Continuous flow dephosphorization reaction device

Abstract

The utility model discloses a continuous flow dephosphorization reaction device, the continuous flow dephosphorization reaction device comprises a main body pool, a peristaltic pump, a precipitant feeding device and a phosphorus content detection device, the inner wall of the main body pool is provided with at least two pairs of drawing type slide rails, the drawing type slide rails are vertically provided with carbon films facing the flowing direction of sewage, and the carbon films are arranged on the main body pool. A nickel-aluminum hydrotalcite material grows in the carbon film, and the carbon film divides the main body tank into a settling zone, a dephosphorization reaction zone and a purification zone in sequence along the flowing direction of sewage. The continuous flow dephosphorization reaction device disclosed by the utility model has the advantages of high dephosphorization efficiency, good settling performance and easiness in cleaning and recycling the adsorbent.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to a continuous flow phosphorus removal reaction device. BACKGROUND

[0002] At present, the most main pollution problem in the Yangtze River basin is total phosphorus pollution, how to reasonably dispose the phosphorus-containing wastewater in industrial production, and realize green discharge become a hot issue.

[0003] The large use of detergent and phosphorus-containing fertilizer, the exploitation of phosphate rock and the discharge of phosphorus chemical industry wastewater greatly increase the exposure degree of phosphorus in nature. At the same time, phosphorus as the main pollutant causing water body eutrophication becomes the main nutrient limiting factor of water body such as lake and reservoir.

[0004] At present, the main phosphorus removal technology in China mainly includes biological phosphorus removal, chemical precipitation and membrane separation phosphorus removal. Among them, biological phosphorus removal relies on microorganisms or specific plants to absorb and fix phosphorus under aerobic conditions, but the effect is affected by many factors such as dissolved oxygen and temperature, and additional carbon source is needed in some application occasions, and the single biological phosphorus removal technology can only reduce total phosphorus to 1.0-2.0mg / L, which can not meet the demand. Chemical precipitation is to form phosphate precipitate by adding reagent, and inorganic phosphorus is removed by solid-liquid separation, but the reagent amount is large, the cost is high, and there is the risk of secondary pollution. Membrane separation technology, especially reverse osmosis technology, has better separation performance, but the operation cost is higher, and the application scene is limited.

[0005] Compared with the existing biological phosphorus removal method and chemical precipitation method, the adsorption method has great development potential. The adsorption method has the advantages of good adsorption effect, stable operation and convenient installation of treatment equipment, but the current adsorption method has great recovery difficulty and is easy to produce secondary pollution. UTILITY MODEL CONTENT

[0006] Therefore, the utility model aims at providing a continuous flow phosphorus removal reaction device, which has the advantages of efficient phosphorus removal, good sedimentation performance and easy cleaning and recovery of adsorbent.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A continuous flow phosphorus removal reaction device, the continuous flow phosphorus removal reaction device includes main body pool, peristaltic pump, precipitant feeding device and phosphorus content detection device;

[0009] At least two pairs of pull-out slide rails are arranged on the inner wall of the main body pool, carbon membranes facing the sewage flow direction are vertically installed on the pull-out slide rails, nickel-aluminum hydrotalcite material is grown in the carbon membranes, and the carbon membranes sequentially divide the main body pool into a precipitation zone, a phosphorus removal reaction zone and a purification zone along the sewage flow direction;

[0010] The inlet of the peristaltic pump is communicated with the water inlet pipe, the outlet of the peristaltic pump is communicated with the sedimentation area through the flow equalizing pipe, the sedimentation agent feeding device is communicated with the sedimentation area through the feeding pipe, the inlet of the phosphorus content detection device is communicated with the purification area through the water outlet pipe, the phosphorus content non-standard outlet of the phosphorus content detection device is communicated with the phosphorus removal reaction area through the backflow pipe, and the phosphorus content standard outlet of the phosphorus content detection device is communicated with the water outlet pipe.

[0011] As a preferred technical scheme, three pairs of pull-out slide rails are arranged on the inner wall of the main pool, and carbon membranes facing the sewage flow direction are vertically arranged on the pull-out slide rails.

[0012] As a preferred technical scheme, the intervals between the carbon membranes are equal.

[0013] As a preferred technical scheme, stirring blades are arranged in the phosphorus removal reaction area.

[0014] As a preferred technical scheme, a mud scraping plate and a sediment collection box are arranged at the bottom of the sedimentation area, the mud scraping plate is driven by a chain and a motor to reciprocate at the bottom of the sedimentation area, and is used for scraping the sludge at the bottom of the sedimentation area into the sediment collection box.

[0015] As a preferred technical scheme, the sedimentation agent feeding device is provided with a siphon A bin and a siphon B bin with height differences, the siphon A bin and the siphon B bin are communicated through a reverse U-shaped pipe, the siphon A bin is communicated with the sedimentation agent feeding device, and the siphon B bin is communicated with the feeding pipe.

[0016] The present application has the following beneficial effects:

[0017] 1. The continuous flow phosphorus removal reaction device is characterized in that the carbon membranes are pull-out installed in the main pool, the carbon membranes separate the main pool into a sedimentation area, a phosphorus removal reaction area and a purification area, and the carbon membranes grow with nickel-aluminum hydrotalcite materials, so that the carbon membranes can effectively adsorb and treat phosphorus in phosphorus-containing sewage treated by the sedimentation area, the carbon membranes are convenient to pull out and replace, the problem that the existing phosphorus removal method directly puts the adsorption bag into the water body and is difficult to recycle and easily causes secondary pollution is overcome, and the device has the advantages of efficient phosphorus removal, good sedimentation performance and easy cleaning and recycling of the adsorbent.

[0018] 2. The present application is provided with multiple layers of carbon membranes along the sewage flow direction, so that the phosphorus-containing sewage can fully contact with the carbon membranes, continuous multi-layer reaction is realized, and the phosphorus removal efficiency is greatly improved.

[0019] 3. The present application is provided with a mud scraping plate and a sediment collection box at the bottom of the sedimentation area, the mud scraping plate automatically scrapes the sludge at the bottom of the sedimentation area into the sediment collection box, self-cleaning is realized, and the maintenance cost of the main pool in the later stage is greatly reduced.

[0020] 4、The utility model discloses set up the phosphorus content detection device real -time monitoring to the sewage that has handled, the cyclic treatment has guaranteed the phosphorus content discharge standard. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the utility model's purpose, technical scheme and beneficial effect more clear, the utility model provides following drawing to explain:

[0022] Figure 1 It is the structural diagram of continuous flow phosphorus removal reaction device. DETAILED DESCRIPTION

[0023] The utility model makes further explanation to the utility model below combining with the drawing and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0024] As Figure 1 The continuous flow phosphorus removal reaction device includes main body pool 5, peristaltic pump 1, precipitant throwing device 2 and phosphorus content detection device 6.

[0025] At least two pairs of pull-out slide rails (three pairs of pull-out slide rails in the drawing) are arranged on the inner wall of the main body pool 5, the carbon film 4, 401, 402 facing the sewage flow direction is vertically installed on the pull-out slide rail, the interval between the carbon films is equal, the nickel-aluminum hydrotalcite material is grown in the carbon film, and the carbon film 4, 401, 402 sequentially divides the main body pool 5 into the precipitation area 3, two phosphorus removal reaction areas 501 and 502 and the purification area 503 along the sewage flow direction.

[0026] In order to make the phosphorus-containing sewage fully contact with the carbon film, improve the phosphorus removal efficiency, the stirring blade 504, 505 is arranged in the phosphorus removal reaction area 501, 502.

[0027] The bottom of the precipitation area 3 is provided with the mud scraping plate 301 and the precipitation collection box 304, the mud scraping plate 301 is driven to reciprocate at the bottom of the precipitation area through the chain 302 and the motor 303, and is used for scraping the sludge at the bottom of the precipitation area into the precipitation collection box 304.

[0028] The inlet of the peristaltic pump 1 is communicated with the water inlet pipe 101, the outlet of the peristaltic pump 1 is communicated with the precipitation area 3 through the flow equalizing pipe 102, the precipitant throwing device 2 is communicated with the precipitation area 3 through the throwing pipe 202, the inlet of the phosphorus content detection device 6 is communicated with the purification area 503 through the water outlet pipe 602, the phosphorus content non-standard outlet of the phosphorus content detection device 6 is communicated with the phosphorus removal reaction area 501 through the backflow pipe 603, and the phosphorus content standard outlet of the phosphorus content detection device 6 is communicated with the drain pipe 601.

[0029] The bottom of the precipitant feeding device 2 is provided with a siphon A bin 203 and a siphon B bin 205 with height difference, the siphon A bin 203 and the siphon B bin 205 are communicated through a reverse U-shaped pipe 204, the siphon A bin 203 is communicated with the precipitant feeding device 2, and the siphon B bin 205 is communicated with the feeding pipe 202. Through the above structure, the precipitant flows into the precipitation area 3 through the siphon effect.

[0030] The working process of the continuous flow phosphorus removal reaction device is as follows:

[0031] The phosphorus-containing sewage is introduced into the peristaltic pump 1 through the water inlet pipe 101, and the phosphorus-containing sewage is input into the precipitation area 3 from the flow equalization pipe 102 through the peristaltic pump 1, and the peristaltic pump 1 and the flow equalization pipe 102 can slow down the flow speed of the phosphorus-containing sewage; in the precipitation area 3, the precipitant is fed through the precipitant feeding device 2, and most of the silt and the like in the phosphorus-containing sewage is precipitated under the action of the precipitant; then the phosphorus-containing sewage enters the phosphorus removal reaction area 501, 502, and under the action of the stirring blades 504, 505, the carbon film 4, 401, 402 is fully contacted with the phosphorus-containing sewage, so that the carbon film 4, 401, 402 fully adsorbs phosphorus; then the sewage enters the purification area 503, and then is discharged from the water outlet pipe 602, and the phosphorus content is detected through the phosphorus content detection device 6, if the phosphorus content meets the standard, it is discharged through the drain pipe 601, if the phosphorus content does not meet the standard, it is re-input into the phosphorus removal reaction area 501 through the backflow pipe 603 and is adsorbed by the carbon film again until the phosphorus content meets the standard and is discharged.

[0032] The above-described embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. The equivalent substitutions or transformations made by the person skilled in the art on the basis of the present application are all within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A continuous flow phosphorus removal reactor, characterized in that: The continuous flow phosphorus removal reactor includes a main tank, a peristaltic pump, a precipitant dosing device, and a phosphorus content detection device. The inner wall of the main tank is provided with at least two pull-out slide rails. A carbon film facing the direction of sewage flow is vertically installed on the pull-out slide rails. Nickel-aluminum hydrotalcite material is grown in the carbon film. The carbon film divides the main tank into a sedimentation zone, a phosphorus removal reaction zone and a purification zone in sequence along the direction of sewage flow. The inlet of the peristaltic pump is connected to the water inlet pipe, the outlet of the peristaltic pump is connected to the sedimentation zone through the flow equalization pipe, the precipitant dosing device is connected to the sedimentation zone through the dosing pipe, the inlet of the phosphorus content detection device is connected to the purification zone through the water outlet pipe, the phosphorus content failure outlet of the phosphorus content detection device is connected to the phosphorus removal reaction zone through the return pipe, and the phosphorus content compliance outlet of the phosphorus content detection device is connected to the drain pipe.

2. The continuous flow phosphorus removal reactor according to claim 1, characterized in that: The main tank is equipped with three sets of pull-out slide rails on its inner wall. A carbon film facing the direction of sewage flow is vertically installed on the pull-out slide rails. The carbon film divides the main tank into a sedimentation zone, two phosphorus removal reaction zones, and a purification zone in sequence along the direction of sewage flow.

3. The continuous flow phosphorus removal reactor according to claim 2, characterized in that: The spacing between the carbon films is equal.

4. The continuous flow phosphorus removal reactor according to claim 1, characterized in that: The phosphorus removal reaction zone is equipped with stirring blades.

5. The continuous flow phosphorus removal reactor according to claim 1, characterized in that: The bottom of the sedimentation zone is equipped with a sludge scraper and a sedimentation collection box. The sludge scraper is driven by a chain and a motor to reciprocate at the bottom of the sedimentation zone, which is used to scrape the sludge at the bottom of the sedimentation zone into the sedimentation collection box.

6. The continuous flow phosphorus removal reactor according to claim 1, characterized in that: The bottom of the precipitant dispensing device is provided with a siphon A chamber and a siphon B chamber with a height difference. The siphon A chamber and the siphon B chamber are connected by an inverted U-shaped pipe. The siphon A chamber is connected to the precipitant dispensing device, and the siphon B chamber is connected to the dispensing pipe.

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