CN203612988U - Device for removing microcystin by surface discharge under catalysis of manganese and titanium co-doped carbon gel - Google Patents

Abstract

The utility model relates to a device for removing microcystin by surface discharge under catalysis of manganese and titanium co-doped carbon gel. The device comprises manganese and titanium co-doped carbon gel particles prepared according to molecular dimension of the microcystin, a cylindrical insulating reactor with covers at the top and the bottom, a high-voltage pulse power supply and an aeration device, wherein a positive electrode is fixed in the center of a top cover of the reactor through a central hole, a negative electrode is fixed in the center of a bottom cover of the reactor through a central hole, the positive electrode and the negative electrode are connected with a positive pole and a negative pole of the high-voltage pulse power supply respectively, an air outlet hole is formed in the top cover of the reactor, and an aerator pipe arranged in the bottom of the reactor is connected with the aeration device. The device is simple in structure and convenient to operate; and through aeration, the productivity of active materials is increased, the manganese and titanium co-doped carbon gel particles are fluidified and contact with pollutants sufficiently, so that the microcystin removing effect is improved, and the running cost is reduced.

Description

Microcystin device is removed in the Ti doped charcoal gel of manganese catalysis creeping discharge

Technical field

The utility model belongs to environment nanotechnology and water treatment field, relates in particular to the Ti doped charcoal gel of a kind of manganese catalysis creeping discharge and removes Microcystin device.

Background technology

Along with the quickening of process of industrialization, body eutrophication is day by day serious.In the poisons in freshwater of eutrophication, in the time having suitable physical and chemical condition, in the algae short period of time in water body, there is wawter bloom in amount reproduction gathering.In the time that wawter bloom occurs, frond is dead can discharge a large amount of algae toxin, the serious harm mankind and hydrobiological safety.The cyanophycean toxin that in fresh water, bluish-green Trentepohlia secretion produces is the widest class algae toxin of pollution range having been found that at present, and wherein Microcystin is that toxicity is the strongest, the Fresh Watcr Blue Algae toxin of acute hazard maximum.In recent years, along with taking place frequently of blue-green alga bloom, China has a lot of lakes and water system to be all faced with the problem that Microcystin spreads unchecked.

Surface discharge plasma is a kind of effectively discharge type of degradable organic pollutant.Liquid surface discharge plasma be at liquid along discharging in the gas phase of face, produce various active substances, comprise ozone, free radical etc., the type of material depends on gas phase composition.These active substances are dissolved in water by gas phase top layer, with the pollutant reaction in water.The free radical producing in creeping discharge process has strong oxidizing property, has played vital effect in contaminant degradation, but the moment property buried in oblivion of free radical makes it be difficult to contact with the pollutent in liquid phase.Therefore, adopt catalysis technique to improve the productive rate of free radical and ozone, the H that promotion is soluble in the aqueous phase ₂o ₂become free radical to have great importance Deng Substance Transformation.

Charcoal gel is the novel porous property of the one of development in recent years Carbon Materials, take mesoporous as main, has that density is little, specific surface area is large, porosity is flourishing and the advantage such as aperture is adjustable, very promising at sorbent material, support of the catalyst field.The character of metal-doped charcoal gelatinous material makes it as sorbent material or all very advantageous of catalyzer.Ozone and ultraviolet etc. that the Ti doped charcoal gel of manganese produces can make full use of impulsive discharge time, thus productive rate and the capacity usage ratio of free radical in surface discharge plasma system improved, realize the efficient degradation to organic pollutant.

Summary of the invention

The utility model, for the deficiencies in the prior art, provides the Ti doped charcoal gel of a kind of manganese catalysis creeping discharge to remove Microcystin device.

The Ti doped charcoal gel of manganese catalysis creeping discharge is removed Microcystin device and is comprised power supply, reactor and aerating apparatus, it is characterized in that: described power supply is high-voltage pulse power source, described pulse is steep-front spike pulse, pulsewidth is 1-2 μ s, described reactor is the insulative cylinders cylinder of a removable top and bottom, have the first centre hole in the center of reactor head, by the fixing positive electrode of flange for the first centre hole, have the second centre hole in the center of reactor bottom cover, by the fixing negative potential of flange for the second centre hole, positive electrode is connected with the positive and negative electrode of high-voltage pulse power source respectively with negative potential, reactor top covers and is provided with production well, between reactor bottom cover and negative potential, be provided with micro-aeration tube, micro-aeration tube is connected with aerating apparatus by air inlet port, make the Ti doped charcoal gel particle of the manganese fluidisation adding in device.Described aerating apparatus comprises gas meter and coupled pneumatic pump, and gas meter is connected with the air inlet port of sidewall of reactor bottom, and air inlet port is arranged on sidewall of reactor bottom;

In described reactor, the material of positive electrode and negative potential is stainless material, and positive and negative electrode is all threaded rod and disk fixed connection structure, has the aperture of 28 equally distributed diameter 8 mm on disk; Positive electrode is placed in 0.5-2cm place on liquid level, and negative potential is placed on reactor bottom microporous aeration device.

The beneficial effects of the utility model are: simple in structure, easy to operate, and by the air that exposes to the sun, improve the productive rate of active substance, and made the Ti doped charcoal gel particle of manganese fluidisation, fully contact with pollutent.Load on the productive rate that the transition metal manganese on charcoal gelatinous material surface and titanium can effectively improve hydroxyl free radical.Can enrichment Microcystin for the micropore-mesopore structure of the prepared charcoal gelatinous material of the volume of algae toxin, thus the removal effect of algae toxin improved, reduce running cost.The removal of algae toxin while can be used for drinking water resource alga eruption, also can be used for the removal of micro-Organic Pollutants in drinking water resource.

Accompanying drawing explanation

Fig. 1. the Ti doped charcoal gel of manganese catalysis surface discharge plasma reaction unit.

Embodiment

In order better to understand the utility model, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figure 1, the Ti doped charcoal gel of manganese catalysis creeping discharge is removed Microcystin device and is comprised power supply 1, reactor 2 and aerating apparatus, described power supply 1 is high-voltage pulse power source, described pulse is steep-front spike pulse, pulsewidth is 1-2 μ s, described reactor 2 is an insulative cylinders cylinder that has removable top and bottom, center at reactor 2 top covers 3 has the first centre hole, by the fixing positive electrode 5 of flange for the first centre hole, center at reactor 2 bottoms 4 has the second centre hole, by the fixing negative potential 6 of flange for the second centre hole, positive electrode 5 is connected with the positive and negative electrode of power supply 1 respectively with negative potential 6, reactor 2 top covers are provided with production well 7, reactor 2 sidewall bottoms are provided with aeration tube 9, by the air inlet port 8 of reactor 2 sidewall bottoms, be connected with gas meter 10 and pneumatic pump 11 successively.Wherein in reactor, the material of positive electrode 5 and negative potential 6 is stainless material, and positive and negative electrode is all threaded rod and disk fixed connection structure, on disk, there is the aperture of 28 equally distributed diameter 8 mm, described positive electrode is placed in 0.5-2cm place on liquid level, and negative potential is placed on reactor bottom microporous aeration device.

Claims (1)

1. Microcystin device is removed in the Ti doped charcoal gel of manganese catalysis creeping discharge, comprise power supply, reactor and aerating apparatus, it is characterized in that: described power supply is high-voltage pulse power source, described pulse is steep-front spike pulse, pulsewidth is 1-2 μ s, described reactor is the insulative cylinders cylinder of a removable top and bottom, have the first centre hole in the center of reactor head, by the fixing positive electrode of flange for the first centre hole, have the second centre hole in the center of reactor bottom cover, by the fixing negative potential of flange for the second centre hole, positive electrode is connected with the positive and negative electrode of high-voltage pulse power source respectively with negative potential, reactor top covers and is provided with production well, between reactor bottom cover and negative potential, be provided with micro-aeration tube, micro-aeration tube is connected with aerating apparatus by air inlet port, make the Ti doped charcoal gel particle of the manganese fluidisation adding in device, described aerating apparatus comprises gas meter and coupled pneumatic pump, and gas meter is connected with the air inlet port of sidewall of reactor bottom, and air inlet port is arranged on sidewall of reactor bottom,

In described reactor, the material of positive electrode and negative potential is stainless material, and positive and negative electrode is all threaded rod and disk fixed connection structure, has the aperture of 28 equally distributed diameter 8 mm on disk; Positive electrode is placed in 0.5-2cm place on liquid level, and negative potential is placed on reactor bottom microporous aeration device.

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