg / L, pH value 8.5) into waste liquid tank 3 through a movable hose for use.

[0063] (2), press the 125kg hydroxypropyl-β-cyclodextrin aqueous solution in the liquid mixing tank 1 into the first-stage reaction kettle 5 through compressed air, and pump all the glyphosate wastewater into the first-stage reaction through the 4 pumps In the kettle 5, a first-s...

Embodiment 3

[0068] The present embodiment provides a kind of production technology that prepares supramolecular acidification system with glyphosate waste water, comprises the following steps:

[0069] (1), adopt the production process system of the supramolecular acidification system prepared by glyphosate waste water of embodiment 1, add the clear water of 180kg hydroxypropyl-beta-cyclodextrin and 200kg in liquid mixing tank 1, fully dissolve, configure Hydroxypropyl-β-cyclodextrin in water. 2000kg of glyphosate waste water (containing diglyphosate, glyphosate content 10000-14000mg / L, total phosphorus 11000-13000mg / L, pH value 8.24) is put into the waste liquid tank 3 for use through a movable hose .

[0070] (2), press the 125kg hydroxypropyl-β-cyclodextrin aqueous solution in the liquid mixing tank 1 into the first-stage reaction kettle 5 through compressed air, and pump all the glyphosate wastewater into the first-stage reaction through the 4 pumps In the kettle 5, a first-stage as...

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Abstract

The invention relates to a production process for preparing a supramolecular acidification system from glyphosate wastewater, which uses hydroxypropyl-β-cyclodextrin as the main body, glyphosate or diglyphosate as the object, and is assembled under multi-stage normal pressure Reaction and multi-stage vacuum evaporation, concentration to obtain supramolecular acidification system. The production process of using glyphosate wastewater to prepare a supramolecular acidification system can not only completely recycle glyphosate resources, but also effectively protect the environment. The prepared supramolecular acidification products can be used in the fracturing process of oilfield well sites to realize resource utilization Utilization has found a new way out for refractory nitrogen and phosphorus-containing wastewater. At the same time, the condensate produced by the production process of using glyphosate wastewater to prepare the supramolecular acidification system contains almost no refractory metal salts, which is convenient for direct discharge and treatment, and saves treatment costs.

Description

technical field [0001] The invention relates to a production process for preparing supramolecular acidification system with glyphosate wastewater. Background technique [0002] Glyphosate is an effective active chemical ingredient in many widely used herbicides. It is a non-selective, non-residual herbicide that is very effective against perennial root weeds. It mainly inhibits enolacetonyl shikigami in plants. Phosphate synthase, thereby inhibiting the conversion of shikimelin to phenylalanine, tyrosine and tryptophan, interfering with protein synthesis, leading to plant death. [0003] There are many treatment methods for glyphosate wastewater, but from the perspective of the final treatment purpose, they are mainly divided into recovery method and degradation method. Among them, the recovery method is to recover glyphosate and bisglyphosate through physical methods such as adsorption, membrane separation, and microwave-assisted extraction; the degradation method is also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/72
CPCC09K8/725
Inventor 王长权
Owner YANGTZE UNIVERSITY
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