CN109422422A - A kind of sewage disposal device and sewage water treatment method - Google Patents
A kind of sewage disposal device and sewage water treatment method Download PDFInfo
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- CN109422422A CN109422422A CN201710737690.2A CN201710737690A CN109422422A CN 109422422 A CN109422422 A CN 109422422A CN 201710737690 A CN201710737690 A CN 201710737690A CN 109422422 A CN109422422 A CN 109422422A
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- preaerator
- intermittent aerating
- sewage
- hypoxia
- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 115
- 229910001868 water Inorganic materials 0.000 title claims description 115
- 238000000034 method Methods 0.000 title abstract description 24
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 43
- 230000007954 hypoxia Effects 0.000 claims abstract description 43
- 238000005273 aeration Methods 0.000 claims abstract description 42
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 238000010992 reflux Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 15
- 238000004880 explosion Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005276 aerator Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 239000002351 wastewater Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000703 anti-shock Effects 0.000 abstract description 3
- 238000011068 loading method Methods 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 241000894006 Bacteria Species 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 201000010099 disease Diseases 0.000 description 8
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 4
- 230000002572 peristaltic effect Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 241001495402 Nitrococcus Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- DJFBJKSMACBYBD-UHFFFAOYSA-N phosphane;hydrate Chemical compound O.P DJFBJKSMACBYBD-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F3/02—Aerobic 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
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention relates to a kind of sewage disposal devices, including preaerator, hypoxia device, anaerobic device and intermittent aerating device, sewage passes sequentially through these devices by gravity stream, agitating device is set inside the hypoxia device, anaerobic device and intermittent aerating device, aeration head is provided in the preaerator and intermittent aerating device, mixed liquor reflux unit is set between the intermittent aerating device and hypoxia device, is flowed back into the hypoxia device through the processed sewage of intermittent aerating device through the mixed liquor reflux unit；The preaerator is the reaction tank with thin and tall inner cavity, and the aeration head passes through the entire inner cavity of the preaerator from top to bottom.Sewage disposal device of the invention combines activated sludge process and the advantages of intermittent aerating method, realizes low C/N than wastewater efficient denitrogenation, and system anti-shock loading better performances, surplus sludge volume is low, and technique is flexible, and operating cost is low.
Description
Technical field
The present invention relates to a kind of sewage disposal device and sewage water treatment methods more particularly to a kind of low C/N to compare sewage treatment
Equipment and sewage water treatment method.
Background technique
In recent years, as the contradiction of supply and demand for the water resource becomes increasingly conspicuous, shortage of water resources has become the restriction national economic development
One of the critical issue improved with people's lives, the demand of sewage recycling is more strengthened, and era development trend and society are complied with
The green building of people's livelihood needs also requires water-saving and Discussion about Unconventional Water Resources reasonable utilization.Produce the big of waste water and sanitary sewage
Amount discharge leads to the increase of Water element, although the continuous improvement of wastewater treatment in China rate, existing sewage drainage standard via
Second level is promoted to level-one, but the eutrophication and relevant issues of the caused water body of presence of Water phosphorus do not solve thoroughly but
Certainly, current phosphorus has obtained good result by physico-chemical process recycling, so biological method water process is to remove nitrogen
It is main.Nitrogen compound, which only passes through biological method, can just be efficiently removed, and sufficient carbon source is the key that realize sewage water denitrification, theoretical
On under conditions of C/N ratio of intaking is not less than 3.4 biological denitrificaion could obtain good denitrification effect, and China's most cities
Sanitary sewage and wastewater from chemical industry, breeding wastewater, landfill leachate etc. imported etc. rainwater due to cause C/N ratio to be below
3.4, usually to add outer carbon source can be only achieved relatively good treatment effect, but such processing mode increases water process and takes
With, while increasing sludge volume, greenhouse gas emissions again etc..
In this context, the water quality characteristic for handled low C/N than sewage selects suitable denitrogenation technology, optimization de-
Nitrogen process combination realizes that the effective reuse of stain disease is imperative to reach mutual supplement with each other's advantages, the efficient processing technique of exploitation.
Summary of the invention
In view of this, limited carbon source can be made full use of for denitrogenation the purpose of the present invention is to provide a kind of, interior carbon is developed
Surplus sludge volume is reduced in source, is not necessarily to additional basicity, and biological denitrificaion strain source, culture domestication are simple, and operating cost is low, operation letter
It is single flexible, at the efficient denitrification combined sewage water processing equipment and application sewage disposal device progress sewage of stable effluent quality
The processing method of reason.
According to the first aspect of the invention, a kind of sewage disposal device is provided, which is characterized in that including preaerator,
Hypoxia device, anaerobic device and intermittent aerating device, sewage pass sequentially through these devices by gravity stream, fill in the anoxic
It sets, agitating device is set inside anaerobic device and intermittent aerating device, set in the preaerator and intermittent aerating device
It is equipped with aeration head, mixed liquor reflux unit is set between the intermittent aerating device and hypoxia device, through the intermittent aerating
The processed sewage of device flows back into the hypoxia device through the mixed liquor reflux unit；The preaerator be with
The reaction tank of thin and tall inner cavity, the aeration head pass through the entire inner cavity of the preaerator from top to bottom.
Preferably, pre- gas explosion water inlet is set close to the position of lower end in the preaerator, it is described pre- quick-fried being higher than
Pre- gas explosion water outlet is arranged close to the position of the preaerator upper end in the position of gas water inlet certain position.
Preferably, the aeration head is glutinous sand lump micro porous aeration head or gas distribution orifice plate.
Preferably, the hypoxia device and/or anaerobic device are round pond or rectangle form pool, in the hypoxia device and/or
Water inlet is arranged close to the position of lower end in anaerobic device, and water outlet, institute is arranged in the position for being higher than the water inlet certain position
The stirring blade of agitating device is stated between the inlet and outlet.
Preferably, the intermittent aerating device is round pond or rectangle form pool, is arranged in the bottom of the intermittent aerating device
Aeration head.
Preferably, water inlet is set in the position close to the intermittent aerating bottom of device, is being higher than the water inlet one
The position setting water outlet set is positioned, the stirring blade of the agitating device is between the inlet and outlet.
Preferably, water yield is equipped on the preaerator, hypoxia device, anaerobic device, intermittent aerating device
Control valve and water sampling mouth.
Preferably, sludge pipe is equipped on the preaerator, hypoxia device, anaerobic device, intermittent aerating device
Road.
Preferably, it is provided with spoil disposal regulating valve on the spoil disposal pipeline and takes mud sample mouth.
Preferably, the spoil disposal pipeline is as exhausting pipeline.
Preferably, water decanter is set in the intermittent aerating device.
According to the second aspect of the invention, it provides and a kind of handle low C/N using sewage disposal device of the invention and compare sewage
Sewage water treatment method, which is characterized in that the hydraulic detention time in the preaerator, hypoxia device, anaerobic device
Respectively 1.5~4 hours, the hydraulic detention time in the intermittent aerating device was 3~8 hours, wherein the anoxic fills
It sets, the mean sludge concentration of sludge is 2000~3000mg/L, muddy water mixing reflux ratio in anaerobic device and intermittent aerating device
It is 100~300%, system ran for 2~4 periods daily, and flow of inlet water is 5.8~10.8L, after the quiet heavy 30~60min of each cycle
Draining, draining is than being 1/2~1/4.
Preferably, the preaerator aeration quantity is 0.015~0.080m3/h, the intermittent aerating device aeration quantity
For 0.2~0.8m3/h.
Sewage disposal device provided by the invention combines activated sludge process and intermittent aerating method when carrying out sewage treatment
The advantages of, low C/N is realized than wastewater efficient denitrogenation, and system anti-shock loading better performances, surplus sludge volume is low, technique spirit
Living, operating cost is low.The flexible of the treatment facility of various scales can with adaptation to local conditions be realized using denitrification process of the present invention
It assembles, low C/N can not only be efficiently treated and reuse than stain disease, moreover it is possible to is quasi- according to water inlet institute's carbonaceous sources, nitrogen source amount
Fixed corresponding operating parameter, enables all types of stain diseases to be effectively treated using biological denitrificaion group technology integrated technology of the present invention
With reuse.Denitrogenation group technology of the present invention makes full use of limited carbon source while developing sludge internal carbon source to supplement carbon needed for denitrogenation
Source realizes that good nitrogen removal performance and mud decrement, group technology are not necessarily to additional basicity, effectively avoid sludge bulking, efficiently complete
It is handled at stain disease and meets reuse requirement.The present invention realize low C/N than stain disease be effectively treated and reuse, and have height
Effect, low energy consumption, stable effluent quality, assemble flexibly, economical operation, it is convenient for management the advantages that.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the overall schematic of sewage disposal device according to the present invention.
Specific embodiment
The various embodiments that the present invention will be described in more detail that hereinafter reference will be made to the drawings.In various figures, identical element
It is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
As shown in Figure 1, sewage disposal device of the invention include preaerator 2, hypoxia device 3, anaerobic device 4,
It has a rest aerator 5, sewage passes sequentially through these devices by gravity stream, is discharged after precipitating, completes series reaction process.
The preaerator 2 is the reaction tank with thin and tall inner cavity, can be according to the actual situation using round pond or rectangle
Pond is arranged pre- gas explosion water inlet 202 close to the position of lower end in the preaerator 2, is being higher than the pre- gas explosion water inlet
Pre- gas explosion water outlet 203 is arranged close to the position of 2 upper end of preaerator in the position of 202 certain positions.Described
The upstream of preaerator 2 connects peristaltic pump 1, and the outlet of the peristaltic pump 1 is connected with the pre- gas explosion water inlet 202, will
Sewage to be processed is pumped into the preaerator 2.Aeration head 204, the aeration head are set in the preaerator 2
Preferably glutinous sand lump micro porous aeration head.As alternative embodiment, the mode of bottom plate uniform aeration is can also be used in aeration,
That is, the bottom plate uses the double walled floor form of interior sky, the solarization air cap being evenly arranged is set on the bottom plate for being located at upside, is passed through
These solarization air caps are aerated the intermittent aerating device 2.The aeration head 204 passes through the preaerator from top to bottom
2 entire inner cavity.The aeration head 204 is connected with air compressor 6, inputs compressed air by the air compressor 6.
By the aeration of the aeration head 204, reaction zone can not only be oxygenated to meet the existence of aerobic microbiological, it can be with
Stirring, the mixing that reaction zone is realized by being aerated guarantee reaction sufficiently, uniformly, will not generate a large amount of sludge accumulations, sludge bulking
Shape floating situation.
It is internal that aeration head similar with the intermittent aerating device 5 is set when the preaerator 2 is using rectangle form pool
Arrangement (is discussed in detail) below, and agitating device is arranged inside it.
Sewage to be processed carries out a degree of aeration, when sewage flows through this section, organic matter in preaerator 2
Content substantially reduces, and the indexs such as COD, NH4+-N, turbidity are decreased obviously.Water inlet initial stage is dense with sludge absorption effect reduction pollutant
It is main later that removal pollutant is acted on by bacteria metabolism based on degree.Nitrobacteria and nitrite bacteria are autotrophic bacterium,
It is the superiority bacteria spp of this section, under conditions of dissolved oxygen is more sufficient, it is anti-that nitrification can also occur under the action of nitrobacteria for ammonia
It answers, NO2--N and NO3--N is provided for subsequent 3 denitrogenation of hypoxia device, based on NO3--N.Organic matter such as protein etc. is heterotrophism
Bacterium is decomposed, and the products such as carbon dioxide, water, nitric acid, sulfuric acid (if also containing sulphur in protein) are finally oxidized to.
The hypoxia device 3 is round pond or rectangle form pool, and internal setting agitating device 301 is leaned in the hypoxia device 3
Anoxic water inlet 302 is arranged in the position of nearly lower end, and gas water outlet is arranged in the position for being higher than 302 certain position of gas water inlet
303, the stirring blade of the agitating device 301 is between the water inlet 302 and water outlet 303.The water inlet 302 with
The water outlet 203 of the preaerator 2 is connected, and the water inlet 302 and water outlet 303 of the hypoxia device 3 are below institute
State the water outlet 203 of aerator 2.
In hypoxia device 3, mixing is stirred by the agitating device 301, so that micro- life in treatment sewage
Object comes into full contact with substrate, reduces resistance to mass tranfer, and reduce the local accumulation of inhibition intermediate product.Sewage flows through the anoxic
When device 3, anti-nitration reaction mainly occurs, from the sewage entered in the preaerator 2 in the hypoxia device 3 and from
Nitrate nitrogen contained in the muddy water mixed solution that the reflux of intermittent aerating device 5 comes and (has detailed introduction behind specific structure) exists
Under the action of denitrifying bacteria, assimilation denitrification occurs for a part, forms organonitrogen compound, becomes the composition portion of denitrifying bacterium
Point, alienation denitrification occurs for another part, is finally removed in the form of gaseous nitrogen, by the processing of the hypoxia device 3, sewage
In total nitrogen can be effectively removed, organic matter also synchronous removal.
4 structure of anaerobic device is similar with the structure of the hypoxia device 3, the preferably circular pond of the anaerobic device 4
Or rectangle form pool, it is internal that agitating device 401 is set, water inlet 402 is set close to the position of lower end in the anaerobic device 4,
Water outlet 403 is arranged in position higher than 402 certain position of gas water inlet, and the stirring blade of the agitating device 401 is located at
Between the water inlet 402 and water outlet 403.The water inlet 402 is connected with the water outlet 303 of the hypoxia device 3, institute
The water inlet 402 for stating anaerobic device 4 is lower than the water outlet 303 of the hypoxia device 3,；The water outlet 403 of the anaerobic device 4
Lower than the water outlet 203 of the aerator 2.
In the anaerobic device 4, mixing is stirred by the agitating device 401, promotes microorganism and substrate
It comes into full contact with, the sewage of the anaerobic device 4 is entered from the hypoxia device 3, goes to decontaminate by suction-operated at water inlet initial stage
After contaminating object, into stable operation stage, it is converted into degradable and small-molecule substance in this stage macromolecular and hard-degraded substance, it is dirty
Mud hydrolysis acidification, COD show growth trend, PH decline, and denitrifying bacterium carries out denitrification under appropriate conditions.Due to
Sludge hydrolytic, a part of sludge are digested, and sludge quantity is reduced in this stage.
The intermittent aerating device 5 is preferably rectangle form pool, and agitating device 501 is arranged inside the intermittent aerating device 5,
In the bottom of the intermittent aerating device 5, aeration head 502, the preferably glutinous sand lump micro porous aeration head of the aeration head are set.It is described
Aeration head 502 is connected with air compressor 6, inputs compressed air by the air compressor 6.The aeration head 502 can
It arranges as needed multiple rows of, it is preferred that the aeration head 502 is in double arrangement, guarantees that aeration uniformly, passes through the aeration head
502 aeration can not only be oxygenated reaction zone to meet the existence of aerobic microbiological, can also be realized by being aerated
Stirring, the mixing of reaction zone guarantee reaction sufficiently, uniformly, will not generate a large amount of sludge accumulations, sludge bulk floating situation；Make
For alternative embodiment, the mode of bottom plate uniform aeration is can also be used in aeration, that is, the bottom plate uses the double bottom of interior sky
Plate form is arranged the solarization air cap being evenly arranged on the bottom plate for being located at upside, is filled by these solarization air caps to the intermittent aerating
5 are set to be aerated.
Water inlet 503 is set in the position close to 5 bottom of intermittent aerating device, is being higher than the water inlet 503 1
It positions the place of setting and water outlet 504 is set, water decanter 505 is set inside the intermittent aerating device 5, the water decanter 505 passes through branch
Frame 506 is connected on the intermittent aerating device 5, and the water decanter 505 is connected with the water outlet 504, preferably uses rubber
507 airtight connection of glue hose.The water decanter 505 makes the water yield of the intermittent aerating device adjustable.The stirring
The stirring blade of device 501 is between the water inlet 503 and water outlet 504.The water inlet 503 and the anaerobic device
4 water outlet 403 is connected, and the water inlet 503 of the intermittent aerating device 5 is lower than the water outlet 403 of the anaerobic device 4；
The water outlet 504 of the intermittent aerating device 5 is lower than the water outlet 203 of the preaerator 2.In the intermittent aerating device
Mixed liquor reflux unit 8 is set between 5 and hypoxia device 3.The mixed liquor reflux unit 8 includes return line and peristaltic pump
801, peristaltic pump 801 is installed on the return line.In the processed sewage of the intermittent aerating device 5 through the mixed liquor
Reflux unit 8 flows back into the hypoxia device 3, provides nitrification liquid and part carbon source for hypoxia device 3, and can supplement described
The loss of hypoxia device 3 and the sludge in anaerobic device 4.
In the intermittent aerating device 5, the aeration head intermittent aerating, the mode of intermittent aerating not degrade thoroughly
Organic matter fully degraded, Simultaneous Nitrification bacterium and nitrococcus competitive superiority, the ammonia nitrogen not nitrified are further in this device
It is removed, nitration product is back to hypoxia device 3 with muddy water mixed solution and carries out denitrification removal.
The height of the pre- gas explosion water outlet 203 is higher than the hypoxia device 3, anaerobic device 4, intermittent aerating device 5
Inlet and outlet, in this way, only installing a pump in the upstream of preaerator 2, so that it may be realized by the gravity of water flow dirty
The successively flowing of water between the devices.
It is equipped with spoil disposal pipeline on the preaerator 2, hypoxia device 3, anaerobic device 4, intermittent aerating device 5,
Setting water outlet (spoil disposal) amount control valve 7 and water sampling (mud sample) mouth 9 on the spoil disposal pipeline, in this way can to each device
It is enough independently controlled, and is capable of the operational effect of each device of convenient real-time detection.It is set according to influent quality and water variation
It sets each device hydraulic detention time and the cycle of operation, continuum micromeehanics in the period, interval is discharged.The spoil disposal pipeline is according to practical need
It can be used as device exhausting pipeline.Sewage disposal device of the invention can be arranged two or more intervals according to actual demand and expose
To guarantee continuum micromeehanics multiple groups can also be arranged, cooperate operation in whole system device by device of air 5.
The further water process dress such as phosphorus recovery device, ultraviolet disinfection equipment is provided with behind the intermittent aerating device 5
It sets, clear water reserviors is entered after the processing of these devices, the water in the clear water reserviors carries out Treated sewage reusing.
The specific embodiment for carrying out sewage treatment using sewage disposal device of the invention is as follows:
One, the culture and domestication of sludge:
Water treatment plant aeration tank returned sludge and anaerobic pond sludge with common sanitary sewage be respectively aeration tank and anoxic/
Anaerobic pond kind mud, culture domestication 2 months, the previous moon is intake using moment, restricted aeration, is monitored dirty in each device
The sludge concentration (MLSS) of mud, when the average dirt of sludge in 5 three hypoxia device 3, anaerobic device 4, intermittent aerating device devices
When mud concentration reaches 2500mg/L or so, run by testing program (having detailed introduction below).Therebetween, periodic monitoring is discharged water
Matter, when effluent COD concentration lower than 40mg/L, NH4+-N removal rate up to 90% or more when, terminate domestication.
Two, low C/N is than waste water dam operating scheme:
Hydraulic detention time in the preaerator 2, hypoxia device 3, anaerobic device 4 and intermittent aerating device 5
Respectively 2h/2h/2h/4h, sludge is averaged in 5 three hypoxia device 3, anaerobic device 4 and intermittent aerating device devices
Sludge concentration (MLSS) is 2500mg/L, and it is 150% that muddy water, which mixes reflux ratio,.Since system processing COD of sewage is low, microorganism increases
Value is more slow, and high sludge age is conducive to system biological denitrogenation, so sludge age is determined as 30d.System ran for 2 periods daily, week
Phase total inflow is 21.54L, is drained after the quiet heavy 30min of each cycle, and draining is than being 1/3.Test the data obtained with terminate domestication to
Start recording after system is stablized.
For green building and municipal sewage, taking 2 aeration quantity of preaerator is 0.02m3/h, intermittent aerating device 5
Aeration quantity is 0.40m3/h, preaerator 2, hypoxia device 3, anaerobic device 4, intermittent aerating device 5 hydraulic detention time
Respectively 2h, 2h, 2h, 4h, the method for operation that muddy water mixed solution reflux ratio is 1.5.
By the operation of general 15 days or so time, the sewage by sewage disposal device processing of the invention is before treatment
It is following (measuring 10 days processing data altogether) with the data that are measured after processing:
COD value in COD value, water outlet and COD removal rate in water inlet is as shown in Table 1:
Table one
TN content in TN content, water outlet and TN removal rate in water inlet is as shown in Table 2:
Table two
NH4+-N content in NH4+-N content, water outlet and NH4+-N removal rate in water inlet is as shown in Table 3:
Table three
The comprehensive data repeatedly measured, it can be deduced that by the synthesis of the processed sewage of sewage disposal device of the invention
Data are as shown in the table:
Influent quality:
Effluent quality
Sewage disposal device of the invention combines the excellent of activated sludge process and intermittent aerating method when carrying out sewage treatment
Point realizes low C/N than wastewater efficient denitrogenation, and system anti-shock loading better performances, surplus sludge volume is low, and technique is flexible, fortune
Row expense is low.Flexibly assembling for the treatment facility of various scales can with adaptation to local conditions be realized using denitrification process of the present invention,
Low C/N can not only be efficiently treated and reuse than stain disease, moreover it is possible to be drafted accordingly according to water inlet institute's carbonaceous sources, nitrogen source amount
Operating parameter, enable all types of stain diseases using biological denitrificaion group technology integrated technology of the present invention be effectively treated with time
With.Denitrogenation group technology of the present invention makes full use of limited carbon source while developing sludge internal carbon source to supplement carbon source needed for denitrogenation, in fact
Existing good nitrogen removal performance and mud decrement, group technology are not necessarily to additional basicity, effectively avoid sludge bulking, efficiently complete dirty useless
Water process and meet reuse requirement.To sum up, the present invention realize low C/N than stain disease be effectively treated and reuse, and have
There is efficient, low energy consumption, stable effluent quality, assembles flexible, economical operation, is convenient for management.The present invention experiment proves that:
The COD range of its sewage is 60~180mg/L, in the case that ammonia nitrogen range is 40~75mg/L, through sewage treatment of the invention
After equipment processing, water outlet COD range is 4.6mg/L~12.7mg/L, and ammonia nitrogen range is 0~0.6mg/L, can achieve reuse mark
It is quasi-.When COD is in 635~1500mg/L, when ammonia nitrogen range is 52~83mg/L, in the case where constant operating parameter, by 30d's
Sludge acclimatization, water outlet COD range are 35~47mg/L, and ammonia nitrogen range is 0.4~2.3mg/L, and effluent quality still meets reuse
Water requirement.
It is as described above according to the embodiment of the present invention, these embodiments details all there is no detailed descriptionthe, also not
Limiting the invention is only the specific embodiment.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is principle and practical application in order to better explain the present invention, thus belonging to making
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention is only by right
The limitation of claim and its full scope and equivalent.
Claims (10)
1. a kind of sewage disposal device, which is characterized in that including preaerator, hypoxia device, anaerobic device and intermittent aerating
Device, sewage passes sequentially through these devices by gravity stream, inside the hypoxia device, anaerobic device and intermittent aerating device
Agitating device is set, aeration head is provided in the preaerator and intermittent aerating device, in the intermittent aerating device
Mixed liquor reflux unit is set between hypoxia device, is returned through the processed sewage of intermittent aerating device through the mixed liquor
Stream device flows back into the hypoxia device；The preaerator be the reaction tank with thin and tall inner cavity, the aeration head from
Top to bottm passes through the entire inner cavity of the preaerator.
2. sewage disposal device according to claim 1, which is characterized in that in the preaerator close to the position of lower end
Pre- gas explosion water inlet is installed, in the position for being higher than the pre- gas explosion water inlet certain position or close to the preaerator
Pre- gas explosion water outlet is arranged in the position of upper end.
3. sewage disposal device according to claim 1, which is characterized in that the hypoxia device and/or anaerobic device are
Water inlet is arranged close to the position of lower end in the hypoxia device and/or anaerobic device in round pond or rectangle form pool, described being higher than
The position of water inlet certain position is arranged water outlet, the stirring blade of the agitating device be located at the inlet and outlet it
Between.
4. sewage disposal device according to claim 1, which is characterized in that the intermittent aerating device is round pond or square
Aeration head is arranged in the bottom of the intermittent aerating device in shape pond.
5. sewage disposal device according to claim 1, which is characterized in that close to the intermittent aerating bottom of device
Water inlet is arranged in position, and water outlet, the paddle of the agitating device is arranged in the position for being higher than the water inlet certain position
Piece is between the inlet and outlet.
6. sewage disposal device according to claim 1-5, which is characterized in that in the preaerator, lack
Oxygen device, anaerobic device are equipped with water yield control valve and water sampling mouth on intermittent aerating device.
7. sewage disposal device according to claim 1-5, which is characterized in that in the preaerator, lack
Oxygen device, anaerobic device are equipped with spoil disposal pipeline on intermittent aerating device.
8. sewage disposal device according to claim 8, which is characterized in that be provided with spoil disposal tune on the spoil disposal pipeline
It saves valve and takes mud sample mouth.
9. a kind of handle processing method of the low C/N than sewage using the described in any item sewage disposal devices of claim 1-8,
It being characterized in that, the hydraulic detention time in the preaerator, hypoxia device, anaerobic device is respectively 1.5~4 hours,
Hydraulic detention time in the intermittent aerating device is 3~8 hours, wherein the hypoxia device, anaerobic device and interval
The mean sludge concentration of sludge is 2000~3000mg/L in aerator, and it is 100~300% that muddy water, which mixes reflux ratio, system
2~4 periods of operation daily, flow of inlet water are 5.8~10.8L, are drained after the quiet heavy 30~60min of each cycle, draining than for 1/2~
1/4。
10. according to claim 9 handle processing method of the low C/N than sewage, which is characterized in that the preaerator
Aeration quantity is 0.015~0.080m3/h, and the intermittent aerating device aeration quantity is 0.2~0.8m3/h.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006284174A1 (en) * | 2005-08-22 | 2007-03-01 | Juraj Csefalvay | Waste water purifying device |
| CN101700948A (en) * | 2009-11-20 | 2010-05-05 | 上海应用技术学院 | Wastewater treatment technology for textile dyeing and finishing industry |
| CN103880241B (en) * | 2014-02-18 | 2015-08-26 | 河北农业大学 | A kind of sewage disposal device and sewage water treatment method |
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2017
- 2017-08-24 CN CN201710737690.2A patent/CN109422422A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006284174A1 (en) * | 2005-08-22 | 2007-03-01 | Juraj Csefalvay | Waste water purifying device |
| CN101700948A (en) * | 2009-11-20 | 2010-05-05 | 上海应用技术学院 | Wastewater treatment technology for textile dyeing and finishing industry |
| CN103880241B (en) * | 2014-02-18 | 2015-08-26 | 河北农业大学 | A kind of sewage disposal device and sewage water treatment method |
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Application publication date: 20190305 |