CN209411899U - A kind of device removing low temperature underground water middle and high concentration nitrate - Google Patents
A kind of device removing low temperature underground water middle and high concentration nitrate Download PDFInfo
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Abstract
A kind of device removing low temperature underground water middle and high concentration nitrate is related to a kind of water treatment field more particularly to a kind of device for removing nitrate in groundwater.It is problem of the existing apparatus to be solved for the nitrate removal effect difference of low temperature underground water.Device includes inlet tank, microbial inoculant pond, intake pump, main body reactor, air pump, back purge system, elevator pump, peristaltic pump, secondary settling tank and water tank.Bottom in main body reactor is equipped with aerator；Middle part in main body reactor is equipped with photocatalysis apparatus, inlet tank is connect by intake pump with the reactor water inlet of main body reactor, pipeline connection between microbial inoculant pond and inlet tank and intake pump, the reactor water outlet of main body reactor is connected by peristaltic pump with the water inlet of secondary settling tank, and the water outlet of secondary settling tank is connected by pipeline with water tank.The utility model is for handling underground water.
Description
Technical field
The utility model relates to a kind of water treatment field more particularly to a kind of devices for removing nitrate in groundwater.
Background technique
In recent decades, with the fast development of China's economic society, groundwater resources development utilization is in increase rapidly
Situation, but due to modern agriculture progress faster and some unreasonable human activities (such as: agrochemical usage amount increases), make
Obtaining underground water, generally the pollution of area source by agriculture nitrogen, nitrate pollution are got worse.According to China's Drinking Water
10mg/L is not to be exceeded in sanitary standard, the nitrate in drinking water.On the one hand Nitrate In Drinking Water too high levels are easy to cause
On the other hand methemoglobinemia can form nitrosamine and nitrosyl ammonia under one's belt, have height carcinogenicity, it is also possible to cause
Monster and initiation mutagenesis, threaten human health.
Traditional biological denitrification technology is because of its high treating effect, operating cost is low, simple and convenient operation and maintenance, and is generally recognized
For one of the prefered method for being removal Nitrate In Drinking Water nitrogen.Since the water temperature of usual underground water is low (6~10 DEG C), and in water
Organic matter exists usually in the form of the humic acid of difficult for biological degradation, therefore applies traditional biological denitrification technical treatment underground water
When, it is commonly encountered low temperature and inhibits the growth of denitrifying bacteria and the problem of activity.And then influence nitrate removal effect.
Utility model content
The utility model is problem of the existing apparatus to be solved for the nitrate removal effect difference of low temperature underground water, is provided
A kind of device removing low temperature underground water middle and high concentration nitrate.
The utility model removal low temperature underground water middle and high concentration nitrate device include inlet tank, microbial inoculant pond,
Intake pump, main body reactor, air pump, back purge system, elevator pump, peristaltic pump, secondary settling tank and water tank,
The side lower sidewall of main body reactor is equipped with reactor water inlet, and the other side lower sidewall of main body reactor is set
There is reactor water outlet, the bottom in main body reactor is equipped with aerator, and air pump passes through main body reactor by pipeline
Bottom is connected with aerator, and the junction of air pump and main body reactor seals；
Middle part in main body reactor is equipped with photocatalysis apparatus, the photocatalysis apparatus include left support frame, right support frame,
Plate film assembly, photocatalytic coating glass and ultraviolet lamp tube group are vertically arranged with flat between left support frame and right support frame
Plate membrane module, photocatalytic coating glass and ultraviolet lamp tube group, wherein plate film assembly is vertical with left support frame and right support frame,
Two panels photocatalytic coating glass is respectively arranged at the two sides of plate film assembly, and parallel with plate film assembly, two ultraviolet lamps
Pipe group is respectively arranged at the outside of two panels photocatalytic coating glass, and parallel with photocatalytic coating glass；
Plate film assembly in the photocatalysis apparatus is connected by the water outlet of backwash tube and back purge system, recoil
It washes and is provided with elevator pump on pipe；
Inlet tank is connect by intake pump with the reactor water inlet of main body reactor, microbial inoculant pond and inlet tank and
Pipeline connection between intake pump, the reactor water outlet of main body reactor are connected by peristaltic pump with the water inlet of secondary settling tank,
The water outlet of secondary settling tank is connected by pipeline with water tank；
The exit of inlet tank is equipped with inlet valve, and the exit in microbial inoculant pond is equipped with inoculation pond valve.
Further, the aerator is aeration tube.
Further, the photocatalytic coating glass is that photochemical catalyst is plated in glass surface using film plating process, is made
For at photocatalytic coating glass.Specific film plating process is referring to " glass-base nanometer composite Ti O2The preparation and sterilizing of photocatalysis membrana
Performance study " (Wang Xun Wuhan University of Technology, 2008.).The catalyst is TiO2、ZnO、CdS、WO3、SnO2Or BiVO4。
Further, the coating of photocatalytic coating glass is provided only on close to the side of ultraviolet lamp tube group, it is therefore an objective to strong
Photocatalysis reaction effect；Photocatalytic coating, mesh are not provided with close to plate film assembly side on photocatalytic coating glass
Be to prevent photochemical catalytic oxidation from having an impact to microorganism on film.
Further, the pipeline between air pump and aerator is equipped with valve, reactor water outlet and peristaltic pump it
Between pipeline be equipped with valve, pipeline between back purge system and elevator pump is equipped with valve, between secondary settling tank and water tank
Pipeline be equipped with valve.
Further, reactor water inlet is equipped with first flowmeter, and backwash tube is equipped with second flowmeter.
The working principle of utility model device:
It is passed through denitrifying bacteria in main body reactor first, is by low temperature denitrifying bacteria and the anti-nitre of low temperature facultative autotrophy
Change bacterium composition, is able to carry out denitrification removal nitrate.Opening air pump is aerated aerator, makes plate film assembly
Upper formation biomembrane, then carries out groundwater treatment.Underground water enters main body reactor by inlet tank, opens ultraviolet lamp, ultraviolet
Lamp can promote photochemical catalyst (photochemical catalyst is attached on photocatalytic coating glass) occur advanced oxidation reaction, generate O,
The free radicals such as HO, so that the humic acid material generation oxidation of difficult for biological degradation in underground water is formed small molecule easily biological-degradable has
Machine object improves the C/N ratio in water；NO in water3 -- N, organic C, iron ion and manganese ion are micro- to adhere on plate film assembly
Biology provides nutriment, and microorganism is promoted to carry out growth and denitrification；Advanced oxidation reaction also further obviates
The risk of nitrite is formed in treatment process.The effect of peristaltic pump is to prevent in water microorganism concn excessively high and block pipeline,
Therefore it needs to open peristaltic pump when there is the phenomenon that line clogging.
Underground water by main body reactor for treatment flows into secondary settling tank, carries out mud-water separation, later water going out through secondary settling tank
The mouth of a river enters water tank.
It after device runs a period of time, needs to clean plate film assembly, opens elevator pump and recoil at this time
Cleaning device carries out periodic cleaning to plate film assembly.When cleaning plate film assembly, inlet valve is closed, arresting stop
Operation.
Utility model device is aspirated by intake pump and realizes Inlet and outlet water.
The utility model has the beneficial effects that
1, photocatalysis apparatus is provided in the main body reactor of utility model device, plate film assembly therein is for micro-
The attachment of biology, outside setting photocatalytic coating glass and ultraviolet lamp tube group, ultraviolet lamp can promote photocatalytic coating glass
Advanced oxidation reaction occurs for the photochemical catalyst on glass surface, makes the humic acid material of difficult for biological degradation in underground water that oxidation shape occur
At small molecule easily biological-degradable organic matter, the microorganism (denitrifying bacteria) to adhere on plate film assembly provides nutrients
Matter promotes microorganism to carry out growth and denitrification.
During handling underground water using utility model device, ultraviolet light-catalyst generation advanced oxidation reaction
The problem of eliminating the risk for forming nitrite in treatment process, therefore nitrite accumulation be not present.
2, microbial inoculant pond is arranged in the utility model, convenient for being passed through microorganism into main body reactor.It is reacted in main body
Aerator is set in device, is attached on plate film assembly convenient for microorganism and forms biomembrane.
3, back purge system is arranged in the utility model, convenient for carrying out periodic cleaning to plate film assembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for removing the device of low temperature underground water middle and high concentration nitrate；
Fig. 2 is the top view of photocatalysis apparatus in utility model device main body reactor.
Specific embodiment
Technical solutions of the utility model are not limited to that specific embodiments lis below, and further include each specific embodiment
Between any combination.
The following specific embodiments of measuring method in to(for) content of nitrite goes out with reference to by China Environmental Science
The phenol disulphonic acid spectrophotometry and N- (1- naphthalene)-ethylenediamine in " water and effluent monitoring analysis method (fourth edition) " that version society publishes
Photometry.
Specific embodiment 1: illustrating that present embodiment, present embodiment remove in low temperature underground water in conjunction with Fig. 1 and Fig. 2
The device of high concentration nitrate includes inlet tank 1, microbial inoculant pond 31, intake pump 2, main body reactor 7, air pump 5, recoil
Cleaning device 8, elevator pump 9, peristaltic pump 20, secondary settling tank 16 and water tank 17,
The side lower sidewall of main body reactor 7 is equipped with reactor water inlet 3, under the other side side wall of main body reactor 7
Portion is equipped with reactor water outlet 15, and the bottom in main body reactor 7 is equipped with aerator 14, and air pump 5 passes through master by pipeline
The bottom of reactor according 7 is connected with aerator 14, and the junction of air pump 5 and main body reactor 7 seals；
Middle part in main body reactor 7 is equipped with photocatalysis apparatus 6, and the photocatalysis apparatus 6 includes left support frame 62, right branch
Support 63, plate film assembly 61, photocatalytic coating glass 10 and ultraviolet lamp tube group 11, in left support frame 62 and right support frame 63
Between be vertically arranged with plate film assembly 61, photocatalytic coating glass 10 and ultraviolet lamp tube group 11, wherein plate film assembly 61
Vertical with left support frame 62 and right support frame 63, two panels photocatalytic coating glass 10 is respectively arranged at the two of plate film assembly 61
Side, and it is parallel with plate film assembly 61, two ultraviolet lamp tube groups 11 are respectively arranged at the outer of two panels photocatalytic coating glass 10
Side, and it is parallel with photocatalytic coating glass 10；
Plate film assembly 61 in the photocatalysis apparatus 6 is connected by the water outlet of backwash tube 12 and back purge system 8
It connects, elevator pump 9 is provided on backwash tube 12；
Inlet tank 1 is connect by intake pump 2 with the reactor water inlet 3 of main body reactor 7, microbial inoculant pond 31 and into
Pipeline connection between water tank 1 and intake pump 2, the reactor water outlet 15 of main body reactor 7 pass through peristaltic pump 20 and secondary settling tank
16 water inlet is connected, and the water outlet of secondary settling tank 16 is connected by pipeline with water tank 17；
The exit of inlet tank 1 is equipped with inlet valve 4, and the exit in microbial inoculant pond 31 is equipped with inoculation pond valve 13.
Preferably, the aerator 14 is aeration tube.
Further, the photocatalytic coating glass 10 is that photochemical catalyst is plated in glass surface using film plating process,
It is prepared into photocatalytic coating glass.Specific film plating process is referring to " glass-base nanometer composite Ti O2The preparation of photocatalysis membrana with go out
Bacterium performance study " (Wang Xun Wuhan University of Technology, 2008.).The catalyst is TiO2、ZnO、CdS、WO3、SnO2Or BiVO4。
Further, the coating of photocatalytic coating glass 10 is provided only on close to the side of ultraviolet lamp tube group 11, purpose
It is to strengthen light-catalyzed reaction effect；Photochemical catalyst is not provided with close to 61 side of plate film assembly on photocatalytic coating glass 10
Coating, it is therefore an objective to prevent photochemical catalytic oxidation from having an impact to microorganism on film.
Further, the pipeline between air pump 5 and aerator 14 is equipped with valve, reactor water outlet 15 and wriggling
Pipeline between pump 20 is equipped with valve, and pipeline between back purge system 8 and elevator pump 9 is equipped with valve, secondary settling tank 16 with
Pipeline between water tank 17 is equipped with valve.Valve is arranged to be convenient for carrying out open and close control to each section in device.
Further, first flowmeter 30 is equipped at reactor water inlet 3, backwash tube 12 is equipped with second flowmeter
32.Flowmeter is set convenient for being monitored to the water inlet in device, water flow.
The working principle of device:
The present apparatus is aspirated by intake pump and realizes Inlet and outlet water.
Denitrifying bacteria is passed through in main body reactor 7 first, opening air pump 5 is aerated aerator 14, makes
Biomembrane is formed on plate film assembly 61, then carries out groundwater treatment.Underground water enters main body reactor 7 by inlet tank 1,
Ultraviolet lamp is opened, ultraviolet lamp can promote photochemical catalyst (photochemical catalyst is attached on photocatalytic coating glass) that advanced oxidation occurs
Reaction generates the free radicals such as O, HO, makes the humic acid material of difficult for biological degradation in underground water that oxidation occur and forms small point
Sub- easily biological-degradable organic matter improves the C/N ratio in water；NO in water3 -- N, organic C, iron ion and manganese ion are plate membrane
The microorganism adhered on component provides nutriment, and microorganism is promoted to carry out growth and denitrification；Advanced oxidation reaction
Also the risk for forming nitrite in treatment process is further obviated, therefore the nitrate and humic in water removal can be removed simultaneously
Acid, and the not accumulation of nitrite.The effect of peristaltic pump is to prevent in water microorganism concn excessively high and block pipeline, therefore
It needs to open peristaltic pump when there is the phenomenon that line clogging.
Secondary settling tank 16 is flowed by the underground water that main body reactor 7 is handled, carries out mud-water separation, water is through secondary settling tank 16 later
Water outlet enter water tank 17.
It after device runs a period of time, needs to clean plate film assembly 61, opens elevator pump 9 and anti-at this time
Flusher 8 carries out periodic cleaning to plate film assembly 61.
Specific embodiment 2: the method for carrying out groundwater treatment using device described in specific embodiment one, including
Following steps:
One, it is put into denitrifying bacteria microbial inoculum into microbial inoculant pond 31, closes inlet valve 4, opens inoculation pond valve
13 and intake pump 2, denitrifying bacteria microbial inoculum is entered in main body reactor 7 by microbial inoculant pond 31, opens 5 He of air pump
Aerator 14, aeration 12~for 24 hours, make oxygen in water not less than 2mg/L；
Two, then stop aeration, 2~6h of quiescent setting, after through secondary settling tank 16 be discharged primary water；
Three, step 1 is repeated to step 2, until forming wadding body, and forms biomembrane on plate film assembly 61, it is described
Biomembrane with a thickness of 0.1~0.2mm；
Four, be then shut off inoculation pond valve 13, open inlet valve 4 and intake pump 2, the underground water in inlet tank 1 into
Under the castering action of water pump 2, main body reactor 7 is entered by reactor water inlet 3, opens air pump 5 and aerator 14,
Open ultraviolet lamp simultaneously, hydraulic detention time is 2~6h, the underground water of post-processing enter two by reactor water outlet 15 and sink
Pond 16, and it is expelled to water tank 17.
Further, the aerator 14 of 7 bottom of main body reactor uses intermittent aerating method, and oxygen in water is not less than
2mg/L。
Further, the preparation method of denitrifying bacteria microbial inoculum described in step 1 follows the steps below:
One, respectively by Pseudomonas extremaustralis Y39-6, Pseudomonas arsenicoxydans
Y24-2, Pseudomonas poae Y5-5, Pseudomonas koreensis Y5-11 and Psychrobacter
Cryohalolentis F5-6 is inoculated in solid medium respectively, in 8 DEG C of activation 36h；
Two, Pseudomonas extremaustralis Y39-6, Pseudomonas after activating
Arsenicoxydans Y24-2, Pseudomonas poae Y5-5, Pseudomonas koreensis Y5-11 and
Psychrobacter cryohalolentis F5-6, which is inoculated in respectively in fluid nutrient medium, carries out fermented and cultured, temperature 8
DEG C, culture Pseudomonas extremaustralis Y39-6, Pseudomonas into every milliliter of fermentation liquid
Arsenicoxydans Y24-2, Pseudomonas poae Y5-5, Pseudomonas koreensis Y5-11 and
The bacterium number of Psychrobacter cryohalolentis F5-6 is 1010It is a；
Three, by Pseudomonas extremaustralis Y39-6 fermentation liquid, Pseudomonas
Arsenicoxydans Y24-2 fermentation liquid, Pseudomonas poae Y5-5 fermentation liquid, Pseudomonas koreensis
Y5-11 fermentation liquid and Psychrobacter cryohalolentis F5-6 fermentation liquid are mixed for 1:1:1:1:1 according to volume ratio
It closes uniformly, that is, denitrifying bacteria microbial inoculum is made；
Further, in step 1 for cultivate Pseudomonas extremaustralis Y39-6 and
The solid culture based formulas of Pseudomonas koreensis Y5-11 are as follows: NaNO30.5g/L, MnSO40.05g/L,
(NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO40.7g/L, MgSO4·7H2O 0.04g/L,
NaCl 0.4g/L, agar 18g/L, pH value 7.2.
Further, in step 1 for cultivate Pseudomonas arsenicoxydans Y24-2 and
The solid culture based formulas of Psychrobacter cryohalolentis F5-6 are as follows: NaNO30.5g/L, MnSO4 0.05g/
L, (NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO40.7g/L, MgSO4·7H2O 0.04g/
L, NaCl 0.4g/L, C2H50.1~2.0mL/L of OH, agar 18g/L, pH value 7.2.
Further, for cultivating the solid culture based formulas of Pseudomonas poae Y5-5 in step 1 are as follows:
NaNO30.5g/L, MnSO40.05g/L, (NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO4
0.7g/L, MgSO4·7H2O 0.04g/L, NaCl 0.4g/L, 0.10~10.0mg/L of humic acid, agar 18g/L, pH value
7.2。
Further, in step 2 for ferment Pseudomonas extremaustralis Y39-6 and
The Liquid Culture based formulas of Pseudomonas koreensis Y5-11 are as follows: NaNO30.5g/L, MnSO40.05g/L,
(NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO40.7g/L, MgSO4·7H2O 0.04g/L,
NaCl 0.4g/L, pH value 7.2.
Further, in step 2 for ferment Pseudomonas arsenicoxydans Y24-2 and
The Liquid Culture based formulas of Psychrobacter cryohalolentis F5-6 are as follows: NaNO30.5g/L, MnSO4 0.05g/
L, (NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO40.7g/L, MgSO4·7H2O 0.04g/
L, NaCl 0.4g/L, C2H50.1~2.0mL/L of OH, pH value 7.2.
Further, the Liquid Culture based formulas in step 2 for the Pseudomonas poae Y5-5 that ferments are as follows:
NaNO30.5g/L, MnSO40.05g/L, (NH4)2Fe(SO4)2·6H2O 0.10g/L, CaCl20.05g/L, Na2HPO4
0.7g/L, MgSO4·7H2O 0.04g/L, NaCl 0.4g/L, 0.10~10.0mg/L of humic acid, pH value 7.2.
Wherein the Pseudomonas extremaustralis Y39-6 is deposited in Chinese microorganism strain preservation management
Committee's common micro-organisms center, preservation address are Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3s, and the deposit date is 2018
October 29, deposit number are CGMCC No.16652.Pseudomonas arsenicoxydans Y24-2 is deposited in China
Microbiological Culture Collection administration committee common micro-organisms center, preservation address are Yard 1, BeiChen xi Road, Chaoyang District, Beijing Cities 3
Number, deposit number is CGMCC No.16655, and the deposit date is on October 29th, 2018.Pseudomonas poae Y5-5 is protected
It ensconces China Committee for Culture Collection of Microorganisms's common micro-organisms center (CGMCC), preservation address is Chaoyang District, Beijing City
The institute 3 of North Star West Road 1, the deposit date is on October 29th, 2018, deposit number was CGMCC No.16654.
Pseudomonas koreensis Y5-11 is preserved in China Committee for Culture Collection of Microorganisms's common micro-organisms center,
Preservation address is Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3, and the deposit date is on October 29th, 2018, deposit number was
16651.It is common that Psychrobacter cryohalolentis F5-6 is preserved in China Committee for Culture Collection of Microorganisms
Microorganism center, preservation address are Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3s, the deposit date is on October 29th, 2018,
Deposit number is CGMCC No.16653.
The biomembrane of denitrifying bacteria microbial inoculum is secured on plate film assembly, denitrifying bacteria microbial inoculum is by the anti-nitre of low temperature
Change bacterium and low temperature facultative autotrophy denitrifying bacteria composition.Low temperature denitrifying bacteria Pseudomonas arsenicoxydans
Y24-2, Pseudomonas poae Y5-5 and Psychrobacter cryohalolentis F5-6 can use organic matter
Carry out denitrification removal nitrate (best C/N ratio is 0.5), Pseudomonas koreensis Y5-11 and Pseudomonas
Extremaustralis Y39-6 can carry out denitrification removal nitrate under conditions of no organic carbon source.By above-mentioned bacterial strains
Proportion combination is carried out, is conducive to strengthen removal effect of the bacterial strain to nitrate and the adaptability to environment, when organic in water inlet
When larger fluctuation occurs for object and nitrate concentration, good organic matter and nitrate removal effect are still ensured that.
For present embodiment using the underground water that is polluted by high concentration nitrate as water inlet, nitrate concentration is 50~100mg/
L is handled under conditions of 6~10 DEG C using this method, monitors the NO3-N and NO2-N in inflow and outflow daily
Concentration.In the 30d of operation, for this method to the removal rate of nitrate 80% or more, water outlet there are no nitrite accumulation.
Claims (5)
1. a kind of device for removing low temperature underground water middle and high concentration nitrate, it is characterised in that the device includes inlet tank (1), micro-
Bacterization pond (31), main body reactor (7), air pump (5), back purge system (8), elevator pump (9), is wriggled at intake pump (2)
(20), secondary settling tank (16) and water tank (17) are pumped,
The side lower sidewall of main body reactor (7) is equipped with reactor water inlet (3), the other side side wall of main body reactor (7)
Lower part is equipped with reactor water outlet (15), and the bottom in main body reactor (7) is equipped with aerator (14), and air pump (5) passes through
The bottom that pipeline passes through main body reactor (7) is connected with aerator (14), the connection of air pump (5) and main body reactor (7)
Place's sealing；
Middle part in main body reactor (7) is equipped with photocatalysis apparatus (6), the photocatalysis apparatus (6) include left support frame (62),
Right support frame (63), plate film assembly (61), photocatalytic coating glass (10) and ultraviolet lamp tube group (11), in left support frame
(62) plate film assembly (61), photocatalytic coating glass (10) and ultraviolet lamp tube are vertically arranged between right support frame (63)
Group (11), wherein plate film assembly (61) is vertical with left support frame (62) and right support frame (63), two panels photocatalytic coating glass
Glass (10) is respectively arranged at the two sides of plate film assembly (61), and parallel with plate film assembly (61), two ultraviolet lamp tube groups
(11) it is respectively arranged at the outside of two panels photocatalytic coating glass (10), and parallel with photocatalytic coating glass (10)；
Plate film assembly (61) in the photocatalysis apparatus (6) passes through the water outlet of backwash tube (12) and back purge system (8)
Mouth connects, and is provided with elevator pump (9) on backwash tube (12)；
Inlet tank (1) is connect by intake pump (2) with the reactor water inlet (3) of main body reactor (7), microbial inoculant pond
(31) pipeline between inlet tank (1) and intake pump (2) is connect, and the reactor water outlet (15) of main body reactor (7) passes through
Peristaltic pump (20) is connected with the water inlet of secondary settling tank (16), and the water outlet of secondary settling tank (16) passes through pipeline and water tank (17) phase
Even；
The exit of inlet tank (1) is equipped with inlet valve (4), and the exit of microbial inoculant pond (31) is equipped with inoculation pond valve
(13)。
2. a kind of device for removing low temperature underground water middle and high concentration nitrate according to claim 1, it is characterised in that institute
Stating aerator (14) is aeration tube.
3. a kind of device for removing low temperature underground water middle and high concentration nitrate according to claim 1 or 2, it is characterised in that
The coating of the photocatalytic coating glass (10) is provided only on close to the side of ultraviolet lamp tube group (11).
4. a kind of device for removing low temperature underground water middle and high concentration nitrate according to claim 3, it is characterised in that empty
Pipeline between air pump (5) and aerator (14) is equipped with valve, between reactor water outlet (15) and peristaltic pump (20)
Pipeline is equipped with valve, and the pipeline between back purge system (8) and elevator pump (9) is equipped with valve, secondary settling tank (16) and water outlet
Pipeline between case (17) is equipped with valve.
5. a kind of device for removing low temperature underground water middle and high concentration nitrate according to claim 4, it is characterised in that institute
It states and is equipped with first flowmeter (30) at reactor water inlet (3), backwash tube (12) is equipped with second flowmeter (32).
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| CN201920131654.6U CN209411899U (en) | 2019-01-25 | 2019-01-25 | A kind of device removing low temperature underground water middle and high concentration nitrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574259A (en) * | 2019-01-25 | 2019-04-05 | 黑龙江大学 | A kind of device and Groundwater Treatment Methodss removing low temperature underground water middle and high concentration nitrate |
| CN109722394A (en) * | 2019-01-25 | 2019-05-07 | 黑龙江大学 | One plant of arsenic oxidation pseudomonad and its application |
-
2019
- 2019-01-25 CN CN201920131654.6U patent/CN209411899U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574259A (en) * | 2019-01-25 | 2019-04-05 | 黑龙江大学 | A kind of device and Groundwater Treatment Methodss removing low temperature underground water middle and high concentration nitrate |
| CN109722394A (en) * | 2019-01-25 | 2019-05-07 | 黑龙江大学 | One plant of arsenic oxidation pseudomonad and its application |
| CN109722394B (en) * | 2019-01-25 | 2022-05-17 | 黑龙江大学 | Pseudomonas arsenic oxide strain and application thereof |
| CN109574259B (en) * | 2019-01-25 | 2024-04-16 | 黑龙江大学 | Device for removing high-concentration nitrate in low-temperature groundwater and groundwater treatment method |
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