CN205710109U - Ultraviolet photolysis coupling microbial method processes the device of kitchen oil wastewater - Google Patents
Ultraviolet photolysis coupling microbial method processes the device of kitchen oil wastewater Download PDFInfo
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Abstract
The utility model relates to kitchen Catering wastes Fat wastewater treatment technology, it is desirable to provide a kind of device processing kitchen oil wastewater for ultraviolet photolysis coupling microbial method.This device includes reactor body, sets ultraviolet source above it；Reactor body top is uncovered shape, if aeration entrance, discharge outlet and water inlet；Inside reactor is divided into ultraviolet photolysis reaction zone and microbial degradation reaction zone by lateral partitions, and is realized connection and circulation by through hole and internal circulation pump；Microbial degradation reaction zone is provided with the some vertical baffles being parallel to each other and interlocking up and down, is loaded with cellular polyurethane material carrier.The utility model uses light porous Polyurethane carrier to couple ultraviolet photolysis and technology of biological membrane, provides good microenvironment for biofilm development；Compared with existing bioanalysis, the improved efficiency 20% of organic matter in degraded kitchen oil wastewater；Can be widely used for the water treatment field such as lake, ocean, municipal sewage, industrial wastewater and domestic sewage in rural areas.
Description
Technical field
The utility model belongs to the processing technology field of kitchen Catering wastes oil wastewater, is specifically related to ultraviolet photolysis coupling
Microbial method processes the device of kitchen oil wastewater.
Background technology
As the fast development of China's economy and the continuous of tourist industry are risen.The quantity of Peasants Joy in recent years just rapidly increases
Adding, the Catering wastes (leftovers leftovers) of discharge and washes also get more and more.Its complicated component, organic content is high, first when it
Punching: grease.This type organic, can be to environment if not treated and be discharged in rivers and lakes, and grease swims in water
Face forms oil film, hinders oxygen transmission, threatens the existence of aquatic animals and plants.
At present, bioremediation oil wastewater of degrading is great development prospect.Utilize the vital movement mistake of microorganism
Oil wastewater is shifted and converts by journey, using grease as the carbon source needed for its growth and the energy, and water under the effect of enzyme
Solution becomes glycerine and LCFA, is finally degraded to H2O and CO2Deng metabolite, and there is low cost, non-secondary pollution advantage,
And gain great popularity.
But the product LCFA after grease hydrolysis can produce inhibitory action, and suppression to the activity of microorganism
Effect strengthens with the increase of double bond number and isomers quantity of taking advantage of a situation.Inhibiting mechanism is that LCFA adsorbs at cell membrane
On, have impact on the mass transport process of substrate and product in metabolic process.
As high-level oxidation technology in water treatment procedure the oxidation technology with hydroxyl radical free radical as primary oxidizers, can be
The organic compound that some had in the short period labyrinth converts or degrades, be changed into that be readily biodegradable or
The less organic matter of toxicity, its process waste water have degraded thoroughly, the advantage such as non-secondary pollution, the time of staying be short, be current dirt
The big focus of in water treatment research one.
Including ultraviolet photolysis, it can make C-C, C-N key in organic compound break because absorbing the energy of ultraviolet light
Split, the hydroxyl of strong oxidizing property can be produced simultaneously, make organic matter gradually degrade, be a kind of method simple, effective.But from economy
Upper consideration, simple employing ultraviolet photolysis energy consumption is high, the reaction time is long, is also infeasible economically.
So, utilize bioanalysis and research in Fat wastewater treatment for the ultraviolet photolysis group technology between them
Complementary and synergy improves the treatment effeciency of waste water, has very important significance.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, provides a kind of ultraviolet light decoupling
Close microbial method and process the device of kitchen oil wastewater.
For solving technical problem, solution of the present utility model is:
A kind of device processing kitchen oil wastewater for ultraviolet photolysis coupling microbial method is provided, including box reaction
Device body, is arranged over ultraviolet source at reactor body；The top of reactor body is uncovered shape, or is provided with for airtight
Energy through the glass of ultraviolet light or lucite；
Setting aeration entrance in the lower section of one end of reactor body, top sets discharge outlet, and the lower section of the other end sets water inlet；
Inside reactor is divided into the ultraviolet photolysis reaction zone of top by one lateral partitions closed and the microbial degradation of lower section is anti-
Answer district's two parts；The lateral partitions being positioned at discharge outlet side is provided with through hole or opening, is used for connecting two reaction zones；
It in microbial degradation reaction zone, is provided with the some vertical baffles being parallel to each other and interlocking up and down, on vertical baffle
It is loaded with cellular polyurethane material carrier；The arrival end of internal circulation pump is connected in microbial degradation reaction zone, and its port of export then connects
To ultraviolet photolysis reaction zone.
As improvement, the upper edge of described lateral partitions and the lower edge of discharge outlet are positioned in same level.
As improvement, described ultraviolet source is the many ultraviolet lamp tubes being arranged in juxtaposition；Between ultraviolet source and lateral partitions
Away from for 6cm～10cm.
As improvement, described internal circulation pump is located in reactor body, or is located at outside reactor body.
Device described in the utility model can be used for ultraviolet photolysis coupling microbial method and processes kitchen oil wastewater.Concrete process
Process comprises the following steps:
A, microbe inoculation
It is installed on cellular polyurethane material carrier in reactor, then will gather from kitchen Catering wastes oil wastewater district
Sediment sample introduces reactor；Room temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time
Under conditions of HRT is 24h～36h, introduces kitchen Catering wastes oil wastewater 3～7 days in intermittent loading mode, make carrier table
Face attached microbial；
B, cultivation microorganism:
Introduce the nutrient solution of the oil wastewater of Catering wastes containing kitchen in intermittent loading mode in reactor, continue in room
Temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time HRT under conditions of be 24h～36h, cultivate
The microorganism of carrier surface attachment in step a；After cultivating 3～7 days, whole sediment samples and nutrient solution in getting rid of reactor,
The microorganism thickness of carrier surface attachment is 0.5-1.0mm；
The nutrient solution of the described oil wastewater of Catering wastes containing kitchen, is to add kitchen Catering wastes grease to give up in nutrient solution
Water mixes, and nutrient solution is 100: 1 with the volume ratio of kitchen Catering wastes oil wastewater；
Described nutrient solution is obtained by following manner configuration: take 65mg K2HPO4、25.5mg KH2PO4、133.8mg
Na2HPO4·12H2O、500mg NH4Cl、82.5mg CaCl2、67.5mg MgSO4·7H2O、0.75mg FeCl3·6H2O and
1000mL deionized water；After mixing, dissolving, regulation pH value is 7.0, and the 20min that sterilizes at a temperature of 121 DEG C, is i.e. cultivated
Liquid；
C, acclimated microorganism:
Room temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time HRT be 24h～36h's
Under the conditions of, introduce, in intermittent loading mode, the kitchen Catering wastes oil wastewater that COD mass concentration is incremented by by gradient, to step
In b, the microorganism of carrier surface attachment carries out gradient domestication, every 3 days as a gradient acclimation period, obtain after taming 9 days through
The microorganism of acclimation；
D, the process of kitchen Catering wastes oil wastewater
Room temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time HRT be 24h～36h's
Under the conditions of, use intermittent loading mode to introduce pending kitchen Catering wastes oil wastewater in step c at through gradient domestication
In the reactor of reason, carry out kitchen Catering wastes Fat wastewater treatment；In processing procedure, ultraviolet source is positioned over reactor
Above the surface 6cm～10cm of middle waste water, and ultraviolet light is kept to irradiate.
The domestication of described gradient refers to: enter by the COD mass concentration of kitchen Catering wastes oil wastewater order from low to high
Row domestication；The COD mass concentration of kitchen Catering wastes oil wastewater used by a rear gradient, is 1.0-1.5 times of previous gradient；?
The COD mass concentration of kitchen Catering wastes oil wastewater used is 1500mg/L eventually；Used by each gradient, waste water is by final utilization
Kitchen Catering wastes oil wastewater dilution form.
The COD mass concentration of described pending kitchen Catering wastes oil wastewater is 1200～1500mg/L, and pH value is
6.5-7.0。
The specific surface area of described cellular polyurethane material carrier is 4.8m2/ g, porosity is 88%
The wavelength of control ultraviolet light is 254nm, and power is 30W～40W, and ultraviolet ray intensity is 1.0mW/cm2。
Utility model principle:
Of the present utility model same reactor can be utilized to carry out ultraviolet photolysis reaction and microbial reaction simultaneously.Ultraviolet photolysis
The difficult LCFA being degraded by microorganisms in kitchen Catering wastes oil wastewater is made to be converted into the short chain that can be degraded by microorganisms
Aliphatic acid, microorganism carries out biochemical treatment simultaneously, thoroughly removes the pollutant in kitchen oil wastewater.The utility model ultraviolet light
The method of decoupling microbial method integrated treatment kitchen oil wastewater can give full play to ultraviolet photolysis and process waste water and bioanalysis
The advantage processing waste water, processes more thorough, in hgher efficiency to waste water.
Compared with prior art, it provides the benefit that the utility model:
1st, the utility model uses light porous Polyurethane carrier to couple ultraviolet photolysis and technology of biological membrane, this load
Physical efficiency provides good microenvironment for biofilm development；
2nd, ultraviolet photolysis and microbiological treatment waste water are combined by the utility model, compared with existing bioanalysis, and degraded meal
The improved efficiency 20% of organic matter in the oil wastewater of kitchen；
3rd, the utility model can be widely applied to the water such as lake, ocean, municipal sewage, industrial wastewater and domestic sewage in rural areas
Process field.
Brief description
In Fig. 1 the utility model, a kind of light decoupling microbial method integrated treatment kitchen Catering wastes oil wastewater is anti-
Answer device figure；
Description of symbols in figure: the 1st, ultraviolet source；2nd, water inlet；3rd, discharge outlet；4th, aeration entrance；5th, vertical baffle；6th, interior
Circulating pump.
The effect schematic diagram that kitchen oil wastewater is adsorbed by Fig. 2 the utility model embodiment empty carrier；
The effect schematic diagram that in Fig. 3 the utility model, kitchen oil wastewater is degraded by the independent microbial method of embodiment；
The schematic diagram that in Fig. 4 the utility model, kitchen oil wastewater is degraded by embodiment ultraviolet photolysis coupling microbial method.
Detailed description of the invention
The utility model, innovatively by ultraviolet photolysis with biodegradable be combined together, designs integrated reactor.Logical
Cross that (it is mainly characterized by specific surface area and is up to 4.8m to cellular polyurethane carrier2/ g, there is very high porosity 88% simultaneously,
Be conducive to microorganism habitat；Density and the nearly 1.01～1.02g/cm of aqueous phase3, can well circulate in water environment；Resistance to
Long property, recycling that can be permanently effective) utilization, as biomembranous carrier material, be greatly improved microorganism and deposit
Live and deposit efficiency.The utility model can make to be difficult to biodegradable LCFA can obtain conversion and degraded, can be significantly
Improve the treatment effeciency of kitchen oil wastewater.Ultraviolet photolysis is combined with Biofilm Environment, respective advantage can be made full use of,
Waste water for difficult degradation processes a new approach of opening up, and also establishes theory and practice basis for this technical method.
Apparatus structure illustrates:
In the utility model, process the device of kitchen oil wastewater for ultraviolet photolysis coupling microbial method, including box
Reactor body, be arranged over ultraviolet source 1 at reactor body；The top of reactor body is that uncovered shape (or is provided with
Pass through glass or the lucite of ultraviolet light for airtight energy, so can avoid the smell distributing in wastewater treatment process).
Setting aeration entrance 4 in the lower section of one end of reactor body, top sets discharge outlet 3, and the lower section of the other end sets water inlet
Mouth 2.Inside reactor is divided into the ultraviolet photolysis reaction zone of top and the microorganism fall of lower section by one lateral partitions closed
Solve reaction zone two parts；The lateral partitions being positioned at discharge outlet 3 side is provided with through hole or opening, for two reactions of connection
District；It in microbial degradation reaction zone, is provided with the some vertical baffles 5 being parallel to each other and interlocking up and down, vertical baffle 5 loads
Cellular polyurethane material carrier (specification is 12cm × 6cm × 0.8cm)；The arrival end of internal circulation pump 6 is connected to microbial degradation
In reaction zone, its port of export is then connected to ultraviolet photolysis reaction zone.
Ultraviolet source 1 can select the many ultraviolet lamp tubes being arranged in juxtaposition, and ultraviolet source 1 with the spacing of lateral partitions is
6cm～10cm.The upper edge of lateral partitions is positioned in same level with the lower edge of discharge outlet 3.
Internal circulation pump 6 can be located in reactor body, to keep the design of integrated reactor.Or, by interior circulation
Pump 6 is located at outside reactor body, to reduce the waterproof requirement of inner loop pump 6.
Device using method:
Kitchen Catering wastes oil wastewater, from water inlet 2 sample introduction, goes out sample through discharge outlet 3, introduces aeration from aeration entrance 4,
By internal circulation pump 6 as power source, collectively form internal circulation path with lateral partitions and vertical baffle 5.As need to be individually carried out
Ultraviolet photolysis is tested, and can unload the cellular polyurethane material carrier loading on vertical baffle 5；Carrying out independent microbial degradation
During test, vertical baffle 5 loads cellular polyurethane material carrier；When carrying out ultraviolet photolysis coupling microbiological test, dress
While carrying cellular polyurethane material carrier, open ultraviolet source 1.Reactor realizes overflow discharge according to inflow.
Embodiment 1:
The present embodiment is the adsorption test to kitchen Catering wastes oil wastewater, specifically comprises the following steps that
By understanding the absorption feelings to kitchen Catering wastes oil wastewater for the cellular polyurethane carrier that used of the utility model
Condition, before degrading kitchen Catering wastes oil wastewater, first carries out adsorption test with empty vectors, to determine to kitchen
The impact of oil wastewater COD mass concentration.
Carrying out the reaction condition of adsorption test: in constant temperature climatic chamber, temperature is 30 DEG C, aeration rate is 1L/min～
Under conditions of 2.5L/min, hydraulic detention time HRT are 24h～36h, use intermittent loading mode by pending COD matter
Amount concentration flow through in the reactor that volume is 2L at 1200mg/L～1500mg/L kitchen Catering wastes oil wastewater, and with wriggling
Pump creates an interior cycling condition.Reaction time 72h, every 6h sample analysis kitchen Catering wastes oil wastewater COD matter
The change of amount concentration.The assay method of COD mass: use HACH analyzer to measure.
As shown in Figure 2, within the initial 24h reaction time, preliminary examination COD mass concentration is that the kitchen grease of 1372mg/L gives up
Water, at the 6h starting, the concentration of absorption kitchen oil wastewater drops to 12.76%, and to 12h, the absorption of kitchen oil wastewater is dense
Degree is stable about 20%；In the 48h reaction time subsequently, preliminary examination COD mass concentration is respectively 1423mg/L and 1339mg/L
Kitchen oil wastewater, the concentration of the kitchen oil wastewater of absorption is always stable at 8%-10%.Its initial 24h kitchen grease
Waste strength is reactor itself, Inlet and outlet water pipe and the suction-operated to it for the carrier at the reason that decline bigger, 48h meal subsequently
Kitchen oil wastewater COD mass concentration is basically stable at 8%-10%, is owing to its absorption tends to saturation state.
Embodiment 2:
The present embodiment is individually to carry out microbial method test to kitchen Catering wastes oil wastewater, specifically comprises the following steps that
A, microbe inoculation
It is installed on cellular polyurethane material carrier in reactor, then will gather from kitchen Catering wastes oil wastewater district
Sediment sample introduces reactor；Room temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time
Under conditions of HRT is 24h～36h, introduces kitchen Catering wastes oil wastewater 3～7 days in intermittent loading mode, make carrier table
Face attached microbial；
B, cultivation microorganism:
Introduce the nutrient solution of the oil wastewater of Catering wastes containing kitchen in intermittent loading mode in reactor, continue in room
Temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time HRT under conditions of be 24h～36h, cultivate
The microorganism of carrier surface attachment in step a；After cultivating 3～7 days, whole sediment samples and nutrient solution in getting rid of reactor,
The microorganism thickness of carrier surface attachment is 0.5-1.0mm；
The nutrient solution of the described oil wastewater of Catering wastes containing kitchen, is to add kitchen Catering wastes grease to give up in nutrient solution
Water mixes, and nutrient solution is 100: 1 with the volume ratio of kitchen Catering wastes oil wastewater；
Described nutrient solution is the mixture of following component: 65mg K2HPO4、25.5mg KH2PO4、133.8mg
Na2HPO4·12H2O、500mg NH4Cl、82.5mg CaCl2、67.5mg MgSO4·7H2O、0.75mg FeCl3·6H2O and
1000mL deionized water；After mixed dissolution, regulation pH value is 7.0, and the 20min that sterilizes at a temperature of 121 DEG C, is i.e. cultivated
Liquid.
C, acclimated microorganism:
Room temperature be 30 DEG C of constant temperature, aeration rate be 1L/min～2.5L/min, hydraulic detention time HRT be 24h～36h's
Under the conditions of, introduce, in intermittent loading mode, the kitchen Catering wastes oil wastewater that COD mass concentration is incremented by by gradient, to step
In b, the microorganism of carrier surface attachment carries out gradient domestication, every 3 days as a gradient acclimation period, obtain after taming 9 days through
The microorganism of acclimation；
The domestication of described gradient refers to: enter by the COD mass concentration of kitchen Catering wastes oil wastewater order from low to high
Row domestication；The COD mass concentration of kitchen Catering wastes oil wastewater used by a rear gradient, is 1.0-1.5 times of previous gradient；?
The COD mass concentration of kitchen Catering wastes oil wastewater used is 1500mg/L eventually；Used by each gradient, waste water is by final utilization
Kitchen Catering wastes oil wastewater dilution form.
The present embodiment, for being not turned on uviol lamp, carries out independent biomembrane Degrading experiment.
Reaction condition: in constant temperature climatic chamber, temperature is 30 DEG C, aeration rate is 1L/min～2.5L/min, hydraulic retention
Under conditions of time HRT is 24h～36h, use intermittent loading mode by pending mass concentration 1200mg/L～
1500mg/L kitchen Catering wastes oil wastewater flows through in the reactor that volume is 2L, and follows in createing one with peristaltic pump
Ring condition.Reaction time 72h, every the change of 6h sample analysis kitchen Catering wastes oil wastewater (COD) concentration.The survey of COD
Determine method: use HACH analyzer to measure.
From the figure 3, it may be seen that the kitchen Catering wastes oil wastewater that preliminary examination COD mass concentration is 1250mg/L-1450mg/L, water
In the power time of staying is 24h, at first point of each sampling, kitchen Catering wastes oil wastewater COD mass concentration drops to
About 15%, have dropped 25%-30% to each second some kitchen Catering wastes oil wastewater COD mass concentration sampled；
Decline stable 40% respectively with the 3rd point and the 4th some kitchen Catering wastes oil wastewater COD mass concentration of post-sampling
With about 50%.
Illustrate when hydraulic detention time is 24h, kitchen Catering wastes oil wastewater COD mass concentration 1500mg/L with
When lower, independent biomembrance process carries out batch (-type) sample introduction to its kitchen Catering wastes oil wastewater, and the degradation effect of its concentration is final
It is basically stable at about 50%.
Embodiment 3:
First, the operation inoculated, cultivate and tame is carried out to microorganism, concrete steps and step a-c interior in embodiment 2
Hold identical.
Then step d, is the process to kitchen Catering wastes oil wastewater, concrete steps:
In constant temperature climatic chamber, temperature is 30 DEG C, aeration rate is that 1L/min～2.5L/min, hydraulic detention time HRT are
Under conditions of 24h～36h, use intermittent loading mode that pending kitchen Catering wastes oil wastewater is introduced warp in step c
In the reactor (volume 2L) of gradient acclimation, and create an interior cycling condition with peristaltic pump, carry out kitchen hogwash
Rubbish Fat wastewater treatment.Reaction time 72h, every the change of 6h sample analysis kitchen Catering wastes oil wastewater (COD) concentration
Change.The assay method of COD: use HACH analyzer to measure.
It in processing procedure, ultraviolet source is positioned over above the surface 6cm～10cm of waste water in reactor and keeps purple
Outer light irradiates, and the wavelength of control ultraviolet light is 254nm, and power is 30W～40W, and ultraviolet ray intensity is 1.0mW/cm2.Described treat
Processing kitchen Catering wastes oil wastewater COD mass concentration is 1200～1500mg/L, and pH value is 6.5-7.0.
Degraded rule under ultraviolet photolysis and biomembrane act on jointly for kitchen oil wastewater when Fig. 4 show periodic running
Rule.It can be seen that compare independent biomembrance process, ultraviolet photolysis coupled biological film is to kitchen Catering wastes oil wastewater
Degradation rate is the highest.When finally stablizing, its degradation efficiency improves more than 20% than independent biomembrance process.
Claims (5)
1. process a device for kitchen oil wastewater for ultraviolet photolysis coupling microbial method, including box reactor is originally
Body, it is characterised in that be arranged over ultraviolet source at reactor body；The top of reactor body is uncovered shape, or is provided with
Pass through glass or the lucite of ultraviolet light for airtight energy；
Setting aeration entrance in the lower section of one end of reactor body, top sets discharge outlet, and the lower section of the other end sets water inlet；One
Inside reactor is divided into the ultraviolet photolysis reaction zone of top and the microbial degradation reaction zone of lower section by the lateral partitions closed
Two parts；The lateral partitions being positioned at discharge outlet side is provided with through hole or opening, is used for connecting two reaction zones；
It in microbial degradation reaction zone, is provided with the some vertical baffles being parallel to each other and interlocking up and down, vertical baffle loads
Cellular polyurethane material carrier；The arrival end of internal circulation pump is connected in microbial degradation reaction zone, and its port of export is then connected to purple
Outer photolysis district.
2. device according to claim 1, it is characterised in that the upper edge of described lateral partitions and the downside of discharge outlet
Edge is positioned in same level.
3. device according to claim 1, it is characterised in that described ultraviolet source is the many uviol lamps being arranged in juxtaposition
Pipe.
4. device according to claim 1, it is characterised in that ultraviolet source is 6cm～10cm with the spacing of lateral partitions.
5. device according to claim 1, it is characterised in that described internal circulation pump is located in reactor body, or is located at
Outside reactor body.
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| CN201620479664.5U CN205710109U (en) | 2016-05-23 | 2016-05-23 | Ultraviolet photolysis coupling microbial method processes the device of kitchen oil wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858914A (en) * | 2016-05-23 | 2016-08-17 | 浙江大学 | Method and device for treating kitchen oil wastewater through ultraviolet decoupling microbiological method |
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2016
- 2016-05-23 CN CN201620479664.5U patent/CN205710109U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858914A (en) * | 2016-05-23 | 2016-08-17 | 浙江大学 | Method and device for treating kitchen oil wastewater through ultraviolet decoupling microbiological method |
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