CN106630170B - A kind of underground sewage percolating system handling low ratio of carbon to ammonium sanitary sewage - Google Patents
A kind of underground sewage percolating system handling low ratio of carbon to ammonium sanitary sewage Download PDFInfo
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- CN106630170B CN106630170B CN201710058738.7A CN201710058738A CN106630170B CN 106630170 B CN106630170 B CN 106630170B CN 201710058738 A CN201710058738 A CN 201710058738A CN 106630170 B CN106630170 B CN 106630170B
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- 239000010865 sewage Substances 0.000 title claims abstract description 86
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 230000004048 modification Effects 0.000 claims abstract description 46
- 238000012986 modification Methods 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 18
- 239000002689 soil Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 241000196324 Embryophyta Species 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 244000005700 microbiome Species 0.000 claims description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 8
- 241000568397 Lysinibacillus Species 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 5
- 229910052906 cristobalite Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910052682 stishovite Inorganic materials 0.000 claims description 5
- 229910052905 tridymite Inorganic materials 0.000 claims description 5
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 241000209504 Poaceae Species 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052622 kaolinite Inorganic materials 0.000 claims description 4
- 241000099288 Agrococcus sp. Species 0.000 claims description 3
- 241000195576 Bacillus subtilis group Species 0.000 claims description 3
- 241000589513 Burkholderia cepacia Species 0.000 claims description 3
- 241000589774 Pseudomonas sp. Species 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052627 muscovite Inorganic materials 0.000 claims description 3
- 241001134775 Lysinibacillus fusiformis Species 0.000 claims description 2
- 238000007605 air drying Methods 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052863 mullite Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 241000193830 Bacillus <bacterium> Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000000813 microbial effect Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 29
- 229910052757 nitrogen Inorganic materials 0.000 description 15
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 12
- 229910052698 phosphorus Inorganic materials 0.000 description 12
- 239000011574 phosphorus Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 4
- 241000589565 Flavobacterium Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 241000194103 Bacillus pumilus Species 0.000 description 2
- 241000193386 Lysinibacillus sphaericus Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000093895 Acidovorax sp. Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 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
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 241000385540 bacterium 10 Species 0.000 description 1
- 241000933979 bacterium 14 Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011800 void material Substances 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
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to purifying domestic sewage technical fields, and in particular to a kind of underground sewage percolating system for handling low ratio of carbon to ammonium sanitary sewage.Technical scheme is as follows: including shell, plant, modification biological hypothallus a, gravel layer a, modification biological hypothallus b, gravel layer b, water feed apparatus and discharging device；The plant, modification biological hypothallus a, gravel layer a, modification biological hypothallus b and gravel layer b are disposed in the housing from top to down, and the water feed apparatus is arranged in the gravel layer a, and the discharging device is arranged in the gravel layer b；Cylinder apopore is arranged in the bottom of the shell, and the discharging device is connected with the cylinder apopore.The underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage provided by the invention, by modification biological matrix and microbial immobilized reinforcing, various pollutants removal efficiency is high, while guaranteeing that underground sewage percolating system is run steadily in the long term.
Description
Technical field
The invention belongs to purifying domestic sewage technical fields, and in particular to a kind of sewage for handling low ratio of carbon to ammonium sanitary sewage
Subsurface wastewater infiltration system.
Background technique
With the rapid economic development in our country, people's living standard is gradually increased, the organized discharge amount of sanitary sewage is big
It is big to increase.Especially on remote suburban area, rural area, Scenic Spot Area and other places, due to people life style and infrastructure
The reasons such as construction, sanitary sewage are just directly discharged into environment without any processing, make water environment by different degrees of pollution, this
The health not only persecuted living environment, threaten peasant, also affects the safety of drinking water.Therefore, it is badly in need of reinforcing to life
The processing of sewage living, especially low ratio of carbon to ammonium sanitary sewage (C/N=5:1~11:1), improve people's living environment, so that it is guaranteed that
The safety of drinking water and the health of the people.
Underground sewage percolating system can make full use of local natural environment, the processing local life of adaptation to local conditions
Sewage has the advantages that removal effect is good, with low investment, low energy consumption, does not generate stink, has no effect on ground landscape, and management is simple,
Engineering is simple, and climate influences small.But there is the problems such as easily blocking, nitrogen removal rate is low, Ke Yitong in underground sewage percolating system
Cross be modified its bio-matrix improve there are the problem of, while improving to the treatment effeciency of low ratio of carbon to ammonium sanitary sewage.
Filling substrate used in underground sewage percolating system is generally soil, sand, clinker etc. at present.Filling substrate used is answered
With preferable crumb structure and stability, it is made to obtain infiltration rate and Wicking action intensity appropriate；Improve carrier
Specific surface area and the permeability for improving system, provide good carrier and growing environment for microorganism, to improve system processing
Efficiency and avoid system jams.
Summary of the invention
The present invention provides a kind of underground sewage percolating system for handling low ratio of carbon to ammonium sanitary sewage, passes through modification biological matrix
It is high for the various pollutants removal efficiency in low ratio of carbon to ammonium sanitary sewage with microbial immobilized reinforcing, while guaranteeing sewage
Subsurface wastewater infiltration system is run steadily in the long term.
Technical scheme is as follows:
A kind of underground sewage percolating system handling low ratio of carbon to ammonium sanitary sewage, including shell, plant, modification biological matrix
Layer a, gravel layer a, modification biological hypothallus b, gravel layer b, water feed apparatus and discharging device；The plant, modification biological matrix
Layer a, gravel layer a, modification biological hypothallus b and gravel layer b are disposed in the housing from top to down, the water feed apparatus setting
In the gravel layer a, the discharging device is arranged in the gravel layer b；Cylinder apopore is arranged in the bottom of the shell,
The discharging device is connected with the cylinder apopore.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment are that the shell is high
For 120-200cm, diameter 10-40cm.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment are the water inlet dress
It sets including water inlet pipe and cross water distributor a, links together in the middle part of the water inlet pipe and cross water distributor a；Described ten
Four nozzles of font water distributor a are closed state, open up apopore, the apopore at the top of the cross water distributor a
Aperture is 3mm.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment is the plant species
It is implanted in the modification biological hypothallus a, the plant is gramineae plant kitten grass.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment are, described modified raw
Object hypothallus a is located at the 0-60cm from top to down of the shell, the modification biological hypothallus b be located at the shell from upper
And at lower 66-170cm；The modification biological hypothallus a and modification biological hypothallus b is by soil, sial system porous material, discarded
Steel cuttings and high-efficient denitrification and dephosphorization bacterium are uniformly mixed in mass ratio to be formulated, and mass ratio is as follows: soil 70-85%, sial system
Porous material 4-8% discards steel cuttings 8-15%, high-efficient denitrification and dephosphorization bacterium 10-18%.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment is that the soil is
Soddy soil removes root system of plant, gravel, sieves with 100 mesh sieve after grinding obtained through natural air drying.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment is the sial system
Its mineral phase composition of porous material includes quartz, mullite and rutile；Its chemical component is SiO2、Al2O3、Fe2O3、K2O and
Impurity, SiO2Account for 56.78wt%, Al2O3Account for 37.11wt%, K2O accounts for 2.78wt%, Fe2O31.58wt% is accounted for, impurity accounts for
1.75wt%；Its duct size is 30~1000 μm, and porosity is 30~90%, partial size 5-10mm；The sial system is porous
Material is synthesized by two kinds of natural clay CN-01 with CN-02；Quartz content accounts for 15.4% in the CN-01, and potassium feldspar accounts for 1.3%,
Muscovite accounts for 28.1%, and kaolinite accounts for 55.2%；Quartz content accounts for 10.4% in the CN-02, and potassium feldspar accounts for 0.6%, white clouds
Mother accounts for 16.9%, and kaolinite accounts for 72.1%；The CN-01 and CN-02 grain diameter are below 200 mesh；SiO in the CN-012
Account for 56.18wt%, Al2O326.80wt% is accounted for, bright alkali accounts for 8.70wt%, K2O accounts for 3.39wt%, Fe2O3Account for 2.63wt%, impurity
Account for 0.3wt%；SiO in the CN-022Account for 52.42wt%, Al2O331.98wt% is accounted for, bright alkali accounts for 10.90wt%, Fe2O3It accounts for
1.36wt%, K2O accounts for 2.04wt%, and impurity accounts for 1.3wt%.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment are, described efficiently de-
Nitrogen includes Acidovorax sp., Lysinibacillus fusiformis, Burkholderia cepacia except phosphobacteria
group、Lysinibacillus sphaericus group、Bacillus pumilus group、Bacillus
Subtilis group, Agrococcus sp., Pseudomonas sp. (i.e. pseudomonas) and/or
Flavobacterium (i.e. Flavobacterium) tames to be formed low temperature resistant and adapted to low through low temperature and low ratio of carbon to ammonium for denitrification microorganism
The efficient denitrification microorganism of carbon-nitrogen ratio sanitary sewage.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment is the gravel layer a
It is made of with gravel layer b partial size for 10-50mm gravel, with a thickness of 10-16cm.
The underground sewage percolating system of the processing low ratio of carbon to ammonium sanitary sewage, preferred embodiment are the water outlet dress
Be set to cross water distributor b, three nozzles of the cross water distributor b are closed state, an open nozzle with it is described
Cylinder apopore is connected；The bottom of the cross water distributor b opens up inlet opening, and the inlet opening aperture is 3mm.
It is 150-750mg/L that the pollutant index of the low ratio of carbon to ammonium sanitary sewage, which is COD content, and ammonia-nitrogen content is
30-300mg/L, total nitrogen content 40-350mg/L, phosphorus content 5-13mg/L.
The invention has the benefit that
1, microbial immobilization technology can make microorganism in sial system porous material structural void in the present invention
Growth, to be fixed.Microorganism after immobilization can preferably play sustaining degradation function, improve underground sewage percolating
The treatment effect of system；Sial system porous material shields to microorganism simultaneously, can be avoided the loss of reaction process, increases
Add stability, simplifies process flow, while can also long-term batch operation.
2, the present invention passes through sial system porous material, discarded steel cuttings and the modified underground sewage percolating of high-efficient denitrification and dephosphorization bacterium
The bio-matrix of system can be improved the permeability of underground sewage percolating system, and can provide for high-efficient denitrification and dephosphorization bacterium
Adhere to carrier, reinforce its immobilization effect, to promote the absorption to nitrate nitrogen, the removal effect of enhanced sewage total nitrogen, and has
Effect improves the easy blockage problem of underground sewage percolating system, prolongs the service life；It can well be transported in northern cold winter simultaneously
Row.
3, the water outlet of the underground sewage percolating system meets " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard in: COD content is 20-50mg/L, ammonia-nitrogen content 1-8mg/L, total nitrogen content 8-
15mg/L, phosphorus content 0-0.5mg/L.
Detailed description of the invention
Fig. 1 is the underground sewage percolating system structure diagram for handling low ratio of carbon to ammonium sanitary sewage；
Fig. 2 is water feed apparatus schematic diagram；
Fig. 3 is discharging device schematic diagram.
Specific embodiment
Embodiment 1
As shown in Figures 1 to 3, a kind of underground sewage percolating system handling low ratio of carbon to ammonium sanitary sewage, including shell 1, plant
Object 2, modification biological hypothallus a3, gravel layer a4, modification biological hypothallus b5, gravel layer b6, water feed apparatus and discharging device；Institute
It states plant 2, modification biological hypothallus a3, gravel layer a4, modification biological hypothallus b5 and gravel layer b6 and institute is set from top to down
It states in shell 1；Cylinder apopore 7 is arranged in the bottom of the shell 1.
Shell 1 a height of 180cm, diameter 30cm.The plant 2 is gramineae plant kitten grass, is planted in described change
In property bio-matrix layer a3.Modification biological hypothallus a3 is located at the 0-55cm of shell 1, and gravel layer a4 is located at the 55- of shell 1
65cm, modification biological hypothallus b5 are located at the 65-168cm of shell 1, and gravel layer b6 is located at the 168-180cm of shell 1.
Modification biological hypothallus a3 and modification biological hypothallus b5 by soddy soil, sial system porous material, discarded steel cuttings and
High-efficient denitrification and dephosphorization bacterium is uniformly mixed is formulated in mass ratio, and mass ratio is as follows: soddy soil 70%, sial system porous material
7%, discard steel cuttings 10%, high-efficient denitrification and dephosphorization bacterium 13%；Wherein the partial size of sial system porous material is 5-10mm；It is wherein high
It is matched in effect denitrogenation dephosphorizing bacterium are as follows: Acidovorax7%, Lysinibacillus fusiformis4%, other bacteriums
2%；Other bacteriums include Burkholderia cepacia group, Lysinibacillus sphaericus group,
Bacillus pumilus group、Bacillus subtilis group、Agrococcus sp.、Pseudomonas sp.
And/or Flavobacterium, the mass ratio of these bacteriums are identical.
Gravel layer a4 and gravel layer b6 is that 10-15mm gravel forms by partial size.The water feed apparatus is arranged in the gravel
In layer a4, the discharging device is arranged in the gravel layer b6；The water feed apparatus includes water inlet pipe 8 and cross water distributor
It links together in the middle part of a9, the water inlet pipe 8 and cross water distributor a9；Four nozzles of the cross water distributor a9 are
Closed state, the bottom of the cross water distributor a9 open up apopore 10, and 10 aperture of apopore is 3mm；The water outlet
Device is cross water distributor b11, and three nozzles of the cross water distributor b11 are closed state, an open nozzle
It is connected with the cylinder apopore 7；The bottom of the cross water distributor b11 opens up inlet opening 12,12 hole of inlet opening
Diameter is 3mm.
City domestic sewage pollutant index are as follows: COD content is 450mg/L, ammonia-nitrogen content 183mg/L, total nitrogen content
For 200mg/L, phosphorus content 11mg/L.
Low ratio of carbon to ammonium sanitary sewage enters in underground sewage percolating system through the water feed apparatus, and a portion is in hair
It is moved upwards under thin power effect, by the processing of modification biological hypothallus a3, provides water source for gramineae plant kitten grass；It is another
Part enters in modification biological hypothallus b5 under the effect of gravity to be handled, and treated, and water is discharged by discharging device.
COD content in the water outlet of underground sewage percolating system is 35mg/L, ammonia-nitrogen content 2mg/L, and total nitrogen content is
9mg/L, phosphorus content 0.5mg/L.
Embodiment 2
Difference from Example 1 is that modification biological hypothallus a3 is located at the 0-52cm of shell 1, gravel layer a4
At the 52-70cm of shell 1, modification biological hypothallus b5 is located at the 70-169cm of shell 1, gravel layer b6 is located at shell 1
At 169-180cm.Modification biological hypothallus a3 and modification biological hypothallus b5 mass ratio are as follows: soddy soil 70%, sial system are more
Porous materials 5% discard steel cuttings 11%, high-efficient denitrification and dephosphorization bacterium 14%；It is matched in high-efficient denitrification and dephosphorization bacterium are as follows:
Acidovorax8%, Lysinibacillus fusiformis5%, other bacteriums 1%.
Winter domestic sewage in rural areas its COD content in city is 600mg/L, ammonia-nitrogen content 190mg/L, and total nitrogen content is
212mg/L, phosphorus content 14mg/L.
COD content in the water outlet of underground sewage percolating system is 37mg/L, ammonia-nitrogen content 5mg/L, and total nitrogen content is
13mg/L, phosphorus content 0.4mg/L.
Embodiment 3
Difference from Example 1 is that modification biological hypothallus a3 is located at the 0-50cm of shell 1, gravel layer a4
At the 50-66cm of shell 1, modification biological hypothallus b5 is located at the 66-165cm of shell 1, gravel layer b6 is located at shell 1
At 165-180cm.Modification biological hypothallus a3 and modification biological hypothallus b5 mass ratio are as follows: soddy soil 72%, sial system are more
Porous materials 4% discard steel cuttings 8%, high-efficient denitrification and dephosphorization bacterium 16%；It is matched in high-efficient denitrification and dephosphorization bacterium are as follows:
Acidovorax9%, Lysinibacillus fusiformis6%, other bacteriums 1%.
Its COD content of north of china in winter domestic sewage in rural areas is 150-400mg/L, ammonia-nitrogen content 30-50mg/L, and total nitrogen contains
Amount is 30-50mg/L, phosphorus content 5-11mg/L.
COD content in the water outlet of underground sewage percolating system is 30-50mg/L, ammonia-nitrogen content 1-4mg/L, total nitrogen content
For 5-13mg/L, phosphorus content 0-0.3mg/L；After operation 60 days, 85% or more, ammonia nitrogen removal frank exists the removal rate of COD
The removal rate of 95% or more, TN are in 85~96%, TP removal rate 99.9% or more.
Embodiment 4
Difference from Example 1 is that modification biological hypothallus a3 is located at the 0-60cm of shell 1, gravel layer a4
At the 60-75cm of shell 1, modification biological hypothallus b5 is located at the 75-164cm of shell 1, gravel layer b6 is located at shell 1
At 164-180cm.Modification biological hypothallus a3 and modification biological hypothallus b5 mass ratio are as follows: soddy soil 75%, sial system are more
Porous materials 4% discard steel cuttings 9%, high-efficient denitrification and dephosphorization bacterium 12%；It is matched in high-efficient denitrification and dephosphorization bacterium are as follows:
Acidovorax7%, Lysinibacillus fusiformis4%, other bacteriums 1%.
Town domestic sewage includes toilet hygiene waste water and kitchen is washed the dishes waste water, COD content is 350mg/L, ammonia-nitrogen content
For 80mg/L, total nitrogen content 97mg/L, phosphorus content 15mg/L.
COD content in the water outlet of underground sewage percolating system is 24mg/L, ammonia-nitrogen content 3.5mg/L, and total nitrogen content is
12mg/L, phosphorus are not detected.
Embodiment 4
Difference from Example 1 is that modification biological hypothallus a3 is located at the 0-62cm of shell 1, gravel layer a4
At the 62-74cm of shell 1, modification biological hypothallus b5 is located at the 74-166cm of shell 1, gravel layer b6 is located at shell 1
At 166-180cm.Modification biological hypothallus a3 and modification biological hypothallus b5 mass ratio are as follows: soddy soil 78%, sial system are more
Porous materials 4% discard steel cuttings 8%, high-efficient denitrification and dephosphorization bacterium 10%；It is matched in high-efficient denitrification and dephosphorization bacterium are as follows:
Acidovorax4%, Lysinibacillus fusiformis4%, other bacteriums 2%.
Cities and towns winter life dirt COD content is 390mg/L, ammonia-nitrogen content 108mg/L, total nitrogen content 120mg/L, phosphorus
Content 16mg/L.
COD content in the water outlet of underground sewage percolating system is 30mg/L, ammonia-nitrogen content 4mg/L, and total nitrogen content is
13mg/L, phosphorus content 0.1mg/L.
Claims (8)
1. a kind of underground sewage percolating system for handling low ratio of carbon to ammonium sanitary sewage, which is characterized in that including shell, plant, change
Property bio-matrix layer a, gravel layer a, modification biological hypothallus b, gravel layer b, water feed apparatus and discharging device；The plant changes
Property bio-matrix layer a, gravel layer a, modification biological hypothallus b and gravel layer b are disposed in the housing from top to down, it is described into
Water installations are arranged in the gravel layer a, and the discharging device is arranged in the gravel layer b；The bottom of the shell is arranged
Cylinder apopore, the discharging device are connected with the cylinder apopore；The modification biological hypothallus a is located at the shell
0-60cm from top to down at, the modification biological hypothallus b is located at the 66-170cm from top to down of the shell；It is described to change
Property bio-matrix layer a and modification biological hypothallus b it is thin by soil, sial system porous material, discarded steel cuttings and high-efficient denitrification and dephosphorization
Bacterium is uniformly mixed is formulated in mass ratio, and mass ratio is as follows: soil 70-85%, sial system porous material 4-8%, discards steel cuttings
8-15%, high-efficient denitrification and dephosphorization bacterium 10-18%, total amount 100%；Its mineral phase composition of sial system porous material includes
Quartz, mullite and rutile；Its chemical component is SiO2、Al2O3、Fe2O3、K2O and impurity, SiO256.78 wt% are accounted for,
Al2O3Account for 37.11 wt%, K2O accounts for 2.78 wt%, Fe2O31.58 wt% are accounted for, impurity accounts for 1.75 wt%；Its duct size be 30 ~
1000 μm, porosity is 30 ~ 90%, partial size 5-10mm；Sial system porous material by two kinds of natural clay CN-01 with
CN-02 synthesis；Quartz content accounts for 15.4% in the CN-01, and potassium feldspar accounts for 1.3%, and muscovite accounts for 28.1%, and kaolinite accounts for
55.2%；Quartz content accounts for 10.4% in the CN-02, and potassium feldspar accounts for 0.6%, and muscovite accounts for 16.9%, and kaolinite accounts for
72.1%；The CN-01 and CN-02 grain diameter are below 200 mesh；SiO in the CN-012Account for 56.18 wt%, Al2O3It accounts for
26.80wt%, bright alkali account for 8.70 wt%, K2O accounts for 3.39 wt%, Fe2O32.63 wt% are accounted for, impurity accounts for 0.3 wt%；The CN-02
Middle SiO2Account for 52.42 wt%, Al2O331.98 wt% are accounted for, bright alkali accounts for 10.90 wt%, Fe2O3Account for 1.36 wt%, K2O accounts for 2.04
Wt%, impurity account for 1.3 wt%.
2. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
State a height of 120-200cm of shell, diameter 10-40cm.
3. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
Stating water feed apparatus includes water inlet pipe and cross water distributor a, is connected to one in the middle part of the water inlet pipe and cross water distributor a
It rises；Four nozzles of the cross water distributor a are closed state, open up apopore at the top of the cross water distributor a, institute
Stating apopore aperture is 3mm.
4. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
Planting is stated in the modification biological hypothallus a, the plant is gramineae plant kitten grass.
5. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
Stating soil is soddy soil, through natural air drying, removes root system of plant, gravel, sieves with 100 mesh sieve after grinding obtained.
6. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
Stating high-efficient denitrification and dephosphorization bacterium includesAcidovorax sp.、 Lysinibacillus fusiformis、Burkholderia cepacia group、Lysinibacillus sphaericusgroup、Bacillus pumilusgroup、Bacillus subtilisgroup、Agrococcus sp.、Pseudomonas sp.And/orFlavobacterium, it is denitrification microorganism
It tames to form efficient denitrification microorganism that is low temperature resistant and adapting to low ratio of carbon to ammonium sanitary sewage through low temperature and low ratio of carbon to ammonium.
7. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
It is that 10-50mm gravel forms that gravel layer a and gravel layer b, which are stated, by partial size, with a thickness of 10-16cm.
8. the underground sewage percolating system of processing low ratio of carbon to ammonium sanitary sewage according to claim 1, which is characterized in that institute
Stating discharging device is cross water distributor b, and three nozzles of the cross water distributor b are closed state, an open pipe
Mouth is connected with the cylinder apopore；The bottom of the cross water distributor b opens up inlet opening, and the inlet opening aperture is
3mm。
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