CN106946354A - A kind of cesspool sewage end-o f-pipe -control device - Google Patents
A kind of cesspool sewage end-o f-pipe -control device Download PDFInfo
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- CN106946354A CN106946354A CN201710349401.1A CN201710349401A CN106946354A CN 106946354 A CN106946354 A CN 106946354A CN 201710349401 A CN201710349401 A CN 201710349401A CN 106946354 A CN106946354 A CN 106946354A
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- 239000010865 sewage Substances 0.000 title claims abstract description 56
- 238000006243 chemical reaction Methods 0.000 claims abstract description 116
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000001301 oxygen Substances 0.000 claims abstract description 79
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 79
- 239000002689 soil Substances 0.000 claims abstract description 30
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000007667 floating Methods 0.000 claims description 16
- 102000002322 Egg Proteins Human genes 0.000 claims description 5
- 108010000912 Egg Proteins Proteins 0.000 claims description 5
- 210000004681 ovum Anatomy 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 241000196324 Embryophyta Species 0.000 description 22
- 239000007788 liquid Substances 0.000 description 12
- 210000003608 fece Anatomy 0.000 description 6
- 239000010871 livestock manure Substances 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 210000000697 sensory organ Anatomy 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000018927 edible plant Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 230000010148 water-pollination Effects 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The embodiment provides a kind of cesspool sewage end-o f-pipe -control device, including outer frame body, biochemical reaction mechanism, multi-layer biological reactor and oxygen supply equipment, the middle part of outer frame body is provided with baffle plate, and outer frame body is separated into the first accommodating cavity and the second accommodating cavity by it, and biochemical reaction mechanism includes：The AO reaction tanks that first accommodating cavity is constituted；Multi-layer biological reactor includes：It is arranged at the internal frame body in the second accommodating cavity body, there is the first prepsetting gap between its first side wall and baffle plate, first prepsetting gap is connected by the second overfall for going out separator with AO reaction tanks, the second sidewall of internal frame body and the second sidewall of outer frame body fit, aerobic reaction layer is sequentially provided with internal frame body from bottom to up, and oxygen conversion zone and top soil, with being equipped with multiple aeration structures in the second prepsetting gap in AO reaction tanks, multiple aeration structures are connected with oxygen supply equipment, can be in the colourity in effectively removing sewage, while organic pollution, intensified denitrification and dephosphorization effect.
Description
Technical field
The present invention relates to technical field of environment protection equipment, more particularly to a kind of cesspool sewage end-o f-pipe -control device.
Background technology
With new rural village, the development and popularization of beautiful rural construction, the whole county's rural environment comprehensive regulation in main plot as fire such as
The bitter edible plant.Transformation wherein to rural area septic tank is one of emphasis.The technique that transformation rural area septic tank is generally used at present is scattered
The grid septic tank of family four, the cardinal principle of four grid septic tanks is：Sewage is discharged to the first lattice by water inlet first, the proportion in the first lattice
The thing such as larger solids and parasitic ovum precipitates, and starts preliminary fermentation and decomposes, the sewage treated through the first lattice can
It is divided into three layers：The excrement slag of pasty state excrement skin, the liquid manure for comparing clarification and solid-like, the second lattice are flowed into by the liquid manure of preliminary exposition,
And float superincumbent excrement skin and then stay in the continuation fermentation of the first lattice with following excrement slag is deposited on；In the second lattice, liquid manure continues
Fermentation is decomposed, and worm's ovum continues to sink, and pathogen is gradually dead, and liquid manure obtains further innoxious, and the excrement skin and excrement slag of generation are thick
Degree is substantially reduced than the first lattice, and the liquid manure for flowing into the 3rd lattice has typically become thoroughly decomposed, and wherein germ and parasitic ovum are killed substantially；
3rd lattice function mainly plays temporarily storage harmless liquid manure substantially；4th lattice are commonly artificial swamp, artificial swamp
Including protection walls, big metalling, limestone layer, small crushed stone layer, planting soil layer and vegetation, vegetation plantation is in planting soil layer
On.
This actual operation of four grid septic tanks is more attractive in form compared to three-grid septic tank, views and admires with better function, but real
Still there are the following problems in the use of border.
First, the 3rd sewage water outlet of septic tank is different from conventional sanitary sewage, and many rural area septic tanks are not enter day
Normal living drainage, so septic tank effluent pollutant is higher, COD（cod）, biochemical oxygen demand (BOD)（bod）, ammonia nitrogen
It is average to reach 1000,500,40 respectively；But many four format the lattice wetland variation of excrement the 4th, remain using conventional life
Wastewater influent standard, and wetland variation actual treatment duty ratio is relatively low, causes water body sense organ poor.
Second, because water inlet pollutant concentration is high, due to not having power oxygen supply, the 4th lattice end wetland is essentially and oxygen/
Anaerobic state, water body sense organ is poor, and actual effluent color dilution is poor, organic pollution high, poor denitrification and dephosphorization effect, is extremely difficult to comprehensive row
Secondary effluent standard；And it is easily corrupt to thereby result in this lattice water body, the problems such as easily attracting mosquito.
In summary, the colour difference of the sewage after current cesspool sewage end-o f-pipe -control, organic pollution are high and denitrogenation is removed
Phosphorus effect is poor.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of cesspool sewage end-o f-pipe -control device, can effectively remove sewage
In colourity, organic pollution while, intensified denitrification and dephosphorization effect.
In order to achieve the above object, The embodiment provides a kind of cesspool sewage end-o f-pipe -control device, including：
Outer frame body, biochemical reaction mechanism, multi-layer biological reactor and oxygen supply equipment, wherein, the middle part of outer frame body is provided with a baffle plate, baffle plate
Outer frame body is separated into the first accommodating cavity and the second accommodating cavity, biochemical reaction mechanism includes：It is made up of the first accommodating cavity
AO reaction tanks；It is arranged at the central draft tube being connected in AO reaction tanks and with AO reaction tanks bottom；It is arranged at central draft tube
The first of bottom goes out separator；The water inlet pipe on the first side wall of outer frame body is arranged in, one end of water inlet pipe exposes to housing
The first side wall of body, the other end at the top of central draft tube with being connected；Second be arranged on baffle plate goes out separator, second
Go out the distance between separator and AO reaction tanks bottom and go out the distance between separator and AO reaction tanks bottom more than first；
Multi-layer biological reactor includes：The internal frame body in the second accommodating cavity body is arranged at, is had between the first side wall and baffle plate of internal frame body
There is the first prepsetting gap, the first prepsetting gap is connected by the second overfall for going out separator with AO reaction tanks, internal frame body
Bottom be detachably connected with an inside casing bottom, between the bottom inside casing bottom and the bottom of outer frame body have the second prepsetting gap, it is interior
The second sidewall of framework and the second sidewall of outer frame body fit, be sequentially provided with from bottom to up in internal frame body aerobic reaction layer, and
Oxygen conversion zone and top soil, and aerobic reaction layer respectively with outer frame body and and oxygen conversion zone be connected, top soil and
And oxygen conversion zone is connected, the first side wall of outer frame body and the two opposite side walls that the second sidewall of outer frame body is outer frame body, and outside
Plane where the first side wall of framework is parallel with plane where baffle plate with plane where the second sidewall of outer frame body, internal frame body
The second sidewall of the first side wall and internal frame body is the two opposite side walls of internal frame body；With being all provided with the second prepsetting gap in AO reaction tanks
There are multiple aeration structures, multiple aeration structures are connected with oxygen supply equipment；Wherein, multiple aerations in AO reaction tanks are arranged at
Structure is respectively positioned on AO reaction tanks bottom.
Optionally, oxygen supply equipment includes：Fixed support, solar components, oxygen increasing pump and tracheae；Wherein, solar energy group
Part is arranged on fixed support, and oxygen increasing pump is electrically connected with solar components, and one end of tracheae is connected with the output end of oxygen increasing pump,
The other end is connected with multiple aeration structures in AO reaction tanks and in the second prepsetting gap.
Optionally, inside casing bottom is provided with multiple first holes, and aerobic reaction layer passes through multiple first holes and housing body phase
Connection.
Optionally, intermediate layer laminate, the first support feet and the second support feet are additionally provided with internal frame body, intermediate layer laminate is located at
Between aerobic reaction layer and simultaneous oxygen conversion zone, the first support feet is respectively positioned in aerobic reaction layer with the second support feet, and first
One end of spike is connected with intermediate layer laminate, the first side wall connection of the other end and internal frame body, and one end of the second support feet is with
Interbed laminate is connected, and the second sidewall of the other end and internal frame body is connected；Wherein, intermediate layer laminate is provided with multiple second holes,
Aerobic reaction layer is connected with simultaneous oxygen conversion zone by multiple second holes.
Optionally, layer of plants laminate, the 3rd support feet and the 4th support feet are additionally provided with internal frame body, layer of plants laminate is located at
And between oxygen conversion zone and top soil, the 3rd support feet is respectively positioned in simultaneous oxygen conversion zone with the 4th support feet, and the 3rd
One end of spike is connected with layer of plants laminate, the first side wall connection of the other end and internal frame body, one end of the 4th support feet and plant
Nitride layer laminate is connected, and the second sidewall of the other end and internal frame body is connected；Wherein, layer of plants laminate is provided with multiple 3rd holes,
And oxygen conversion zone is connected with top soil by multiple 3rd holes.
Optionally, the first middle part bearing bar, top and the intermediate layer laminate of the first middle part bearing bar are additionally provided with internal frame body
Abut, the other end is abutted with inside casing bottom.
Optionally, the second middle part bearing bar, top and the layer of plants laminate of the second middle part bearing bar are additionally provided with internal frame body
Abut, the other end is abutted with intermediate layer laminate, and the axis of the second middle part bearing bar is overlapped with the axis of the first middle part bearing bar.
Optionally, what is be spaced in the second prepsetting gap is provided with multiple support bases, one end and the inside casing bottom of support base
Abut, the other end is abutted with the bottom of outer frame body.
Optionally, aerobic reaction layer and the ball being equipped with simultaneous oxygen conversion zone in ball-type floating stuffing, and aerobic reaction layer
The density of type floating stuffing is more than the density of the ball-type floating stuffing in simultaneous oxygen conversion zone.
Optionally, boulder bed and metalling are provided with top soil, boulder bed is located at the bottom of top soil, rubble
Layer is covered on boulder bed.
The such scheme of the present invention has following beneficial effect：
In an embodiment of the present invention, the lattice sewage of septic tank the 3rd enters central draft tube by water inlet pipe, in central draft tube
Interior formation anaerobism suspended sludge layer, carries out anaerobic organism reaction, then goes out separator by first and sewage sludge is detested
Oxygen/aerobic separation, anaerobic sludge is stayed in central draft tube, and sewage goes out separator gap from first and flows into AO reaction tanks outer ring
Aerobic region in, due to there is multiple aeration structures to be aerated in aerobic region, stirred by being aerated, form mixed in aerobic region
The organic pollution in aerobic microbiological group degraded, oxidation or absorption effluent in activated sludge tank, mixed active sludge-tank is closed, and
After aerobic reaction carries out certain time, sewage goes out separator by second and carries out gas-liquid-solid separation, makes the oxygen in sewage
Stay in pond, while the sludge settling in sewage is fallen into pond, supernatant enters many by the second overfall for going out separator
Layer bioreactor, sewage flows through the aerobic reaction layer and oxygen conversion zone and top soil of multi-layer biological reactor successively, together
When by aeration structure control dissolved oxygen content, constitute MBBR formula aerobic-anaerobic biological respinse unit, make
Obtain and synchronous nitration and denitrification effect is formed in multi-layer biological reactor, and then efficiently remove the colourity in sewage, organic contamination
Thing and ammonia nitrogen, intensified denitrification and dephosphorization effect.
Brief description of the drawings
Fig. 1 be the embodiment of the present invention in outer frame body, biochemical reaction mechanism and multi-layer biological reactor structural representation it
One；
Fig. 2 is the two of the structural representation of outer frame body, biochemical reaction mechanism and multi-layer biological reactor in the embodiment of the present invention；
Fig. 3 is the structural representation of fixed support and solar components in the embodiment of the present invention；
Fig. 4 is the structural representation of oxygen increasing pump and tracheae in the embodiment of the present invention；
Fig. 5 is the structural representation of outer frame body and multi-layer biological reactor in the embodiment of the present invention.
Description of reference numerals：
1st, AO reaction tanks；2nd, central draft tube；3rd, first goes out separator；4th, water inlet pipe；5th, second goes out separator；6th, housing
Body；7th, inlet through hole；8th, internal frame body；9th, aerobic reaction layer；10th, simultaneous oxygen conversion zone；11st, top soil；12nd, fixed support；
13rd, solar components；14th, oxygen increasing pump；15th, tracheae；16th, aeration structure；17th, intermediate layer laminate；18th, layer of plants laminate；19th,
One middle part bearing bar；20th, the second middle part bearing bar；21st, ball-type floating stuffing；22nd, wetland plant；23rd, support base；24th, it is interior
Frame bottom；25th, the first support feet；26th, the second support feet；27th, the 3rd support feet；28th, the 4th support feet；29th, baffle plate.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.
As shown in Figures 1 to 5, specific embodiment of the invention provides a kind of cesspool sewage end-o f-pipe -control device, bag
Include：Outer frame body 6, biochemical reaction mechanism, multi-layer biological reactor and oxygen supply equipment.
Wherein, the middle part of outer frame body 6 is provided with a baffle plate 29, and outer frame body 6 is separated into the first accommodating cavity and the by baffle plate 29
Two accommodating cavitys, biochemical reaction mechanism includes：The AO reaction tanks 1 being made up of the first accommodating cavity；Be arranged in AO reaction tanks 1 and
The central draft tube 2 being connected with the bottom of AO reaction tanks 1；Be arranged at the bottom of central draft tube 2 first goes out separator 3；Wear
In the water inlet pipe 4 on the first side wall of outer frame body 6, one end of water inlet pipe 4 exposes to the first side wall of outer frame body 6, the other end with
The top of central draft tube 2 is connected；Second be arranged on baffle plate 29 goes out separator 5, and second to go out separator 5 and AO anti-
The distance between bottom of pond 1 is answered to go out the distance between separator 3 and the bottom of AO reaction tanks 1 more than first.As one preferably
Example, the above-mentioned first accommodating cavity can be a closed cavity, and the second accommodating cavity can be an open cavity.
Wherein, in a particular embodiment of the present invention, multi-layer biological reactor includes：It is arranged in the second accommodating cavity body
Internal frame body 8, has the first prepsetting gap between the first side wall and baffle plate 29 of internal frame body 8, the first prepsetting gap goes out by second
The overfall of separator 5 is connected with AO reaction tanks, and the bottom of internal frame body 8 is detachably connected with an inside casing bottom 24, inside casing bottom
There is the second prepsetting gap, the second sidewall of internal frame body 8 and the second of outer frame body 6 between 24 bottom and the bottom of outer frame body 6
Side wall fits, and is sequentially provided with aerobic reaction layer 9 and oxygen conversion zone 10 and top soil 11 in internal frame body 8 from bottom to up, and
Aerobic reaction layer 9 is connected with outer frame body 6 and simultaneous oxygen conversion zone 10 respectively, and top soil 11 is connected with simultaneous oxygen conversion zone 10
It is logical, the first side wall of outer frame body 6 and the two opposite side walls that the second sidewall of outer frame body 6 is outer frame body 6, and the first of outer frame body 6
Plane where the wall of side is parallel with the place plane of baffle plate 29 with plane where the second sidewall of outer frame body 6, the first side of internal frame body 8
Wall and the two opposite side walls that the second sidewall of internal frame body 8 is internal frame body 8.As a preferred example, above-mentioned second goes out moisture
It can be water outlet three phase separator from device 5, be convenient for gas-liquid-solid separation.
Wherein, in a particular embodiment of the present invention, it is to connect between above-mentioned first prepsetting gap and the second prepsetting gap
, and communicate with each other to form an inlet passage, make the dirt for entering multi-layer biological reactor from the second overfall for going out separator 5
Water can smoothly enter aerobic reaction layer 9.
And in a particular embodiment of the present invention, tied in AO reaction tanks 1 with being equipped with multiple aerations in the second prepsetting gap
Structure 16, multiple aeration structures 16 are connected with oxygen supply equipment；Wherein, multiple aeration structures 16 in AO reaction tanks 1 are arranged at
It is respectively positioned on the bottom of AO reaction tanks 1.As a preferred example, above-mentioned aeration structure 16 can be a specially gas stone or one
Pipeline is, it is necessary to which explanation, if aeration structure 16 is a pipeline, it is required that the tube wall of the pipeline is provided with multiple through holes, is easy to
Oxygen is exported into AO reaction tanks 1 or multi-layer biological reactor.
Wherein, in a particular embodiment of the present invention, one end of above-mentioned water inlet pipe 4 and the delivery port of the lattice of septic tank the 3rd connect
It is logical, for the sewage in the lattice of septic tank the 3rd to be led in cesspool sewage end-o f-pipe -control device, make cesspool sewage end
Reason device is handled cesspool sewage end, removes colourity, organic pollution and the ammonia nitrogen in sewage, intensified denitrification and dephosphorization
Effect.And in a particular embodiment of the present invention, for ease of setting above-mentioned water inlet pipe 4, can be set on the first side wall of outer frame body 6
One inlet through hole 7, makes water inlet pipe 4 be arranged in the inlet through hole 7.
Wherein, in a particular embodiment of the present invention, above-mentioned oxygen supply equipment is mainly used in biochemical reaction mechanism and multilayer
Oxygen is conveyed in bioreactor.Specifically, in a particular embodiment of the present invention, above-mentioned oxygen supply equipment includes：Fixed support
12；Solar components 13；Oxygen increasing pump 14；And tracheae 15.Wherein, solar components 13 are arranged on fixed support 12, oxygenation
Pump 14 is electrically connected with solar components 13, and one end of tracheae 15 is connected with the output end of oxygen increasing pump 14, and the other end reacts with AO
Multiple aeration structures 16 in pond 1 and in the second prepsetting gap are connected.As an example, above-mentioned solar components 13 can
Think a solar panels.
Wherein, in a particular embodiment of the present invention, for ease of many into AO reaction tanks 1 and in the second prepsetting gap
The individual intermittent delivery oxygen of aeration structure 16, above-mentioned oxygen increasing pump 14 can be oil-free DC blowing aeration pump, and tracheae 15 can
Think distributed tracheae.And in a particular embodiment of the present invention, above-mentioned solar components 13 are mainly used in carrying for oxygen increasing pump 14
For DC driven, so that Power Supply Assembly need not be additionally provided for oxygen increasing pump 14, it is not necessary to later maintenance, reduction is runed into
This.It should be noted that for ease of the normal work of solar components 13, above-mentioned fixed support 12 should be fixed on unobstructed region
The position in the unobstructed region in position, such as peasant household.It should be further stated that, to ensure that multi-layer biological reactor can be well
Purify water, the micro dissolved oxygen that multiple aeration structures 16 in the second prepsetting gap are supplied after aerobic reaction layer 9,
The concentration of dissolved oxygen drops below 0.5 mg/litre.
Optionally, in a particular embodiment of the present invention, above-mentioned inside casing bottom 24 is provided with multiple first holes, aerobic reaction
Layer 9 is connected by multiple first holes with outer frame body 6, consequently facilitating entering multilayer from the second overfall for going out separator 5
The oxygen that the aeration structure 16 that the sewage of bioreactor can smoothly enter in aerobic reaction layer 9, and the second prepsetting gap is exported
Gas can enter aerobic reaction layer 9, aerobic reaction layer 9 is formed aerobic environment.And as an example, above-mentioned first hole
Diameter can be 50 millimeters（mm）, and above-mentioned multiple first holes can be evenly arranged on inside casing bottom 24, be easy to water distribution uniformity.
Optionally, in a particular embodiment of the present invention, be additionally provided with above-mentioned internal frame body 8 intermediate layer laminate 17, first
The support feet 26 of spike 25 and second, intermediate layer laminate 17 is located between aerobic reaction layer 9 and simultaneous oxygen conversion zone 10, the first support feet
25 and second support feet 26 be respectively positioned in aerobic reaction layer 9, and one end of the first support feet 25 is connected with intermediate layer laminate 17, separately
One end is connected with the first side wall of internal frame body 8, and one end of the second support feet 26 is connected with intermediate layer laminate 17, the other end and inside casing
The second sidewall connection of body 8.Wherein, intermediate layer laminate 17 is provided with multiple second holes, aerobic reaction layer 9 and simultaneous oxygen conversion zone
10 are connected by multiple second holes, consequently facilitating the water body of aerobic reaction layer 9 enters and oxygen conversion zone 10.It is excellent as one
The example of choosing, the diameter of above-mentioned second hole can be 50mm, and above-mentioned multiple second holes can be with being arranged in centre layer by layer
On plate 17, it is easy to water distribution uniformity.It should be noted that the above-mentioned support feet 26 of first support feet 25 and second is mainly used in support
Interbed laminate 17, is easy to the fixation of intermediate layer laminate 17.
Optionally, in a particular embodiment of the present invention, above-mentioned aerobic reaction layer 9 in simultaneous oxygen conversion zone 10 with being equipped with ball
The ball-type that the density of ball-type floating stuffing 21 in type floating stuffing 21, and aerobic reaction layer 9 is more than in simultaneous oxygen conversion zone 10 hangs
The density of floating filler 21.As a preferred example, above-mentioned ball-type floating stuffing 21 can be a diameter of 80mm porous rotation
The density for turning the ball-type floating stuffing 21 in ball-type floating stuffing, aerobic reaction layer 9 is about the 70% to 85% of this sheaf space, and oxygen
The density of ball-type floating stuffing 21 in conversion zone 10 is about the 40% to 60% of this sheaf space.
Specifically, in a particular embodiment of the present invention, above-mentioned ball-type floating stuffing 21 can be by polypropylene material injection
Into point inside and outside bilayer sphere, outside is hollow fish netted spheroid, and inside is spinning ball.And ball-type floating stuffing 21 mainly rises
The effect of biofilm carrier, the effect of suspension stayed is carried while having concurrently, with biological attachment power is strong, surface area is big, porosity is high,
Chemistry and biological qualitative good, durable in use, not dissolution nuisance, secondary pollution, antiultraviolet, anti-aging, hydrophily are not caused
Can be strong the features such as, consequently facilitating the sewage that 9 pairs of aerobic reaction layer flows through aerobic reaction layer 9 carries out purified treatment, and and oxygen it is anti-
The sewage for answering 10 pairs of layer to flow through simultaneous oxygen conversion zone 10 carries out purified treatment.
Optionally, in a particular embodiment of the present invention, be additionally provided with above-mentioned internal frame body 8 layer of plants laminate 18, the 3rd
The support feet 28 of spike 27 and the 4th, layer of plants laminate 18 is located between simultaneous oxygen conversion zone 10 and top soil 11, the 3rd support
The support feet 28 of pin 27 and the 4th is respectively positioned in simultaneous oxygen conversion zone 10, and one end of the 3rd support feet 27 connects with layer of plants laminate 18
Connect, the other end is connected with the first side wall of internal frame body 8, one end of the 4th support feet 28 is connected with layer of plants laminate 18, the other end
It is connected with the second sidewall of internal frame body 8；Wherein, layer of plants laminate 18 is provided with multiple 3rd holes, and oxygen conversion zone 10 with planting
Thing grown layer 11 is connected by multiple 3rd holes, consequently facilitating the water body of simultaneous oxygen conversion zone 10 enters top soil 11,
Further purified water by top soil 11.As a preferred example, the diameter of above-mentioned 3rd hole can be
20mm, and above-mentioned multiple 3rd holes can be evenly arranged on layer of plants laminate 18, be easy to water distribution uniformity.It should be noted that
Above-mentioned 3rd support feet 27 and the 4th support feet 28 are mainly used in support layer of plants laminate 18, are easy to consolidating for layer of plants laminate 18
It is fixed.
Optionally, in a particular embodiment of the present invention, boulder bed and metalling, ovum are provided with above-mentioned top soil 11
Rock layers are located at the bottom of top soil 11, and metalling is covered on boulder bed, so that 11 pairs of top soil enters plant
The sewage of grown layer 11 carries out purified treatment.It should be noted that the half height of metalling one is in water body（The sewage treated）
Liquid level in.
In addition, in a particular embodiment of the present invention, for ease of being combined into subsurface wetland, preferably purify water, can
The plantation wetland plant 22 in the top soil 11, but the wetland plant 22 of plantation root system must water body liquid level
It is interior.It should be noted that except setting boulder bed to be filled out with other wetlands in addition to metalling, also can be set in top soil 11
Material.
As a preferred example, in a particular embodiment of the present invention, the thickness of above-mentioned metalling can be 3 centimetres
To 5 centimetres, the thickness of metalling can be 2 centimetres to 3 centimetres.
Optionally, in a particular embodiment of the present invention, when the water level in top soil 11 is too high, plant need to be discharged
Water in grown layer 11, thus can second sidewall and the outer frame body 6 of the corresponding internal frame body 8 of top soil 11 second sidewall
One delivery port of upper setting, to discharge unnecessary water.
Optionally, in a particular embodiment of the present invention, the first middle part bearing bar 19 is additionally provided with above-mentioned internal frame body 8, should
The top of first middle part bearing bar 19 is abutted with intermediate layer laminate 17, and the other end is abutted with inside casing bottom 24.In addition, above-mentioned internal frame body
The second middle part bearing bar 20 is additionally provided with 8, the top of the second middle part bearing bar 20 is abutted with layer of plants laminate 18, the other end with
Intermediate layer laminate 17 is abutted, and the axis of the second middle part bearing bar 20 is overlapped with the axis of the first middle part bearing bar 19.
Wherein, in a particular embodiment of the present invention, the main function of above-mentioned first middle part bearing bar 19 is middle for support
Plate 17, are easy to the fixation of intermediate layer laminate 17 layer by layer.Similar, the main function of above-mentioned second middle part bearing bar 20 is planted for support
Nitride layer laminate 18, is easy to the fixation of layer of plants laminate 18.
Optionally, in a particular embodiment of the present invention, what is be spaced in above-mentioned second prepsetting gap is provided with multiple supports
Base 23, one end of support base 23 is abutted with inside casing bottom 24, and the other end is abutted with the bottom of outer frame body 6.
Wherein, in a particular embodiment of the present invention, above-mentioned multiple support bases 23 are in interior structural support part, support
Portion's structure（That is internal frame body 8）All construction weights.And in a particular embodiment of the present invention, internal frame body 8 is extractable formula multilayer
Structure, mainly using polyvinyl chloride（PVC, Polyvinyl chloride）Welding structure or Corrosion Protection of Fiber Reinforced Plastics structure are made,
And whole internal frame body 8 can be extracted out of outer frame body 6, while hierarchy（I.e. above-mentioned aerobic reaction layer 9 and oxygen conversion zone
10 with top soil 11）Can also step-by-step processing., can be in internal frame body for ease of extracting internal frame body 8 as a preferred example
Leader is set on 8 the first side wall.
As can be seen here, in a particular embodiment of the present invention, the lattice sewage of septic tank the 3rd is led by water inlet pipe 4 into center
Flow cartridge 2, forms anaerobism suspended sludge layer in central draft tube 2, carries out the macromolecular complex in anaerobic organism reaction, degraded sewage
Matter and the organic matter of difficult degradation, then go out separator 3 by first and aerobic/anaerobic separation are carried out to sewage sludge, anaerobism is dirty
Mud is stayed in central draft tube 2, and sewage goes out the gap of separator 3 from first and flowed into the aerobic region of the outer ring of AO reaction tanks 1, shape
Into an anaerobic-aerobic（AO）System, due to there is multiple aeration structures 16 to be aerated in aerobic region, is stirred, aerobic by being aerated
Formed in region in mixed active sludge-tank, mixed active sludge-tank in aerobic microbiological group degraded, oxidation or absorption effluent
Organic pollution, and after aerobic reaction carries out certain time, sewage goes out separator 5 by second and carries out gas-liquid-solid separation,
The oxygen in sewage is set to stay in pond, while the sludge settling in sewage is fallen into pond, supernatant goes out separator 5 by second
Overfall enter multi-layer biological reactor, sewage flows through the aerobic reaction layer 9 and oxygen conversion zone of multi-layer biological reactor successively
10 with top soil 11, while controlling dissolved oxygen content by aeration structure 16 in the second prepsetting gap, constitute moving bed
Biofilm reactor（MBBR）Formula aerobic-anaerobic（OA）Biological respinse unit so that synchronous nitre is formed in multi-layer biological reactor
Change denitrification, and then quickly, efficiently remove colourity, organic pollution and the ammonia nitrogen in sewage, intensified denitrification and dephosphorization effect.
Wherein, the flow direction of sewage is as illustrated by the arrows in fig. 1.
It should be noted that to ensure cesspool sewage end-o f-pipe -control device energy normal work, cesspool sewage end
Device is managed when handling sewage, it is desirable to which the liquid level in central draft tube 2 is higher about 10 lis than the liquid level in aerobic region
Rice is to 15 centimetres, and the liquid level in multi-layer biological reactor is lower about 10 centimetres to 20 lis than the liquid level in aerobic region
Rice.
In addition, it is noted that after cesspool sewage end-o f-pipe -control device handles the sewage of a period of time, multilayer is given birth to
Certain mud accumulation is had in thing reactor, and because internal frame body 8 is extractable formula sandwich construction, so, when lifting inside casing
After body 8, there is no other structures unit in outer frame body 6, mud can be cleared out directly, and the internal frame body 8 put forward can be layered and tear open
Unload, and can rinse, be prevented effectively from outer frame body 6 the problem of occurring to block cleaning inconvenience.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of cesspool sewage end-o f-pipe -control device, it is characterised in that including：Outer frame body, biochemical reaction mechanism, multi-layer biological
Reactor and oxygen supply equipment, wherein, the middle part of the outer frame body is provided with a baffle plate, and the outer frame body is separated into the by the baffle plate
One accommodating cavity and the second accommodating cavity, the biochemical reaction mechanism include：The AO reactions being made up of the described first accommodating cavity
Pond；It is arranged at the central draft tube being connected in the AO reaction tanks and with the AO reaction tanks bottom；The center is arranged to lead
The first of flow cartridge bottom goes out separator；It is arranged in the water inlet pipe on the first side wall of the outer frame body, the one of the water inlet pipe
End exposes to the first side wall of the outer frame body, and the other end at the top of the central draft tube with being connected；It is arranged at the gear
Second on plate goes out separator, and described second, which goes out the distance between separator and described AO reaction tanks bottom, is more than described the
One goes out the distance between separator and described AO reaction tanks bottom；The multi-layer biological reactor includes：It is arranged at described
Internal frame body in two accommodating cavity bodies, has the first prepsetting gap between the first side wall of the internal frame body and the baffle plate, described
First prepsetting gap is connected by the described second overfall for going out separator with the AO reaction tanks, the bottom of the internal frame body
Portion is detachably connected with an inside casing bottom, have between the bottom at the inside casing bottom and the bottom of the outer frame body second it is default between
Gap, the second sidewall of the internal frame body and the second sidewall of the outer frame body fit, in the internal frame body from bottom to up successively
Provided with aerobic reaction layer and oxygen conversion zone and top soil, and aerobic reaction layer respectively with the outer frame body and described
And oxygen conversion zone is connected, the top soil is connected with described and oxygen conversion zone, the first side wall of the outer frame body and
The second sidewall of the outer frame body be the outer frame body two opposite side walls, and the outer frame body the first side wall where plane with
Plane is parallel with plane where the baffle plate where the second sidewall of the outer frame body, the first side wall of the internal frame body and institute
The second sidewall for stating internal frame body is the two opposite side walls of the internal frame body；In the AO reaction tanks and in second prepsetting gap
Multiple aeration structures are equipped with, the multiple aeration structure is connected with the oxygen supply equipment；Wherein, it is arranged at the AO anti-
Multiple aeration structures in Ying Chi are respectively positioned on the AO reaction tanks bottom.
2. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that the oxygen supply equipment includes：
Fixed support, solar components, oxygen increasing pump and tracheae；Wherein, the solar components are arranged on the fixed support, institute
State oxygen increasing pump to electrically connect with the solar components, one end of the tracheae is connected with the output end of the oxygen increasing pump, another
Hold and be connected with multiple aeration structures in the AO reaction tanks and in second prepsetting gap.
3. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that the inside casing bottom is provided with more
Individual first hole, the aerobic reaction layer is connected by the multiple first hole with the outer frame body.
4. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that be additionally provided with the internal frame body
Intermediate layer laminate, the first support feet and the second support feet, the intermediate layer laminate are located at aerobic reaction layer and described and oxygen
Between conversion zone, first support feet is respectively positioned in the aerobic reaction layer with second support feet, and described first
One end of spike is connected with the intermediate layer laminate, and the other end is connected with the first side wall of the internal frame body, second support
One end of pin is connected with the intermediate layer laminate, and the other end is connected with the second sidewall of the internal frame body；Wherein, the intermediate layer
Laminate is provided with multiple second holes, and the aerobic reaction layer is connected with described and oxygen conversion zone by the multiple second hole
It is logical.
5. cesspool sewage end-o f-pipe -control device according to claim 4, it is characterised in that be additionally provided with the internal frame body
Layer of plants laminate, the 3rd support feet and the 4th support feet, the layer of plants laminate are located at described and oxygen conversion zone and the plant
Between grown layer, the 3rd support feet is respectively positioned in described and oxygen conversion zone with the 4th support feet, and described 3rd
One end of spike is connected with the layer of plants laminate, and the other end is connected with the first side wall of the internal frame body, the 4th support
One end of pin is connected with the layer of plants laminate, and the other end is connected with the second sidewall of the internal frame body；Wherein, the layer of plants
Laminate is provided with multiple 3rd holes, and described and oxygen conversion zone is connected with the top soil by the multiple 3rd hole
It is logical.
6. cesspool sewage end-o f-pipe -control device according to claim 5, it is characterised in that be additionally provided with the internal frame body
First middle part bearing bar, the top of first middle part bearing bar is abutted with the intermediate layer laminate, the other end and the inside casing
Bottom is abutted.
7. cesspool sewage end-o f-pipe -control device according to claim 6, it is characterised in that be additionally provided with the internal frame body
Second middle part bearing bar, the top of second middle part bearing bar is abutted with the layer of plants laminate, the other end and the centre
Plate is abutted layer by layer, and the axis of second middle part bearing bar is overlapped with the axis of first middle part bearing bar.
8. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that in second prepsetting gap
What is be spaced is provided with multiple support bases, and one end of the support base is abutted with the inside casing bottom, the other end and the housing
The bottom of body is abutted.
9. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that the aerobic reaction layer and institute
The density for stating the ball-type floating stuffing being equipped with simultaneous oxygen conversion zone in ball-type floating stuffing, and aerobic reaction layer is more than institute
State the density of the ball-type floating stuffing in simultaneous oxygen conversion zone.
10. cesspool sewage end-o f-pipe -control device according to claim 1, it is characterised in that in the top soil
Provided with boulder bed and metalling, the boulder bed is located at the bottom of the top soil, and the metalling is covered in the ovum
In rock layers.
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| CN201710349401.1A CN106946354B (en) | 2017-05-17 | 2017-05-17 | Septic tank sewage end treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349401.1A CN106946354B (en) | 2017-05-17 | 2017-05-17 | Septic tank sewage end treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445308A (en) * | 2017-10-10 | 2017-12-08 | 叶长兵 | A kind of novel artificial wet field facilities for treating sewage of the micro- stifled self-healing of medium |
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