CN201473358U

CN201473358U - Vortex photocatalysis sewage pretreatment device

Info

Publication number: CN201473358U
Application number: CN 200920080667
Authority: CN
Inventors: 李显寅; 周乃磊; 王中琪
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2009-05-07
Filing date: 2009-05-07
Publication date: 2010-05-19
Anticipated expiration: 2019-05-07

Abstract

The utility model discloses a vortex photocatalysis sewage pretreatment device. The inner wall of the cylinder body of the vortex photocatalysis sewage pretreatment device is provided with a spiral baffle plate, the middle is provided with an ultraviolet light generating device, and the lower part is provided with an annular aerator. A vent pipe is also used as a sediment discharging pipe, and the vortex photocatalysis sewage pretreatment device is also provided with a water outlet pipe and an overflow pipe. A sewage storage tank is communicated with a reactor cylinder body by a water inlet pipe and the overflow pipe, and a medicine storage cabinet is communicated with the water inlet pipe by a medicine feed pipe. Sewage enters a reacting device at a certain velocity and spirally flows in an ascending mode, and an aeration plate is used for oxygenation and mixing. At the same time, organic matters in the sewage rapidly react under the catalysis of hydrogen peroxide and ultraviolet light to be degraded to flow out from a drain pipe.

Description

Whirlwind-type photocatalysis sewage pretreatment unit

(1) technical field: the utility model relates to a kind of waste disposal plant, and particularly circular cylinder body and built-in spiral stream guidance structure and photochemical catalysis are the apparatus for treating sewage of feature.

(2) background technology: " reduction of discharging, energy-conservation, green, environmental protection " becomes the inevitable requirement of social development.The preciousness of water resources is unquestionable, and recycling sewage generated by making has received the concern of countries in the world as a kind of effective way that solves city water resource shortage, water environment pollution.The proposition of the construction of the lack of water present situation in the north, ecodistrict, ecological zone is raised to prior status to the dispersion treatment reuse of waste water inwardly.。

The distributing of sewage is handled the reuse just sanitary sewage and the factory effluent self-organizing system of departments such as residential quarter, school, office building, hotel, industrial and mining enterprises, the on the spot reuse of dirty (giving up) water after dispersion treatment.Distributed system need not the collection of large-scale sewage and the transport pipe of reuse water, can save a large amount of pipeline network constructions and maintenance cost, and is less to the influence of environment, is convenient near the user, satisfies the continuable development principle of recycling sewage generated by making.

At present, aspect wastewater treatment, invest little, working cost is low, treatment effect is good, is the target that wastewater processing technology is pursued.For sanitary sewage, the processing technological flow link that adopts is many usually, and floor space is big, and investment is high; And each link effect is single, long processing period, and efficient is low, the working cost height.Therefore traditional treatment method is difficult to be difficult to satisfy need of current social development, and is imperative to the small-scale dispersion treatment of sewage.

The anaerobism of different structure, aerobic and photocatalysis treatment facility (or equipment) are arranged both at home and abroad, and structure is huge, technical difficulty is big but all have, and shortcomings such as working cost height and long processing period can not satisfy present processing requirements.Chinese patent CN2388190Y discloses a kind of oilfield sewage pretreatment unit, it is made up of equalizing tank, oil trap, residual sea water pump, oil-collecting device, sewage guiding device, regulator of level etc., can be used to have the pre-treatment of smeary sewage, but this sewage pretreatment unit complex structure, the cost height, adaptability is not strong, can't satisfy needs of society.

(3) summary of the invention:

1, goal of the invention: the purpose of this utility model is that with the processing of sewage distributing, reuse be guiding theory, provide a kind of volume little, take up an area of few efficient height, and the practical quick pretreated new device of low-cost sewage, to adapt to the needs of handling reuse at the sewage generation initial stage.

2, the technical scheme the technical solution of the utility model is: a kind of whirlwind-type photocatalysis sewage pretreatment unit, comprise reactor shell 5 and top cover 12, and it is characterized in that spiral deflector 6 is arranged on its cylinder inboard wall; The centre of the spiral deflector 6 on the intravital top of tube is by the UV-light generating unit of being made up of the ultraviolet lampshade 10 of quartz uv lamp sleeve 8, ultraviolet lamp tube 9, band lamp socket; Ring type aerator 4 that the useful support 3 that is fixed on the cylinder inwall in the intravital bottom of tube supports and that be communicated with the air-supply duct 2 of the bottom of reactor shell 5; The bottom of reactor shell 5 has double as to arrange the blow-down pipe 1 of husky usefulness; Rising pipe 7 and upflow tube 11 are arranged at the top of reactor shell 5; Sewage storing box 13 is communicated with reactor shell 5 by water inlet pipe 16 and upflow tube 11; Storage medicine-chest 14 is communicated with water inlet pipe 16 by chemical feed pipe 15.

The utility model makes water inlet at the inner spiral upper upstream that forms of reactor (round cylindrical shell) owing to be that round cylinder inboard wall is provided with spiral deflector.Make that increasing the residence time of sewage in reactor prolongs, increase the contact area of water and UV-light simultaneously, promote carry out of photochemical catalysis chemical reaction organic matter degradation in the sewage.The plate-type aerator that is communicated with air-supply duct makes the pressure air that enters reactor enter in the sewage with small bubble.

The hydroxyl radical free radical that this reactor has mainly utilized UV-light and hydrogen peroxide reaction to generate on reaction theory, it can generate carbonic acid gas and water with mineralization of organic material in the sewage.Main reaction has: 1. H2O2+hv → 2OH; 2. OH+H2O2 → HO2+H2O; 3. HO2+H2O2 → OH+H2O+O2; 4. 2HO2 → H2O2+O2; 5. 2OH → H2O2; 6. HO2+OH → H2O+O2; 7. Organ+OH → ... → H2O+CO2.

In addition, the configuration quantity of the volume of reactor and ultraviolet lamp tube can be carried out reasonable disposition according to sewage load, different situations at handled waste water, can change the amount that drops into medicine in the dosing tank, strengthen and promote wastewater treatment process, make it water outlet and reach the greening reuse standard, reach the purpose of sewage dispersion treatment reuse nearby.When waste strength is very high, can form the backflow of water by rising pipe 7 or upflow tube 11 and sewage storing box 13 and water inlet pipe 16, carry out circular treatment, discharge again up to reaching emission standard.

3, beneficial effect: the utility model has been taken all factors into consideration the problem of other waste water disposal facility or equipment existence, the mechanism that has adopted hydrogen peroxide to combine with ultraviolet catalytic, slowed down lift velocity with cyclone structure, prolonged duration of contact, treatment effect is improved, meanwhile by aeration effect aggravation treating processes and play and stir and mixing effect, the increase of water outlet dissolved oxygen also for the later stage sewage work alleviate the processing burden.Can be used for Wastewater Pretreatment production, also can be used for the wastewater treatment experimental study, be applicable to the experimental study of handling various waste water, can change the quantity and the ultraviolet ray intensity of ultraviolet tube, can add the size of different medicaments or adjusting pharmaceutical quantities according to wastewater property.

The utility model device is inherited sewage dispersion treatment thought, accomplishes " handling reuse nearby nearby ".Collect and pre-treatment is carried out in reaction at the initial stage (living quarters) that waste water produces, the pre-treatment water outlet can be carried out purposes such as treegarden irrigation and view reuse, unnecessary sewage can enter city planting ductwork, and waste water in reaction process is because the increase of dissolved oxygen has also just alleviated the burden of sewage work's processing waste water indirectly.

The utility model apparatus structure is simple, adopts the cylinder cavity, built-in spiral deflector, ultraviolet lamp and plate-type aerator.Adopt photocatalysis technology rapidly and efficiently on the chemical reaction, the DeR of mainly utilizing the medicament hydrogen peroxide under ultraviolet catalytic, to take place in organism, and unnecessary hydrogen peroxide can become water and oxygen can't produce secondary pollution.Generally speaking, this reactor has reached from the source to be handled, and in time secondary waste water utilizing is reached making full use of of water resources, has avoided the loss of water resources in transportation simultaneously.

(4) description of drawings: the utility model also can be described further in conjunction with the embodiments.Fig. 1 is its structural representation, and Fig. 2 is its vertical view when removing lid.Among the figure, 1 for double as arrange husky usefulness blow-down pipe, 2 for air-supply duct, 3 for support, 4 for the ring type aerator, 5 for reactor shell, 6 for spiral deflector, 7 for rising pipe, 8 for the quartz uv lamp sleeve, 9 for ultraviolet lamp tube, 10 for the ultraviolet lampshade, 11 for upflow tube, 12 for top cover, 13 for the sewage storing box, 14 for the storage medicine-chest, 15 for chemical feed pipe, 16 for water inlet pipe.

(5) embodiment: embodiment of the present utility model is shown in Figure of description.Comprise reactor shell 5 and top cover 12, spiral deflector 6 is arranged on its cylinder inboard wall; The centre of the spiral deflector 6 on the intravital top of tube is by the UV-light generating unit of being made up of the ultraviolet lampshade 10 of quartz uv lamp sleeve 8, ultraviolet lamp tube 9, band lamp socket; Ring type aerator 4 that the useful support 3 that is fixed on the cylinder inwall in the intravital bottom of tube supports and that be communicated with the air-supply duct 2 of the bottom of reactor shell 5; The bottom of reactor shell 5 has double as to arrange the blow-down pipe 1 of husky usefulness; Rising pipe 7 and upflow tube 11 are arranged at the top of reactor shell 5; Sewage storing box 13 is communicated with reactor shell 5 by water inlet pipe 16 and upflow tube 11; Storage medicine-chest 14 is communicated with water inlet pipe 16 by chemical feed pipe 15.

Sewage tangentially enters in the reactor shell by the pump in the sewage storing box 13 by water inlet pipe 16 during use, sewage upwelling in the shape of a spiral under the guiding function of spiral deflector 6 then, flow velocity slows down and reaches steady state on reactor top and flow out from rising pipe 7 then in the uphill process.The sewage access to plant is fed in the sewage by chemical feed pipe 15 by the hydrogen peroxide that storage medicine-chest 14 is stored simultaneously.The photocatalytic degradation reaction takes place in the organism of sewage in device, mainly generate organism reaction in hydroxyl radical free radical and the sewage by hydrogen peroxide under the UV-irradiation of ultraviolet lamp tube 9 emissions, and its mineralising is become carbonic acid gas and water.If the organic matter of sewage excessive concentration can be back to by upflow tube 11 and carry out circular treatment in the sewage storing box 13.After the device long-time running, can produce sediment, can arrange sand by the husky pipe blow-down pipe 1 of the row of holding concurrently, so this device also have certain ability of removing sand in bottom of device.Blow-down pipe 1 can be used as the accident blow-down pipe and uses assurance reactor safety when device broke down.

Claims

1. a whirlwind-type photocatalysis sewage pretreatment unit comprises reactor shell (5) and top cover (12), it is characterized in that spiral deflector (6) is arranged on its cylinder inboard wall; The centre of spiral deflector (6) on the intravital top of tube has by quartz uv lamp sleeve (8), ultraviolet lamp tube 99), the UV-light generating unit formed of the ultraviolet lampshade (10) of band lamp socket; Ring type aerator (4) that the useful support (3) that is fixed on the cylinder inboard wall in the intravital bottom of tube supports and that be communicated with the air-supply duct (2) of the bottom of reactor shell (5); The bottom of reactor shell (5) has double as to arrange the blow-down pipe of husky usefulness (1); Rising pipe (7) and upflow tube (11) are arranged at the top of reactor shell (5); Sewage storing box (13) is communicated with reactor shell (5) by water inlet pipe (16) and upflow tube (11); Storage medicine-chest (14) is communicated with water inlet pipe (16) by chemical feed pipe (15).