Method for dynamically removing residual pesticides in vegetables and device thereof

Abstract

The invention relates to a method for dynamically removing pesticide residue in vegetables and a device applied to the method. Edible alkali powder is added into ozonic aqueous solution to form mixed solution; the pH value of the mixed solution is controlled at 9.0 to 9.5 and the mixed solution is heated; vegetable which requires the removal of pesticide residue is placed in the mixed solution the temperature of which is controlled at 40 to 45 DEG C, to be treated for 25 to 35 min while being stirred; the vegetable after being treated is cleaned with water. The method of the invention has comprehensive application and each process in the method is mutually promoted and supplemented with each other; the device of the invention has simple structure and convenient use and can ensure that the solution in a container is constantly circulated to continuously provide high-concentration ozonic solution; meanwhile, with an additionally arranged stirring device, the vegetable can be in a state of dynamic removal of the ozonic solution, thus the pesticide residue on the surfaces and inner tissues of vegetables and fruits can be effectively removed without secondary pollution. Therefore, the device of the invention is beneficial to environmental protection and has relatively high economic and social benefits.

Description

technical field [0001] The invention relates to a method for dynamically removing residual pesticides in vegetables, and at the same time relates to a device used in the method, belonging to the technical field of removing residual pesticides. Background technique [0002] At present, as the use of pesticides is becoming more and more common, the phenomenon of pesticide residues on agricultural products is also in a more serious trend, and the phenomenon of excessive pesticide residues in China occurs from time to time. Pesticide residues in vegetables that exceed the standard will directly endanger the nervous system, liver, kidney and other important organs of the human body. At the same time, the residual pesticides will accumulate in the human body. After a certain amount, it will cause some chronic diseases, such as muscle numbness, cough, etc. , and even induce vascular diseases, diabetes and cancer, etc., and in severe cases, it will cause physical discomfort, vomitin...

AI Technical Summary

Problems solved by technology

[0003] At present, the removal of pesticide residues in vegetables is generally time-consuming and costly, and the effect of removing pesticides in vegetable tissues is not ideal, and some often cause secondary pollution. Improper treatment will affect the quality of vegetables. quality

Such as ozone treatment, salt water immersion, alkaline water immersion, clear water immersion and heating methods, these methods are not ideal for removing pesticides that penetrate into vegetables, melon and fruit tissues, and heating methods will greatly affect the taste of vegetables; and existing ozone Most of the removal devices can only provide low-concentration, normal-pressure ozone solution for static treatment, and can only effectively remove the residual pesticides on the surface of vegetables, melons and fruits, and have limited removal effect on the pesticides remaining in the tissues of vegetables, melons and fruits. Moreover, most of the pesticides are of the EC type, and they often penetrate into the vegetables, so the existing devices for removing residual pesticides cannot meet actual needs; look for a removal method and device that can maximize the removal of residual pesticides and retain the original quality of vegetables extremely critical

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