CN110117096A - The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device and method of water body - Google Patents
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device and method of water body Download PDFInfo
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- CN110117096A CN110117096A CN201910328150.8A CN201910328150A CN110117096A CN 110117096 A CN110117096 A CN 110117096A CN 201910328150 A CN201910328150 A CN 201910328150A CN 110117096 A CN110117096 A CN 110117096A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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- 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
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- 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
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- Treatment Of Water By Oxidation Or Reduction (AREA)
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Abstract
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device and method of water body, are related to a kind of water body denitrification device.Nitrogen rejection facility is equipped with shell, oxidant manufacturing device, pond body and hydrogen supply equipment, and isolation plate washer is equipped in pond body, and plate washer is isolated by pond body and is separated into ammonium oxidation pond and nitrate-nitrogen reduction pond；The oxidant and sewage of oxidant manufacturing device manufacture enter ammonium oxidation pond by valve, sewage and oxidant inlet and the 1st water distributor, water body after the ammonia nitrogen removal of ammonium oxidation pond enters nitrate-nitrogen reduction pond by water inlet pipe and the 2nd water distributor, and purified water is discharged in the treated water outlet in nitrate-nitrogen reduction pond；The hydrogen that the hydrogen supply equipment generates is sent into nitrate-nitrogen reduction pond by hydrogen delivery tube and hydrogen gas pipe, the sludge that the bottom in ammonium oxidation pond and nitrate-nitrogen reduction pond is equipped with cone shape is collected and blowdown apparatus, and sludge is collected from the sludge of cone shape and sludge is discharged with blowdown apparatus.
Description
Technical field
The present invention relates to a kind of water body denitrification devices, ammonium oxidation and nitrate-nitrogen reduction integration more particularly, to water body
Nitrogen rejection facility and method.
Background technique
Currently, the method for removing water body total nitrogen both at home and abroad mainly has physical method, physical-chemical process and bioanalysis etc. a variety of.Object
Logos such as hyperfiltration, capacitive adsorption method and electroosmose process.Physical-chemical process such as ion-exchange, absorption method.Bioanalysis is main
It is the effect using nitrifier and denitrifying bacterium, by Ammonia Nitrification at nitrate nitrogen, nitrate nitrogen is reduced into nitrogen through the effect of anti-nitre bacterium again
Gas.Bioanalysis mainly has biological aerated filter and denitrification deep-bed filter.Although the method for removing total nitrogen is more, really transport
Substantially bioanalysis for production.Denitrification deep-bed filter or biological aerated filter must just be built using bioanalysis, and
It at runtime must also constantly supplementary carbon source and aeration.Denitrification deep-bed filter or biological aerated filter are the very big structures of volume
Object is built, not only occupied area is larger, invests more, and operating cost is higher, and therefore, it is low to be badly in need of a kind of operating cost, removing
Ammonia nitrogen, nitrate nitrogen and the high-efficient device and method of organic nitrogen.
Summary of the invention
It is an object of the invention in view of the deficienciess of the prior art, providing can be incited somebody to action a nitrogen rejection facility using partition
It is separated into ammonium oxidation pond and nitrate-nitrogen reduction pond, in ammonium oxidation pond using oxidant by ammonium oxidation at nitrogen and
Water or nitrate nitrogen and water, by oxidation operation at carbon dioxide and water；Nitrate nitrogen, nitrite nitrogen are reduced into reduction pond
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device and method of the water body of nitrogen and water.
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of the water body be equipped with shell, oxidant manufacturing device,
Pond body and hydrogen supply equipment, are equipped with isolation plate washer in pond body, and pond body is separated into ammonium oxidation pond and nitre by the isolation plate washer
State nitrogen restores pond；The oxidant and sewage of the oxidant manufacturing device manufacture pass through valve, sewage and oxidant inlet and the 1st
Water distributor enters ammonium oxidation pond, and the water body after the ammonia nitrogen removal of ammonium oxidation pond enters nitrate nitrogen by water inlet pipe and the 2nd water distributor
Pond is restored, purified water is discharged in the treated water outlet in nitrate-nitrogen reduction pond；The hydrogen that the hydrogen supply equipment generates is defeated by hydrogen
Pipe and hydrogen gas pipe is sent to be sent into nitrate-nitrogen reduction pond, the bottom in ammonium oxidation pond and nitrate-nitrogen reduction pond is equipped with cone shape
Sludge is collected and blowdown apparatus, and sludge is collected from the sludge of cone shape and sludge is discharged with blowdown apparatus.
The catalyst layer for improving hydrogen reduction nitrate nitrogen rate is also equipped in the nitrate-nitrogen reduction pond；The thickness of catalyst layer
Degree is 1000~3000mm；The installation site of catalyst layer is located above hydrogen gas pipe at 500~1000mm, uses lower supporting plate
Catalyst layer is fixed with upper backup pad.
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of the water body are cylindrical body, cuboid or square
One kind, shell are formed using steel plate, aluminium sheet, copper sheet, titanium plate, PVC plastic, PE plastics, glass reinforced plastic or concrete for making, the water
The height of the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of body from bottom to top is 5000~15000mm, the bottom of from
The optimum height at portion to top is 8500~11000mm.
The hydrogen supply equipment includes hydrogen hold-up vessel or hydrogen producing apparatus, and the hydrogen hold-up vessel or hydrogen producing apparatus are
Commodity hydrogen basin, electrolysis hydrogen aoxidize aqueous solutions of potassium device for producing hydrogen, electrolytic caustic soda aqueous solution device for producing hydrogen, water electrolysis hydrogen production
One of device or electrolytic saltwater device for producing hydrogen.
The oxidant inlet in the ammonium oxidation pond is connected with oxidant manufacturing device respectively.
The oxidant manufacturing device includes oxidant manufacturing device or oxidant basin, and the oxidant manufacturing device can
Using hypochlorite generator, postassium hypochlorite generator, electrolysis water oxygenerator, ozone generator, hydroxyl radical generator
One of Deng；The oxidant basin can be one of hydrogen peroxide basin, oxygen storage tank etc., for supplying oxidant.
The ammonium oxidation bottom of pond portion is also equipped with water inlet distributor, and water inlet distributor is installed on the bottom in ammonium oxidation pond
At 200~500mm.
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification method of the water body using the water body ammonium oxidation and
Nitrate-nitrogen reduction integration denitrification device, the specific steps are as follows:
1) water body enters ammonium oxidation bottom of pond portion through the 1st water distributor from the water inlet of ammonium oxidation bottom of pond portion, from bottom to top
It flows, the ammonia nitrogen in water body is converted to nitrogen and water or nitrate nitrogen and water in ammonium oxidation Chi Zhongyu oxidant reaction；Water body
In organic matter and oxidant reaction, be converted to carbon dioxide and water；
2) water body after ammonium oxidation by water pipe and is installed on nitre state at the top of ammonium oxidation pond through ammonium oxidation pond
The 2nd water distributor that nitrogen restores bottom of pond portion flows into the bottom in nitrate-nitrogen reduction pond, flows from bottom to top, the water in nitrate-nitrogen reduction pond
Nitrate nitrogen (NO in body3 -) and nitrite nitrogen (NO2 -) reacted with hydrogen, it is converted to nitrogen and water.
In ammonium oxidation pond, if the oxidant being added is hypochlorous acid or oxidant manufacturing device is sodium hypochlorite hair
When raw device, ammonia conversion nitrogen and hydrochloric acid, reaction route are as follows in water body:
NH3+HOCl—→NH2Cl+H2O (monochloro amine)
NH2Cl+HOCl—→NHCl2+H2O (dichlormaine)
2NH2Cl+HOCl—→N2↑+3HCl+H2O
In ammonium oxidation pond, if the oxidant being added is oxygen or uses electrolysis water oxygen or ozone, in water body
Ammonia be oxidized to nitrous state and nitrate nitrogen, reaction route is as follows:
2NH4 ++5O2—→2NO3 -+4H2O
3NH4 ++5O3—→3 NO3 -+6H2O
In hydrogen reduction pond, hydrogen in sewage nitrate nitrogen or nitrite nitrogen react, generate nitrogen and water, realize denitrogenation
Purpose, reaction route are as follows:
NO3 -+H2—→NO2 -+H2O
2NO2 -+8H2—→N2↑+4H2O。
Compared with existing denitrification denitrogenation device, the present invention is had the following obvious advantages:
1, effluent quality is good
The total nitrogen of the water outlet of ammonium oxidation and nitrate-nitrogen reduction integration denitrification appliance arrangement of the invention can achieve "
Table quality standard of water environment " GB3838-2002 total nitrogen index, water quality is good, can be used as recycled water and directly utilizes.
2, the existing facility of sewage plant does not make any dismounting
It does not need to change existing sewage plant prior art stream using ammonium oxidation and nitrate-nitrogen reduction integration denitrification device
Journey, existing utility and the substantially all utilization of equipment not will cause original investment waste.
3, with low investment
Only increase ammonia nitrogen and nitrate nitrogen one nitrogen rejection facility equipment on the basis of the existing facility of sewage plant, only newly increases throwing
400~6,000,000 yuan/ten thousand tons of money is compared with denitrification filter pool, investment at least 2,000,000 yuan/ten thousand tons of reduction, and with low investment 25%.
4, existing denitrogenation technology is overturned, operating cost is low
Currently, carrying out advanced nitrogen, only a kind of technique of biological denitrificaion to sewage both at home and abroad, facility includes denitrification filter
Pond, biological aerated filter etc., not only land occupation face is larger, and investment is more, and during whole service, needs to be continuously replenished charcoal source
(mainly methanol or sodium acetate), every reduction 1mg/L nitrogen, only about 0.03 yuan of medicament expense, operating cost is high, and it is big to control difficulty.
Ammonia nitrogen and nitrate nitrogen one nitrogen rejection facility denitrogenation of the invention does not need any equipment, does not need anyization yet other than equipment
Learn medicament, and every reduction 1mg/L nitrogen, it is only necessary to 0.02 degree of electricity, about 0.013 yuan of the electricity charge, operating cost only has the half of bioanalysis,
It is a kind of subversive denitrogenation technology.
5, land occupation is few
Ammonia nitrogen and the land occupation of nitrate nitrogen one nitrogen rejection facility equipment are about 40~80m2/ ten thousand tons, and the land occupation of biofilter is about
300m2/ ten thousand tons, land occupation is only a quarter of bioanalysis to 1/6th, and land occupation is few.
6, do not have to chemical agent, it is environmentally protective
Ammonia nitrogen and nitrate nitrogen one nitrogen rejection facility do not have to any chemical agent other than electricity consumption, environmentally protective.
7, easy to operate, it is easily controllable
It is not only related with the operating conditions such as filter tank temperature when using denitrification filter pool denitrogenation, charcoal source is also continuously replenished, it is fixed
When Shi Fanxi and aeration operate, governing factor is more, as long as and ammonia nitrogen and nitrate nitrogen one nitrogen rejection facility is used to control electricity one
A factor.Therefore, easy to operate, it is easily controllable.
8, the problem of bioanalysis low-temperature denitrification effect difference has been cracked
In addition to electrolysis nitrogen technology of the invention, currently, there was only a kind of technique of biological denitrificaion both at home and abroad, facility includes anti-nitre
Change deep-bed filter, sudden and violent gas biofilter, denitrification deep-bed filter etc., still, biological denitrificaion is when water temperature is less than 15 DEG C, to ammonia
The removal effect of nitrogen and total nitrogen is decreased obviously, and when leading to sewage treatment plant's winter operation, ammonia nitrogen index and total nitrogen index are unqualified.
When the present invention handles sewage, at 5~15 DEG C of water temperature, the removal rate to ammonia nitrogen is 50%~99%；At 10~15 DEG C of water temperature,
Removal rate to total nitrogen is 30%~80%.The problem of bioanalysis low-temperature denitrification effect difference is thus cracked.
Detailed description of the invention
Fig. 1 is the ammonium oxidation of water body of the present invention and the structure group of nitrate-nitrogen reduction integration denitrification Installation practice
At schematic diagram.
Specific embodiment
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
As shown in Figure 1, the ammonium oxidation and nitrate-nitrogen reduction integration denitrification Installation practice of the water body be equipped with shell,
Oxidant manufacturing device 1, pond body 2 and hydrogen supply equipment 3 are equipped with isolation plate washer in pond body 2, and the isolation plate washer is by pond body 2
It is separated into ammonium oxidation pond I and nitrate-nitrogen reduction pond II；The oxidant and sewage A that the oxidant manufacturing device 1 manufactures pass through
Valve 1-1, sewage and oxidant inlet 1-2 and the 1st water distributor 1-3 enter ammonium oxidation pond I, the removal ammonia in ammonium oxidation pond I
Water body after nitrogen enters nitrate-nitrogen reduction pond II, the purification in nitrate-nitrogen reduction pond II by water inlet pipe 2-1 and the 2nd water distributor 2-2
Purified water B is discharged in water out 2-5；The hydrogen H of the storage of hydrogen supply equipment 3 or manufacture passes through hydrogen delivery tube 2-3 and hydrogen
The bottom in gas pipe 2-4 feeding nitrate-nitrogen reduction pond II, ammonium oxidation pond I and nitrate-nitrogen reduction pond II is equipped with the dirt of cone shape
Mud is collected to be collected from the sludge of cone shape and sludge 23 is discharged with blowdown apparatus 2-9 with blowdown apparatus 2-9, sludge.
The catalyst layer 2-7 for improving hydrogen reduction nitrate nitrogen rate is also equipped in the nitrate-nitrogen reduction pond；Catalyst layer
2-7 with a thickness of 1000~3000mm；The installation site of catalyst layer 2-7 is located at 500~1000mm above hydrogen gas pipe 2-4
Place, is fixed catalyst layer 2-7 with lower supporting plate 2-6 and upper backup pad 2-8.
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of the water body are cylindrical body, cuboid or square
One kind, shell are formed using steel plate, aluminium sheet, copper sheet, titanium plate, PVC plastic, PE plastics, glass reinforced plastic or concrete for making, the water
The height of the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of body from bottom to top is 5000~15000mm, the bottom of from
The optimum height at portion to top is 8500~11000mm.
Commodity hydrogen basin, electrolysis hydrogen oxidation aqueous solutions of potassium device for producing hydrogen, hydrogen and oxygen electrolyzing can be used in the hydrogen supply equipment 3
Change one in sodium water solution device for producing hydrogen, device for preparing hydrogen or electrolytic saltwater device for producing hydrogen (hypochlorite generator) etc.
Kind.
The oxidant inlet in the ammonium oxidation pond is connected with oxidant manufacturing device or oxidant basin respectively.
Hypochlorite generator, postassium hypochlorite generator, electrolysis water oxygen dress can be used in the oxidant manufacturing device 1
It sets, one of ozone generator, hydroxyl radical generator etc..
The oxidant basin can be one of hydrogen peroxide basin, oxygen storage tank, for supplying oxidant.
The ammonium oxidation bottom of pond portion is also equipped with water inlet distributor, and water inlet distributor is installed on the bottom in ammonium oxidation pond
At 200~500mm.
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification method of the water body using the water body ammonium oxidation and
Nitrate-nitrogen reduction integration denitrification device, the specific steps are as follows:
1) water body enters I bottom of ammonium oxidation pond, You Xiaxiang through the 1st water distributor from the water inlet of I bottom of ammonium oxidation pond
Upper flowing, the ammonia nitrogen in water body are converted to nitrogen and water in ammonium oxidation Chi Zhongyu oxidant reaction；Organic matter in water body with
Oxidant reaction is converted to carbon dioxide and water；
2) water body after ammonium oxidation by water pipe and is installed on from the top in ammonium oxidation pond I through ammonium oxidation pond I
2nd water distributor of II bottom of nitrate-nitrogen reduction pond flows into the bottom in nitrate-nitrogen reduction pond I, flows from bottom to top, nitrate nitrogen also
Nitrate nitrogen (NO in the water body in former pond II3 -) and nitrite nitrogen (NO2 -) reacted with hydrogen, it is converted to nitrogen and water.
In ammonium oxidation pond, if the oxidant being added is hypochlorous acid or oxidant preparation facilities is sodium hypochlorite hair
When raw device, ammonia conversion nitrogen and hydrochloric acid, reaction route are as follows in water body:
NH3+HOCl—→NH2Cl+H2O (monochloro amine)
NH2Cl+HOCl—→NHCl2+H2O (dichlormaine)
2NH2Cl+HOCl—→N2↑+3HCl+H2O
In ammonium oxidation pond, if the oxidant being added is oxygen or uses electrolysis water oxygen or ozone, in water body
Ammonia be oxidized to nitrous state and nitrate nitrogen, reaction route is as follows:
2NH4 ++5O2—→2NO3 -+4H2O
3NH4 ++5O3—→3NO3 -+6H2O
In hydrogen reduction pond, hydrogen in sewage nitrate nitrogen or nitrite nitrogen react, generate nitrogen and water, realize denitrogenation
Purpose, reaction route are as follows:
NO3 -+H2—→NO2 -+H2O
2NO2 -+8H2—→N2↑+4H2O。
Claims (10)
1. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body, it is characterised in that be equipped with shell, oxidant manufactures
Device, pond body and hydrogen supply equipment, are equipped with isolation plate washer in pond body, and pond body is separated into ammonium oxidation pond by the isolation plate washer
With nitrate-nitrogen reduction pond；The oxidant and sewage of the oxidant manufacturing device manufacture pass through valve, sewage and oxidant inlet
Enter ammonium oxidation pond with the 1st water distributor, the water body after the ammonia nitrogen removal in ammonium oxidation pond is entered by water inlet pipe and the 2nd water distributor
Purified water is discharged in the treated water outlet in nitrate-nitrogen reduction pond, nitrate-nitrogen reduction pond；The hydrogen that the hydrogen supply equipment generates passes through
The bottom in hydrogen delivery tube and hydrogen gas pipe feeding nitrate-nitrogen reduction pond, ammonium oxidation pond and nitrate-nitrogen reduction pond is equipped with circular cone
The sludge of the bodily form is collected and blowdown apparatus, and sludge is collected from the sludge of cone shape and sludge is discharged with blowdown apparatus.
2. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
The catalyst layer for improving hydrogen reduction nitrate nitrogen rate is also equipped in nitrate-nitrogen reduction pond；Catalyst layer with a thickness of 1000~
3000mm；The installation site of catalyst layer is located above hydrogen gas pipe at 500~1000mm, with lower supporting plate and upper backup pad
Catalyst layer is fixed.
3. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body are one kind of cylindrical body, cuboid or square, and shell is adopted
It is formed with steel plate, aluminium sheet, copper sheet, titanium plate, PVC plastic, PE plastics, glass reinforced plastic or concrete for making, the ammonia nitrogen oxygen of the water body
Change and the height of nitrate-nitrogen reduction integration denitrification device from bottom to top is 5000~15000mm, from bottom to top
Optimum height is 8500~11000mm.
4. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
Hydrogen supply equipment includes hydrogen hold-up vessel or hydrogen producing apparatus, and the hydrogen hold-up vessel or hydrogen producing apparatus are the storages of commodity hydrogen
Tank, electrolysis hydrogen oxidation aqueous solutions of potassium device for producing hydrogen, electrolytic caustic soda aqueous solution device for producing hydrogen, device for preparing hydrogen or electrolysis
One of saline solution device for producing hydrogen.
5. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
The oxidant inlet in ammonium oxidation pond is connected with oxidant manufacturing device respectively.
6. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
Oxidant manufacturing device includes oxidant preparation facilities or oxidant basin.
7. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as claimed in claim 6, it is characterised in that described
Oxidant manufacturing device uses hypochlorite generator, postassium hypochlorite generator, electrolysis water oxygenerator, ozone generator, hydroxyl
One of base free-radical generator；The oxidant basin is one of hydrogen peroxide basin, oxygen storage tank, for supplying oxygen
Agent.
8. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body as described in claim 1, it is characterised in that described
Ammonium oxidation bottom of pond portion is also equipped with water inlet distributor, and water inlet distributor is installed on the 200~500mm of bottom in ammonium oxidation pond
Place.
9. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification method of water body, it is characterised in that using such as claim 1~8 institute
The ammonium oxidation and nitrate-nitrogen reduction integration denitrification device of water body are stated, specific step is as follows for the denitrogenation method:
1) water body enters ammonium oxidation bottom of pond portion through the 1st water distributor from the water inlet of ammonium oxidation bottom of pond portion, flows from bottom to top,
Ammonia nitrogen in water body is converted to nitrogen and water or nitrate nitrogen and water in ammonium oxidation Chi Zhongyu oxidant reaction；Having in water body
Machine object and oxidant reaction, are converted to carbon dioxide and water；
2) water body after ammonium oxidation by water pipe and is installed on nitrate nitrogen also at the top of ammonium oxidation pond through ammonium oxidation pond
2nd water distributor of former bottom of pond portion flows into the bottom in nitrate-nitrogen reduction pond, flows from bottom to top, in the water body in nitrate-nitrogen reduction pond
Nitrate nitrogen and nitrite nitrogen reacted with hydrogen, be converted to nitrogen and water.
10. the ammonium oxidation and nitrate-nitrogen reduction integration denitrification method of water body as claimed in claim 9, it is characterised in that in ammonia
In nitrogen oxidation pond, if the oxidant being added is hypochlorous acid or when oxidant preparation facilities is hypochlorite generator, water body
Middle ammonia conversion nitrogen and hydrochloric acid, reaction route are as follows:
NH3+HOCl—→NH2Cl+H2O
NH2Cl+HOCl—→NHCl2+H2O
2NH2Cl+HOCl—→N2↑+3HCl+H2O
Ammonia in ammonium oxidation pond, if the oxidant being added is oxygen or uses electrolysis water oxygen or ozone, in water body
It is oxidized to nitrous state and nitrate nitrogen, reaction route is as follows:
2NH4 ++5O2—→2NO3 -+4H2O
3NH4 ++5O3—→3NO3 -+6H2O
In hydrogen reduction pond, hydrogen in sewage nitrate nitrogen or nitrite nitrogen react, generate nitrogen and water, realize denitrogenation mesh
, reaction route is as follows:
NO3 -+H2—→NO2 -+H2O
2NO2 -+8H2—→N2↑+4H2O。
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Cited By (5)
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| CN113354169A (en) * | 2021-07-15 | 2021-09-07 | 佛山市南海区苏科大环境研究院 | Advanced oxidation reaction equipment using water as medium |
| CN113683236A (en) * | 2021-07-15 | 2021-11-23 | 佛山市南海区苏科大环境研究院 | Advanced oxidation reaction process using water as medium |
| CN115448439A (en) * | 2022-09-22 | 2022-12-09 | 重庆工商大学 | Method for removing nitrate nitrogen in water body by combining nano zero-valent iron/reduced graphene oxide composite material with oxidant |
| CN116282462A (en) * | 2022-10-08 | 2023-06-23 | 南京大学盐城环保技术与工程研究院 | Photocatalysis device for advanced treatment of biochemical tail water and photocatalysis process thereof |
| CN116282462B (en) * | 2022-10-08 | 2024-07-02 | 南京大学盐城环保技术与工程研究院 | Photocatalysis device for advanced treatment of biochemical tail water and photocatalysis process thereof |
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