CN2781804Y

CN2781804Y - Nano photocatalysis degrading appts. for residualpesticide

Info

Publication number: CN2781804Y
Application number: CNU2005200896345U
Authority: CN
Inventors: 孙德岭; 孙楚
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-08
Filing date: 2005-03-08
Publication date: 2006-05-24
Anticipated expiration: 2015-03-08

Abstract

The utility model relates to a pesticide residue nanometer photocatalysis degradation device, which comprises a reaction chamber provided with a material inlet and a material outlet, wherein an ultraviolet lamp and an aeration device are arranged in the reaction chamber, a fluid circulating device is connected with the reaction chamber and an overflow groove through a communicating pipe. By using a circulating device, the liquid in the overflow groove passes through the communicating pipe and is circularly sent in the reaction chamber, and the reaction chamber of the device is provided with a medicine adding device which is used for adding required nanometer TiO 2. In order to increase the aeration effect of the reaction chamber, the aeration device is arranged under a grid and is positioned in the liquid. The device can degrade the toxicant of water system, gas and solid plants and is particularly suitable for carrying out degradation treatment for the residual pesticide for agricultural and sideline products of fruits, vegetables, ginseng, etc. A degraded object can make 360 DEG running and 90 DEG running in the reaction chamber; the liquid of the device can automatically cycle; pH value and temperature can automatically display; catalyst and gas can be automatically added. The utility model has the advantages of high automatization degree, simple operation, etc.

Description

Residues of pesticides nano-photo catalytic decomposition apparatus

Technical field

The utility model relates to a kind of residues of pesticides nano-photo catalytic decomposition apparatus, and this device belongs to a kind of ultraviolet light that utilizes to fruit, vegetables remains of pesticide and the sewage in the agricultural product such as genseng particularly, carries out the equipment of degradation treatment.

Background technology

In the existing plantation agricultural production, fruit, vegetables are agricultural product such as genseng particularly, and its necessary for growth is used the disease and pests that different agricultural chemicals is killed the growth of various harm plants in a large number.Facts have proved that agricultural byproducts have certain absorption to agricultural chemicals, make that the residual quantity of agricultural chemicals has substantially exceeded international specified standard in the agricultural product, not only influenced agricultural quality, the more important thing is that remains of pesticide has harm to health.The edible for a long time agricultural byproducts that have remains of pesticide of people can cause the human body slow poisoning, and make human organ produce different pathologies, have directly influenced health.Therefore, people's the whole bag of tricks of remains of pesticide in the agricultural byproducts that begins to seek to degrade.In the prior art, background technology public publication related to the present invention comprises that " fruit-vegetable pesticide residues mechanism of degradation " that Granted publication number is introduced for the CN2549750Y specification be made up of casing, frame, air pump, three Oxygen Generators etc., utilizes the ozonization sterilization.The general family that only is fit to of this mechanism of degradation uses; Publication number is CN1422944A specification disclosed " a fruit and vegetable residues of pesticides detergent ", uses the oxidative degradation of chlorine dioxide to make the remains of pesticide molecule be converted into water miscible little molecule.This detergent contains chemical composition, in use causes secondary pollution easily.

Summary of the invention

The utility model has overcome the deficiency of above-mentioned prior art, its purpose is to provide a kind of residues of pesticides nano-photo catalytic decomposition apparatus, this device belongs to a kind of ultraviolet light, catalyst and circulating fluid of utilizing, to fruit, vegetables particularly the remains of pesticide in the agricultural product such as genseng carry out the equipment of degradation treatment.

The purpose of this utility model realizes by following technological means.

A kind of residues of pesticides nano-photo catalytic decomposition apparatus comprises the reative cell that is provided with charging aperture and discharging opening, it is characterized in that being equipped with in the said reative cell uviol lamp and aerator, and liquid circulating apparatus is by communicating pipe coupled reaction chamber and overflow launder.This device utilizes ultraviolet light and aerator, can to fruit, vegetables particularly the remains of pesticide in the agricultural byproducts such as genseng carry out degradation treatment, and utilize EGR that the liquid in the overflow launder is sent in the reative cell as power by the communicating pipe circulation.Above-mentioned uviol lamp is installed in reaction chamber wall, can carry out the secondary treatment with ultraviolet light to circulating fluid.The reative cell of said apparatus is provided with chemicals dosing plant, is used for adding to reative cell the nano-TiO of aequum ₂In order to increase the aeration effect of reative cell, aerator is located at below the grid, is among the liquid.The panel of this device is provided with monitor screen, PH display, temperature indicator, voltmeter and ammeter and control button.

Residues of pesticides nano-photo catalytic decomposition apparatus provided by the utility model can the double as water system, the Toxic degraded of gaseous state and solid (plant).Adopt multispectral uviol lamp, the emission POP wide (185～365nm), the degradable organic pollutant non-selectivity, the scope of application is wide.The object that is degraded can be done 360 ° of runnings and 90 ° of runnings in reative cell, no dead angle in the reative cell.This device liquid can circulate automatically, and pH value and temperature can show automatically; The gentle body of catalyst can add automatically.Therefore, this plant automation degree height is operated very simple.Evidence, this device has good effect to printing and dyeing water treatment and genseng pesticide residual degradation, and wherein, printing and dyeing water decolorization speed can reach 100% in 20 minutes; All reach below the international specified standard 0.2mg/Kg behind the genseng pesticide residual degradation.See Table 1, table 2.

Table 2 different dyes decolorization rate of wastewater

The waste water kind time (min)	Acid brilliant pink B	Alkalescence bright red X-3B	Direct deep blue L	Reactive brilliant blue x-br
The waste water kind time (min)	Acid brilliant pink B	Alkalescence bright red X-3B	Direct deep blue L	Reactive brilliant blue x-br	10 20 40 60 90 120	90.4 100 100 100 100 100	76 89.7 90.3 100 100	70 67.8 81.2 87.3 97.3 99.6	86.8 86.8 87.5 88.2 96.3

The different places of production of table 3, different cultivars pesticide residue on panax ginseng degraded situation

The place of production	Kind	After the initial degraded of BHC (mg/kg)	After the initial degraded of DDT (mg/kg)	After the initial degraded of PCNB (mg/kg)	After the initial degraded of saponin (%)
The place of production	Kind	After the initial degraded of BHC (mg/kg)	After the initial degraded of DDT (mg/kg)	After the initial degraded of PCNB (mg/kg)	After the initial degraded of saponin (%)	Liaoning Huan Ren	Entirely must bright ginseng	0.817 0.031	-- --	0.911 0.024	/
Jian, Jilin	Entirely must bright ginseng	1.30 0.16	0.02 0.01	0.59 0.18	3.60 3.80	Liaoning Huan Ren	Entirely must bright ginseng	0.817 0.031	-- --	0.911 0.024	/
Jian, Jilin	Entirely must bright ginseng	1.30 0.16	0.02 0.01	0.59 0.18	3.60 3.80	Jian, Jilin	Entirely must red ginseng	0.58 0.04	0.10 0.01	2.50 0.13	3.60 4.00
The Jilin Fusong	Sun-dried ginseng	0.96 0.089	0.0075 0.0008	0.12 0.081	/	Jian, Jilin	Entirely must red ginseng	0.58 0.04	0.10 0.01	2.50 0.13	3.60 4.00
The Jilin Fusong	Sun-dried ginseng	0.96 0.089	0.0075 0.0008	0.12 0.081	/	Jian, Jilin	Dry and whole RADIX GINSENG	1.204 0.0129	0.0131 0.0097	0.18 0.0045	/
The Jilin Fusong	Dry and whole RADIX GINSENG	0.0179 0.0027	0.0129 0.0016	0.34 0.18	/	Jian, Jilin	Dry and whole RADIX GINSENG	1.204 0.0129	0.0131 0.0097	0.18 0.0045	/
The Jilin Fusong	Dry and whole RADIX GINSENG	0.0179 0.0027	0.0129 0.0016	0.34 0.18	/	The Jilin Fusong	Entirely must bright ginseng	0.873 0.0154	0.0134 0.018	0.031 0.0018	3.83 2.92

Description of drawings

Fig. 1 is the utility model panel construction schematic diagram.

Fig. 2 is the utility model reaction chamber structure schematic diagram.

Fig. 3 is the utility model fundamental diagram (shown in the dotted line).

Symbol description: 1, monitor screen; 2, PH display; 3, temperature indicator; 4, voltmeter; 5, ammeter; 6, control button; 7, discharging opening; 8, reative cell; 9, charging aperture; 10, uviol lamp; 11, overflow launder; 12, EGR; 13, aerator; 14, camera; 15, grid; 16, chemicals dosing plant; 17, liquid outlet; 18, bearing wheels; 19, communicating pipe.

Introduce the utility model specific embodiment in detail below in conjunction with accompanying drawing.

The specific embodiment

A kind of residues of pesticides nano-photo catalytic decomposition apparatus, comprise the reative cell 8 that is provided with charging aperture 9 and discharging opening 7, reative cell is a cylindrical structure, its inner periphery is arranged with 22 uviol lamps 10, liquid circulating apparatus 12 is by communicating pipes 19 coupled reaction chamber 8 and overflow launder 11, communicating pipe 19 is imported and exported and is provided with uviol lamp 10, directly imports liquid, flexibly connects with the reative cell casing.In order to increase the aeration effect of reative cell, barrier 15 is housed in the reative cell 8, aerator 13 is located at below the grid 15, is among the liquid.EGR 12 makes the liquid in the overflow launder 11 is promoted in the reative cell 8, is that solution is made circumference and moved both vertically as power; Nano-photocatalyst TiO ₂Be added in the reative cell 8 by chemicals dosing plant 16.The panel of this device is provided with monitor screen 1, PH display 2, temperature indicator 3, voltmeter 4 and ammeter 5 and control button 6.This device light intensity can be controlled, and reative cell internal operation situation is directly observed by camera 14 and by monitor screen 1.

Residual with the farming of degraded genseng below is example, introduces the operation principle of this device, and its workflow is seen Fig. 2, and wherein dotted line is a nano-photo catalytic device block diagram.The chemical residual degradation process is finished in reative cell 8 in the genseng.Photochemical catalyst adopts nano titanium oxide, and ultraviolet source adopts the different types of multispectral uviol lamp 10 of 185～365nm.Its degradation reaction mechanism is: utilize the function that this device has and the effect of reagent, will produce light-catalyzed reaction, chemical reaction and biological effect in reative cell 8, three's synergy makes the residues of pesticides in the genseng obtain degraded very soon.Genseng is as follows in the degradation process of light-catalyzed reaction chamber 8: add drinking water in the reative cell 8, and adjusting pH value, add the nano titanium oxide aequum again, open circulatory system circulation, stir, adding the genseng that is degraded then stirs, open uviol lamp 10 irradiations of various ultraviolet spectras at last, this device enters normal operating condition.Run duration as required can be continuously or intermittently add O ₂, O ₃And other oxidants, to accelerate degradation speed.In time the parameter on the recording apparatus changes (pH value, temperature etc.), and by monitor screen observing response chamber interior working order.

Claims

1, a kind of residues of pesticides nano-photo catalytic decomposition apparatus, comprise the reative cell [8] that is provided with charging aperture [9] and discharging opening [7], it is characterized in that being equipped with in the said reative cell [8] uviol lamp [10] and aerator [13], liquid circulating apparatus [12] is by communicating pipe [19] coupled reaction chamber [8] and overflow launder [11].

2, decomposition apparatus according to claim 1 is characterized in that said uviol lamp [10] is installed in reative cell [8] inwall.

3, decomposition apparatus according to claim 1 is characterized in that said reative cell [8] is provided with chemicals dosing plant [16].

4,, it is characterized in that said aerator [13] is located at below the grid [15] according to claim 1,2 or 3 described decomposition apparatus.

5, decomposition apparatus according to claim 4 is characterized in that the panel of said device is provided with monitor screen [1], PH display [2], temperature indicator [3], voltmeter [4] and ammeter [5] and control button [6].