CN220642772U - Circulating water treatment device of industrial circulating water culture system - Google Patents
Circulating water treatment device of industrial circulating water culture system Download PDFInfo
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- CN220642772U CN220642772U CN202322051862.4U CN202322051862U CN220642772U CN 220642772 U CN220642772 U CN 220642772U CN 202322051862 U CN202322051862 U CN 202322051862U CN 220642772 U CN220642772 U CN 220642772U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 270
- 238000006243 chemical reaction Methods 0.000 claims abstract description 118
- 238000004062 sedimentation Methods 0.000 claims abstract description 73
- 238000009826 distribution Methods 0.000 claims abstract description 62
- 238000005273 aeration Methods 0.000 claims abstract description 52
- 239000000945 filler Substances 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
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- 239000003344 environmental pollutant Substances 0.000 description 3
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- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
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- 244000144974 aquaculture Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- 239000002028 Biomass Substances 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biological Treatment Of Waste Water (AREA)
Abstract
The circulating water treatment device of the industrial circulating water culture system comprises an inclined tube sedimentation tank, a primary HBR reaction tank, a secondary HBR reaction tank and a communicating pipe, wherein the communicating pipe is arranged between the inclined tube sedimentation tank and the primary HBR reaction tank and between the primary HBR reaction tank and the secondary HBR reaction tank; the inclined tube sedimentation tank is internally composed of a mud bucket, a water distribution area, an inclined tube area and a clear water area from bottom to top, wherein a water inlet system and a water outlet system are respectively arranged at the two sides of the top of the inclined tube sedimentation tank along the long edge, a mud discharging tube is arranged below the mud bucket, an inclined tube bracket is arranged between the water distribution area and the inclined tube area, and an inclined tube is arranged above the inclined tube bracket; each stage of HBR reaction tank is composed of an aeration system, a water distribution system, a filler area, a water outlet collection system and a filler interception system from bottom to top, wherein the filler area is filled with suspended filler, and the tail part of the water outlet collection system of the second stage of HBR reaction tank is connected into the culture tank through a water outlet pipe main pipe. The device has small occupied area, high sewage treatment efficiency, low running cost and high automation degree.
Description
Technical field:
the utility model belongs to the technical field of sewage treatment, and particularly relates to a circulating water treatment process and device of an industrial circulating water culture system.
The background technology is as follows:
the conventional fish pond culture and industrial circulating water culture technology exists in the conventional aquaculture technology. The traditional pond culture mode is to increase the yield of fish by means of a large amount of artificial feeding and organic feed application. Therefore, the pollutants such as residual baits and feces can be decomposed and converted in water, so that a large amount of dissolved oxygen is consumed, normal growth of aquatic products can be inhibited, and the bait coefficient is continuously increased. Wherein ammonia gas generated by the oxidation of organic matters and nitrite converted from the ammonia gas are main factors for inducing aquatic product diseases, so that the growth of the aquatic products is limited. In addition, the balance of regional water environment can be destroyed, so that the water environment condition is continuously worsened, the water body is eutrophicated, biological resources are seriously destroyed, and the quality of excellent varieties is degraded, so that the survival and the development of the aquaculture industry are directly endangered.
Compared with the traditional fishpond culture technology, the industrial culture technology has the advantages of high yield per unit area (water body), short production period, low bait coefficient, small occupied area, investment saving, easy management, small waste and wastewater discharge, small influence by the outside air temperature, small water resource consumption and the like. The development of the water-saving harmless industrial circulating water fish culture technology is an effective scheme for solving the problems of water and soil resource shortage and environmental pollution reduction, and can improve the yield and quality of aquatic products.
The industrial circulating water culture system is characterized in that wastewater generated in a culture pond is treated by a series of water treatment units and then recycled, so that the quality of culture water body always meets corresponding standards, the industrial circulating water culture system is a key factor for guaranteeing the quality of aquatic products, a novel circulating water treatment technology is developed by combining a sewage treatment technology, the cost of circulating water treatment is reduced, on one hand, the culture cost of the aquatic products can be fundamentally reduced, and on the other hand, the quality of the aquatic products can be improved.
The utility model comprises the following steps:
the utility model discloses a circulating water treatment device for an industrial circulating water culture system, which has the advantages of small occupied area, high sewage treatment efficiency, low running cost, small management difficulty and high automation degree.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a circulating water treatment device of an industrial circulating water culture system, which comprises an inclined tube sedimentation tank, an HBR reaction tank and a communicating pipe, wherein the inclined tube sedimentation tank and the HBR reaction tank are arranged in parallel to form an integrated device, the HBR reaction tank comprises a primary HBR reaction tank and a secondary HBR reaction tank, and the communicating pipe is arranged between the inclined tube sedimentation tank and the primary HBR reaction tank and between the primary HBR reaction tank and the secondary HBR reaction tank; the inclined tube sedimentation tank consists of a mud bucket, a water distribution area, an inclined tube area and a clear water area from bottom to top, wherein the top of the inclined tube sedimentation tank is provided with a water inlet system along the length direction of the tank, one side of the inclined tube sedimentation tank, which is far away from the HBR reaction tank, is provided with a water outlet system, the water inlet system is connected with a water inlet pipeline, a mud discharging tube is arranged below the mud bucket at the bottom of the inclined tube sedimentation tank, an inclined tube bracket is arranged between the water distribution area and the inclined tube area in the inclined tube sedimentation tank, the inclined tube bracket is fixed on the peripheral inner wall of the inclined tube sedimentation tank body, and an inclined tube is arranged above the inclined tube bracket; the structure of the primary HBR reaction tank is the same as that of the secondary HBR reaction tank, each of the primary HBR reaction tanks is composed of an aeration system, a water distribution system, a filler area, a water outlet collection system and a filler interception system from bottom to top, the aeration system comprises an aeration main pipe and an aeration disc fixedly arranged at the bottom of the HBR reaction tank, the aeration disc comprises a plurality of aeration air distribution pipes, the aeration air distribution pipes are communicated with the aeration main pipe outside the HBR reaction tank, the water distribution system comprises a water inlet main pipe and a plurality of water distribution pipes fixed at the bottom of the HBR reaction tank, the filler area is filled with suspended filler, and the tail of the water outlet collection system of the secondary HBR reaction tank is connected into the culture tank through a water outlet pipe main pipe.
The primary HBR reaction tank and the secondary HBR reaction tank form a tank body with the same size as the inclined tube sedimentation tank, and the two tank bodies are placed in parallel to form a square integrated device; the mud bucket of the inclined tube sedimentation tank is funnel-shaped, the bucket surface inclination angle is not less than 60 degrees, two mud buckets are symmetrically arranged, and each mud bucket can discharge mud independently.
The water inlet system of the inclined tube sedimentation tank is arranged above the water distribution area and fixed on the inclined tube support, the water inlet system comprises a water inlet channel, a flat weir and a water inlet baffle plate, the water inlet baffle plate is arranged along one long side of the inclined tube sedimentation tank, the water inlet baffle plate is vertically and fixedly arranged on the inclined tube support and close to the inclined tube area, a certain space is reserved between the water inlet baffle plate and the inclined tube sedimentation Chi Changbian tank wall to form a water inlet, the flat weir is arranged at the top of the water inlet baffle plate, and the water inlet channel is arranged on one side of the upper part of the water inlet baffle plate and above the inclined tube area; the water outlet system of the inclined tube sedimentation tank is arranged above the inclined tube area and comprises a first water outlet channel and a water outlet triangular weir plate, the water outlet triangular weir plate is arranged at the top of one side of the first water outlet channel, which is far away from the tank wall of the inclined tube sedimentation tank, and the first water outlet channel is arranged along the long side of the opposite side of the inclined tube sedimentation tank, which is opposite to the water inlet channel.
The communicating pipe comprises a first communicating pipe and a second communicating pipe, the first communicating pipe is arranged between a first water outlet channel at the right end of a water outlet system of the inclined tube sedimentation tank and a water distribution system of the primary HBR reaction tank, and the second communicating pipe is arranged between a second water outlet channel of the primary HBR reaction tank and the water distribution system of the secondary HBR reaction tank; the first communicating pipe is L-shaped, the second communicating pipe is I-shaped, and square water distribution holes are added on the second communicating pipe.
The inclined tube is uniformly and symmetrically arranged above the inclined tube bracket, the installation inclination angle is 60 degrees, and the length of the inclined tube is 1m.
Uniformly perforating the water distribution pipes of the water distribution system at equal intervals at two sides obliquely downwards at 45 degrees; the aeration system is positioned below the water distribution pipe, the center of the aeration gas distribution pipe of the aeration system is uniformly perforated downwards, and the aeration gas distribution pipe is made of UPVC or stainless steel.
The HBR reaction tank is characterized in that a water outlet collecting system is arranged at the periphery of a certain height of the top of the HBR reaction tank body, the water outlet collecting system comprises a second water outlet channel and triangular weir plates, the triangular weir plates are arranged at the top of the second water outlet channel, filler intercepting systems are arranged at the inner side of the second water outlet channel and the inner side of the HBR reaction tank body, each filler intercepting system comprises a filler intercepting baffle and a filler intercepting baffle supporting structure, each filler intercepting baffle consists of four stainless steel plates with uniform holes and the same size, each filler intercepting baffle supporting structure is located below each filler intercepting baffle and consists of angle steel and U-shaped steel.
The filler area is filled with suspended filler with stronger hydrophilicity and lower density.
The water outlet pipe main pipe is connected with a water outlet collecting system of the secondary HBR reaction tank, a branch pipe is arranged on the water outlet pipe main pipe, a branch pipe electric gate valve is arranged on the branch pipe, and a main pipe electric gate valve is arranged on the water outlet pipe main pipe.
The aeration main pipe of the primary HBR reaction tank is provided with a second electric ball valve, and the aeration main pipe of the secondary HBR reaction tank is provided with a first electric ball valve.
Compared with the prior art, the utility model has the following beneficial effects:
1. the inclined tube sedimentation tank of the utility model utilizes the principle of shallow sedimentation, improves the surface load of the sedimentation tank, strengthens the sedimentation effect of the sedimentation tank, and has small occupied area and less investment compared with other sedimentation tanks.
2. The HBR reaction tank is of a fixed bed biomembrane structure with high filling rate, microorganisms adhere to and grow on the surface of the filler, separation of sludge age and hydraulic retention time can be achieved, growth of nitrifying bacteria with longer generation time is facilitated, a biological system mainly comprising the nitrifying bacteria is formed, the nitrifying rate is improved, meanwhile, due to the fact that the number of microorganism types in the biomembrane is large, biological food chains are long, organic matters are thoroughly decomposed, and the whole HBR reaction tank is good in treatment effect.
3. The utility model forms a fixed bed by improving the filling rate (60% -90%) of the filler and optimizing the operation parameters, the flow state in the HBR reaction tank is basically plug flow type, the substrate transmission rate is improved, the hydraulic retention time is shortened, and meanwhile, the concentration of effluent suspended matters (< 70 mg/L) is reduced by physical filtration, biological adhesion and the like, so that a mud-water separation device is omitted, and the occupied area is greatly saved.
4. The sewage can be normally treated in the flushing stage of the HBR reaction tank, when the biomass reaches a certain degree, the aeration is increased to form a fluidized bed, backwashing is carried out, the sewage still continuously enters the reaction tank as backwash raw water, the water inflow rate is the same as that in the normal operation, the biological film still keeps higher activity in the uniform fluidization state, and the sewage still is normally treated.
5. According to the utility model, flushing water flows back to the front-end inclined tube sedimentation tank for solid-liquid separation, and the biological film fallen from the HBR reaction tank is discharged from the system in the form of sludge in the inclined tube sedimentation tank, so that no external drainage is generated, the water supplementing amount of the system is low, and the process flow is simplified.
6. Compared with the conventional aeration biological filter, the utility model simplifies the backwashing system, does not need to arrange a backwashing water tank, a backwashing water pump, a backwashing fan and the like, and further saves the occupied area.
7. The backwashing frequency and the backwashing time length can be flexibly adjusted according to the actual condition of the quality of the inlet water, and the operation energy consumption is further reduced.
8. The packing filled in the HBR reaction tank is novel light open structure packing, has large specific surface area, provides sufficient space for microorganism growth, has high film forming speed and low backwashing energy consumption.
9. The whole device has less electrical equipment, no medicine adding and lower operation cost.
In conclusion, the system can normally operate when the HBR reaction tank is flushed, a back flushing system is not needed, flushing water is directly introduced into the front-end inclined tube sedimentation tank, the process flow is simplified, and the system has the advantages of small occupied area, high sewage treatment efficiency, low operation cost, low management difficulty and high automation degree.
Description of the drawings:
FIG. 1 is a bottom plan view of the present utility model;
FIG. 2 is a top plan view of the present utility model;
FIG. 3 is a schematic plan view of an HBR reaction tank aeration system of the present utility model;
FIG. 4 is a schematic longitudinal cross-sectional view of a down tube sedimentation tank of the present utility model;
FIG. 5 is a schematic cross-sectional view of a down tube sedimentation tank of the present utility model;
FIG. 6 is a schematic view of a longitudinal cross section of an HBR reaction cell of the present utility model;
fig. 7 is a partial enlarged view of I of fig. 6.
Reference numerals in the drawings:
the device comprises a 1-inclined tube sedimentation tank, a 2-primary HBR reaction tank, a 3-secondary HBR reaction tank, a 4-mud bucket, a 5-water distribution area, a 6-inclined tube area, a 7-clear water area, an 8-water inlet channel, a 9-flat weir, a 10-water inlet baffle, an 11-inclined tube bracket, a 12-first water outlet channel, a 13-water outlet triangular weir plate, a 14-first communication pipe, a 15-aeration system, a 16-water distribution system, a 17-packing area, a 18-water outlet collection system, a 19-packing interception baffle, a 20-packing interception baffle support structure, a 21-second water outlet channel, a 22-triangular weir plate, a 23-square water distribution hole, a 24-second communication pipe, a 25-water outlet main pipe, a 26-branch pipe, a 27-branch pipe electric gate valve, a 28-main electric gate valve, a 29-first electric ball valve, a 30-second electric ball valve, a 31-aeration main pipe, a 32-mud pipe and a 33-water inlet pipeline.
The specific embodiment is as follows:
the present utility model will be further described with reference to the following specific embodiments, which are intended to be illustrative of the principles of the present utility model and not in any way limiting, nor will the same or similar techniques be used in connection with the present utility model beyond the scope of the present utility model.
Referring to fig. 1-7, the utility model provides a circulating water treatment device of an industrial circulating water culture system, which comprises an inclined tube sedimentation tank 1, an HBR reaction tank and a communicating tube, wherein the HBR reaction tank consists of two stages of HBR reaction tanks, namely a primary HBR reaction tank 2 and a secondary HBR reaction tank 3. The primary HBR reaction tank 2 and the secondary HBR reaction tank 3 form a tank body which is the same as the inclined tube sedimentation tank 1 in size, and the two tank bodies are placed in parallel to form a square integrated device.
The inclined tube sedimentation tank 1 is composed of a mud bucket 4, a water distribution area 5, an inclined tube area 6 and a clear water area 7 from bottom to top, wherein the top of the inclined tube sedimentation tank 1 is connected with a water inlet system on one side far away from the HBR reaction tank along the long direction of the tank, and is connected with a water outlet system on one side close to the HBR reaction tank. The water inlet system is arranged above the water distribution area 5 and fixed on the inclined tube support 11, the water inlet system comprises a water inlet channel 8, a flat weir 9 and a water inlet baffle 10, the water inlet baffle 10 is arranged along one side long edge of the inclined tube sedimentation tank 1, the water inlet baffle 10 is vertically and fixedly arranged on the inclined tube support 11 and is close to the inclined tube area 6, a certain space is reserved between the water inlet baffle 10 and the long edge tank wall of the inclined tube sedimentation tank 1 to form a water inlet, the flat weir 9 is arranged at the top of the water inlet baffle 10, the water inlet channel 8 is arranged on one side of the upper part of the water inlet baffle 10 and above the inclined tube area 6, and the water inlet channel 8 is connected with a water inlet pipeline 33. The water outlet system is arranged above the inclined tube region 6 and comprises a first water outlet channel 12 and a water outlet triangular weir plate 13, wherein the water outlet triangular weir plate 13 is arranged at the top of one side of the first water outlet channel 12, which is far away from the wall of the inclined tube sedimentation tank 1, and the first water outlet channel 12 is arranged along the long side of the opposite side of the inclined tube sedimentation tank 1, which is opposite to the water inlet channel 8. Two mud hoppers 4 are symmetrically arranged at the bottom in the inclined tube sedimentation tank 1, each mud hopper 4 can be used for discharging mud independently, each mud hopper 4 is funnel-shaped, the inclination angle of the hopper surface is not less than 60 degrees, a mud discharging tube 32 is arranged below the mud hopper 4, and the mud is conveyed to a mud area. Inclined tube brackets 11 are arranged between the water distribution area 5 and the inclined tube area 6 in the inclined tube sedimentation tank 1, the inclined tube brackets 11 are fixed on the inner wall around the tank body of the inclined tube sedimentation tank 1, inclined tubes are arranged above the inclined tube brackets 11, the length of each inclined tube is 1m, the inclined tubes are uniformly and symmetrically arranged, and the installation inclination angle is 60 degrees.
The HBR reaction tank is of a fixed bed biomembrane structure with high filling rate, and consists of a primary HBR reaction tank 2 and a secondary HBR reaction tank 3, wherein the primary HBR reaction tank 2 and the secondary HBR reaction tank 3 are identical in structure, and each of the primary HBR reaction tanks consists of an aeration system 15, a water distribution system 16, a filler zone 17, a water outlet collection system 18 and a filler interception system from bottom to top. The water distribution system 16 at the bottom comprises a main water inlet pipe and a plurality of water distribution pipes fixed at the bottom of the HBR reaction tank, wherein the water distribution pipes are uniformly perforated at 45 degrees downwards at equal intervals on two sides in an inclined manner so as to ensure uniform water distribution in the HBR reaction tank. The aeration system 15 is located below the water distribution system 16, the aeration system 15 comprises an aeration main pipe 31 and an aeration disc fixedly arranged at the bottom of the HBR reaction tank, the aeration disc is composed of a plurality of aeration air distribution pipes, the aeration air distribution pipes are communicated with the aeration main pipe 31 outside the HBR reaction tank, the aeration air distribution pipes are generally composed of UPVC perforated air distribution pipes or stainless steel perforated air distribution pipes, and the centers of the aeration air distribution pipes are uniformly perforated downwards. The filler area 17 is filled with suspended filler with stronger hydrophilicity and lower density, and the surface of the suspended filler forms a biological film under the scouring action of water flow, and the water quality is purified under the metabolism action of microorganisms. The periphery is equipped with the play water collecting system 18 under HBR reaction tank cell body top certain height, goes out water collecting system 18 and includes second water outlet channel 21, triangle weir plate 22, and second water outlet channel 21 top is equipped with triangle weir plate 22. The gap part inside the second water outlet channel 21 and the HBR reaction tank body is provided with a filler interception system for preventing filler from entering the next treatment stage along with water flow, the filler interception system comprises a filler interception baffle 19 and a filler interception baffle support structure 20, the filler interception baffle 19 is composed of four stainless steel plates with uniform holes and the same size, the filler interception baffle support structure 20 is positioned below the filler interception baffle 19 and is composed of angle steel and U-shaped steel. The tail part of a second water outlet channel 21 of the water outlet collecting system 18 of the secondary HBR reaction tank 3 is connected into the culture tank through a water outlet pipe main pipe 25, and the water outlet of the secondary HBR reaction tank 3 is collected by the second water outlet channel 21 and then is conveyed into the culture tank from the tail part through the water outlet pipe main pipe 25.
The communicating pipe comprises a first communicating pipe 14 and a second communicating pipe 24, the first communicating pipe 14 is arranged between the right end of a first water outlet channel 12 of the inclined tube sedimentation tank 1 and a water distribution system 16 of the primary HBR reaction tank 2, and the second communicating pipe 24 is arranged between a second water outlet channel 21 of the primary HBR reaction tank 2 and the water distribution system 16 of the secondary HBR reaction tank 3; the first communicating pipe 14 is L-shaped, the second communicating pipe 24 is I-shaped, and square water distribution holes 23 are added on the second communicating pipe 24.
The aeration pipe 31 of the HBR reaction tank is provided with 2 electric ball valves, namely a first electric ball valve 29 on the aeration main pipe 31 of the secondary HBR reaction tank 3 and a second electric ball valve 30 on the aeration main pipe 31 of the primary HBR reaction tank 2, the aeration intensity of the two-stage HBR reaction tank is respectively controlled, the aeration intensity is increased during back flushing to fluidize the filler, the gap between the fillers is increased, pollutants enter sewage, and the pollutants enter the inclined tube sedimentation tank 1 along with water flow.
The water outlet main pipe 25 is connected with the water outlet collecting system 18 of the secondary HBR reaction tank 3, a branch pipe 26 is arranged on the water outlet main pipe 25, a branch pipe electric gate valve 27 is arranged on the branch pipe 26, a main pipe electric gate valve 28 is arranged on the water outlet main pipe 25, the branch pipe electric gate valve 27 on the branch pipe 26 is closed in a normal operation mode, the main pipe electric gate valve 28 on the water outlet main pipe 25 is opened, and water flow finally enters the culture tank; under the flushing mode, the electric gate valve 27 of the upper branch pipe of the branch pipe 26 is opened, the electric gate valve 28 of the main pipe is closed, water flows back to the inclined pipe sedimentation tank 1 at the front end to enter the next cycle of mud-water separation, and the biological film fallen from the HBR reaction tank is discharged from the system in the inclined pipe sedimentation tank 1 through the mud discharge pipe 32. The growth process of the biological film of the HBR reaction tank corresponds to the conversion of the operation mode of the HBR reaction tank, and when the biological film is aged, the biological film is converted into a flushing mode from a normal operation mode, wherein the difference between the aeration intensity of the HBR reaction tank and the switching of the water outlet pipe is that. The HBR reaction tank filler has larger filling degree, large opening of the filler, physical interception and biological adsorption on suspended impurities in the tank, and stronger sewage receiving capability, so that tail water can reach the standard without mud-water separation in a normal operation mode.
The flat weir 9, the water outlet triangular weir plate 13 and the triangular weir plate 22 are all toothed plate structures.
When the circulating water treatment device is used, circulating water automatically flows into the water inlet channel 8 through the water inlet pipeline 33, turns over the flat weir 9, and downwards enters the water distribution area 5 below the inclined tube under the action of the water inlet baffle 10 to complete uniform water distribution; circulating water flows upwards through the inclined pipe area 6, impurities in the circulating water are deposited on the inclined pipe wall and slide downwards to the bottom mud bucket 4, and are transported to a mud area by the mud pipe 32 at the bottom of the mud bucket 4; circulating water flows upwards into the clear water zone 7, is collected by the water outlet triangular weir plate 13 and enters the first water outlet channel 12, and then enters the primary HBR reaction tank 3 through the first communication pipe 14 arranged at the right end of the first water outlet channel 12, namely, the circulating water is precipitated and separated by the inclined tube sedimentation tank 1 and then enters the perforated water distribution system 16 at the bottom of the primary HBR reaction tank 2 through the first communication pipe 14. The effluent of the primary HBR reaction tank 2 enters a square water distribution hole 23 of the secondary HBR reaction tank from the tail of the tank body after being collected, and enters a water distribution system 16 of the secondary HBR reaction tank 3 through a second communicating pipe 24 below the square water distribution hole 23. The circulating water flow treated by the secondary HBR reaction tank 3 flows back to the front-end inclined tube sedimentation tank 1 to enter the next circulating mud-water separation, and the biological film fallen off by the HBR reaction tank is discharged from the system in the inclined tube sedimentation tank 1 through a mud discharge pipe 32. The sedimentation tank adopts the shallow tank theory, so that the interception sedimentation speed is reduced, and the sedimentation efficiency is improved.
The HBR process has the advantages of a biomembrane process and an activated sludge process, the membrane structure is respectively a biomembrane, an attached water layer and a flowing water layer from inside to outside, and nutrient substances in sewage are transferred from outside to inside, so that the metabolism of microorganisms is ensured. After the formation and maturation of the biofilm, the biofilm is thickened continuously along with the continuous proliferation of microorganisms, and after the biofilm reaches a certain thickness, the deep part of the inner side, which cannot be penetrated by oxygen, is converted into an anaerobic state to form an anaerobic film, so that the biofilm is converted into an aerobic and anaerobic double-layer film, the microorganisms in the aerobic layer perform ammoniation, nitrification and carbonization, and the anaerobic layer performs anaerobic respiration to produce gases such as ammonia, sulfur dioxide and the like and escape outwards. The metabolic products of the anaerobic layer inevitably permeate the aerobic layer in the process of escaping outwards, and the ecological system of the aerobic layer is destroyed, so that the ecological relationship between the aerobic membrane and the anaerobic membrane is unbalanced. The continuous escape of the gas in the anaerobic membrane weakens the adhesive force between the biological membrane and the surface of the filler, and the biological membrane is the aged biological membrane, so that the aeration intensity is increased, and the biological membrane is peeled off from the surface of the filler under the co-flushing of water flow and air flow and enters the sewage.
Claims (10)
1. An industrial circulating water cultivation system circulating water treatment device is characterized in that: the treatment device comprises an inclined tube sedimentation tank (1), an HBR reaction tank and a communicating pipe, wherein the inclined tube sedimentation tank (1) and the HBR reaction tank are arranged in parallel to form an integrated device, the HBR reaction tank comprises a primary HBR reaction tank (2) and a secondary HBR reaction tank (3), and the communicating pipe is arranged between the inclined tube sedimentation tank (1) and the primary HBR reaction tank (2) and between the primary HBR reaction tank (2) and the secondary HBR reaction tank (3); the inclined tube sedimentation tank (1) is internally formed by a mud bucket (4), a water distribution area (5), an inclined tube area (6) and a clear water area (7) from bottom to top, a water inlet system is arranged at one side, far away from the HBR reaction tank, of the top of the inclined tube sedimentation tank (1) along the long direction of the tank, a water outlet system is arranged at one side, close to the HBR reaction tank, of the inclined tube sedimentation tank, the water inlet system is connected with a water inlet pipeline (33), a mud discharging pipe (32) is arranged below the mud bucket (4) in the inclined tube sedimentation tank (1), inclined tube brackets (11) are arranged between the water distribution area (5) and the inclined tube area (6) in the inclined tube sedimentation tank (1), and the inclined tube brackets (11) are fixed on the peripheral inner wall of the tank body of the inclined tube sedimentation tank (1), and inclined tubes are arranged above the inclined tube brackets (11); the structure of the primary HBR reaction tank (2) is the same as that of the secondary HBR reaction tank (3), each of the primary HBR reaction tanks is internally provided with an aeration system (15), a water distribution system (16), a filler area (17), a water outlet collection system (18) and a filler interception system from bottom to top, the aeration system (15) comprises an aeration main pipe (31) and an aeration disc fixedly arranged at the bottom of the HBR reaction tank, the aeration disc comprises a plurality of aeration air distribution pipes, the aeration air distribution pipes are communicated with the aeration main pipe (31) outside the HBR reaction tank, the water distribution system (16) comprises a water inlet main pipe and a plurality of water distribution pipes fixed at the bottom of the HBR reaction tank, the filler area (17) is filled with suspended filler, and the tail part of the water outlet collection system (18) of the secondary HBR reaction tank (3) is connected into the culture tank through a water outlet pipe main pipe (25).
2. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the primary HBR reaction tank (2) and the secondary HBR reaction tank (3) form a tank body with the same size as the inclined tube sedimentation tank (1), and the two tank bodies are placed in parallel to form a square integrated device; the mud hoppers (4) of the inclined tube sedimentation tank (1) are funnel-shaped, the inclination angle of the hopper surfaces is not smaller than 60 degrees, two mud hoppers (4) are symmetrically arranged, and each mud hopper (4) can discharge mud independently.
3. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the water inlet system of the inclined tube sedimentation tank (1) is arranged above the water distribution area (5) and fixed on the inclined tube support (11), the water inlet system comprises a water inlet channel (8), a flat weir (9) and a water inlet baffle (10), the water inlet baffle (10) is arranged along one long side of the inclined tube sedimentation tank (1), the water inlet baffle (10) is vertically and fixedly arranged on the inclined tube support (11) and close to the inclined tube area (6), a space is reserved between the water inlet baffle (10) and the long side tank wall of the inclined tube sedimentation tank (1) to form a water inlet, the flat weir (9) is arranged at the top of the water inlet baffle (10), and the water inlet channel (8) is arranged on one side of the upper part of the water inlet baffle (10) and above the inclined tube area (6); the water outlet system of the inclined tube sedimentation tank (1) is arranged above the inclined tube zone (6) and comprises a first water outlet channel (12) and a water outlet triangular weir plate (13), wherein the water outlet triangular weir plate (13) is arranged at the top of one side of the first water outlet channel (12) away from the tank wall of the inclined tube sedimentation tank (1), and the first water outlet channel (12) is arranged along the long side of the opposite side of the inclined tube sedimentation tank (1) where the water inlet channel (8) is opposite.
4. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the communicating pipe comprises a first communicating pipe (14) and a second communicating pipe (24), the first communicating pipe (14) is arranged between the right end of the water outlet system of the inclined tube sedimentation tank (1) and the water distribution system (16) of the primary HBR reaction tank (2), and the second communicating pipe (24) is arranged between the second water outlet channel (21) of the primary HBR reaction tank (2) and the water distribution system (16) of the secondary HBR reaction tank (3); the first communicating pipe (14) is L-shaped, the second communicating pipe (24) is I-shaped, and square water distribution holes (23) are formed in the second communicating pipe (24).
5. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the inclined tube is uniformly and symmetrically arranged above the inclined tube bracket (11), the installation inclination angle is 60 degrees, and the length of the inclined tube is 1m.
6. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the water distribution pipes of the water distribution system (16) are uniformly provided with holes at 45 degrees downwards in an equidistant and oblique way; the aeration system (15) is positioned below the water distribution pipe, the center of the aeration gas distribution pipe of the aeration system (15) is uniformly perforated downwards, and the aeration gas distribution pipe is made of UPVC or stainless steel.
7. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the HBR reaction tank is characterized in that a water outlet collecting system (18) is arranged on the periphery of the upper portion of the HBR reaction tank body, the water outlet collecting system (18) comprises a second water outlet channel (21) and a triangular weir plate (22), the triangular weir plate (22) is arranged at the top of the second water outlet channel (21), a filler intercepting system is arranged on the inner side of the second water outlet channel (21) and the gap portion of the inner side of the HBR reaction tank body, the filler intercepting system comprises a filler intercepting baffle (19) and a filler intercepting baffle supporting structure (20), the filler intercepting baffle (19) is composed of four stainless steel plates with uniform holes and the same size, and the filler intercepting baffle supporting structure (20) is located below the filler intercepting baffle (19) and is composed of angle steel and U-shaped steel.
8. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the filler region (17) is filled with suspended filler with strong hydrophilicity and low density.
9. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the water outlet pipe main pipe (25) is connected with the water outlet collecting system (18) of the secondary HBR reaction tank (3), a branch pipe (26) is arranged on the water outlet pipe main pipe (25), a branch pipe electric gate valve (27) is arranged on the branch pipe (26), and a main pipe electric gate valve (28) is arranged on the water outlet pipe main pipe (25).
10. The circulating water treatment device of the industrial circulating water culture system, according to claim 1, is characterized in that: the aeration main pipe (31) of the primary HBR reaction tank (2) is provided with a second electric ball valve (30), and the aeration main pipe (31) of the secondary HBR reaction tank (3) is provided with a first electric ball valve (29).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322051862.4U CN220642772U (en) | 2023-07-31 | 2023-07-31 | Circulating water treatment device of industrial circulating water culture system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322051862.4U CN220642772U (en) | 2023-07-31 | 2023-07-31 | Circulating water treatment device of industrial circulating water culture system |
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