CN106517678A - Rural domestic wastewater integrated processing device and technology - Google Patents
Rural domestic wastewater integrated processing device and technology Download PDFInfo
- Publication number
- CN106517678A CN106517678A CN201611251535.1A CN201611251535A CN106517678A CN 106517678 A CN106517678 A CN 106517678A CN 201611251535 A CN201611251535 A CN 201611251535A CN 106517678 A CN106517678 A CN 106517678A
- Authority
- CN
- China
- Prior art keywords
- pond
- sewage
- aerobic
- water
- aerobic pond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
The invention discloses a rural domestic wastewater integrated processing device and technology. The device sequentially comprises an anaerobic pool (1), an anoxic pool (2), an aerobic pool and a sedimentation pool (4). The anaerobic pool (1), the anoxic pool (2), the aerobic pool and the sedimentation pool (4) are located in a same shell, and the pools are separated from one another with partition plates. A rural domestic wastewater integrated processing technology based on the device comprises the following steps of phosphorus release in the anaerobic pool, nitrogen removal by denitrification in the anoxic pool, nitration in the aerobic pool, sedimentation in the sedimentation pool and spillover and water drainage. The device is simple in structure, easy to operate, small in occupied area and low in operating cost, improves the nitrogen and phosphorus removal efficiency and is suitable for processing rural domestic wastewater.
Description
Technical field
The invention belongs to urban sewage treatment technology field, and in particular to a kind of domestic sewage in rural areas integrated equipment for wastewater treatment
And technique.
Background technology
China western part is vast in territory, and land area is 5,590,000 square kilometres, accounts for the 59% of the national soil gross area；But people
Mouth is more sparse, is shown according to the 5th census data, 6 provinces such as black, sweet, illiteracy, new, blue or green, Tibetan（Area）, population 1.13 hundred million
People, only accounts for the 9% of country's total population, averagely per square kilometre 20 people, well below national average population density.These areas
It is located in borderland and inland, many high mountains, plateau and desert, natural conditions are poor, exploitation history is slower, has inconvenient traffic, and economic bases are thin
It is weak, it is sparsely populated.Rural area is different from city, and western countryside distribution is scattered, and its sewage discharge is wide and disperses, rural area casual household life
Sewage cannot be focused on a large scale, if its sanitary sewage is focused on more difficult.China rural area still more at present uses
The methods such as methane-generating pit afterwards process sewage, and treatment technology effluent quality is poor, it is impossible to reach《Urban wastewater treatment firm pollutant are arranged
Put standard》One-level A standard.
The technical know-how of Denitrifying Phosphate Accumulating Organisms is with nitrate nitrogen or nitrite nitrogen as electronics using Denitrifying Phosphate Accumulating Organisms
Receptor, synchronizes denitrogenation dephosphorizing.Kuba(1996)[1]Et al. shown by stoichiometry, based on denitrification dephosphorization principle
The double sludge systems of A2/NSBR, the COD and O needed for which2Consumption reduces by 50% and 30% respectively than traditional denitrification dephosphorization system,
Sludge yield accordingly reduces 50%（K Hamada,T Kuba,V Torrico,et al.2006.Comparison of
nutrient removal efficiency between pre- and post-denitrification wastewater
treatments[J].Water science and technology,53(9):169～175.）.Liu Gang (2013) etc.[2]Grind
The person of studying carefully controls aerobic phosphorus absorption by adding acetic acid to AOA-SBR technique aerobic sections, is successfully realized denitrification dephosphorization in anoxic zone
（Liu Gang, Chen Jianyu, Huang Rongxin, wait the low C/N of the new rear-mounted denitrification PROCESS FOR TREATMENT of .2013.（C/P）Than sewage denitrification and dephosphorization property
Can research [J]. ACTA Scientiae Circumstantiae, 33 (11):2979-2986.）.Wang Xiaolian etc. (2005)[3]Confirmed in A2/ by test
In O techniques, there is denitrification dephosphorization phenomenon, and the effect of preferable synchronous denitrification dephosphorizing can be obtained（Wang Xiaolian, Wang Shuying, horse
Bravely, wait the impact [J] of denitrification dephosphorization and excess aeration to biological phosphate-eliminating in .2005. A2O techniques. Journal of Chemical Industry and Engineering, 56 (8):
1565-1570.）.
In anaerobism, the environment of anoxia alternate run, it is easier to be enriched with the facultative micro- life with denitrification dephosphorization effect
Thing.In order to preferably solve the problems, such as rural area casual household's Sewage Pollution environment, the present invention passes through to increase anoxia mixed-liquor return,
Overcome in A2/O, Denitrifying Phosphate Accumulating Organisms can not access the problem of effective enrichment, alleviate to a certain extent biological de-
Nitrogen and the direct contradiction of biological phosphate-eliminating.
The present invention is little with floor space, and concise in technology, operating cost are low, safeguards simple, the advantage such as stable effluent quality,
Have broad application prospects.
The content of the invention
The object of the invention is directed to the deficiencies in the prior art, using denitrification dephosphorization principle as guidance, is not increasing reactor
On the premise of volume, design and develop out that floor space is little, concise in technology can make full use of carbon source, and Nitrogen/Phosphorus Removal is excellent
A kind of domestic sewage in rural areas integrated equipment for wastewater treatment.
The present invention also provides a kind of domestic sewage in rural areas integrated processing technique based on the equipment.
The object of the invention is achieved through the following technical solutions.
A kind of domestic sewage in rural areas integrated equipment for wastewater treatment, including anaerobic pond, anoxic pond, Aerobic Pond and sedimentation tank；It is described
Anaerobic pond, anoxic pond, Aerobic Pond and sedimentation tank are in same housing, and each pond is separated by dividing plate；
The Aerobic Pond is divided into the first Aerobic Pond and the second Aerobic Pond；
The anaerobic pond is separated by dividing plate with anoxic pond, and the dividing plate bottom for separating anaerobic pond with anoxic pond is provided with the first mistake
Water ravine, the sewage in sewage disposal process are crossed water ravine by first and flow into anoxic pond from anaerobic pond；
The anoxic pond is separated by dividing plate with the first Aerobic Pond, is set in the middle part of separation anoxic pond and the dividing plate of the first Aerobic Pond
Being equipped with second and crossing water ravine, the sewage in sewage disposal process is crossed water ravine by second and the first Aerobic Pond flowed into from anoxic pond；Separate
The dividing plate of anoxic pond and the first Aerobic Pond is fixed by zigzag draw-in groove, and zigzag draw-in groove is arranged in metal guide rail, can root
According to needing freely to adjust position of the zigzag draw-in groove in metal guide rail, the first Aerobic Pond volume-tunable is realized；
The dividing plate for separating the first Aerobic Pond and the second Aerobic Pond is provided with the 3rd mistake water ravine, and the sewage in sewage disposal process passes through
3rd crosses water ravine flows into the second Aerobic Pond from the first Aerobic Pond；
The sedimentation tank is separated by dividing plate with the second Aerobic Pond, is separated sedimentation tank and is set with the dividing plate middle and upper part of the second Aerobic Pond
3 water distributors are equipped with, and 3 water distributors are uniformly distributed on same plane, the sewage in sewage disposal process passes through water distributor
Intake from the second Aerobic Pond vertically downward to sedimentation tank, it is ensured that the deposition efficiency of sedimentation tank；
The bottom of the anaerobic pond is provided with the first mechanical stirring device；The bottom of the anoxic pond be provided with the first aeration head and
Second mechanical stirring device；The anoxic pond is additionally provided with evacuation port；The anoxic pond also passes through the first reflux line and first
Reflux pump is connected with anaerobic pond；
The bottom of first Aerobic Pond and the second Aerobic Pond is provided with the second aeration head of uniform arrangement, often arranges aeration head equal
By independent Air Valve Control aeration rate；Second Aerobic Pond is also passed through the second reflux line and the second reflux pump and is connected with anoxic pond
Connect；
The sedimentation tank is rectangular sedimentation tank；The sedimentation tank bottom is provided with 3 sludge hoppers；The sludge hopper is parallel to water
Stream respectively inserts a discharge pipeline inside direction, and each sludge hopper；The discharge pipeline is perpendicular to water (flow) direction；3 discharge pipelines one
The bottom of sedimentation tank is stretched out at end, and external part is merged into after one outlet by threeway connection, a passage of threeway and spoil disposal
Well is connected, and another article of passage of threeway is connected with anaerobic pond by the 3rd return duct and the 3rd reflux pump；
Three discharge pipelines close three and not only improve uniform spoil disposal for one, again convenient operation, it is to avoid sludge in three sludge hoppers not
It is uniformly distributed and causes aqueous suspension to raise；
The water inlet of equipment is arranged on anaerobic pond front end, and the outlet of equipment is arranged on the rear end of sedimentation tank, near equipment water outlet
Effluent weir is provided with mouthful, is provided with baffle plate to retain water surface floating slag before effluent weir.
Further, the sludge hopper is chamfered edge mesa-shaped, and upper bottom is 2 with the perimeter length ratio gone to the bottom:1；The shape of chamfered edge platform
Shape can effectively concentrate sludge, it is to avoid produce spoil disposal dead angle, so as to cause to cause second pond denitrification because cell body sludge is remained
So that Mud up-floating, affects the stable water outlet of technique.
Further, the effluent weir is shaped as zigzag.
Further, in the Aerobic Pond the second aeration head distribution than in anoxic pond the first aeration head it is densely distributed.
Further, the dissolved oxygen in the second Aerobic Pond outlet water at tail end is between 1.0 mg/L-1.5 mg/L.
Further, the partial isometry of the discharge pipeline insertion sludge hopper leaves, and is conducive to sludge hopper
In sludge uniformly flow in discharge pipeline, will not be formed because of spoil disposal uneven and caused sludge residual, be piled up.
Further, Denitrifying Phosphate Accumulating Organisms are contained by anoxia-anaerobism backflow enrichment in the anaerobic pond；The anoxic pond
It is contained within denitrifying bacteria and Denitrifying Phosphate Accumulating Organisms；The Aerobic Pond is contained within nitrifier and Denitrifying Phosphate Accumulating Organisms.
Based on a kind of domestic sewage in rural areas integrated processing technique of the said equipment, comprise the steps：
（1）Anaerobic pond releases phosphorus：Domestic sewage in rural areas enters anaerobic pond by water inlet, passes through Denitrifying Phosphate Accumulating Organisms in anaerobic pond
Complete to release phosphorus；
（2）Anoxic pond denitrification denitrogenation：Anaerobic pond is released the sewage after phosphorus and crosses water ravine by first and enters anoxic pond, in anoxic pond
Denitrifying bacteria carries out denitrification to nitrate as carbon source by the use of the COD in sewage, realizes denitrogenation；
（3）Aerobic Pond nitrification inhales phosphorus：Sewage in anoxic pond after denitrogenation passes through the first reflux line and first by reflux ratio 150%
Reflux pump is back to anaerobic pond, and remaining sewage is crossed water ravine by second and enters Aerobic Pond, the nitre of nitrobacteria in Aerobic Pond
Under change effect, nitrogen of the mineralized nitrogen for nitrate state, and complete aerobic phosphorus absorption；
（4）Sedimentation tank is precipitated：Sewage after Aerobic Pond Nitrification passes through the second reflux line and second time by reflux ratio 200%
Stream pump is back to anoxic pond from the second Aerobic Pond, and remaining sewage is flowed in sedimentation tank by water distributor, and sewage is in sedimentation tank
Advection, and as sludge self gravitation completes sludge settling；
（5）Overflow drainage：After sludge hopper collection, sludge is passed through the sludge precipitated in sedimentation tank by reflux ratio 70%-80%
3rd return duct and the 3rd reflux pump are back to anaerobic pond, and remaining sludge enters blowoff chamber；Process water after mud-water separation leads to
Cross effluent weir overflow and discharge from outlet.
Further, step（1）In, it is 1.2 m/h ~ 2 m/h that sewage enters the flow velocity of anaerobic pond.
Further, sewage is 8 h ~ 10 h in the hydraulic detention time of whole integration apparatus.
Compared with prior art, the invention has the advantages that and beneficial effect：
（1）Present device construction is succinct, it is easy to operate, floor space is little；Each pond is completed in same housing, is easy to pipe
Reason；And sedimentation tank carries out efficiently separating for muddy water using gravity and is not required to increase operation power consumption, reduces operating cost；
（2）Invention increases the time of staying of the Denitrifying Phosphate Accumulating Organisms in anaerobic pond, and nitrate is reduced in anaerobic pond pair
Denitrifying Phosphate Accumulating Organisms release the impact of phosphorus；
（3）The characteristics of present invention is for domestic sewage in rural areas low-carbon-source, makes full use of the COD in sewage, and alleviates polyP bacteria
With the competitive relation of denitrifying bacteria, the efficiency of denitrogenation dephosphorizing is improve；
（4）Water treatment technology based on present device is preferable to the treatment effect of COD, TP and TN, and water outlet COD can reach 20
Below mg/L, 0.5 below mg/L of total phosphorus water outlet, 1.0 below mg/L of water outlet ammonia nitrogen, every effluent quality index reach and high
In《Urban wastewater treatment firm pollutant emission standard》One-level A standard.
Description of the drawings
Fig. 1 is a kind of structural representation of domestic sewage in rural areas integrated equipment for wastewater treatment of the invention；
Fig. 2 is process removal effect figure of the actual sewage to ammonia nitrogen in embodiment 1；
Fig. 3 is process removal effect figure of the actual sewage to total nitrogen in embodiment 1；
Fig. 4 is process removal effect figure of the actual sewage to COD in embodiment 1；
Fig. 5 is process removal effect figure of the actual sewage to total phosphorus in embodiment 1.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but scope of the present invention is not
The scope being confined to described in specific embodiment.
A kind of structural representation of domestic sewage in rural areas integrated equipment for wastewater treatment of the present invention is as shown in figure 1, include successively detesting
Oxygen pond 1, anoxic pond 2, Aerobic Pond and sedimentation tank 4；Anaerobic pond 1, anoxic pond 2, Aerobic Pond and sedimentation tank 4 are in same housing,
And each pond is separated by dividing plate；Aerobic Pond is divided into the first Aerobic Pond 3-1 and the second Aerobic Pond 3-2；Anaerobic pond 1 is contained within instead
Nitrification polyP bacteria；Anoxic pond 2 is contained within denitrifying bacteria and denitrification releases phosphorus bacterium；Aerobic Pond is contained within nitrifier and denitrification is poly-
Phosphorus bacterium；
Anaerobic pond 1 is separated by dividing plate with anoxic pond 2, and the dividing plate bottom for separating anaerobic pond 1 with anoxic pond 2 is provided with the first mistake
Water ravine 5, the sewage in sewage disposal process are crossed water ravine 5 by first and flow into anoxic pond 2 from anaerobic pond 1；
Anoxic pond 2 is separated by dividing plate with the first Aerobic Pond 3-1, is separated in the dividing plate of anoxic pond 2 and the first Aerobic Pond 3-1
Portion is provided with second and crosses water ravine 6, and it is aerobic from the inflow first of anoxic pond 2 that the sewage in sewage disposal process crosses water ravine 6 by second
Pond 3-1；The dividing plate for separating anoxic pond 2 with the first Aerobic Pond 3-1 is fixed by zigzag draw-in groove 21, and zigzag draw-in groove 21 is installed
In metal guide rail 22, position of the zigzag draw-in groove 21 in metal guide rail 22 can be freely adjusted as needed, realize that first is good
Oxygen pond 3-1 volume-tunables；
The dividing plate for separating the first Aerobic Pond 3-1 and the second Aerobic Pond 3-2 is provided with the 3rd mistake water ravine 7, in sewage disposal process
Sewage is crossed water ravine 7 by the 3rd and flows into the second Aerobic Pond 3-2 from the first Aerobic Pond 3-1；
Sedimentation tank 4 is separated by dividing plate with the second Aerobic Pond 3-2, is separated in the dividing plate of sedimentation tank 4 and the second Aerobic Pond 3-2
Portion is provided with 3 water distributors 25, and 3 water distributors 25 are uniformly distributed on same plane, and the sewage in sewage disposal process leads to
Cross water distributor 25 to be intake from the second Aerobic Pond 3-2 vertically downward to sedimentation tank 4；
The bottom of anaerobic pond 1 is provided with the first mechanical stirring device 8；The bottom of anoxic pond 2 be provided with the first aeration head 27 and
Second mechanical stirring device 9；Anoxic pond 2 is additionally provided with evacuation port 26；Anoxic pond 2 also passes through the first reflux line 10 and first time
Stream pump 11 is connected with anaerobic pond 1；
The bottom of the first Aerobic Pond 3-1 and the second Aerobic Pond 3-2 is provided with the second aeration head 12 of uniform arrangement, often arranges aeration
Head is by independent Air Valve Control aeration rate；The distribution of the second aeration head 12 dividing than the first aeration head of anoxic pond 27 in Aerobic Pond
Cloth is intensive；Second Aerobic Pond 3-2 also passes through the second reflux line 13 and the second reflux pump 14 is connected with anoxic pond 2；
Sedimentation tank 4 is rectangular sedimentation tank；4 bottom of sedimentation tank is provided with 3 sludge hoppers；Sludge hopper be chamfered edge mesa-shaped, upper bottom with
The perimeter length ratio gone to the bottom is 2:1；Sludge hopper is parallel to water (flow) direction, and a discharge pipeline is respectively inserted inside each sludge hopper；
The partial isometry of discharge pipeline insertion sludge hopper leaves；Discharge pipeline 15 is perpendicular to water (flow) direction；3 discharge pipelines one
The bottom of sedimentation tank 4 is stretched out at end, and external part is merged into after one outlet by threeway connection, a passage of threeway and spoil disposal
Well 16 is connected, and another article of passage of threeway is connected with anaerobic pond 1 by the 3rd return duct 17 and the 3rd reflux pump 18；
The water inlet 19 of equipment is arranged on 1 front end of anaerobic pond, and the outlet 20 of equipment is arranged on the rear end of sedimentation tank 4, close to set
Standby water outlet is provided with effluent weir 23, and effluent weir 23 is shaped as zigzag, is provided with baffle plate 24 to retain before effluent weir 23
Water surface scum silica frost.
Embodiment 1
Using a kind of close-coupled processing process for carrying out domestic sewage in rural areas of above-mentioned domestic sewage in rural areas, the overall practicality steel plate of equipment
Quality, device internal partition use 4 mm steel plates, external station plate to use 6 mm steel plates, base plate to adopt 8 mm steel plates, device weld seam
Using welding by both sides, burr, ne-leakage are removed.
Equipment Design Treatment water yield 1.2-2.5 m/h, whole processing pond volume are 37.5 m, 6 m of overall length, a width of 2.5
m。
Handling process comprises the steps：
（1）Domestic sewage in rural areas enters anaerobic pond 1 by water inlet 19, completes to release phosphorus by releasing phosphorus bacterium in anaerobic pond 1；Sewage
Flow velocity into anaerobic pond is 1.2 m/h ~ 2 m/h；
（2）Anaerobic pond 1 is released the sewage after phosphorus and crosses water ravine 5 by first and enters anoxic pond 2, the denitrifying bacteria profit in anoxic pond 2
Denitrification is carried out to nitrate as carbon source with the COD in sewage, realize denitrogenation；
（3）Sewage after 2 denitrogenation of anoxic pond passes through the first reflux line 11 by reflux ratio 150% and the first reflux pump 12 is back to
Anaerobic pond, remaining sewage are crossed water ravine 6 by second and enter Aerobic Pond, and under the Nitrification of nitrobacteria, mineralized nitrogen is
The nitrogen of nitrate state, and complete aerobic phosphorus absorption；
（4）Sewage after Aerobic Pond Nitrification passes through the second reflux line 14 and the second reflux pump 15 from the by reflux ratio 200%
Two Aerobic Pond 3-2 are back to anoxic pond, and remaining sewage is flowed in sedimentation tank 4 by water distributor, sewage advection in sedimentation tank 4
And complete sludge settling；
（5）, after sludge hopper collection, sludge is by reflux ratio 70%-80% by the 3rd backflow for the sludge precipitated in sedimentation tank 4
Pipe 17 and the 3rd reflux pump 18 are back to anaerobic pond 1, and remaining sludge enters blowoff chamber；Process water after mud-water separation passes through
24 overflow of mill weir is simultaneously discharged from outlet 20.
The average influent ammonium concentration of domestic sewage in rural areas is 26.19 mg/L, and average water inlet total nitrogen concentration is 31.24
Mg/L, average water inlet total phosphorus concentration are 3.83 mg/L, and average inlet COD concentration is 216.90 mg/L；Sewage is in whole one
The hydraulic detention time of change equipment is 8 h ~ 10 h.
Device is investigated under different operating modes respectively for ammonia nitrogen, total nitrogen, total phosphorus, the removal effect of COD, each operating mode probation
For 10d, experiment of single factor result is as follows：
（1）When treating capacity is 48t/d, service condition is：Anoxic pond return current ratio of the mixed liquid R=150%, Aerobic Pond mixed-liquor return
Compare R1=200%, return sludge ratio R2=80%, it is 2 m/h that sewage enters the flow velocity of anaerobic pond, and sewage is in whole integration apparatus
Hydraulic detention time be 8 h；After stable, the average removal rate of ammonia nitrogen is 94.21%, and the average removal rate of total nitrogen is
57.79%, the average removal rate of total phosphorus is 90.88% for the average removal rate of 85.69%, COD.
（2）When treating capacity is 36t/d, service condition is：Anoxic pond return current ratio of the mixed liquid R=150%, Aerobic Pond mixed liquor
Reflux ratio R1=200%, return sludge ratio R2=80%, it is 1.5 m/h that sewage enters the flow velocity of anaerobic pond, and sewage is in whole one
The hydraulic detention time of change equipment is 9 h；After stable, the average removal rate of ammonia nitrogen is 97.01%, the average removal of total nitrogen
Rate is 76.63%, and the average removal rate of total phosphorus is 94.30% for the average removal rate of 90.87%, COD.
（3）When treating capacity is 28t/d, service condition is：Anoxic pond return current ratio of the mixed liquid R=150%, Aerobic Pond mixed liquor
Reflux ratio R1=200%, return sludge ratio R2=80%, it is 1.2 m/h that sewage enters the flow velocity of anaerobic pond, and sewage is in whole one
The hydraulic detention time of change equipment is 10 h；After stable, the average removal rate of ammonia nitrogen is 95.60%, and total nitrogen averagely goes
Except rate is 67.21%, the average removal rate of total phosphorus is 92.59% for the average removal rate of 88.27%, COD.
Implementation result
The result of domestic sewage in rural areas integrated equipment for wastewater treatment is investigated according to above experiment of single factor, when treating capacity is 36t/
D, anoxic pond return current ratio of the mixed liquid R=150%, Aerobic Pond return current ratio of the mixed liquid R1=200%, return sludge ratio R2=80%, sewage
Flow velocity into anaerobic pond is 1.5 m/h, and sewage is 9h in the hydraulic detention time of whole integration apparatus, investigates rural area life
Sewage integrated treatment equipment living processes the treatment effect of sewage, and the investigation time is 30d.
1st, the removal effect of ammonia nitrogen and total nitrogen
The removal effect of ammonia nitrogen such as Fig. 2, as shown in Figure 2, into device sewage total nitrogen based on ammonia nitrogen, wherein highest of intaking
Ammonia nitrogen concentration is 35.82 mg/L, and minimum ammonia nitrogen concentration of intaking is 16.98 mg/L, and average influent ammonium concentration is 25.41 mg/
L；After the Nitrification of nitrobacteria in Aerobic Pond activated sludge, its water outlet ammonia nitrogen maximum concentration is 3.01 mg/L, minimum
Ammonia nitrogen concentration is 0.18 mg/L, and average water outlet ammonia nitrogen concentration is 1.14 mg/L, and average ammonia nitrogen removal frank is 95.74%, remote excellent
In《Urban wastewater treatment firm pollutant emission standard》One-level A standard.
The removal effect of total nitrogen is as shown in figure 3, from the figure 3, it may be seen that highest total nitrogen concentration of intaking is intake most for 45.87 mg/L
Low total nitrogen concentration is 18.18 mg/L, and average water inlet total nitrogen concentration is 30.17 mg/L, through the denitrification denitrogenation mistake of microorganism
Cheng Hou, its water outlet total nitrogen maximum concentration be 12.53 mg/L, minimum total nitrogen concentration be 6.39 mg/L, average water outlet total nitrogen concentration
For 9.42 mg/L, average nitrogen removal rate is 66.54%, is better than《Urban wastewater treatment firm pollutant emission standard》One-level A is marked
It is accurate.
It can be seen that the present invention has the nitration denitrification effect of efficient stable, nitrogen removal performance is excellent.
2nd, the removal effect of COD
As shown in figure 4, as shown in Figure 4, in the sewage of device, COD concentration is relatively low, wherein highest of intaking for the removal effect of COD
COD concentration is 345 mg/L, and water inlet lowest COD concentration is 109 mg/L, and average inlet COD concentration is 208.9 mg/L；And go out
Water COD maximum concentrations are 27.7 mg/L, and lowest COD concentration is 9.9 mg/L, and average effluent COD concentration is 16.45 mg/L, is put down
Clearance is 91.79%, is much better than《Urban wastewater treatment firm pollutant emission standard》One-level A standard.
COD is the carbon source of growth of microorganism in sewage treatment process, when the denitrification dephosphorization function of sewage is carried out, denitrification
Denitrifier belongs to heterotroph facultative anaerobic bacteria, in anoxia condition, with organic carbon as electron donor and nutrient source carries out denitrification
Reaction；And realize that the polyP bacteria of dephosphorization function needs active absorption that the second that Organic substance in water becomes is converted by anaerobic fermentation and acid production bacterium
Sour glycosides, this can also consume carbon source.
Technique based on domestic sewage in rural areas integrated equipment for wastewater treatment of the present invention is extraordinary for COD has to remove effect
Really, carbon source therein is efficiently utilized.
3rd, the removal effect of total phosphorus
As shown in figure 5, as shown in Figure 5, in the sewage of device, total phosphorus concentration fluctuation is larger, wherein entering for the removal effect of total phosphorus
Water highest total phosphorus concentration is 5.18 mg/L, and minimum total phosphorus concentration of intaking is 2.61 mg/L, and average water inlet total phosphorus concentration is 3.91
mg/L；And water outlet total phosphorus maximum concentration is 0.47 mg/L, minimum total phosphorus concentration is 0.27 mg/L, and average water outlet total phosphorus concentration is
0.37 mg/L, average removal rate are 89.88%, are reached《Urban wastewater treatment firm pollutant emission standard》One-level A standard.
Technique based on domestic sewage in rural areas integrated equipment for wastewater treatment of the present invention is extraordinary for total phosphorus has to remove effect
Really.
Domestic sewage in rural areas integrated equipment for wastewater treatment of the present invention and technique is to target contaminant COD in sum, total nitrogen,
Total phosphorus has good removal effect, wherein average effluent COD concentration is 16.45 mg/L, average water outlet total nitrogen concentration is 9.42
Mg/L, average water outlet total phosphorus concentration are 0.37 mg/L, and every water outlet reaches and be better than《Urban wastewater treatment firm pollutant emission
Standard》One-level A standard.
Claims (10)
1. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment, it is characterised in that flow to by sewage and include successively anaerobic pond（1）、
Anoxic pond（2）, Aerobic Pond and sedimentation tank（4）；The anaerobic pond（1）, anoxic pond（2）, Aerobic Pond and sedimentation tank（4）In same
In housing, and each pond is separated by dividing plate；
The Aerobic Pond is divided into the first Aerobic Pond（3-1）With the second Aerobic Pond（3-2）；
The anaerobic pond（1）With anoxic pond（2）Separated by dividing plate, separate anaerobic pond（1）With anoxic pond（2）Dividing plate bottom
It is provided with first and crosses water ravine（5）, the sewage in sewage disposal process is by the first mistake water ravine（5）From anaerobic pond（1）Flow into anoxia
Pond（2）；
The anoxic pond（2）With the first Aerobic Pond（3-1）Separated by dividing plate, separate anoxic pond（2）With the first Aerobic Pond（3-
1）Dividing plate in the middle part of be provided with second and cross water ravine（6）, the sewage in sewage disposal process is by the second mistake water ravine（6）From anoxia
Pond（2）Flow into the first Aerobic Pond（3-1）；Separate anoxic pond（2）With the first Aerobic Pond（3-1）Dividing plate pass through zigzag draw-in groove
（21）It is fixed, and zigzag draw-in groove（21）Installed in metal guide rail（22）On, zigzag draw-in groove can be freely adjusted as needed
（21）In metal guide rail（22）On position, realize the first Aerobic Pond（3-1）Volume-tunable；
Separate the first Aerobic Pond（3-1）With the second Aerobic Pond（3-2）Dividing plate be provided with the 3rd and cross water ravine（7）, sewage disposal
Sewage in journey crosses water ravine by the 3rd（7）From the first Aerobic Pond（3-1）Flow into the second Aerobic Pond（3-2）；
The sedimentation tank（4）With the second Aerobic Pond（3-2）Separated by dividing plate, separate sedimentation tank（4）With the second Aerobic Pond（3-
2）Dividing plate middle and upper part be provided with some water distributors（25）, and water distributor（25）It is uniformly distributed on same plane, sewage disposal
During sewage pass through water distributor（25）From the second Aerobic Pond（3-2）To sedimentation tank（4）Intake vertically downward.
2. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 1, it is characterised in that the anaerobic pond
（1）Bottom be provided with the first mechanical stirring device（8）；The anoxic pond（2）Bottom be provided with the first aeration head（27）With
Second mechanical stirring device（9）；The anoxic pond（2）It is additionally provided with evacuation port（26）；The anoxic pond（2）Also pass through first time
Flow tube road（10）With the first reflux pump（11）With anaerobic pond（1）Connection；
First Aerobic Pond（3-1）With the second Aerobic Pond（3-2）Bottom be provided with the second aeration head of uniform arrangement
（12）, aeration head is often arranged by independent Air Valve Control aeration rate；Second Aerobic Pond（3-2）Also pass through the second reflux line
（13）With the second reflux pump（14）With anoxic pond（2）Connection；
The sedimentation tank（4）For rectangular sedimentation tank；The sedimentation tank（4）Bottom is provided with 3 sludge hoppers；The sludge hopper is put down
Row is in water (flow) direction, and a discharge pipeline is respectively inserted inside each sludge hopper（15）；The discharge pipeline（15）Perpendicular to current side
To；3 discharge pipelines（15）Sedimentation tank is stretched out in one end（4）Bottom, external part merged into,
One passage of threeway and blowoff chamber（16）Connection, another article of passage of threeway pass through the 3rd return duct（17）With the 3rd reflux pump
（18）With anaerobic pond（1）Connection；
The water inlet of equipment（19）It is arranged on anaerobic pond（1）Front end, the outlet of equipment（20）It is arranged on sedimentation tank（4）After
End, near equipment outlet（20）Place is provided with effluent weir（23）, effluent weir（23）Before be provided with baffle plate（24）To retain the water surface
Scum silica frost.
3. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 2, it is characterised in that the sludge hopper
For chamfered edge mesa-shaped, upper bottom is 2 with the girth ratio gone to the bottom:1；The effluent weir（23）Be shaped as zigzag.
4. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 1, it is characterised in that the Aerobic Pond
In the second aeration head（12）Distribution compare anoxic pond（2）In the first aeration head it is densely distributed.
5. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 1, it is characterised in that described second best
Oxygen pond（3-2）Dissolved oxygen in outlet water at tail end is between 1.0 mg/L-1.5 mg/L.
6. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 1, it is characterised in that the discharge pipeline
The partial isometry of insertion sludge hopper is from being uniformly provided with aperture.
7. a kind of domestic sewage in rural areas integrated equipment for wastewater treatment according to claim 1, it is characterised in that the anaerobic pond
（1）It is interior that Denitrifying Phosphate Accumulating Organisms are contained by anoxia-anaerobism backflow enrichment；The anoxic pond（2）It is contained within denitrifying bacteria and anti-
Nitrification polyP bacteria；The Aerobic Pond is contained within nitrobacteria and Denitrifying Phosphate Accumulating Organisms.
8. a kind of domestic sewage in rural areas integrated processing technique of equipment described in any one of claim 1 ~ 7 is based on, and its feature exists
In comprising the steps：
（1）Domestic sewage in rural areas passes through water inlet（19）Into anaerobic pond（1）, in anaerobic pond（1）In pass through Denitrifying Phosphate Accumulating Organisms
Complete to release phosphorus；
（2）Anaerobic pond（1）Release the sewage after phosphorus water ravine is crossed by first（5）Into anoxic pond（2）, anoxic pond（2）In anti-nitre
Changing antibacterial carries out denitrification to nitrate as carbon source using the COD in sewage, realizes denitrogenation；
（3）Anoxic pond（2）Sewage after middle denitrogenation passes through the first reflux line by reflux ratio 150%（10）With the first reflux pump
（11）It is back to anaerobic pond（1）, remaining sewage is by the second mistake water ravine（6）Into Aerobic Pond, the nitrobacteria in Aerobic Pond
Nitrification under, mineralized nitrogen is the nitrogen of nitrate state, and completes aerobic phosphorus absorption；
（4）Sewage after Aerobic Pond Nitrification passes through the second reflux line by reflux ratio 200%（13）With the second reflux pump（14）
From the second Aerobic Pond（3-2）It is back to anoxic pond（2）, remaining sewage is by water distributor（25）Flow into sedimentation tank（4）In, sewage
In sedimentation tank（4）Middle advection simultaneously completes sludge settling；
（5）Sedimentation tank（4）After sludge hopper collection, sludge is passed through the 3rd time the sludge of middle precipitation by reflux ratio 70%-80%
Flow tube（17）With the 3rd reflux pump（18）It is back to anaerobic pond（1）, remaining sludge enters blowoff chamber（16）；After mud-water separation
Process water and pass through effluent weir（23）Overflow from outlet（20）Discharge.
9. a kind of domestic sewage in rural areas integrated processing technique according to claim 8, it is characterised in that step（1）In,
Sewage enters anaerobic pond（1）Flow velocity be 1.2 m/h ~ 2 m/h.
10. a kind of domestic sewage in rural areas integrated processing technique according to claim 8, it is characterised in that sewage is whole
The hydraulic detention time of individual integration apparatus is 8 h ~ 10 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251535.1A CN106517678A (en) | 2016-12-29 | 2016-12-29 | Rural domestic wastewater integrated processing device and technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251535.1A CN106517678A (en) | 2016-12-29 | 2016-12-29 | Rural domestic wastewater integrated processing device and technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106517678A true CN106517678A (en) | 2017-03-22 |
Family
ID=58335598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611251535.1A Pending CN106517678A (en) | 2016-12-29 | 2016-12-29 | Rural domestic wastewater integrated processing device and technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106517678A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601666A (en) * | 2017-09-21 | 2018-01-19 | 广州奥蕾湾环保科技有限公司 | A kind of packing type country sewage integrated treatment unit and technique |
| CN107827235A (en) * | 2017-11-13 | 2018-03-23 | 成都信息工程大学 | One kind is based on improvement A2The method of the processing domestic sewage in rural areas of O techniques |
| CN108409036A (en) * | 2018-03-20 | 2018-08-17 | 重庆泽羲环境科技有限公司 | Stripping reflux MBR gravity filtration integrated sewage treating apparatus |
| CN109437396A (en) * | 2018-10-22 | 2019-03-08 | 广西博世科环保科技股份有限公司 | A kind of processing method of rural area dispersion point source sanitary sewage |
| CN109824147A (en) * | 2019-03-27 | 2019-05-31 | 合肥訫淼环境工程有限责任公司 | Composite integrated sewage disposal device |
| CN109879530A (en) * | 2019-02-25 | 2019-06-14 | 安徽建筑大学 | A method of villages and small towns sewage is handled using vehicular integrated equipment for wastewater treatment |
| CN110104776A (en) * | 2019-05-30 | 2019-08-09 | 合肥訫淼环境工程有限责任公司 | A kind of small-scale sewage processing integration apparatus |
| CN110282740A (en) * | 2019-06-24 | 2019-09-27 | 西安科技大学 | A kind of processing unit suitable for sewage quantity fluctuation |
| CN111099788A (en) * | 2018-10-26 | 2020-05-05 | 河北恒特环保工程有限公司 | Sewage treatment device for enhanced deep nitrogen and phosphorus removal process |
| CN111268800A (en) * | 2020-03-18 | 2020-06-12 | 辽宁一诺环境产业集团有限公司 | Rural sewage integration effluent treatment plant of deep-well formula AAO |
| CN112079521A (en) * | 2020-08-27 | 2020-12-15 | 生态环境部华南环境科学研究所 | Based on A2Alternate rural sewage treatment device for O process |
| CN112159045A (en) * | 2020-10-13 | 2021-01-01 | 天津万峰环保科技有限公司 | Advanced oxidation sewage treatment equipment |
| CN113104980A (en) * | 2021-05-06 | 2021-07-13 | 长安大学 | AAO continuous flow activated sludge sewage treatment method and device for enhancing biological phosphorus removal |
| CN113213708A (en) * | 2021-06-01 | 2021-08-06 | 武汉东碧环保科技有限公司 | Rural domestic sewage treatment device |
| CN114291897A (en) * | 2021-12-17 | 2022-04-08 | 上海天汉环境资源有限公司 | Processing system of nitrate-containing wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141000Y (en) * | 2007-12-18 | 2008-10-29 | 华南理工大学 | A2/O and UCT technique integrated composite sewage treatment reactor |
| CN102126815A (en) * | 2011-02-16 | 2011-07-20 | 同济大学 | Method for reinforcing nitrogen and phosphorous removal from sewage by utilizing anaerobic environment of pipeline |
| WO2012010096A1 (en) * | 2010-07-20 | 2012-01-26 | 华南理工大学 | Device for synchronously removing nitrogen and phosphorus in mixed municipal sewage and fecal sewage by using a2/o-biomembrane and method thereof |
| CN202968318U (en) * | 2012-12-07 | 2013-06-05 | 上海铂尔怡环境技术股份有限公司 | Household wastewater treatment system |
-
2016
- 2016-12-29 CN CN201611251535.1A patent/CN106517678A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141000Y (en) * | 2007-12-18 | 2008-10-29 | 华南理工大学 | A2/O and UCT technique integrated composite sewage treatment reactor |
| WO2012010096A1 (en) * | 2010-07-20 | 2012-01-26 | 华南理工大学 | Device for synchronously removing nitrogen and phosphorus in mixed municipal sewage and fecal sewage by using a2/o-biomembrane and method thereof |
| CN102126815A (en) * | 2011-02-16 | 2011-07-20 | 同济大学 | Method for reinforcing nitrogen and phosphorous removal from sewage by utilizing anaerobic environment of pipeline |
| CN202968318U (en) * | 2012-12-07 | 2013-06-05 | 上海铂尔怡环境技术股份有限公司 | Household wastewater treatment system |
Non-Patent Citations (2)
| Title |
|---|
| 李明俊等: "《环保机械与设备》", 31 March 2005, 中国环境科学出版社 * |
| 谢小青等: "《污水处理工》", 30 June 2011, 厦门大学出版社 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601666A (en) * | 2017-09-21 | 2018-01-19 | 广州奥蕾湾环保科技有限公司 | A kind of packing type country sewage integrated treatment unit and technique |
| CN107827235A (en) * | 2017-11-13 | 2018-03-23 | 成都信息工程大学 | One kind is based on improvement A2The method of the processing domestic sewage in rural areas of O techniques |
| CN108409036A (en) * | 2018-03-20 | 2018-08-17 | 重庆泽羲环境科技有限公司 | Stripping reflux MBR gravity filtration integrated sewage treating apparatus |
| CN109437396A (en) * | 2018-10-22 | 2019-03-08 | 广西博世科环保科技股份有限公司 | A kind of processing method of rural area dispersion point source sanitary sewage |
| CN111099788A (en) * | 2018-10-26 | 2020-05-05 | 河北恒特环保工程有限公司 | Sewage treatment device for enhanced deep nitrogen and phosphorus removal process |
| CN109879530A (en) * | 2019-02-25 | 2019-06-14 | 安徽建筑大学 | A method of villages and small towns sewage is handled using vehicular integrated equipment for wastewater treatment |
| CN109824147A (en) * | 2019-03-27 | 2019-05-31 | 合肥訫淼环境工程有限责任公司 | Composite integrated sewage disposal device |
| CN110104776A (en) * | 2019-05-30 | 2019-08-09 | 合肥訫淼环境工程有限责任公司 | A kind of small-scale sewage processing integration apparatus |
| CN110104776B (en) * | 2019-05-30 | 2023-12-01 | 合肥訫淼环境工程有限责任公司 | Small-size sewage treatment integration equipment |
| CN110282740A (en) * | 2019-06-24 | 2019-09-27 | 西安科技大学 | A kind of processing unit suitable for sewage quantity fluctuation |
| CN111268800A (en) * | 2020-03-18 | 2020-06-12 | 辽宁一诺环境产业集团有限公司 | Rural sewage integration effluent treatment plant of deep-well formula AAO |
| CN112079521A (en) * | 2020-08-27 | 2020-12-15 | 生态环境部华南环境科学研究所 | Based on A2Alternate rural sewage treatment device for O process |
| CN112159045A (en) * | 2020-10-13 | 2021-01-01 | 天津万峰环保科技有限公司 | Advanced oxidation sewage treatment equipment |
| CN113104980A (en) * | 2021-05-06 | 2021-07-13 | 长安大学 | AAO continuous flow activated sludge sewage treatment method and device for enhancing biological phosphorus removal |
| CN113213708A (en) * | 2021-06-01 | 2021-08-06 | 武汉东碧环保科技有限公司 | Rural domestic sewage treatment device |
| CN114291897A (en) * | 2021-12-17 | 2022-04-08 | 上海天汉环境资源有限公司 | Processing system of nitrate-containing wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106517678A (en) | Rural domestic wastewater integrated processing device and technology | |
| CN102149645B (en) | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment | |
| CN103936229B (en) | A kind of municipal sewage improvement A2/ O intensified denitrification and dephosphorization processes device and technique | |
| CN107601666A (en) | A kind of packing type country sewage integrated treatment unit and technique | |
| CN102260021A (en) | Process and device for deep denitrogenation of domestic wastewater without additional carbon source | |
| CN101525207A (en) | Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process | |
| CN202744423U (en) | Integrated bio-contact oxidation device for treating rural domestic sewage | |
| CN207986809U (en) | The AAO biochemical treatment tanks of treated sewage | |
| CN105923771A (en) | Self-circulation biological denitrification reactor | |
| CN111646652A (en) | A high-efficient biological denitrification device for low carbon nitrogen ratio sewage | |
| CN207998522U (en) | A kind of packing type country sewage integrated treatment unit | |
| CN206970300U (en) | Nitrification liquid reflux and biological reaction pool for biological reaction pool | |
| CN215161901U (en) | Mainstream UMIF (unified modeling and derived knowledge framework) process system for low-cost nitrogen and phosphorus removal of low-C/N (carbon/nitrogen) ratio sewage | |
| CN105417871A (en) | Spiral-flow type integrated sewage treatment device provided with center return pipe | |
| CN110217939B (en) | Improved AAO-based sewage nitrogen and phosphorus removal device and process | |
| CN107129119A (en) | A kind of biochemical treatment apparatus and technique for realizing high CO_2 density | |
| CN209493447U (en) | A kind of integrated A 2O bioreactor | |
| CN111689653A (en) | Biological-ecological integrated sewage treatment device and treatment method | |
| CN105502660A (en) | Reverse-flow type biological contact device | |
| CN206467036U (en) | Short distance nitration Anammox manifold type denitrification reactor | |
| CN206886895U (en) | A kind of domestic sewage in rural areas integrated equipment for wastewater treatment | |
| CN107364969A (en) | The energy-saving sewage processing method and its device of a kind of high-efficient denitrification and dephosphorization | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN103183456A (en) | Integrated anoxic-aerobic baffled reactor water treatment device | |
| CN208776535U (en) | A kind of domestic sewage in rural areas integrated equipment for wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |