Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, propose a kind of emulsion sewage disposal system and process side
Method, in solution prior art, emulsion sewage disposal technology level is low, running cost is high, be difficult to the technical problem of qualified discharge.
For reaching above-mentioned technical purpose, technical scheme provides a kind of emulsion sewage disposal system, including depending on
The air supporting of secondary connection, oil interceptor, anaerobic reactor, horizontal three phase fluidized bed, BAF, fibrous nodules filter tank, ultrafiltration pond;
Wherein, described anaerobic reactor includes:
Cylinder, the water inlet end of described cylinder is connected with the water side of described oil interceptor;
It is located at the three phase separator at described cylinder top;And
Drive the internal circulation apparatus that mixed liquor in described cylinder circulates up and down.
Preferably, described three phase separator includes gas skirt, mud chamber, drain pipe, exhaust chamber and reflecting plate, described gas collection
Cover outer rim is connected with described cylinder open top end, upper end, described mud chamber coaxially connected in described gas skirt lower surface,
Lower end is connected with described reflecting plate by multiple fixing posts, and formation sediment space between described mud chamber inwall and gas skirt,
Collection headroom is formed between described mud chamber outer wall and described gas skirt, described drain pipe one end connects with described sediment space,
The other end extends to outside described cylinder and is connected with the water inlet end of described horizontal three phase fluidized bed, described exhaust chamber and described gas collection
Space connects.
Preferably, described internal circulation apparatus includes the interior circulation water inlet pipe near cylinder top setting, near described cylinder
Interior recycling outlet, driving current that bottom is arranged are followed in described interior recycling outlet moves by described interior circulation water inlet pipe
Endless tube road pump and one controls described internal recycle pipeline pump and makees the controller that intermittence drives.
Preferably, being provided with a water inlet distributor in described cylinder, described water inlet distributor one end is near at the bottom of described cylinder
Portion is arranged, the other end is connected through described cylinder lateral wall the water side with described oil interceptor.
Preferably, described emulsion sewage disposal system includes a regulating reservoir, described regulating reservoir to include with described air supporting entering
Regulating reservoir body that water end (W.E.) connects and be located at the filter screen of regulating reservoir body water inlet end.
Preferably, described emulsion sewage disposal system also includes a sedimentation tank, and the water inlet end of described sedimentation tank is with described
Drain pipe connects, water side is connected with the water inlet end of described horizontal three phase fluidized bed.
Preferably, described sedimentation tank includes sedimentation tank body, and one end is connected with described drain pipe, the other end extends to described
Sedimentation tank intrinsic precipitation water inlet pipe, is located at the intrinsic downflow weir of described sedimentation tank, connects downflow weir and described level three
The overflow pipe of phase fluid bed, and one for detecting the dissolved oxygen meter of this internal liquid level dissolved oxygen amount of described sedimentation tank;Wherein, described water inlet
It is provided with a jet orifice and on pipe and controls mixed liquor jet velocity and the regulation valve of jetting height in described jet orifice.
Preferably, described water inlet pipe includes being vertically arranged at the intrinsic jet pipe of described sedimentation tank and connecting described jet
Pipe and the connecting tube of described cylinder, described jet orifice is arranged on described jet pipe.
Meanwhile, the present invention also provides for a kind of emulsion sewage water treatment method, comprises the steps:
(1) solid suspension in sewage and upper strata oil are removed successively by air supporting and oil interceptor;
(2) sewage after step (1) being processed carries out anaerobic fermentation process;
Sewage after (3) step (2) being processed carries out anaerobic treatment successively by horizontal three phase fluidized bed, oxygen of holding concurrently processes,
Aerobic Process for Treatment;
(4) sewage after step (3) being processed carries out biochemical treatment by BAF, and by the sewage after process
Carry out successively filtering and hyperfiltration treatment.
Upper strata oil, described step (2) also includes the mixture injection of the anaerobic sludge after being processed by anaerobic fermentation and sewage
And go out, and regulate the speed of injection and highly to make the oxygen content of reaction liquid level be 0~0.5mg/L.
Compared with prior art, the present invention is by air supporting, oil interceptor, anaerobic reactor, horizontal three phase fluidized bed, aeration life
Sewage is processed by thing filter tank, fibrous nodules filter tank, ultrafiltration pond successively, thus removes the suspension in sewage by physical-chemical process
The upper strata oil that granule and breakdown of emulsion are formed, removes COD, ammonia nitrogen, total phosphorus content in sewage by biochemical process, then by Physical mistake
Filter, the sewage after it processes can reach discharge standard.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Refer to Fig. 1, Fig. 2, The embodiment provides a kind of technical scheme and a kind of emulsion is provided
Sewage disposal system, including the air supporting 1 being sequentially connected with, oil interceptor 4, anaerobic reactor 2, horizontal three phase fluidized bed 5, aeration and biological
Filter tank 6, fibrous nodules filter tank 7, ultrafiltration pond 8;Wherein, described anaerobic reactor 2 includes:
Cylinder 21, the water inlet end of described cylinder 21 is connected with the water side of described oil interceptor 4;
It is located at the three phase separator 22 at described cylinder 21 top;And
Drive the internal circulation apparatus 23 that mixed liquor in described cylinder 21 circulates up and down.
Emulsion sewage is the emulsion in machining and oily waste water, and the pollution factor mainly contained has oils and fats, breast
Change liquid.Waste emulsified mixture is in addition to having the harm of general oily waste water, and due to the effect of surfactant, machinery oil is highly dispersed at
In water, animals and plants, aquatile are more easy to absorb, and biology is also harmful to by surfactant itself.Therefore the present embodiment is the most logical
Cross particle and partial suspended oil that air supporting 1 removes in sewage, then by oil interceptor 4, sewage is processed again, with
Separate upper strata therein oil, and the present embodiment use cohesion mixing method of saltouing that sewage is carried out breakdown of emulsion process in oil interceptor 4,
Being specially and adding electrolyte in emulsion sewage, the ion of electrolyte occurs strong hydration i.e. to strive in emulsion
Water effect, makes the free water molecule in emulsion decrease, and oil droplet is produced dehydration, thus destroys emulsion oil droplet
Hydrated sheath, has neutralized the electrical of oil droplet, destroys its double electrical layers, thus oil droplet loses stability, produces cohesion existing
As, and by oil interceptor 4 by separating of oil for the upper strata after cohesion;Breakdown of emulsion process after sewage in COD removal rate reach 85%, but
In sewage, COD content is the highest, and it easily produces inhibitory action to follow-up biochemical reaction, therefore the present embodiment first passes through anaerobism
Reactor 2 carries out anaerobic treatment to sewage, to reduce COD content in sewage, is then carried out successively by horizontal three phase fluidized bed 5
Anaerobic treatment, oxygen of holding concurrently process, Aerobic Process for Treatment, and the horizontal three phase fluidized bed of the present embodiment 5 uses the Authorization Notice No. to be
Disclosed in the Chinese invention patent of CN104030441B, a kind of horizontal is three-phase biologic fluidized-bed, and it can carry out at anaerobism successively
Reason, oxygen of holding concurrently process and Aerobic Process for Treatment, thus reduce COD, the NH in sewage3-N, SS content, and then follow-up aeration and biological
The biochemical treatment in filter tank 6;And after BAF 6 carries out biochemical treatment, can reduce further the COD in sewage, ammonia nitrogen and
Total phosphorus content, after the sewage after process carries out prefiltration and ultrafiltration successively by fibrous nodules filter tank 7, ultrafiltration pond 8, can directly be carried out
Reuse.
Wherein, above-mentioned Authorization Notice No. be CN104030441B Chinese invention patent disclosed in a kind of horizontal three interpromoting relation in five elements
Fluidized beds is the sewage-treatment plant of a kind of Activated sludge-biofilm, and this horizontal is three-phase biologic fluidized-bed has aeration, carrier (suspension
Filler), the device such as carrier separator so that it is becoming " biomembrane of flowing " reactor, biofilm development is filled out in the suspension of flowing
On material, in the other water body of floating stuffing, then there are countless free microorganisms and tiny activated sludge, these activity
Mud has plenty of self-assembling formation, but is not adhered to the activated sludge of floating stuffing, has plenty of the biology come off on floating stuffing
Film shears, through waterpower, air, the activated sludge formed, and this system is exactly typical Activated sludge-biofilm sewerage, Activated sludge-biofilm system
In system, free microorganism and activated sludge act on jointly with the biomembrane being attached on flowing carrier, thus can preferably drop
COD, NH in low sewage3-N, SS content.
Fiber-ball filter media in fibrous nodules filter tank 7 is made up through modification of special fibre, and its cellosilk has hydrophilic and oleophobic
Property, to oily and float high adsorption capacity, regeneration rate by force, even if soaking for a long time in crude oil, room temperature also can be utilized
Water cleans up at short notice.And modified fibrous globule filtering material is chondritic, the cellosilk used by filtrate has preferably
Elasticity, and string diameter is relatively thin, and the fiber-ball filter media specific surface area made is relatively big, the filtering layer that fiber-ball filter media is formed in the filter
Hole tapers into along water (flow) direction, defines preferable up big and down small distribution of pores state, enhances retaining power, more favorably
In oil and the removal of float.
Eventually passing ultrafiltration pond 8 to process, ultrafiltration is a kind of membrane separation technique that can be carried out by solution and purify and separate.Ultrafiltration
Membranous system is with ultrafiltration membrane filaments as filter medium, and the pressure differential of film both sides is the solution separating device of driving force.Ultrafilter membrane is only permitted
Solvent (such as hydrone), inorganic salt and the small organic molecule permitted in solution pass through, and by the float in solution, colloid, egg
The macromolecular substances such as white matter and microorganism retains, thus reaches the purpose purifying and separating.
When emulsion sewage specifically processes, need larger particles impurity is processed, therefore emulsion described in the present embodiment
Sewage disposal system includes that a regulating reservoir 9, described regulating reservoir 9 include the regulating reservoir body 91 being connected with described air supporting 1 water inlet end
And it is located at the filter screen 92 of regulating reservoir body 91 water inlet end, when filter screen 92 is arranged, inclination Jiangdu of its relative level is typically arranged
It is 60~75 °, is preferably arranged to 70 °, to strengthen its solid impurity filter effect.After contaminant filter, sewage can enter regulating reservoir
In body 91, can be adjusted the pH of sewage, water quality, the water yield, the sewage after regulation can enter air supporting 1 and process.
In order to improve the sewage treating efficiency of the present embodiment anaerobic reactor 2, thus preferably reduce COD in sewage and contain
Measuring, be provided with a water inlet distributor 24 in cylinder 21 described in the present embodiment, described water inlet distributor 24 one end is near described cylinder
Arrange bottom 21, the other end is connected through described cylinder 21 sidewall the water side with described oil interceptor 4.The present embodiment is by cylinder
Intermittent water inflow bottom 21, beneficially sludge bulking promote sewage treating efficiency.
Further, internal circulation apparatus 23 described in the present embodiment includes the interior circulation water inlet pipe arranged near cylinder 21 top
231, near described cylinder 21 bottom arrange interior recycling outlet 232, drive current by described interior circulation water inlet pipe 231 to institute
Internal recycle pipeline pump 233 and a described internal recycle pipeline pump 233 of control of stating the motion of interior recycling outlet 232 drive as intermittence
Dynamic controller 234, its specific works flow process is: internal recycle pipeline pump 233 drive the sewage of cylinder 21 upper end by interior circulate into
Water pipe 231 moves to interior recycling outlet 232, and the sewage in interior recycling outlet 232 has under internal recycle pipeline pump 233 acts on
There is certain flow rate to enter bottom cylinder 21, and then the mud staticly settled bottom cylinder 21 is produced stirring action, make mud swollen
Swollen, improve anaerobic reaction efficiency, it is possible to control the Water discharge flow speed of interior recycling outlet 232 by controlling internal recycle pipeline pump 233,
I.e. control the water inlet flow velocity bottom cylinder 21, it is achieved the control to sludge bulking degree.Water inlet stirring certain time bottom cylinder 21
After, internal recycle pipeline pump 233 stops driving, and anaerobic reaction fully occurs, and the bubble of generation rises and pass through three phase separator 22
Carry out three phase separation;After standing certain time, being again started up internal recycle pipeline pump 233, mud reexpands, and again promotes anaerobism
Reaction.Under above-mentioned intermittent water inlet, stirring, in cylinder 21, intermittent quickening anaerobic reaction, advantageously ensures that entirety sets
The stability of received shipment row, is also beneficial to the water outlet of three phase separator 22, stability of giving vent to anger.
Wherein, three phase separator 22 described in the present embodiment includes gas skirt 221, mud chamber 222, drain pipe 223, exhaust chamber
224 and reflecting plate 225, described gas skirt 221 outer rim is connected with described cylinder 21 open top end, described mud chamber 222
Upper end is coaxially connected to be connected with described reflecting plate 225 by multiple fixing posts 226 in described gas skirt 221 lower surface, lower end, and
Sediment space, described mud chamber 222 outer wall and described gas skirt 221 is formed between described mud chamber 222 inwall and gas skirt 221
Between formed collection headroom, described drain pipe 223 one end connects with described sediment space, the other end extends to outside described cylinder 21
And be connected with the water inlet end of described horizontal three phase fluidized bed 5, described exhaust chamber 224 connects with described collection headroom.
Described gas skirt 221 is in umbrella, thus covers whole cylinder 21 upper end, is conducive to increasing gas collecting efficiency.Exhaust chamber
224 may be disposed at gas skirt 221 top.Due to gas skirt 221, to have area big, enough strong in order to ensure that it has
Spending, gas skirt 221 upper surface described in the present embodiment is provided with multiple support bar 227, and multiple described support bars 227 are along described gas collection
Covering 221 tops is that lonizing radiation are evenly arranged.
Mud chamber 222 described in the present embodiment is in tubular and internal diameter is from top to bottom gradually reduced, so that described mud chamber
222 inwalls form a taper sedimentation face, in order to increase solid-liquid separation effect, settle between face and horizontal plane described in the present embodiment
Angle is set to 30~60 °, preferably 45 °.
Reflecting plate 225 is tapered and is all coaxially disposed with described mud chamber 222, gas skirt 221, multiple described fixing posts
226 equal one end are connected with described mud chamber 222, the other end is connected on the conical surface of described reflecting plate 225, adjacent two fixing posts
Being formed with the solidliquid mixture entrance connected with sediment space between 226, corresponding, solidliquid mixture is at mud chamber 222 warp
After crossing precipitation, concentration, its proportion is relatively big, therefore can precipitate, along the taper of mud chamber 222, the flowing that faces down, and from solidliquid mixture
Entrance flows out, and is then precipitated to bottom cylinder 21.Reflecting plate 225 arranges tapered, is conducive to avoiding accumulating on reflecting plate 225
Mud, it is simple to mud has solidliquid mixture entrance to flow out smoothly.The fixing post 226 of the present embodiment is along described mud chamber 222 circumference
It is evenly arranged, and the equal one end of multiple fixing post 226 is connected on the inwall of mud chamber 222, owing to solid-liquid is easily mixed by fixing post 226
The turnover of compound produces certain inhibition, therefore the fixing post 226 of the present embodiment is preferably arranged to three.
Emulsion sewage disposal system described in the present embodiment also includes a sedimentation tank 3, the water inlet end of described sedimentation tank 3 and institute
State that drain pipe 223 connects, water side is connected with the water inlet end of described horizontal three phase fluidized bed 5.Concrete, described sedimentation tank 3 wraps
Including sedimentation tank body 31, the precipitation that one end is connected with described drain pipe 223, the other end extends in described sedimentation tank body 31 is entered
Water pipe 33, is located at the downflow weir 32 in described sedimentation tank body 31, and connection downflow weir 32 overflows with described horizontal three phase fluidized bed 5
Flow tube 35, and one for detecting the dissolved oxygen meter 34 of liquid level dissolved oxygen amount in described sedimentation tank body 31;Wherein, described precipitation water inlet pipe
It is provided with a jet orifice 332a and on 33 and controls mixed liquor jet velocity and the regulation of jetting height in described jet orifice 332a
Valve 36.
The present embodiment anaerobic reactor 2 is intermittent reactor, when intermittent anaerobic reactor 2 is in into water state,
The sewage containing anaerobic sludge after anaerobic reaction is then in out water state, mixing of anaerobic sludge, sewage and a small amount of methane gas
Compound enters water inlet pipe, and the solidliquid mixture bigger containing mud proportion flow to sedimentation tank body 31 end from the water side of water inlet pipe
Portion, and then discharged by discharge pipeline 37;Partial sludge and sewage containing methane gas are then spouting from jet orifice 332a,
So that the solid-liquid ejected drops down onto in sedimentation tank body 31, and in sedimentation tank body 31, form solid-liquid-gas three phase reaction
Interface, this three-phase reaction interface is liquid level in sedimentation tank body 31, arranges regulation valve 36 with control in jet orifice 332a simultaneously
Making the flow velocity sprayed and the height with reaction interface, concrete Tong Guo dissolved oxygen meter 34 detects the interior liquid level of sedimentation tank body 31
Dissolved oxygen amount, the dissolved oxygen amount of the liquid level of control and regulation valve 36 to dissolved oxygen meter 34 detection is 0~0.5mg/L, preferably 0.4~0.5mg/
L, so that the red bacterium of reaction interface enriching nitrite, and then make ammonia nitrogen in the solidliquid mixture after injection form nitrous acid
Salt, the methane in solidliquid mixture is the most oxidized, and after reaction, the upper liquid containing nitrite enters level by overflow pipe 35
The anaerobic reaction stage of three phase fluidized bed 5 carries out anti-nitration reaction, and it advantageously reduces ammonia nitrogen in sewage content.
In order to be conducive to the carrying out reacted, described precipitation water inlet pipe 33 includes being vertically arranged in described sedimentation tank body 31
Jet pipe 332 and connect the connecting tube 331 of described jet pipe 332 and described drain pipe 223, described jet orifice 332a is arranged at
On described jet pipe 332.
Owing to the solidliquid mixture of injection needs to be fully contacted with air and react, should height when jet orifice 332a is arranged
Liquid level in sedimentation tank body 31, therefore jet orifice 332a described in the present embodiment is near the pond mouth end face of described sedimentation tank body 31
Place plane is arranged.And in order to avoid solidliquid mixture injection to sedimentation tank body 31 is outside, jet orifice 332a can be located at institute
State below the plane of mouth end face place, sedimentation tank body 31 pond 20~50cm, typically may be disposed at slightly above downflow weir 32 upper surface.
During jet orifice 332a injection, easily occur vibration to cause spraying harmonious reduction, therefore sedimentation tank 3 described in the present embodiment is also
Including in cross fixed support 38, four free ends of described fixing 38 framves are both secured to described downflow weir 32, described
Described jet pipe 332 it is connected in the middle part of fixed support.
And, the present embodiment for the ease of the transition processing of sewage, horizontal three phase fluidized bed 5 and BAF 6,
The water side between BAF 6 and fibrous nodules filter tank 7 and ultrafiltration pond 8 is provided with transition pond 10.
The waste water processes of the present embodiment emulsion sewage disposal system is as follows: first passes through regulating reservoir and carries out tentatively mistake
Filter, and regulate the pH of sewage, water quality, the water yield, remove the particle in sewage and partial suspended oil subsequently into air supporting, and lead to
Crossing the oil of the upper strata after oil interceptor again carries out breakdown of emulsion process and separates breakdown of emulsion sewage, in the sewage after breakdown of emulsion process, COD removes
Rate reaches 85%, but in sewage, COD content is the highest, and it easily produces inhibitory action to follow-up biochemical reaction;Therefore this reality
First pass through anaerobic reactor after executing the process of example breakdown of emulsion and sewage is carried out anaerobic treatment, to reduce COD content in sewage, then lead to
Cross horizontal three phase fluidized bed and carry out anaerobic treatment, hold concurrently oxygen process, Aerobic Process for Treatment successively, thus reduce COD, the NH in sewage3-N、
SS content, and then the biochemical treatment of follow-up BAF;And after BAF carries out biochemical treatment, can enter
One step reduces COD, ammonia nitrogen and the total phosphorus content in sewage, and the sewage after process is carried out successively by fibrous nodules filter tank, ultrafiltration pond
Filtering and after ultrafiltration, remove float, oil droplet and the macromolecular substances in sewage, the present embodiment can directly be carried out back after processing
With.
Compared with prior art, the present invention is by air supporting, oil interceptor, anaerobic reactor, horizontal three phase fluidized bed, aeration life
Sewage is processed by thing filter tank, fibrous nodules filter tank, ultrafiltration pond successively, thus removes the suspension in sewage by physical-chemical process
The upper strata oil that granule and breakdown of emulsion are formed, removes COD, ammonia nitrogen, total phosphorus content in sewage by biochemical process, then by Physical mistake
Filter, the sewage after it processes can reach discharge standard.
The detailed description of the invention of present invention described above, is not intended that limiting the scope of the present invention.Any basis
Various other that the technology design of the present invention is made change and deformation accordingly, should be included in the guarantor of the claims in the present invention
In the range of protecting.