CN208345976U - A kind of decentralized type sewage processing unit - Google Patents
A kind of decentralized type sewage processing unit Download PDFInfo
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- CN208345976U CN208345976U CN201820440830.XU CN201820440830U CN208345976U CN 208345976 U CN208345976 U CN 208345976U CN 201820440830 U CN201820440830 U CN 201820440830U CN 208345976 U CN208345976 U CN 208345976U
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Abstract
The utility model provides a kind of decentralized type sewage processing unit, including sequentially connected conditioning tank and anaerobic pond, is connected with the first anoxic pond, the first nitrification tank, the second anoxic pond, the second nitrification tank and sedimentation basin after anaerobic pond in turn；Particularly, sewage respectively enters anaerobic pond, the first anoxic pond and the second anoxic pond after conditioning tank, it is provided with the first nitrification liquid reflux mechanism between first anoxic pond and the first nitrification tank, the second nitrification liquid reflux mechanism is provided between second anoxic pond and the second nitrification tank；Additionally there is skimming structure and box structure of cooling down.The device of the utility model can guarantee that sewage effluent quality is up to standard steadily in the long term, and device operation energy consumption is low, can connect all devices with PLC, manual intervention is few, and failure rate is low.
Description
Technical field
The utility model relates to a kind of sewage-treatment plant more particularly to a kind of decentralized type sewage processing units.
Background technique
The features such as there are total amounts for the sanitary sewage that villages and small towns resident generates greatly, point disperses and small scale, sewage composition is multiple in addition
Miscellaneous, applicable technology is few, and the restriction of the factors such as financial fund deficiency, sewage treatment has become the intractable of villages and small towns Water Environmental Synthesis Dredge and asks
It is extremely urgent to seek the sewage disposal technology for being suitble to apply in villages and small towns for one of topic.Integrated sewage treating apparatus is integrated with a variety of
The function of sewage treatment process has the characteristics that process flow is simple, occupied area is small, investment cost is low, operational management is simple,
It is especially suitable for the processing of distributing town sewage.But current sewage disposal system is due to design problem, it is difficult to ensure that water quality
Can be steady in a long-term up to standard, for example, the Chinese invention patent that number of patent application is CN201410777913.4 discloses one kind
A3/ O-MBBR integrated sewage treating apparatus and sewage water treatment method, although its disclosed technical solution can carry out sewage
There is the inadequate problem of hydraulic detention time of nitrification liquid measure deficiency or anoxic pond in denitrogenation dephosphorizing, that causes whole device removes total nitrogen
It is not strong；In addition, it is in anti-nitration reaction, because the DO that the nitrification liquid of air lift contains higher concentration (usually in 1mg/L or more), makes
Nitrification liquid part DO concentration in anti-nitration reaction area is higher, and be unevenly distributed, affect anti-nitration reaction it is abundant into
Row.
Summary of the invention
In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a kind of decentralized type sewage processing unit,
It is steady in a long-term up to standard to solve the problems, such as that prior art sewage treatment water outlet quality is difficult to.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of decentralized type sewage processing unit, including sequentially connected conditioning tank and anaerobic pond are sequentially connected after anaerobic pond
There are the first anoxic pond, the first nitrification tank, the second anoxic pond, the second nitrification tank and sedimentation basin；
Particularly, sewage respectively enters anaerobic pond, the first anoxic pond and the second anoxic pond after conditioning tank, described first
The first nitrification liquid reflux mechanism is provided between anoxic pond and the first nitrification tank, second anoxic pond and the second nitrification tank it
Between be provided with the second nitrification liquid reflux mechanism；
Particularly, first nitrification liquid reflux mechanism includes stripping tube, outlet pipe, return pipe and box of cooling down, and first
The part of contaminated water of nitrification tank enters box of cooling down through stripping tube, and the foul water fraction cooled down in box is back to the first nitrification through return pipe
Pond partially enters the first anoxic pond through outlet pipe, and the box of cooling down includes hollow box body, is provided with first partition in box body
And second partition, second partition is vertical with first partition and box body is divided into three spaces, wherein first partition and box body shape
At space in, box body bottom is machined with sparge pipe, and sparge pipe is connected to stripping tube, and water inlet is machined in first partition；The
In the two spaces that two partitions and box body are formed, box body side is machined with water outlet and refluxing opening, water outlet and refluxing opening respectively
It is connect respectively with outlet pipe and return pipe, overflow hole, height of the overflow hole apart from box body bottom is machined on second partition
Height higher than water outlet apart from box body bottom；
Particularly, the face center of the sedimentation basin is provided with skimming structure, skimming structure includes adsorption section, hollow
Storage unit and controller are suspended from storage unit in the adsorption section, and storage unit is fixed on sedimentation basin center of top, storage unit bottom
Portion is communicated with sludge pipe, and adsorption section is controlled by controller and carries out Rotary adsorption.
Further, it is provided with aeration plate in second nitrification tank, in the company of second nitrification tank and sedimentation basin
Passage port is provided with inclined board-like grid, the board-like grid of gas outlet face of aeration plate.
Further, the conditioning tank includes sequentially connected preconditioning pond and buffer pool, the setting of preconditioning pond inlet
There is filtering fence, is provided with agitating device in buffer pool.
Further, decrement pond and storage pool are connected in turn after the sedimentation basin, is provided with clear water reserviors outside sedimentation basin,
It is provided with sandfiltration pot between sedimentation basin and clear water reserviors, is discharged after the water of clear water reserviors again sterilized device disinfection, the sludge of sedimentation basin
Part enters anaerobic pond through sludge pipe, and excess sludge enters decrement pond.
Further, it is provided with bionic filler in the anaerobic pond, is all provided in first nitrification tank and the second nitrification tank
It is equipped with biologic packing material.
Preferably, the aperture of board-like grid is less than the diameter of biologic packing material.
Further, the water inlet of the first anoxic pond and the second anoxic pond is equipped with dashpot, be equipped in dashpot with
The opposite baffle of water inlet, buffering trench bottom are equipped with multiple liquid-leaking nozzles.
Further, it is provided with air inlet pipe on the pipeline of stripping tube, is provided with blower and flowmeter in air inlet pipe.
Further, precipitating bottom of pond portion is provided with sludge hopper, and sludge hopper is connected to sludge pipe.
Further, sewage backflow mechanism is equipped between sewage sludge storage pond and conditioning tank.
Compared with prior art, the utility model has the following technical effect that
The device of the utility model can guarantee that sewage effluent quality is up to standard steadily in the long term, mainly pass through following 4 points realizations:
A, sewage respectively enter anaerobic pond, the first anoxic pond and the second anoxic pond after conditioning tank, realize 3 points of water inlets,
The first nitrification liquid reflux mechanism is provided between first anoxic pond and the first nitrification tank, the second anoxic pond and the second nitrification tank it
Between be provided with the second nitrification liquid reflux mechanism, realize the reflux of two step nitrification liquids, it is innovative to introduce " 3+2 " into water and nitrification
Mode enables the present apparatus steady in a long-term to the removal effect of total nitrogen in sewage up to standard；
B, the utility model is between the first nitrification tank and the first nitrification liquid reflux mechanism, the second nitrification tank and second nitrifies
A box of cooling down is each provided between liquid reflux mechanism, the nitrification liquid reflux mechanism nitrification liquid that air lift goes out from nitrification tank contains greatly
DO is measured, enters in box of cooling down and stays for some time by stripping tube, the DO in nitrification liquid discharges into the atmosphere from gas outlet, makes
Obtaining DO concentration in the mixed liquor after nitrification liquid enters anoxic pond makes lower than 0.5mg/L conducive to the anti-nitration reaction in anoxic pond
The reaction obtained in anoxic pond can carry out steadily in the long term；
C, the utility model are provided with skimming structure on sedimentation basin, can dispose in time sedimentation basin and show mud scum, keep away
Exempt from the concentration of suspension influenced in water outlet, guarantees that effluent quality is up to standard for a long time；
D, the utility model is provided with board-like grid at the second nitrification tank and sedimentation basin connection, since aeration plate constantly rushes
Brush board formula grid guarantees water outlet in a stable flow, concentration model so that the sewage into sedimentation basin has certain momentum
It in enclosing, and is not easy to plug, guarantees that device can be run steadily in the long term, be further ensured that effluent quality.
Above-mentioned these technical characteristics combine, and common guarantee realizes the present apparatus treated that sewage quality can reach steadily in the long term
Target technical effect.
In addition, the device operation energy consumption of the utility model is low, all devices can be connect with PLC, manual intervention is few, failure
Rate is low.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model device.
Fig. 2 is the structural schematic diagram of box of cooling down.
Fig. 3 is the structural schematic diagram of skimming structure.
In figure: 1- conditioning tank, 2- anaerobic pond, the first anoxic pond of 3-, the first nitrification tank of 4-, the second anoxic pond of 5-, 6- second
Nitrification tank, 7- sedimentation basin, the first nitrification liquid of 8- reflux mechanism, the second nitrification liquid of 9- reflux mechanism, 10- skimming structure, 11- spoil disposal
Pipe, 12- precondition pond, 13- buffer pool, and 14- is reduced pond, 15- storage pool, 16- bionic filler, 17- biologic packing material, 18- collection mud
Bucket, 19- sewage backflow pipe；
81- stripping tube, 82- outlet pipe, 83- return pipe, 84- cool down box, 841- first partition, 842- second partition,
843- sparge pipe, 844- water inlet, 845- water outlet, 846- refluxing opening, 847- overflow hole, 85- air inlet pipe, 86- blower, 87-
Flowmeter；
The adsorption section 101-, 102- storage unit.
Specific embodiment
In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model
Art scheme is further described and illustrates, but not limited to this.
Embodiment 1:
The present embodiment provides a kind of decentralized type sewage processing units, including sequentially connected conditioning tank 1 and anaerobic pond 2, detest
It is connected with the first anoxic pond 3, the first nitrification tank 4, the second anoxic pond 5, the second nitrification tank 6 and sedimentation basin 7 behind oxygen pond 2 in turn；
Due to being chemically reacted in anaerobic pond, the first anoxic pond and the second anoxic pond accordingly, in order not to be produced to it
It is raw to influence, guarantee the sewage flowed into a stable flow, concentration range, and also to give the first anoxic pond and second
It is mainly organic matter that anti-nitration reaction in anoxic pond, which supplements a certain amount of carbon source), sewage respectively enters anaerobism after conditioning tank 1
Pond 2, the first anoxic pond 3 and the second anoxic pond 5 are realized 3 points of water inlets, are generally realized by water pump with water pipe.In the first anoxic
The first nitrification liquid reflux mechanism 8 is provided between pond 3 and the first nitrification tank 4, between the second anoxic pond 5 and the second nitrification tank 6
It is provided with the second nitrification liquid reflux mechanism 9, by nitrification liquid reflow treatment twice, so that dispelling effect more to total nitrogen in sewage
Good, effluent quality is more stable.
First nitrification liquid reflux mechanism 8 includes stripping tube 81, outlet pipe 82, return pipe 83 and box 84 of cooling down, the first nitre
The part of contaminated water for changing pond 4 enters through stripping tube 81 cools down box 84, and the foul water fraction cooled down in box 84 is back to the through return pipe 83
One nitrification tank 4 partially enters the first anoxic pond 3 through outlet pipe 82, and box 84 of cooling down includes hollow box body, is provided in box body
First partition 841 and second partition 842, second partition 842 is vertical with first partition 841 and box body is divided into three spaces,
Wherein, in the space that first partition 841 and box body are formed, box body bottom is machined with sparge pipe 843, sparge pipe 843 and stripping tube
81 are connected to, and are machined with water inlet 844 in first partition 841；In the two spaces that second partition 842 and box body are formed, box body one
Side is machined with water outlet 845 and refluxing opening 846 respectively, water outlet 845 and refluxing opening 846 respectively with outlet pipe 82 and return pipe 83
Connection, is machined with overflow hole 847 on second partition 842, height of the overflow hole 847 apart from box body bottom be higher than water outlet 845 away from
Height from box body bottom；Second nitrification liquid reflux mechanism 9 is identical as the first nitrification liquid reflux 8 structure of mechanism；Nitrification liquid reflux
The mechanism nitrification liquid that air lift goes out from nitrification tank contains a large amount of DO, enters outgassing box by stripping tube and stays for some time, nitre
The DO changed in liquid discharges into the atmosphere from gas outlet, so that nitrification liquid enters DO concentration in the mixed liquor after lacking pond and is lower than 0.5mg/
L, the anti-nitration reaction being more favorable in anoxic pond, denitrification effect are more preferable.
The face center of sedimentation basin 7 is provided with skimming structure 10, skimming structure 10 includes adsorption section 101, hollow deposits
Storage portion 102 and controller are suspended from storage unit 102 in adsorption section 101, and storage unit 102 is fixed on 7 center of top of sedimentation basin,
102 bottom of storage unit is communicated with sludge pipe 11, and adsorption section 101 is controlled by controller and carries out Rotary adsorption.The effect of this part
Be: anaerobic reaction occurs because of anoxic for precipitating bottom of pond portion, and methane, nitrogen of generation etc. carry sludge during rising,
Thus mud scum can be constantly accumulated on the surface layer of sedimentation basin, in order to dispose these mud scums in time, avoid influencing in water outlet
Concentration of suspension, be provided with skimming structure 10.
It is provided with aeration plate in the second nitrification tank 6, is provided with and inclines at the communication port of the second nitrification tank 6 and sedimentation basin 7
Oblique board-like grid, the board-like grid of gas outlet face of aeration plate are protected so that the sewage into sedimentation basin has certain momentum
Card water outlet is not easy to plug in a stable flow, concentration range, guarantees that device can be run steadily in the long term, further
Guarantee effluent quality.
In order to improve the stability of the sewage in injection anaerobic pond, the first anoxic pond and the second anoxic pond, conditioning tank 1 includes
Sequentially connected preconditioning pond 12 and buffer pool 13, in order in advance dispose solid refuse in advance, preconditioning pond 12 enters
It is provided with filtering fence at mouthful, agitating device is provided in buffer pool 13, the sewage in conditioning tank is sufficiently stirred.
In order to handle the organic matter in sludge as far as possible, the total amount of sludge is reduced, is connected in turn and subtracts after sedimentation basin 7
Pond 14 and storage pool 15 are measured, is provided with clear water reserviors outside sedimentation basin 7, in order to clear up the impurity being discharged in water more thorough, is sunk
Sandfiltration pot is provided between shallow lake pond 7 and clear water reserviors, filled respectively from bottom to top in sandfiltration pot thick river sand average grain diameter 0.5mm with
On), middle river sand average grain diameter is in 0.35~0.5mm) and thin river sand average grain diameter in 0.25~0.35mm), topmost stays in tank
There is the protection height of 30cm or so.From the water that sedimentation basin flows out from sandfiltration pot lower end is flow to, pass through thick river from bottom to top in tank
Sand, middle river sand and thin river sand are finally discharged from sandfiltration pot upper end, are pumped into ultraviolet sterilizer under the power of water pump, by purple
Outlet after outer disinfection, suspended matter should be no more than 20mg/L in general in water, final to guarantee in conjunction with the effect of skimming structure before
Suspended matter can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one emission standard A in water outlet.
The sludge part of sedimentation basin 7 enters anaerobic pond 2 through sludge pipe, and excess sludge enters decrement pond 14.
It is provided with bionic filler 16 in anaerobic pond 2, is provided with biologic packing material in the first nitrification tank 4 and the second nitrification tank 6
17.To guarantee effect, the aperture of board-like grid is less than the diameter of biologic packing material.
The water inlet of first anoxic pond 3 and the second anoxic pond 5 is equipped with dashpot, is equipped with and water inlet phase in dashpot
Pair baffle, buffering trench bottom is equipped with multiple liquid-leaking nozzles, and the sewage having just enter into the first anoxic pond 3 and the second anoxic pond 5 has
Certain momentum flows in dashpot back and forth after impact is on baffle, so that the flow velocity of sewage is reduced, meanwhile, sewage passes through
The liquid-leaking nozzle for buffering trench bottom enters the first anoxic pond 3 and the second anoxic pond 5, and entrance is also more uniform.
It is provided with air inlet pipe 85 on the pipeline of stripping tube 81, blower 86 and flowmeter 87 are provided in air inlet pipe 85.Pass through
Air is sent into stripping tube by blower 86, and flowmeter 87 is used to measure 86 air quantity of blower.
7 bottom of sedimentation basin is provided with sludge hopper 18, and sludge hopper 18 is connected to sludge pipe 11, in storage pool 15 and conditioning tank 1
Between be equipped with sewage backflow pipe 19.
The bionic filler of the utility model, using a kind of fixed bionic aquatic weed filler hung in anaerobic pond, this
A little fillers include the intermediate several fibers monomer restricted, be fixed on intermediate rope.Fiber monomer is cyclic annular radioactivity structure, cyclic annular fine
Monomer is tieed up by knitting arrangement on the rope of centre, is made of several fibrae circulares monomers and intermediate rope, there is great specific surface
Product, up to 10 times of Conventional combination filler.Since its large specific surface area is generally in 800m2/m3), it can adhere to largely detest at that time
Oxygen bacterium, anaerobic bacteria can consume a small amount of DO in the first anaerobic pond, ensure that the strictly anaerobic of anaerobic pond in metabolic processes
Environment provides the foundation for subsequent anaerobic phosphorus release.Biologic packing material in the first nitrification tank and the second nitrification tank, is generally adopted
With MBBR filler.The packing ratio for saving filler is 0.25~0.5 (total volume of the floating stuffing of addition and the first nitrification tank and the
The ratio of the sum of the volume in di-nitrated pond).
The method that the utility model handles sewage using above-mentioned sewage-treatment plant are as follows:
First sewage is imported in conditioning tank, most solid sundries in sewage are conditioned the filtering of the water inlet in pond
Fence filters out；The sewage in buffer pool is stirred at rabbling mechanism interval, keeps the concentration of wastewater in buffer pool roughly the same；Then
Sewage is pumped into anaerobic pond with water pump, then successively passes through the first anoxic pond, the first nitrification tank, the second anoxic pond, the second nitre
Change pond and sedimentation basin.Part nitrification liquid in first nitrification tank enters box of cooling down after the first nitrification liquid flows back mechanism air lift,
The first anoxic pond is back to after cooling down in box of cooling down；Similarly, the part nitrification liquid in the second nitrification tank also passes through the second nitrification
Liquid flows back after mechanism air lift, is back to the second anoxic pond after outgassing again in box of cooling down；Upper layer sewage in sedimentation basin enters
In clear water reserviors, partial sludge flows back into anaerobic pond by sludge reflux mechanism, and remaining sludge enters dirt after being reduced pond
Mud storage pool；Water in clear water reserviors is filtered through sandfiltration pot, is discharged after the sterilizer disinfection through being installed on outlet pipe；Storage pool
Interior supernatant is directed in conditioning tank.
Anaerobic bacteria in anaerobic pond decomposes the organic matter in sewage, the phosphorus containg substances of solid is discharged into sewage, simultaneously
Also a part of nitrogen substance is nitrified；Sewage in anaerobic pond after about 1 hour, into the first anoxic pond；In first anoxic pond
Anti-nitration reaction is carried out, is nitrogen by nitrate ion denitrification, excludes；Sewage is anti-in the first anoxic pond progress denitrification
About 1.5 are answered as a child to enter the first nitrification tank.The phosphorus containg substances in aerobic bacteria processing sewage in first nitrification tank, and will
P elements solidification, while ammonia radical ion being nitrified as nitrate ion.Meanwhile the first part of contaminated water in nitrification tank is by the first nitre
Change liquid reflux mechanism air lift to cooling down in box, after the nitrification liquid after air lift is cooled down in box of cooling down, enters back into the first anoxic pond
Interior carry out anti-nitration reaction, more preferably, effluent quality is more stable for efficiencies of nitrogen removal.Sewage in the first nitrification tank after about 3 hours,
Into the second anoxic pond, continue anti-nitration reaction.Sewage subsequently enters the after the second anoxic pond stops 1.5 as a child
Di-nitrated pond does not remove complete nitrogen substance and continues nitrification in the second nitrification tank into nitrate ion, and by the second nitre
Change liquid reflux mechanism air lift to cooling down in box, after the nitrification liquid after air lift is cooled down in box of cooling down, enters back into the second anoxic pond
Interior carry out anti-nitration reaction, efficiencies of nitrogen removal is more preferably；Sewage about after the second nitrification tank 2 hours, enters sedimentation basin and is sunk
It forms sediment.For sewage after sedimentation basin precipitates 2 hours, the supernatant liquor of sedimentation basin is transferred to clear water reserviors, after sandfiltration pot filters,
By sterilizing, finally it is discharged or utilizes；The precipitating soil of sedimentation basin lower layer carries out nitrification in decrement pond, reduces
50~60% volume greatly reduces the weight of sludge, is finally transferred to be carried out inside and outside storage pool.When the upper layer of sedimentation basin
When assembling more sludge, skimming structure cleans up the soil for being suspended in upper layer, ensure that the concentration of suspension of the water of discharge
Reach national emission standard.
It should be understood that the nitrogen pollutant (mainly ammonia nitrogen) in sewage passes through nitrification in the first nitrification tank
It is converted into nitrate nitrogen, and nitrification is to have converted the form of nitrogen, also not really except the nitrogen in decontaminated water, thus needs to pass through
Nitrate nitrogen is converted nitrogen by denitrification, guarantees that the total nitrogen in water outlet is up to standard, in the utility model, the nitre of the first nitrification tank
State nitrogen enters and carries out anti-nitration reaction in the first anoxic pond, the nitrate nitrogen in the second nitrification tank enter in the second anoxic pond into
Row anti-nitration reaction；In addition, without sufficiently change form nitrogenous object in the second nitrification tank after nitration reaction, then flow back into
Denitrification is carried out in second anoxic pond, is removed to convert nitrogen for nitrate nitrogen；In addition, also can removing unit in anaerobic pond
Point nitrogen, common guarantee effluent quality.
Meanwhile the sewage disposal process of the utility model, water inlet, water outlet are diagonally positioned.In addition, the utility model
All devices and PLC can be electrically connected, greatly facilitate and it is controlled.
Comparative example 1:
For influent quality with embodiment 1, this comparative example 1 provides a kind of sewage-treatment plant, the dress in structure and embodiment 1
The structure set is identical, and unique difference is that the first nitrification liquid return current machine is not arranged between the first nitrification tank and the first anoxic pond
Structure.
Sewage water treatment method is, with sewage water treatment method in embodiment the step of is almost the same, and unique difference is dirty
After water has carried out nitration reaction in the first nitrification tank, enter directly into the second anoxic pond, not flow back into the first anoxic pond into
Row anti-nitration reaction.
Embodiment 2:
The present embodiment provides a kind of sewage-treatment plants, identical as 1 structure of embodiment, and influent quality is different.
Comparative example 2:
For the influent quality of this comparative example 2 with embodiment 2, difference is box structure of not cooling down.
Embodiment 3:
The present embodiment provides a kind of sewage-treatment plants, identical as 1 structure of embodiment, intake with embodiment 1 and embodiment 2
Water quality is different.
Comparative example 3:
For the influent quality of this comparative example 2 with embodiment 3, difference is do not have skimming structure.
Above-mentioned all examples, device were run up to 1 month, and testing result is as follows:
After operation one month, the COD of embodiment 1crFor 29mg/L, ammonia nitrogen 1.5mg/L, and the COD of comparative example 1crFor
34mg/L, ammonia nitrogen 3mg/L, the utility model can guarantee long-term effluent quality.
By above table data it is found that sewage-treatment plant provided by the utility model, to the efficiencies of nitrogen removal of sewage,
Long-term effluent quality effect is more preferable.
The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand,
But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation,
By the protection of the utility model.
Claims (10)
1. a kind of decentralized type sewage processing unit, including sequentially connected conditioning tank (1) and anaerobic pond (2), which is characterized in that detest
Be connected in turn behind oxygen pond (2) the first anoxic pond (3), the first nitrification tank (4), the second anoxic pond (5), the second nitrification tank (6) with
And sedimentation basin (7)；
Sewage respectively enters anaerobic pond (2), the first anoxic pond (3) and the second anoxic pond (5) after conditioning tank (1), described
The first nitrification liquid reflux mechanism (8) is provided between one anoxic pond (3) and the first nitrification tank (4), in second anoxic pond (5)
And second be provided with the second nitrification liquid reflux mechanism (9) between nitrification tank (6)；
First nitrification liquid reflux mechanism (8) includes stripping tube (81), outlet pipe (82), return pipe (83) and box of cooling down
(84), the part of contaminated water of the first nitrification tank (4) enters through stripping tube (81) and cools down box (84), the foul water fraction in box of cooling down (84)
The first nitrification tank (4) are back to through return pipe (83), partially enter the first anoxic pond (3) through outlet pipe (82), the box of cooling down
(84) include hollow box body, be provided with first partition (841) and second partition (842) in box body, second partition (842) with
First partition (841) is vertical and box body is divided into three spaces, wherein in the space of first partition (841) and box body formation,
Box body bottom is machined with sparge pipe (843), and sparge pipe (843) is connected to stripping tube (81), be machined in first partition (841) into
The mouth of a river (844)；In the two spaces that second partition (842) and box body are formed, box body side be machined with respectively water outlet (845) and
Refluxing opening (846), water outlet (845) and refluxing opening (846) are connect with outlet pipe (82) and return pipe (83) respectively, second partition
(842) it is machined on overflow hole (847), height of the overflow hole (847) apart from box body bottom is higher than water outlet (845) distance
The height of box body bottom；Second nitrification liquid reflux mechanism (9) is identical as the first nitrification liquid reflux mechanism (8) structure；
Be provided with skimming structure (10) in the face center of the sedimentation basin (7), skimming structure (10) include adsorption section (101),
Hollow storage unit (102) and controller, the adsorption section (101) is interior to be suspended from storage unit (102), and storage unit (102) is solid
Due to sedimentation basin (7) center of top, storage unit (102) bottom is communicated with sludge pipe (11), and adsorption section (101) pass through controller control
System carries out Rotary adsorption.
2. decentralized type sewage processing unit as described in claim 1, which is characterized in that the setting in second nitrification tank (6)
There is aeration plate, is provided with inclined board-like grid, aeration plate at the communication port of second nitrification tank (6) and sedimentation basin (7)
The board-like grid of gas outlet face.
3. decentralized type sewage processing unit as described in claim 1, which is characterized in that the conditioning tank (1) includes being sequentially connected
Preconditioning pond (12) and buffer pool (13), preconditioning pond (12) inlet be provided with filtering fence, setting in buffer pool (13)
There is agitating device.
4. decentralized type sewage processing unit as described in claim 1, which is characterized in that be sequentially connected after the sedimentation basin (7)
There are decrement pond (14) and storage pool (15), is provided with clear water reserviors outside sedimentation basin (7), is provided between sedimentation basin (7) and clear water reserviors
Sandfiltration pot is discharged after the water of clear water reserviors again sterilized device disinfection, and the sludge part of sedimentation basin (7) enters anaerobic pond through sludge pipe
(2), excess sludge enters decrement pond (14).
5. decentralized type sewage processing unit as described in claim 1, which is characterized in that be provided in the anaerobic pond (2) bionical
Biologic packing material (17) are provided in filler (16), first nitrification tank (4) and the second nitrification tank (6).
6. decentralized type sewage processing unit as claimed in claim 5, which is characterized in that the aperture of board-like grid is less than biologic packing material
Diameter.
7. decentralized type sewage processing unit as described in claim 1, which is characterized in that the first anoxic pond (3) and the second anoxic pond
(5) water inlet is equipped with dashpot, and the baffle opposite with water inlet is equipped in dashpot, and buffering trench bottom is equipped with multiple leakages
Fluid apertures.
8. decentralized type sewage processing unit as described in claim 1, which is characterized in that be provided on the pipeline of stripping tube (81) into
Tracheae (85) is provided with blower (86) and flowmeter (87) in air inlet pipe (85).
9. decentralized type sewage processing unit as described in claim 1, which is characterized in that sedimentation basin (7) bottom is provided with sludge hopper
(18), sludge hopper (18) is connected to sludge pipe (11).
10. decentralized type sewage processing unit as described in claim 1, which is characterized in that storage pool (15) and conditioning tank (1) it
Between be equipped with sewage backflow pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440830.XU CN208345976U (en) | 2018-03-29 | 2018-03-29 | A kind of decentralized type sewage processing unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440830.XU CN208345976U (en) | 2018-03-29 | 2018-03-29 | A kind of decentralized type sewage processing unit |
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| CN208345976U true CN208345976U (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383330A (en) * | 2018-03-29 | 2018-08-10 | 陕西朗正环保科技有限公司 | A kind of decentralized type sewage processing unit |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108383330A (en) * | 2018-03-29 | 2018-08-10 | 陕西朗正环保科技有限公司 | A kind of decentralized type sewage processing unit |
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Address after: 710075 15 Floor, Building 4, Taihua Jinmao International, 16 Fenghui South Road, Xi'an City, Shaanxi Province Patentee after: Shaanxi long Environmental Protection Technology Co., Ltd. Address before: 710075 15 Floor, Building 4, Taihua Jinmao International, 16 Fenghui South Road, Xi'an City, Shaanxi Province Patentee before: Shaanxi long Environmental Protection Technology Co., Ltd. |
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Address after: 710075 15 Floor, Building 4, Taihua Jinmao International, 16 Fenghui South Road, Xi'an City, Shaanxi Province Patentee after: China chemical langzheng Environmental Protection Technology Co.,Ltd. Address before: 710075 15 Floor, Building 4, Taihua Jinmao International, 16 Fenghui South Road, Xi'an City, Shaanxi Province Patentee before: SHAANXI LANGZHENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |