High-efficiency vegetable pesticide residue degradation method and device

Abstract

The invention discloses a high-efficiency vegetable pesticide residue degradation method and device. Fresh vegetables are subjected to ultrasonic cleaning in an ultrasonic cleaning tank, and treated through a first bubble cleaning tank, an ozone degradation machine, a second bubble cleaning tank, a vibrating draining track and a wind blow-drying track in sequence. The pesticide residue in the vegetables is efficiently degraded by adopting an ultrasonic and ozone combined strong oxidation method, fast and efficient degradation of the vegetable pesticide residue is achieved, the high-efficiency vegetable pesticide residue degradation method and device have the characteristics of being easy to operate, free of secondary pollution and thorough in pollutant degradation, and have the advantages of being high in efficiency and low in cost.

Description

technical field [0001] The invention belongs to the field of vegetable processing, and in particular relates to a high-efficiency vegetable pesticide residue degradation method and device. Background technique [0002] Vegetables are important crops and indispensable food for residents' daily life. With the continuous expansion of human demand for agricultural products, the use of pesticides is in a stage of rapid growth. However, due to factors such as unscientific use of pesticides, weak safety awareness of vegetable farmers, and environmental pollution in production areas in vegetable production, pesticide residues in vegetables have seriously exceeded the standard for a long time. , As a result, the export of agricultural and sideline products in my country has repeatedly been rejected, detained, returned, claimed, and even canceled contracts. Vegetable pesticide residues accumulate in the body over a long period of time and exert a subtle influence on them, which will l...

AI Technical Summary

Problems solved by technology

This method is equivalent to continuously degrading pesticide residues in the water in which fruits and vegetables are soaked, instead of directly treating the fruits and vegetables themselves. The main disadvantage is that the pesticide residues on the surface of fruits and vegetables cannot be dissolved into water by soaking. little effect

Chinese patent CN201510813052.5 discloses an automatic cleaning machine for household kitchen utensils, fruits and vegetables for removing pesticide residues, including an ozone generating device and an ultrasonic generator. The disadvantage is that the contact area between ozone and fruits and vegetables is limited to the part exposed to the water surface, resulting in very limited degradation effect

Chinese patent CN201310705162.0 discloses a method and device for decomposing fruit and vegetable pesticide residues by hydroxyl radicals and disinfecting tableware. First, the ozone generated by the ozone generator is released into the water through the aerator, and then generated in the water by stirring with the wave wheel. High-concentration ozone water, high-concentration ozone water is irradiated by UVC253.7nm mercury lamp ultraviolet lamp module or deep ultraviolet DUV LED 280nm LED ultraviolet lamp module to generate singlet atomic oxygen, and singlet atomic oxygen pulls the water apart to generate high-concentration hydroxyl free Fresh food such as fruits, vegetables, or sterilized tableware and medical equipment that have been sterilized, detoxified and purified are placed in the loading basket, and the wave wheel stirs the high-concentration hydroxyl radical aqueous solution to quickly remove them from fruits, vegetables, fresh food, and tableware. , medical equipment, the aqueous solution of hydroxyl radicals can continuously disinfect, detoxify and purify the pesticide residues of fruits, vegetables and fresh food, or disinfect tableware and medical equipment. The effective propagation distance of ultraviolet light in water is very short, and it can only act on the ozone water on the surface of the container, resulting in the hydroxyl radical aqueous solution only existing in the shallow layer of the liquid surface in the container, and cannot effectively degrade the pesticide residues on the fruits and vegetables under the liquid surface , the degradation effect of this method is very limited

Chinese patent CN201310705162.0 discloses a physical and chemical treatment method that degrades and preserves the quality of vegetable raw materials containing specific pesticides before processing. Fresh vegetables are first treated with lye, and in the process of lye treatment, high-frequency and low-frequency two-stage ultrasonic cleaning technology is used. Then soak in hot water for a short time, and finally soak in clean water, remove and dry, and put it in a cold storage for refrigeration. The disadvantage is that soaking in lye and blanching will cause deterioration of vegetable nutrients, and even cause secondary pollution.

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