CN114291970A - Mariculture tail water treatment system - Google Patents
Mariculture tail water treatment system Download PDFInfo
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- CN114291970A CN114291970A CN202111632797.3A CN202111632797A CN114291970A CN 114291970 A CN114291970 A CN 114291970A CN 202111632797 A CN202111632797 A CN 202111632797A CN 114291970 A CN114291970 A CN 114291970A
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Abstract
The invention discloses a mariculture tail water treatment system which comprises a solid-liquid separation device, an air floatation solidifying device, a regulating tank, an aerobic tank, a facultative tank, an anaerobic tank and a membrane treatment tank, wherein a tail water inlet is formed in the lower part of the solid-liquid separation device, a filtered water outlet is formed in the upper part of the solid-liquid separation device, a sewage discharge outlet is formed in the bottom of the solid-liquid separation device, a filtered water inlet is formed in the lower part of the air floatation solidifying device, the filtered water inlet is connected with the filtered water outlet through a pipeline, a water outlet is formed in the middle of the air floatation solidifying device, the water outlet is connected with the regulating tank through a pipeline, and the regulating tank, the aerobic tank, the facultative tank, the anaerobic tank and the membrane treatment tank are connected through pipelines. The invention carries out combined purification treatment on the tail water by means of filtration, air flotation, microbial purification and the like, has simple equipment, is not easy to block, runs stably, has low energy consumption, does not need to add various medicaments, has large treatment capacity and low treatment cost, and opens up a new direction for the efficient treatment and large-scale application of the culture tail water.
Description
Technical Field
The invention relates to the technical field of mariculture tail water, in particular to a mariculture tail water treatment system.
Background
Greenhouse cultivation is an important cultivation mode in the Zhoushan and is one of modes with high tail water discharge, and cultivation tail water generated in the aquaculture process is seriously polluted and has large quantity. The culture tail water contains granular solid waste, dissolved metabolites, dissolved nutrient salts, antimicrobial agents, drug residues and the like from animal excrement and feed, and if the culture tail water is directly discharged into the sea without being treated, the culture tail water can cause water body deterioration and pathogen transmission, seriously enable offshore water areas to be eutrophicated, destroy the ecological balance of the water bodies and seriously affect the marine ecological environment. Therefore, in order to solve the problem of water environment pollution caused by the seawater aquaculture industry, the exploration of the ecological purification technology of the tail water of greenhouse culture is very key.
For example, chinese patent application publication No. CN113788591A, published 2021, 12 months and 14 days, discloses a mariculture tail water treatment system, comprising: a shallow sedimentation tank, a microorganism directional conversion tank, an electric floating treatment system and a sludge drying tank; the shallow sedimentation tank comprises a tank body and at least two rows of inclined plate filler layers which are arranged up and down, and the microorganism directional conversion tank comprises a main nitrification chamber for accommodating nitrifying bacteria and a denitrification chamber for accommodating denitrifying bacteria; the electric floatation treatment system comprises an electric floatation generating device capable of generating gas through electrolytic reaction, an aeration deoxidation tank and a filter, and a slag discharge pipe of the electric floatation treatment system is communicated to the sludge drying tank. The mariculture tail water treatment system has the following defects: easy blockage, small treatment capacity, high operation energy consumption, large early investment and unstable operation.
Disclosure of Invention
The invention aims to solve the problems of the mariculture tail water treatment system in the prior art, and provides the mariculture tail water treatment system which is reasonable in structure, large in treatment capacity, stable in operation, high in treatment efficiency, low in operation cost and capable of effectively purifying the mariculture tail water.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a mariculture tail water processing system, includes solid-liquid separation equipment, air supporting removes solid device, equalizing basin, good oxygen pond, facultative tank, anaerobism pond and membrane treatment pond, the solid-liquid separation equipment lower part is equipped with the tail water import, and solid-liquid separation equipment upper portion is equipped with the drainage export, and the solid-liquid separation equipment bottom is equipped with the drain, air supporting removes solid device lower part and is equipped with the drainage import, the drainage import links to each other through the pipeline with the drainage export, and air supporting removes solid device middle part and is equipped with the delivery port, the delivery port passes through the pipeline and links to each other with the equalizing basin, link to each other through the pipeline between equalizing basin, good oxygen pond, facultative tank, anaerobism pond and the membrane treatment pond. The solid-liquid separation device is used for removing solid impurities in the tail water; the air flotation solid removal device is used for removing particle impurities and colloidal impurities with small particle size, which cannot be removed by the solid-liquid separation device, in the tail water; because the tail water is discharged unevenly, the abnormally changed water quality, such as fluctuation of pH in a larger range, overhigh concentration of organic substances and the like, is not beneficial to subsequent treatment, so that an adjusting tank is required to be arranged to mix and dilute different tail water, and the water quality is more stable; the ammonia nitrogen in the tail water can be fully removed through the action of microorganisms in an aerobic tank (nitrification), a facultative tank and an anaerobic tank (denitrification); the membrane treatment tank is used for filtering and clarifying water; the invention reasonably integrates the solid-liquid separation device, the air flotation fixing device, the regulating tank, the aerobic tank, the facultative tank, the anaerobic tank and the membrane treatment tank, carries out combined purification treatment on the tail water by means of filtration, air flotation, microbial purification and the like, has simple equipment, is not easy to block, runs stably, has low energy consumption, does not need to add various medicaments, has large treatment capacity and low treatment cost, and opens up a new direction for the high-efficiency treatment and large-scale application of the culture tail water.
Preferably, the solid-liquid separation device comprises a tank body, a filter cylinder and a lifting plate, wherein a cross partition plate is arranged in the tank body, the cross partition plate divides the internal space of the tank body into a water inlet area and a water outlet area, cross partition plate holes are formed in the cross partition plate, the filter cylinder is arranged in the water outlet area, the lower end of the filter cylinder is provided with an opening and is connected with the cross partition plate holes through a telescopic assembly, the upper end of the filter cylinder is connected with the lifting plate, the lifting plate is connected with a driving mechanism for driving the lifting plate to move up and down, a filter water outlet is formed in the tank body located in the water outlet area, and a tail water inlet is formed in the tank body of the water inlet area. The lifting plate can move up and down under the action of the driving mechanism, the lower end of the filter cartridge is provided with an opening and is connected with the transverse partition plate hole through a telescopic assembly, and the telescopic assembly has a certain telescopic amount, so that the filter cartridge can shake along with the up-and-down movement of the lifting plate, impurities adhered to the inner wall of the filter cartridge are shaken off, and a cleaning effect is achieved; when the filter cartridge is used for filtering, water is fed from bottom to top, so that the intercepted impurities are in the same direction of the settling direction and the water feeding direction, the entrainment of the impurities in the filter cartridge can be reduced, the filtering pressure of the filter cartridge is reduced, and the impurities can be more favorably settled to the bottom.
Preferably, the telescopic assembly comprises an upper connecting flange, a lower connecting flange and a corrugated pipe, the upper end and the lower end of the corrugated pipe are respectively connected with the upper connecting flange and the lower connecting flange, the lower end of the filter cartridge is fixedly connected with the upper connecting flange, the lower connecting flange is fixedly connected with the transverse partition plate and communicated with the transverse partition plate, a plurality of guide rods are arranged on the lower connecting flange at intervals along the circumferential direction, and the guide rods are penetrated with the upper connecting flange and are in sliding fit with the upper connecting flange. The corrugated pipe is preferably a metal corrugated pipe; the guide rod plays a very key role in the invention, plays a role in guiding and positioning, can keep the corrugated pipe vertical all the time, avoids the corrugated pipe from bending and inclining to influence water inlet, and can keep the corrugated pipe to be linearly telescopic.
Preferably, at least one set of mounting seat is arranged on the inner wall of the tank body in the water outlet area, a guide pillar is arranged on the mounting seat, a guide sleeve is arranged at a position above the guide pillar on the lifting plate, the lifting plate and the guide sleeve penetrate through the guide pillar, and a buffer spring is sleeved outside the part, between the lifting plate and the mounting seat, of the guide pillar. The guide sleeve and the guide pillar ensure that the lifting plate can lift linearly; the buffer spring plays a role in buffering, can disperse the gravity borne by the lifting mechanism and can avoid the clamping of the lifting plate.
Preferably, the cartridge filter includes upper end plate and lower end plate, be equipped with the through-hole on the lower end plate, be fixed with a plurality of connecting rods along through-hole circumference interval between upper end plate and the lower end plate, the connecting rod is fixed with outer vaulting ring along the axial interval outward, the connecting rod constitutes braced frame with outer vaulting ring, outer parcel of vaulting ring has the stainless steel wire filter screen. The supporting framework plays a role in coarse filtration, the stainless steel wire filter screen plays a role in fine filtration, the filtering effect and the precision are good, the outer supporting ring can support the stainless steel wire filter screen, and the filtering flux and the filtering efficiency are improved.
Preferably, a back washing port is also arranged on the tank body positioned in the water outlet area. The back flushing port can be connected with a high-pressure gas pipe or a water pipe so as to back flush the filter cartridge and enable impurities on the inner wall of the filter cartridge to fall off and be removed; the back washing can be automatically carried out in combination with the differential pressure sensor.
Preferably, the air floatation solid removal device comprises a box body, a dissolved air water releaser and a slag scraping mechanism, wherein a guide plate, a first baffle plate and a second baffle plate are arranged in the box body, the guide plate, the first baffle plate and the second baffle plate divide the space in the box body into a contact region, a slag removal region, an overflow region and a water outlet region, the contact region is communicated with the upper part of the slag removal region, the slag removal region is communicated with the bottom of the overflow region, the tops of the overflow region and the water outlet region are communicated, a water filtering inlet is arranged on the box body at the lower part of the contact region, a water outlet is arranged on the box body of the water outlet region, the dissolved air water releaser is arranged at the bottom of the contact region, the slag scraping mechanism is arranged at the top of the slag removal region, a slag floating groove is fixed at one side of the slag removal region, a slag discharge port is arranged in the slag removing groove, and a slag blocking component consisting of a plurality of slag blocking plates distributed at intervals is further arranged in the slag removal region, the slag blocking plates are in an inverted V shape, and a separation channel is formed in a gap between the slag blocking plates. The dissolved gas water releaser is connected with a high-pressure dissolved gas tank, and dissolved gas water is stored in the high-pressure dissolved gas tank; the slag scraping mechanism is generally composed of a transmission chain driven by a motor and a gear and a scraper arranged on the transmission chain, and the slag scraping mechanism is a conventional mechanism in the field, so the specific structure of the slag scraping mechanism is not described in detail; the foam blocking assembly is arranged in the slag removing area and consists of a plurality of slag blocking plates which are distributed at intervals and are in an inverted V shape, so that a good slag separating effect is achieved, the inverted V-shaped slag blocking plates can enable water to be concentrated and sink through the separation channel, and floating slag is difficult to sink and is entrained into the water outlet area through the separation channel.
Preferably, a flow stabilizing plate is arranged in the contact area, a flow stabilizing area is formed in the space below the flow stabilizing plate, the water filtering inlet is arranged on a box body positioned in the flow stabilizing area, and a flow stabilizing hole with a large upper hole diameter and a small lower hole diameter is formed in the flow stabilizing plate. The tail water from the water filtering inlet has high flow velocity, and if the tail water is directly contacted with the dissolved air water released from the dissolved air water releaser, the tail water can dissipate small bubbles, so that the floating and deslagging efficiency and effect are influenced. Preferably, the bottom of the aerobic tank is provided with an aeration pipe.
Preferably, the membrane treatment tank is internally provided with an immobilized microbial membrane treatment plate, and each membrane treatment tank is internally provided with every 120-150 m3An immobilized microbial membrane treatment plate is placed, a sludge hopper is arranged at the bottom of the membrane treatment pool, and the sludge hopper is connected with a sludge discharge port. The immobilized microbial film treating plate is attached with halophil (salt tolerant) complex flora mainly comprising halomonas and marinobacter and assisted by candida, bacillus and citrococcus.
Therefore, the invention has the following beneficial effects: the device is reasonably integrated by a solid-liquid separation device, an air flotation de-fixing device, an adjusting tank, an aerobic tank, a facultative tank, an anaerobic tank and a membrane treatment tank, and performs combined purification treatment on the tail water by means of filtration, air flotation, microbial purification and the like, has simple equipment, is not easy to block, runs stably, has low energy consumption, does not need to add various medicaments, has large treatment capacity and low treatment cost, and opens up a new direction for efficient treatment and large-scale application of the breeding tail water.
Drawings
Fig. 1 is a schematic illustration of a connection according to the present invention.
FIG. 2 is a sectional view of the solid-liquid separator of the present invention.
Figure 3 is a schematic view of one construction of the filter cartridge of the present invention.
Fig. 4 is a sectional view taken along the direction B-B of fig. 3.
Fig. 5 is a partially enlarged view of a portion a in fig. 2.
FIG. 6 is a schematic diagram of an internal structure of the air floatation solid removal device.
In the figure: the solid-liquid separation device 1, the air flotation solid removing device 2, the adjusting tank 3, the aerobic tank 4, the facultative tank 5, the anaerobic tank 6, the membrane treatment tank 7, the tail water inlet 8, the filtered water outlet 9, the sewage discharge outlet 10, the filtered water inlet 11, the water outlet 12, the tank body 13, the filter cartridge 14, the lifting plate 15, the diaphragm plate 16, the water inlet area 17, the water outlet area 18, the diaphragm plate hole 19, the upper connecting flange 20, the lower connecting flange 21, the bellows 22, the guide rod 23, the mounting seat 24, the guide post 25, the guide sleeve 26, the buffer spring 27, the upper end plate 28, the lower end plate 29, the through hole 30, the connecting rod 31, the outer support ring 32, the stainless steel wire filter screen 33, the back flushing port 34, the box body 35, the dissolved air water releaser 36, the slag scraping mechanism 37, the guide plate 38, the first baffle 39, the second baffle 40, the contact area 41, the slag removing area 42, the overflow area 43, the water outlet area 44, the slag floating slag groove 45, the slag discharge port 46, the slag blocking plate 47 and the separation channel 48, a steady flow plate 49, a steady flow area 50, a steady flow hole 51, an aeration pipe 52, an immobilized microbial film treatment plate 53, a sludge hopper 54, a sludge discharge port 55 and a driving mechanism 56.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, a mariculture tail water treatment system comprises a solid-liquid separation device 1, an air flotation fixing device 2, a regulating tank 3, an aerobic tank 4, a facultative tank 5, an anaerobic tank 6 and a membrane treatment tank 7, wherein the solid-liquid separation device comprises a tank body 13, a filter cylinder 14 and a lifting plate 15 (shown in fig. 2), a transverse partition plate 16 is arranged in the tank body and divides the internal space of the tank body into a water inlet area 17 and a water outlet area 18, a water filter outlet 9 and a back flush port 34 are arranged on the tank body in the water outlet area, a tail water inlet 8 is arranged on the tank body in the water inlet area, a drain outlet 10 is arranged at the bottom of the tank body, a transverse partition plate hole 19 (shown in fig. 5) is arranged on the transverse partition plate, the filter cylinder is arranged in the water outlet area, the filter cylinder comprises an upper end plate 28 and a lower end plate 29 (shown in fig. 3 and 4), a through hole 30 is arranged on the lower end plate, a plurality of connecting rods 31 are circumferentially fixed between the upper end plate and the lower end plate at intervals, outer bracing rings 32 are fixed outside the connecting rod at intervals along the axial direction, the connecting rod and the outer bracing rings form a supporting framework, two layers of stainless steel wire filter screens 33 with different filter precisions are wrapped outside the outer bracing rings, the upper end plate is connected with a lifting plate, a driving mechanism 56 for driving the lifting plate to move up and down is connected on the lifting plate, the driving mechanism is an air cylinder, a piston rod of the air cylinder penetrates through the tank body and is fixedly connected with the lifting plate,a group of mounting seats 24 are arranged on the inner wall of the tank body in the water outlet area, guide pillars 25 are arranged on the mounting seats, guide sleeves 26 are arranged at positions, above the guide pillars, on the lifting plate, the lifting plate and the guide sleeves penetrate through the guide pillars, buffer springs 27 are sleeved outside parts, between the lifting plate and the mounting seats, of the guide pillars, the telescopic assembly comprises an upper connecting flange 20, a lower connecting flange 21 and a corrugated pipe 22, the upper end and the lower end of the corrugated pipe are respectively connected with the upper connecting flange and the lower connecting flange, the lower end plate is fixedly connected with the upper connecting flange and communicated with the corrugated pipe through holes, the lower connecting flange is fixedly connected with a transverse partition plate and communicated with the transverse partition plate through holes, a plurality of guide rods 23 are arranged on the lower connecting flange at intervals along the circumferential direction, and the upper connecting flanges penetrate through the guide rods and are in sliding fit with the upper connecting flanges; the air flotation solid removing device comprises a box body 35, a dissolved air water releaser 36 and a slag scraping mechanism 37 (shown in figure 6), wherein a guide plate 38, a first baffle 39 and a second baffle 40 are arranged in the box body, the guide plate, the first baffle and the second baffle divide the space in the box body into a contact area 41, a slag removing area 42, an overflow area 43 and a water outlet area 44, the contact area is communicated with the upper part of the slag removing area, the slag removing area is communicated with the bottom of the overflow area, the top of the overflow area and the top of the water outlet area are communicated, a flow stabilizing plate 49 is arranged in the contact area, a stable area 50 is formed in the space below the flow stabilizing plate, a water filtering inlet 11 is arranged on the box body in the stable area, the water filtering inlet is connected with a water filtering outlet through a pipeline, a stable hole 51 with a big upper aperture and a small aperture is arranged on the stable area, the dissolved air water releaser is arranged at the bottom of the contact area, the slag scraping mechanism is arranged at the top of the slag removing area, the slag scraping mechanism comprises a transmission chain driven by a motor and a gear and a scraper arranged on the transmission chain, a scum groove 45 is fixed on one side of the first baffle plate positioned in a deslagging area, a scum outlet 46 is arranged in the scum groove, a foam blocking assembly consisting of a plurality of slag blocking plates 47 distributed at intervals is also arranged in the deslagging area, the slag blocking plates are inverted V-shaped, a separation channel 48 is formed in a gap between the slag blocking plates, a water outlet 12 is arranged on a box body positioned in a water outlet area, and the water outlet is connected with an adjusting tank through a pipeline; the regulating tank, the aerobic tank, the facultative tank, the anaerobic tank and the membrane treatment tank are connected through pipelines, the bottom of the aerobic tank is provided with an aeration pipe 52, the membrane treatment tank is internally provided with an immobilized microbial membrane treatment plate 53, and every 150m in the membrane treatment tank3Placing a block of immobilizedThe microbial film processing plate is characterized in that a sludge hopper 54 is arranged at the bottom of the film processing pool, and the sludge hopper is connected with a sludge discharge port 55.
The operation method of the invention comprises the following steps: the mariculture tail water is conveyed into a solid-liquid separation device, after being filtered by a filter cylinder, solid impurities are intercepted in the filter cylinder, the filter cylinder can shake through the lifting of a lifting plate, so that the impurities adhered to the inner wall of the filter cylinder can be shaken off, and the filter cylinder can be backwashed by water or air through a backwashing port and is discharged from a sewage discharge port; conveying the filtered tail water into an air floatation solid removal device, reducing the speed of the tail water through a flow stabilizing chamber, contacting small bubbles released by a dissolved gas water releaser in a contact area, adhering suspended and colloidal impurities in the tail water on the bubbles, floating to the water surface along with the bubbles to form floating slag, and scraping the floating slag to a floating slag groove through a slag scraping mechanism and discharging the floating slag through a slag discharge port; and the tail water after deslagging overflows to a water outlet area through an overflow area, is conveyed to an adjusting tank through a water outlet, is treated and discharged through an aerobic tank, a facultative tank, an anaerobic tank and a membrane treatment tank in sequence, and the sludge in a sludge hopper is discharged through a sludge discharge port, so that the whole treatment process is completed.
The method is used for treating the tail water of the prawn greenhouse cultivation in the aquatic farm with the fixed-sea-basin standing in Zhoushan city, and the area of a tail water treatment pool of the farm is 2000m3And detecting the water quality indexes of the aquaculture tail water before and after treatment, wherein the detection results are shown in table 1.
TABLE 1 Water quality index of Tail Water before and after treatment
As can be seen from Table 1, the ammonia nitrogen, total phosphorus and COD in the treated tail water are all obviously reduced, which shows that the invention has good degradation effect on the ammonia nitrogen, total phosphorus and COD in the aquaculture tail water.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. The utility model provides a mariculture tail water processing system, its characterized in that, removes solid-liquid separation equipment (2), equalizing basin (3), aerobic tank (4), facultative tank (5), anaerobism pond (6) and membrane treatment pond (7) including solid-liquid separation equipment (1), air supporting, the solid-liquid separation equipment lower part is equipped with tail water import (8), and solid-liquid separation equipment upper portion is equipped with drainage export (9), and the solid-liquid separation equipment bottom is equipped with drain (10), air supporting removes solid-liquid separation equipment lower part and is equipped with drainage import (11), the drainage import links to each other through the pipeline with the drainage export, and air supporting removes solid-liquid separation equipment middle part and is equipped with delivery port (12), the delivery port passes through the pipeline and links to each other with the equalizing basin, link to each other through the pipeline between equalizing basin, aerobic tank, facultative tank, anaerobism pond and the membrane treatment pond.
2. The mariculture tail water treatment system according to claim 1, wherein the solid-liquid separation device comprises a tank body (13), a filter cylinder (14) and a lifting plate (15), a cross partition plate (16) is arranged in the tank body, the cross partition plate divides the internal space of the tank body into a water inlet area (17) and a water outlet area (18), cross partition plate holes (19) are formed in the cross partition plate, the filter cylinder is arranged in the water outlet area, the lower end of the filter cylinder is opened and is connected with the cross partition plate holes through a telescopic assembly, the upper end of the filter cylinder is connected with the lifting plate, a driving mechanism (56) for driving the lifting plate to move up and down is connected onto the lifting plate, the filter water outlet is arranged on the tank body located in the water outlet area, and the tail water inlet is arranged on the tank body of the water inlet area.
3. The mariculture tail water treatment system according to claim 2, wherein the telescopic assembly comprises an upper connecting flange (20), a lower connecting flange (21) and a corrugated pipe (22), the upper end and the lower end of the corrugated pipe are respectively connected with the upper connecting flange and the lower connecting flange, the lower end of the filter cylinder is fixedly connected with the upper connecting flange, the lower connecting flange is fixedly connected with the diaphragm plate and communicated with the diaphragm plate hole, a plurality of guide rods (23) are arranged on the lower connecting flange at intervals along the circumferential direction, and the upper connecting flange penetrates through the guide rods and is in sliding fit with the upper connecting flange.
4. The mariculture tail water treatment system according to claim 2, wherein at least one set of mounting seats (24) is arranged on the inner wall of the tank body in the water outlet area, guide posts (25) are arranged on the mounting seats, guide sleeves (26) are arranged on the lifting plate at positions above the guide posts, the lifting plate and the guide sleeves are penetrated on the guide posts, and buffer springs (27) are sleeved outside the parts of the guide posts between the lifting plate and the mounting seats.
5. The mariculture tail water treatment system according to claim 2, wherein the filter cartridge comprises an upper end plate (28) and a lower end plate (29), the lower end plate is provided with through holes (30), a plurality of connecting rods (31) are fixed between the upper end plate and the lower end plate at intervals along the circumferential direction of the through holes, outer bracing rings (32) are fixed outside the connecting rods at intervals along the axial direction, the connecting rods and the outer bracing rings form a supporting framework, and stainless steel wire filter screens (33) are wrapped outside the outer bracing rings.
6. The mariculture tail water treatment system according to claim 2, wherein a back washing port (34) is further formed in the tank body in the water outlet area.
7. The mariculture tail water treatment system according to claim 1, wherein the air floatation solid removal device comprises a box body (35), a dissolved air water releaser (36) and a slag scraping mechanism (37), a guide plate (38), a first baffle plate (39) and a second baffle plate (40) are arranged in the box body, the guide plate, the first baffle plate and the second baffle plate divide the space in the box body into a contact area (41), a slag removal area (42), an overflow area (43) and a water outlet area (44), the contact area is communicated with the upper part of the slag removal area, the slag removal area is communicated with the bottom of the overflow area, the tops of the overflow area and the water outlet area are communicated, the filtered water inlet is arranged on the box body at the lower part of the contact area, the water outlet is arranged on the box body of the water outlet area, the dissolved air water releaser is arranged at the bottom of the contact area, the slag scraping mechanism is arranged at the top of the slag removal area, one side that first baffle is located the slagging-off district is fixed with scum groove (45), be equipped with in the scum groove and arrange slag notch (46), still be equipped with the fender foam subassembly that constitutes by a plurality of interval distribution's slag trap (47) in the slagging-off district, the slag trap is "V" font, and the clearance between the slag trap forms separation channel (48).
8. A mariculture tail water treatment system according to claim 7, wherein a steady flow plate (49) is arranged in the contact area, the space below the steady flow plate forms a steady flow area (50), the filtered water inlet is arranged on a box body positioned in the steady flow area, and a steady flow hole (51) with a large aperture and a small aperture is arranged on the steady flow plate.
9. The mariculture tail water treatment system according to claim 1, wherein the bottom of the aerobic tank is provided with an aeration pipe (52).
10. The mariculture tail water treatment system according to claim 1, wherein an immobilized microbial membrane treatment plate (53) is arranged in the membrane treatment tank, and each 120-150 m of the membrane treatment tank is internally provided with the immobilized microbial membrane treatment plate3An immobilized microbial membrane treatment plate is placed, a sludge hopper (54) is arranged at the bottom of the membrane treatment pool, and the sludge hopper is connected with a sludge discharge port (55).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114772853A (en) * | 2022-04-26 | 2022-07-22 | 浙江省舟山市水产研究所 | Water quality control system for high-level pond for penaeus vannamei boone culture |
| CN115594348A (en) * | 2022-10-19 | 2023-01-13 | 浙江省海洋水产研究所（Cn） | Mariculture tail water purification treatment system |
| CN117018714A (en) * | 2023-10-09 | 2023-11-10 | 山东蓝色海洋科技股份有限公司 | Marine aquaculture sewage treatment device |
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