BG113015A - Method composition of reagents and pesticide disposal system - Google Patents

Abstract

Method, composition of reagents and system for disposal of pesticides, which uses useful additives and reagents and is characterized by the fact that organochlorine pesticides - DCT, aldrin, dieldrin, hexachlorohexane, camphechlor, lindane, heptachlor, and others are mixed with chlorocarbon compounds, plasticizer, stabilizer and pigments, as the organochlorine pesticides are part of the composition alone or in a weight ratio of 0.5: 0.5 to 1: 1, and the other components are in the following amounts by weight: chlorocarbon mixture - 100, pesticide - from 1 to 35, stabilizer - from 3 to 7, plasticizer - from 2 to 3, pigment - from 1 to 3, whereby the disposal operations are carried out by means of a mobile platform.

Description

METHOD, COMPOSITION OF REAGENTS AND PESTICIDE DISPOSAL SYSTEM

Field of technology

The invention relates to a waste-free technology for disposal of banned and obsolete chlorine organic powder pesticides: DDT, aldrin, dieldrin, hexachlorohexane, camphechlor, lindane, heptachlor and others.

BACKGROUND OF THE INVENTION

A pesticide is known to be any substance used to kill, repel or control certain plant and animal life forms that are considered pests. Pesticides can be grouped into chemical families. The most commonly used chemical groups of compounds include organophosphates, chlorine organics and carbamates.

The mechanism of chlorine-organic compounds works by disturbing the sodium-potassium balance of nerve fibers, forcing the nerve to transmit impulses continuously. The toxic effects of pesticides of organic chlorine vary considerably, but they have been discontinued due to their persistence and potential for bioaccumulation. However, in many parts of the world there are still warehouses with pesticides of organic chlorine origin.

Many methods are known for the disposal of pesticides, which are often not the final solution of the process [5].

[1] U.S. Pat. No. 3,845,190 (A) discloses a method for disposing of organic pesticides, comprising introducing the pesticides and an oxygen source into a molten salt bath containing essentially an alkali metal carbonate or a mixture of alkali metal carbonates. The pesticides decompose thermally, at least partially oxidizing to give a decomposition product containing carbon dioxide, water vapor, oxygen and nitrogen in the form of a gas which is released into the atmosphere.

[2] EP0603533B1 presents a method for the destruction of chlorinated organic products which includes treatment on the basis of sulphonation or nitration and subsequent oxidation with Η ₂ O ₂ .

[3] RU2480260 presents a method for the disposal of hazardous toxic organic wastes containing polychlorinated bi-phenyls or unusable pesticides. The proposed method includes a first step in which the reduction of the liquid phase is carried out in the presence of an alkaline reagent and useful additives mixed in an aqueous solution of monoethanolamine in a reaction chamber heated by superheated steam to 170 ⁰ C. Then the mixed temperature is raised to 190 ° C for 25 minutes and kept for three hours at 190 ⁰ C to 200 ⁰ C. At some point the volatile substances are captured to be destroyed in the second stage. Said alkaline reagent is at least sodium hydroxide. Oily fuels, metal salts of variable valence in the form of hydrated salts, aliphatic spirits or oxides of rare earth metals are used as said useful additives. In the second stage, the produced mixture is burned in a combustion chamber at 600-700 ⁰ C, while the flue gases together with the volatile substances are burned at at least 1200 ° C.

[4] WO9108986 (A1) provides a method for the destruction or degradation of toxic organic compounds, which may include organohalogens, polycyclic aromatic hydrocarbons, long chain hydrocarbons, insecticides and pesticides. The toxic organic compound, when present in concentrated waste, is initially adsorbed on hydrated aluminum silicates before being treated with microorganisms to degrade or modify the toxic organic compound. The fraction obtained from the above treatment step is then further treated with the same microorganisms to reduce the amount of toxic organic compound to a safe level, after which the toxic organic compound can be discarded.

Technical essence of the invention

The object of the invention is to provide a method, composition of reagents and a system for disposal of banned and obsolete powdered chlorine organic pesticides: DDT aldrin, dieldrin, hexachlorohexane, camphechlor, lindane, heptachlor, etc., converting them into valuables.

The problem is solved as a method, composition of reagents and system for disposal of banned and obsolete powdered chlorine organic pesticides, which uses useful additives and reagents and is characterized by the fact that chlorine organic pesticides - DDT, aldrin, dieldrin, hexachlorohexane , camphechlor, lindane, heptachlor, etc., are mixed with chlorine carbon compounds, plasticizer, stabilizer and pigments, as chlorine organic pesticides participate in the composition alone or in a weight ratio of 0.5: 0.5: 0.5: 0.5: 0.5. up to 1: 1: 1: 1: 1 ..., and the other components are in the following quantities in weight units: chlorine carbon mixture - 100, pesticide - from 1 to 35, stabilizer - from 3 to

7, plasticizer - from 2 to 3, pigment - from 1 to 3, where the disposal operations are carried out using a mobile platform.

The system for disposal of banned and obsolete chlorine organic pesticides is a mobile platform and contains: Electricity unit; Water tank; Faucet; Control room; Laboratory; Production line for carrying out the operations from the technology; Big-Bag bags with chlorine carbon mixture; Big-Bag bags of pesticides; Big-Bag bags with a neutralized safe for human health, environment and water mixture for further processing; Electronic scale.

Explanation of the attached figure

The attached figure shows a diagram of a mobile platform for the disposal of banned and obsolete chlorine organic pesticides.

Exemplary implementation

The mobile platform is positioned next to the pesticide warehouse. Laboratory samples of pesticides are taken. Prepare the mixture in parts by weight as follows:

- Half vinyl chloride mixture (PVC) - 100 parts;

- Pesticide - from 1 to 35 parts by weight;

- Stabilizer - Zn, Sn from 3 to 7 parts by weight. (Serves to increase the temperature range of the raw material to obtain a particular type of product);

Plasticizer - Dioctyl phthalate (DOF), dioctyladipinate (DOA) from 2 to 3 parts by weight.

- Pigment - Acetylene carbon black from 1 to 3 parts by weight. (Serves to neutralize free radicals in the mixer at a temperature of 99 C;

- The mixture is mechanically homogenized in the mixer from the mobile platform and drawn on laboratory rollers; The mixture is tested according to the methodology of the Central Laboratory for Chemical Testing and Control (CLHIC) or other authorized pesticide institutions.

- A recipe is prepared according to which the components in the mixer are mixed. The pesticides from the landfill are placed in polyester Big-Bag bags.

Example 1.- Composition for solid chlorine carbon composition in parts by weight (applies to hexachlorohexane and camphechlor):

1. Chlorine carbon mixture - 100 parts by weight of stabilizer - Zn, Sn - 2 parts by weight;

2. Plasticizer - (DOF), (DOA) - 3 parts by weight

3. Pigment - Acetylene carbon black - 4 parts by weight;

4. DDT - 4 parts by weight

The composition according to example 1. is prepared according to the following technological regime: The pesticides, PVC, stabilizer, plasticizer and soot are dosed. The metered mixture in the warm part of the mixer is heated to 90 ° C. At this temperature the carbon chain increases, then the mixture is cooled to 40 ° C, which results in chain breakage and disposal of pesticides. The obtained raw material is transferred by gravity to BIG-BEG bags, as the schematic diagram of the production line is given in Fig. 1.

Example 2. - Composition for soft chlorine carbon composition (applies to lindane and heptachlor): Dosage in the mixer: chlorine carbon mixture, chlorine organic pesticide, stabilizer, plasticizer and pigment.

1. Chlorine carbon mixture - 100 parts by weight;

2. Stabilizer - Zn, Sn - 2 parts by weight;

3. Plasticizer - dioctyl phthalate (Dioctyl Phthalate), or dioctyladipinate (DOA) - 3 parts by weight;

4. Pigment - Acetylene carbon black - 2 parts by weight;

5. DDT - 30 parts by weight.

The composition is produced in the same sequence of operations as in example 1. In the specified mixing mode, the mixture is neutralized and is ready for further processing.

Example 3, - As in Example 2, but the pesticide is a mixture of lindane, heptachlor and dieldrin in a ratio of 1: 1: 1;

Example 4, - As Example 1., but the pesticide is a mixture of DDT hexachlorohexane, dieldrin, camphechlor, lindane and heptachlor in the ratio 0.5: 0.5: 0.5: 0.5: 0.5;

Example 5 - As in Example 1, but the pesticide is a mixture of DDT hexachlorohexane, dieldrin, camphechlor, lindane and heptachlor in the ratio 0.7: 0.7: 0.7: 0.7: 0.7: 0.7;

These examples show that pesticides may be of the same species or may be a mixture of different species regardless of their percentage.

The system for disposal of banned and obsolete chlorine organic pesticides from the attached figure is a mobile platform and contains: Electricity unit 1; Water tank 2; Mixer 3; Control room 4; Laboratory 5; Production line for technology operations • 7

6; Big-Bag 7 bags with chlorine carbon mixture; Big-Bag bags 8 with pesticides; Big-Bag bags 9 with a neutralized safe for human health, environment and water mixture for further processing; Electronic scale 10.

Application of the invention

The described operations in an exemplary embodiment also represent the application of the invention.

Advantages of the invention

The method for pesticide disposal is without waste mobile technological process, permanently solving the problem of pesticide disposal, where the obtained raw materials will find application in industry for: production of optical cables, plastic pipes and pallets, asphalt mixtures, rubber products and others.

Literature:

[1] US 3845190 (A) - Disposal of organic pesticides;

[2] EP0603533B1 - Process for the disposal of chlorinated organic products by sulphonation or nitration and subsequent oxidation;

[3] RU2480260 - Method of killing and neutralizing toxic organic wastes;

[4] WO9108986 (A1) - Method of disposal and degradation of toxic organic compounds;

[5] https://swiss-contribution.bg/proiects/obezvrezhdane-napestitsidi/ekologosaobrazno-obezvrezhdane-na-izlezli-ot-upotrebapestitsidi-i-drugi-preparati-za-rastitelna-zashtita-s-iztekal-srok-nagodnost

Claims (2)

PATENT Claims METHOD, COMPOSITION OF REAGENTS AND PESTICIDE DISPOSAL SYSTEM A method, composition of reagents and a system for the disposal of pesticides, which uses useful additives and reagents and is characterized in that the chlorine organic pesticides DDT, aldrin, dieldrin, hexachlorohexane, camphechlor, lindane, heptachlor, etc., are mixed with chlorine carbon compounds, plasticizer, stabilizer and pigments, as chlorine organic pesticides participate in the composition alone or in a weight ratio of 0.5: 0.5: 0.5: 0.5: 0.5, .. to 1: 1: 1: 1: 1 ..., and the other components are in the following quantities in units of weight: chlorine-carbon mixture - 100, pesticide - from 1 to 35, stabilizer - from 3 to 7, plasticizer - from 2 to 3, pigment from 1 to 3, where the disposal operations are carried out using a mobile platform. Method, composition of reagents and system for disposal of pesticides according to claim 1, characterized in that the system for disposal of banned and obsolete organic chlorine pesticides is a mobile platform and comprises: Unit (1) for electricity; Water tank (2); Mixer (3); Control room (4); Laboratory (5); Production line (6) for carrying out the operations of the technology; Big-Bag bags (7) with chlorine carbon mixture; Big-Bag bags (8); with pesticides; Big-Bag bags (9) with a neutralized safe for human health, environment and water mixture for further processing; Electronic scale (10).