CN219117207U - Resin denitrification reactor - Google Patents
Resin denitrification reactor Download PDFInfo
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- CN219117207U CN219117207U CN202223598393.XU CN202223598393U CN219117207U CN 219117207 U CN219117207 U CN 219117207U CN 202223598393 U CN202223598393 U CN 202223598393U CN 219117207 U CN219117207 U CN 219117207U
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Abstract
The utility model relates to the technical field of sewage treatment, in particular to a resin denitrification reactor, which comprises a reactor tank body, wherein a water outlet is formed in the top of the reactor tank body, a resin suspension separation area, a regenerated resin adsorption area and a saturated resin storage area are arranged in the reactor tank body, the resin suspension separation area is positioned at the upper part of the reactor tank body, the regenerated resin adsorption area is positioned below the resin suspension separation area, the regenerated resin adsorption area and the saturated resin storage area are separated by a saturated resin separation guide plate, a water inlet water distributor and a regenerated resin feeding and distributing plate are arranged at the bottom of the regenerated resin adsorption area, the water inlet water distributor is communicated with a water inlet pipe, the regenerated resin feeding and distributing plate is communicated with a regenerated resin feeding pipe, a saturated resin discharge hole is formed in the bottom of the reactor tank body, and the saturated resin discharge hole is communicated with the saturated resin storage area. The utility model can solve the problems of poor regeneration effect, discontinuous equipment operation, easy hardening of resin, poor regeneration effect and the like in the prior art.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a resin denitrification reactor.
Background
The total nitrogen in tail water discharged by a common town sewage treatment plant mainly comprises nitrate nitrogen. At present, nitrate nitrogen removal technology is mainly divided into a biological method, a membrane separation method, a resin ion exchange method and the like. Biological process of degrading nitrate into nitrogen with denitrifying bacteria has limited application range and difficult control of technological conditions. The membrane separation method has certain limit on application due to the problems of higher treatment cost, high pretreatment requirement, easy secondary pollution and the like; the resin adsorption ion exchange denitrification method has the characteristics of mature technology, simple regeneration, convenient operation management, high nitrate removal degree, low operation cost and the like, and the regenerated waste liquid can be denitrified by adding the microorganism acclimatized by the carbon source, so that the technology is changed into an important technology for advanced denitrification of sewage treatment.
The resin denitrification equipment is commonly used at present, resin is filled in the equipment, the quantity is fixed, and the quantity of nitrate radical absorbed by the denitrification resin equipment is also fixed. After resin adsorption saturation, water inflow is stopped, and the resin is regenerated by brine and then used. Suspended matters, grease, organic matters, metal ions and the like in the sewage pollute the resin, so that the resin exchange capacity is reduced, and the polluted resin needs to be recovered after the equipment is operated for a period of time. The conventional resin denitrification equipment has low utilization rate, large resin consumption and poor regeneration effect. In order to overcome the problems, a resin denitrification reactor with high equipment utilization rate, small resin consumption and good regeneration effect needs to be developed.
Disclosure of Invention
The utility model aims to provide the resin denitrification reactor which has the advantages of good treatment effect, less investment, small occupied area, low operation cost, simple operation, quick starting, stable operation and strong applicability, and is suitable for upgrading and reconstruction of sewage plants.
The scheme adopted by the utility model for achieving the purpose is as follows: the utility model provides a resin denitrification reactor, includes the reactor tank body, reactor tank body top is provided with produces the water export, is provided with resin suspension separation district, regeneration resin adsorption zone and saturated resin storage area in the reactor tank body, resin suspension separation district is located reactor tank body upper portion, and regeneration resin adsorption zone is located the below of resin suspension separation district, separates through saturated resin separation guide plate between regeneration resin adsorption zone and the saturated resin storage area, and regeneration resin adsorption zone bottom is provided with water inlet water distributor and regeneration resin feeding and joins in marriage the flow plate, water inlet water distributor intercommunication has the inlet tube, regeneration resin feeding joins in marriage the flow plate intercommunication and has regeneration resin inlet pipe, and the bottom of reactor tank body is provided with the saturated resin discharge gate, saturated resin discharge gate and saturated resin storage area intercommunication.
Preferably, a resin baffle is arranged in the reactor tank body, and the resin baffle is positioned between the water outlet and the resin suspension separation zone.
Preferably, the water producing outlet is communicated with a water producing pipe, and the water producing pipe is provided with a water producing valve.
Preferably, the water inlet distributor consists of a main water distribution pipe and a branch water distribution pipe communicated with the main water distribution pipe.
Preferably, the pores of the main water distribution pipe and the branch water distribution pipe are smaller than the diameter of the resin.
Preferably, the regenerated resin feeding and distributing plate consists of a horn mouth and a conical baffle plate arranged below the horn mouth.
Preferably, the reactor tank is further provided with a sight glass, which is located in the saturated resin storage area.
The utility model has the following advantages and beneficial effects:
the resin denitrification reactor can solve the problems of low equipment utilization rate, large resin consumption, poor regeneration effect, discontinuous equipment operation, easy hardening of resin, poor regeneration effect and the like of the traditional resin denitrification reactor.
According to the resin denitrification reactor disclosed by the utility model, water is uniformly distributed through the water distributor, regenerated resin is uniformly distributed through the regenerated resin distribution plate, and the regenerated resin is fully contacted with the water, so that the residence time is greatly shortened.
The resin denitrification reactor and the saturated resin storage area can store and saturate resin, then the saturated resin is discharged through the saturated resin discharge port and then regenerated, and meanwhile, the regenerated resin is input into the reactor tank body through the regenerated resin feeding and distributing plate through the regenerated resin feeding pipe to continue denitrification reaction. The saturated resin of a plurality of sewage plants can be simultaneously regenerated in a concentrated way, so that the investment cost of users is greatly reduced, the resin utilization rate is improved, and the use cost is reduced.
Compared with the traditional process, the utility model has the advantages of high equipment utilization rate, good treatment effect, less investment, less occupied area, low running cost, simple operation, quick starting, stable running and strong applicability, and is suitable for upgrading and reconstruction of sewage plants.
Drawings
Fig. 1: the resin denitrification reactor of the utility model is schematically shown;
fig. 2: schematic diagram of water inlet distributor in fig. 1:
fig. 3: the regenerated resin feed distribution plate schematic diagram in fig. 1:
in the figure, water producing valve 1, water producing pipe 2, resin baffle plate 3, overhaul hole 4, resin suspension separation zone 5, reactor tank 6, saturated resin separation guide plate 7, regenerated resin feed pipe 8, regenerated resin feed pump 9, regenerated resin feed distributing plate 10, regenerated resin adsorption zone 11, sight glass 12, water inlet pipe 13, water inlet pump 14, water inlet distributor 15, saturated resin storage zone 16, saturated resin discharge pipe 17, saturated resin discharge pump 18, supporting leg 19, water inlet distributing main pipe 20, water inlet distributing branch pipe 21, bell mouth 22 and conical baffle plate 23.
Detailed Description
For a better understanding of the present utility model, the following examples are further illustrative of the present utility model, but the contents of the present utility model are not limited to the following examples only.
As shown in fig. 1-3, a resin denitrification reactor comprises a reactor tank body 6, a water outlet is formed in the top of the reactor tank body 6, a resin suspension separation zone 5, a regenerated resin adsorption zone 11 and a saturated resin storage zone 16 are arranged in the reactor tank body 6, the resin suspension separation zone 5 is located at the upper part of the reactor tank body 6, the regenerated resin adsorption zone 11 is located below the resin suspension separation zone 5, the regenerated resin adsorption zone 11 and the saturated resin storage zone 16 are separated by a saturated resin separation guide plate 7, a water inlet distributor 15 and a regenerated resin feeding and distributing plate 10 are arranged at the bottom of the regenerated resin adsorption zone 11, the water inlet distributor 15 is communicated with a water inlet pipe 13, the regenerated resin feeding and distributing plate 10 is communicated with a regenerated resin feeding pipe 8, a saturated resin discharge port is formed in the bottom of the reactor tank body 6, and the saturated resin discharge port is communicated with the saturated resin storage zone 16.
A resin baffle plate 3 is arranged in the reactor tank body 6, and the resin baffle plate 3 is positioned between the water outlet and the resin suspension separation zone 5.
The device is divided into: a regenerated resin adsorption area 11, a water inlet and regenerated resin adsorption reaction area; a saturated resin separation zone 5, wherein saturated suspension resin is separated by a deflector 7; the saturated resin storage area 16 stores the separated saturated resin, and the saturated resin is discharged to the outside of the equipment for regeneration through the saturated resin discharging pump 18.
The sewage to be treated is conveyed by a water inlet pipe 13 through a water inlet pump 14, and uniformly distributed by a water inlet distributor 15, wherein the water distributor consists of a water distribution main pipe 20 and a water distribution straight pipe 21.
The regenerated resin is conveyed by a regenerated resin feeding pipe 8 through a regenerated resin feeding pump 9 and is uniformly distributed through a regenerated resin feeding distributing plate 10. The fully mixed reaction of the sewage and the regenerated resin is ensured, nitrate nitrogen in the sewage is adsorbed and removed by the regenerated resin, the adsorbed saturated resin rises to a saturated resin separation area 5 along with water flow, the resin in the sewage is intercepted by a resin baffle plate 3, and the purified sewage is discharged through a water production pipe 2 and a water production valve 1 by the baffle plate 3.
The device is provided with the water producing valve 1, the water producing valve can be closed in a short time when resin is drained, the saturated resin discharge is quickened through the water inlet pressure, the saturated resin discharge time is greatly shortened, and meanwhile, the hardening and blockage of the resin can be avoided.
The device is provided with the overhaul hole 4 and the sight glass 12, and is convenient to overhaul and observe.
The reactor tank body 6 has the diameter of 3.2m and the total height of 6.8m, and is made of carbon steel, and is externally corrosion-proof and lined with acid-base resistant rubber. The saturated resin separating guide plate 7 is made of 316L stainless steel and welded with the tank body through a bracket, and the gap volume between the saturated resin separating guide plate and the tank body accounts for 1/16-1/12 of the total volume of the tank body. The tank body is connected with the water producing pipe 2, the overhaul hole 4, the regenerated resin feeding pipe 8, the water inlet pipe 13, the saturated resin discharging pipe 17, the supporting feet 19 and the sight glass 12.
The water inlet pipe in the tank is connected with a water inlet distributor 15, the water inlet distributor 15 is connected with a water distribution branch pipe 21 by a main water distribution pipe 20, the water outlet gap of the water distribution branch pipe 21 is 0.1-0.2 mm, and the water inlet distributor 15 is fixedly connected with the reactor tank 6 by a bracket.
The regenerated resin feed pipe 8 is connected with a regenerated resin feed distribution plate 10, and the regenerated resin feed distribution plate 10 consists of bell mouths 22 and 23 conical baffles.
The first-level A-standard tail water of the sewage plant is taken as system water, the tail water is conveyed by a water inlet pump 14, uniformly distributed by a water inlet water distributor 15, enters a regenerated resin adsorption zone 11, the regenerated resin is conveyed by a regenerated resin pump 9, uniformly distributed by a regenerated resin feeding and distributing plate 10, the regenerated resin is fully mixed with the water, and nitrate in the sewage is removed by resin exchange adsorption. The adsorption saturated resin rises to a saturated resin separation zone 5 along with the water flow, the resin in the sewage is intercepted by a resin baffle plate 3, and the purified sewage passes through the baffle plate 3, passes through a water production pipe 2 and is producedThe water valve 1 discharges, the total nitrogen of the nitrate radical in the discharged water is less than or equal to 1mg/L, and the daily treatment water quantity is 4000m 3 /d～5000m 3 And/d, the volume of the resin in the reactor accounts for 1/400-1/500 of the volume of the treated water. The saturated resin is settled to a saturated resin storage area 16 through a gap between the saturated resin separation guide plate 7 and the tank body for storage, and is conveyed to the outside of the equipment through a saturated resin pump for regeneration through 6% -8% sodium chloride solution. And adjusting the resin consumption and the saturated regeneration frequency in the reactor by an in-out water nitrate on-line monitoring instrument.
The resin discharge condition in the saturated resin storage area 16 is observed through the sight glass 12, the water producing valve 1 is closed periodically, and the resin in the saturated resin storage area 16 is washed by water inflow to prevent hardening.
The nitrate selective ion exchange resin of the embodiment is macroporous anion nitrate ion resin, the appearance form is spherical particles, the skeleton is polystyrene copolymer, the functional group is quaternary amine group, the granularity range is 0.3-1.2 mm, and the total exchange capacity is 1000mol/m 3 Chlorine type with water content of 52+ -3% and loading density of 700-750g/l.
While the utility model has been described with respect to the preferred embodiments, it will be understood that the utility model is not limited thereto, but is capable of modification and variation without departing from the spirit of the utility model, as will be apparent to those skilled in the art.
Claims (7)
1. A resin denitrification reactor, characterized in that: including the reactor jar body, reactor jar body top is provided with produces the water export, is provided with resin suspension separation zone, regeneration resin adsorption zone and saturated resin storage area in the reactor jar body, resin suspension separation zone is located reactor jar body upper portion, and regeneration resin adsorption zone is located the below of resin suspension separation zone, separates through saturated resin separation guide plate between regeneration resin adsorption zone and the saturated resin storage area, and regeneration resin adsorption zone bottom is provided with water distributor and regeneration resin feeding and joins in marriage the flow board, water distributor intercommunication of intaking has the inlet tube, regeneration resin feeding is joined in marriage the flow board intercommunication and is had regeneration resin inlet pipe, and the bottom of the reactor jar body is provided with the saturated resin discharge gate, saturated resin discharge gate and saturated resin storage area intercommunication.
2. The resin denitrification reactor according to claim 1, wherein: the reactor tank body is internally provided with a resin baffle plate, and the resin baffle plate is positioned between the water outlet and the resin suspension separation area.
3. The resin denitrification reactor according to claim 1, wherein: the water producing outlet is communicated with a water producing pipe, and the water producing pipe is provided with a water producing valve.
4. The resin denitrification reactor according to claim 1, wherein: the water inlet and distribution device consists of a main water distribution pipe and a branch water distribution pipe communicated with the main water distribution pipe.
5. The resin denitrification reactor according to claim 4, wherein: and the pores of the main water distribution pipe and the branch water distribution pipe are smaller than the diameter of the resin.
6. The resin denitrification reactor according to claim 1, wherein: the regenerated resin feeding and distributing plate consists of a horn mouth and a conical baffle plate arranged below the horn mouth.
7. The resin denitrification reactor according to claim 1, wherein: the reactor tank is also provided with a sight glass, and the sight glass is positioned in the saturated resin storage area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598393.XU CN219117207U (en) | 2022-12-30 | 2022-12-30 | Resin denitrification reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223598393.XU CN219117207U (en) | 2022-12-30 | 2022-12-30 | Resin denitrification reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219117207U true CN219117207U (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223598393.XU Active CN219117207U (en) | 2022-12-30 | 2022-12-30 | Resin denitrification reactor |
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| CN (1) | CN219117207U (en) |
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2022
- 2022-12-30 CN CN202223598393.XU patent/CN219117207U/en active Active
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