A kind of wastewater from car washer photocatalysis advanced treatment apparatus
Technical field
The utility model belongs to technical field of sewage, is related to a kind of wastewater from car washer photocatalysis advanced treatment apparatus.
Background technology
It realizes the reuse of wastewater from car washer, is conducive to alleviate the imbalance between supply and demand of urban water, the pollution owner in wastewater from car washer
To be oils, surfactant, silt, suspended matter, coagulation, precipitation, filtration treatment are the effective ways of wastewater from car washer pretreatment,
But the water after above-mentioned process still remains a large amount of surfactant, and metal ion causes to go out water bubble after continuous reuse, hang
Float is more, and coloration is higher, be discharged after long-time service it is smelly, therefore limit common process carry out wastewater from car washer processing should
With therefore, a kind of advanced treatment system for conventional treatment process need be developed.
Invention content
The purpose of this utility model is to solve the common coagulation of wastewater from car washer on existing market, precipitation, at filtering technique
Water still residual fraction surfactant, metal ion after reason, it is more to lead to go out after continuous reuse water bubble, suspended matter, coloration
It is higher, smelly problem is discharged after long-time service, and provide it is a kind of it is with strong points, small, flow is simple, treatment effect is steady
Fixed, high degree of automation wastewater from car washer photocatalysis advanced treatment apparatus.
Specific technical solution is as follows used by the utility model:
Wastewater from car washer photocatalysis advanced treatment apparatus, apparatus main body is interior to be divided into activated carbon adsorption and photocatalytic-oxidation by partition board
Change two chambers, two chambers are connected by water hole;Photocatalysis carrier and ultraviolet source are equipped in photochemical catalytic oxidation room, light is urged
Changing carrier has multigroup, is arranged at intervals on the different cross section of photochemical catalytic oxidation room, ultraviolet source, which interts, is arranged on adjacent photocatalysis
Between carrier;Photochemical catalytic oxidation room side wall is equipped with water inlet, air inlet and the exhaust for connecting photochemical catalytic oxidation room headspace
Mouthful;Photochemical catalytic oxidation room is provided with ripple micro-filtration plate close to partition board side, for being inhaled to entering activated carbon from photochemical catalytic oxidation room
The waste water of alcove is filtered;Photochemical catalytic oxidation room bottom is also equipped with aerating system;It is filled in the activated carbon adsorption room
Active charcoal adsorption layer offers discharge outlet on side wall.
Wastewater from car washer is pre-processed through automatic backwash surface filtration device, removes silt, suspended matter, glue in waste water
Body, grease, water outlet enter photocatalysis advanced treatment apparatus, decompose remaining organic matter in water through ultraviolet catalytic oxidation first,
Have the function that sterilization, deodorization, decoloration simultaneously and eliminate foam, photochemical catalytic oxidation water outlet retains photocatalytic-oxidation through ripple micro-filtration plate
The metal ion suspended matter that change process is precipitated is discharged and is discharged after activated carbon adsorption layer removes remaining micro-content organism, makes to give up
Water reaches discharge standard.
Preferably, the ultraviolet source is inserted by the circular hole being opened on apparatus main body in photochemical catalytic oxidation room,
And sealing is kept between apparatus main body;The photocatalysis carrier is fixed on by slot on apparatus main body, with easy disassembly
It replaces.
Preferably, the aerating system is in two sub-sections, a portion is located at photocatalysis carrier base, trepanning hole
Diameter 1-3mm, the oxygen content in principal security photocatalysis region>2mg/L;Another part is located at ripple micro-filtration plate side, trepanning
Aperture 3-5mm, the micro- filter cloth surface of principal security ripple form enough disturbances, reduce deposition of the suspended matter in filter membrane surface.
Preferably, the photocatalysis carrier has the porous material of mixed crystal type nanometer titanium dioxide photocatalyst for area load
Material, photocatalyst particle size range 5-40nm.
Preferably, the ripple micro-filtration plate is folded into Z-shaped skeleton using the stainless steel in uniformly distributed 1-10mm apertures, outside
Micro-filtration filter cloth is served as a contrast, filtering filter cloth aperture is more than or equal to 1 micron, the metal ion aoxidized in Photocatalytic Oxidation is formed
The retention removal of metal oxide suspended matter.
Preferably, the ultraviolet source is made of ultraviolet lamp and quartz socket tube, ultraviolet lamp is built in quartz socket tube.
Quartz socket tube can form ultraviolet lamp the protective cover of one waterproof, while not influence the transmitting of ultraviolet light.
Further, the ultraviolet lamp uses two waveband light source, and wavelength is respectively 185nm and 253.7nm.In 185nm
Length ultraviolet light can directly degrade partial organic substances, in addition, ozone can be converted the oxygen to, playing dehydration, deodorization and degradation has
The effect of machine object, under the action of 253.7nm length ultraviolets pipe and photocatalyst matchmaker, oxygen and ozone in water can be exchanged into hydroxyl certainly
By base, photocatalysis effect is improved.
Preferably, active carbon particle particle size range 1-10mm in the activated carbon adsorption layer.
Preferably, the photochemical catalytic oxidation room bottom is equipped with drain, it can when device needs to clean or is deactivated
To be easily vented to internal waste water.
It, can be from when internal waste water fills preferably, the side wall of the activated carbon adsorption room is equipped with overflow port
Overflow port is discharged, in order to avoid damage device.
In the utility model, wastewater from car washer warp in most surfaces activating agent, residual organic matter, metal ion, bacterium,
Stink is removed through photochemical catalytic oxidation, and through active carbon layer Adsorption, device processing water outlet can be direct for remaining pollutant and coloration
Reuse or as sodium filter and reverse osmosis water inlet, has very wide application prospect.
Description of the drawings
Fig. 1 is wastewater from car washer photocatalysis advanced treatment apparatus planar structure schematic diagram;
Fig. 2 is the a-a diagrammatic cross-sections of wastewater from car washer photocatalysis advanced treatment apparatus in Fig. 1;
Reference numeral in figure:Apparatus main body 1, water inlet 2, air inlet 3, exhaust outlet 4, drain 5, overflow port 6, discharge outlet
7th, partition board 8, ripple micro-filtration plate 9, aerating system 10, photocatalysis carrier 11, ultraviolet source 12.
Specific embodiment
The embodiment of the utility model is described in detail with reference to the accompanying drawings and embodiments.
As illustrated in fig. 1 and 2, it is a kind of wastewater from car washer photocatalysis advanced treatment apparatus in the present embodiment, apparatus main body 1 is in
Rectangular-shape, internal cavities are divided into activated carbon adsorption and photochemical catalytic oxidation two chambers by partition board 8.Pass through between two chambers
Several water holes connection on partition board 8, realizes the flowing of waste water.Photocatalysis carrier 11 and ultraviolet is equipped in photochemical catalytic oxidation room
Light source 12.Plate, area load mixed crystal type nanometer titanium dioxide photocatalyst is made using porous material in photocatalysis carrier 11, and light touches
Matchmaker particle size range 5-40nm, photocatalyst is using inorganic gluing knot or is sintered to fix on the surface of photocatalysis carrier.Ultraviolet source 12,
It is made of ultraviolet lamp and the quartz socket tube being set in outside ultraviolet lamp, ultraviolet lamp uses two waveband light source, and wavelength is respectively 185nm
And 253.7nm, it can directly degrade partial organic substances in 185nm length ultraviolets light, in addition, ozone can be converted the oxygen to, play
Dehydration, deodorization and the effect of degradation of organic substances, under the action of 253.7nm length ultraviolets pipe and photocatalyst matchmaker, oxygen in water and
Ozone can be exchanged into hydroxyl radical free radical, improve photocatalysis effect.Photocatalysis carrier 11 has multigroup, is evenly spaced and is set to light and urges
On the different cross section for changing oxidizing chamber, and the cross section of photochemical catalytic oxidation room is preferably completely covered so that waste water must be followed by
Different photocatalysis carriers 11 could enter subsequent region.Ultraviolet source 12 is interspersed to be arranged between adjacent photocatalysis carrier 11.
The ultraviolet lamp and quartz socket tube of ultraviolet source 12 are inserted by the circular hole being opened on apparatus main body 1 in photochemical catalytic oxidation room, and
Sealing is kept between apparatus main body 1, and photocatalysis carrier 11 is fixed on by slot on apparatus main body 1, when requiring replacement
It can directly extract and reinstall new carrier.Photochemical catalytic oxidation room side wall is equipped with water inlet 2, air inlet 3 and exhaust outlet 4,
The wherein needs of exhaust outlet 4 are located at top, and to connect photochemical catalytic oxidation room headspace, inside aeration is discharged.Photochemical catalytic oxidation
Room bottom is equipped with drain 5.Photochemical catalytic oxidation room is provided with ripple micro-filtration plate 9 close to 8 side of partition board, and ripple micro-filtration plate is by inserting
Slot is fixed on apparatus main body, and is sealed with sealing joint strip, lays full entire cross section, for from photochemical catalytic oxidation
The waste water that room enters activated carbon adsorption room is filtered.Ripple micro-filtration plate is folded into Z using the stainless steel in uniformly distributed 1-10mm apertures
Word skeleton, outer lining micro-filtration filter cloth, filtering filter cloth aperture are more than or equal to 1 micron, the gold that will be aoxidized in Photocatalytic Oxidation
It is re-fed into subsequent activated carbon adsorption room after belonging to the metal oxide suspended matter retention removal that ion is formed.
Photochemical catalytic oxidation room bottom is also equipped with aerating system 10, and in the present embodiment, the pipeline of aerating system is rectangular
Setting, a short side are connected with air inlet 3, and two long sides sequentially pass through the bottom of each photocatalysis carrier 11, and another short side is tight
It is set by ripple micro-filtration plate 9, solarization air cap is opened up on pipeline.Therefore, aerating system can in two sub-sections, and a portion is used
It is aerated in photocatalysis carrier, solarization air cap open pore size 1-3mm, the oxygen content in principal security photocatalysis region>2mg/
L, another part is for being aerated ripple micro-filtration plate, solarization air cap open pore size 3-5mm, the micro- filter cloth table of principal security ripple
Face forms enough disturbances, reduces deposition of the suspended matter in filter membrane surface.
Filled with activated carbon adsorption layer in activated carbon adsorption room, active carbon particle particle size range 1- in activated carbon adsorption layer
10mm.Discharge outlet 7 and overflow port 6 are offered on the side wall of activated carbon adsorption room.
It is as follows using the wastewater from car washer photocatalysis advanced treatment apparatus operation method of the device:
Photochemical catalytic oxidation chamber, aerating system 10 are entered by water inlet 2 through coagulation and filtration pretreated wastewater from car washer
Unlatching, ultraviolet source 12 are opened, and under the action of ultraviolet light of the 185nm wavelength of ultraviolet source 12, can be had the part in waste water
Machine object direct photolysis;Or partial oxidation is converted into ozone, and make in the photocatalysis of 253.7nm ultraviolet lights and nano-titanium dioxide
Under, be converted into hydroxyl radical free radical, and then the organic matter in waste water decomposed, the lower valency metal ion in waste water by air,
The electron hole of ozone or valence band aoxidizes, and the metal ion solubility after oxidation reduces, and suspended particulate is formed, through ripple micro-filtration plate
9 Filtration Filtrations enter activated carbon adsorption layer, after activated carbon adsorption layer further removes remaining trace contaminant, from discharge outlet
7 discharges carry out reuse carwash.
Embodiment:
Using above device (structure is identical, repeats no more), using wastewater from car washer as process object, design treatment water
200L/h, plant bulk long 0.9m, height 0.7m, width 0.45m, 185,253.7nm two wavebands low pressure mercury lamp 6, He Jigong
Rate 270w, 6 groups of photocatalysis carrier, 1.2m2, titanium dioxide size 20nm, collosol and gel is sintered to fix after soaking stagnant lifting, activated carbon
Size 2-3mm, photocatalytic region residence time 50min, activated carbon adsorption area residence time 15min, influent COD, surfactant
Concentration is respectively 80mg/L and 3mg/L, is discharged COD and surfactant concentration is less than 30mg/L and 0.1mg/L, fully meet and wash
Automobile-used water requirement.
Embodiment described above is a kind of preferable scheme of the utility model, and so it is not to limit this practicality
It is novel.Those of ordinary skill in technical field, can be in the case where not departing from the spirit and scope of the utility model
It makes a variety of changes and modification.Therefore the technical solution that all modes for taking equivalent substitution or equivalent transformation are obtained, all falls within
In the scope of protection of the utility model.