CN210352746U - Thick system of aquaculture fry mark - Google Patents

Abstract

The utility model relates to an aquaculture fry thickening system, which comprises a thickening device, a sedimentation tank, a water pump, a physical filter, a thermostatic device, an oxygenation device, an ultraviolet sterilization device and a biological filter tank which are arranged in sequence along the water flow direction; the water discharging end of the coarse marking device is communicated with the sedimentation tank, and the water inlet end of the coarse marking device is communicated with the biological filter tank. The system is an environment with constant water temperature, sanitary water quality, high dissolved oxygen content of water and stable water flow for crude extraction of the fry; soluble substances in water such as nitrite, ammonia nitrogen and the like are controlled to be safe, and the concentration of pathogenic microorganisms such as bacteria, viruses and the like can be controlled to be in a safe range. Thereby improving the overall survival rate of the fry in the coarse marking stage.

Description

Thick system of aquaculture fry mark

Technical Field

The utility model relates to an aquaculture equipment field especially relates to an aquaculture fry mark thick system.

Background

The fry marking thick is the process from the egg yolk fry just hatched to the growth of the fry to the cun fry, and the fry marking thick is an important stage of the fry breeding process and is also the most serious stage of loss. Because the fry has higher requirement on water quality and is very delicate, the fry has more critical requirements on the aspects of initial feed and the like; therefore, the overall survival rate of the fry is greatly reduced in case of misoperation.

The existing method for marking the thickness of the fresh water fry is generally carried out in a pond by using a purse net, water can be exchanged with the water in the pond at any time during marking, and the water quality inside and outside the purse net is ensured to be the same, so that the stress phenomenon is not easy to generate when the fry is marked to be thick and successfully placed in the pond. However, this way of thickening has obvious disadvantages: 1. the water quality in the pond is easily influenced by factors such as external pollution, weather change and the like, so that the water quality is severely fluctuated, and the survival rate of the fry with thick mark is further influenced; 2. because the pond has a large water body and cannot be operated at constant temperature, the fry cannot be marked thick out of season, and the economic benefit of a farm is seriously influenced; 3. a large amount of organic matters are accumulated in the pond due to long-term culture, and the organic matters are easy to generate harmful chemical substances (such as ammonia nitrogen, nitrite, hydrogen sulfide and the like) and are also easy to breed various pathogenic microorganisms such as viruses, bacteria and the like; the chemical substances and microorganisms are easy to cause the newly hatched fry to be sick or dead, and the overall survival rate of the fry is reduced; 4. some particularly delicate water bloom (such as micropterus salmoides water bloom) can be injured and die when encountering the purse net; 5. in the early stage of thick water bloom of the fry, farmers generally put live plankton such as the newly hatched fairy bugs, rotifers and the like as fry initial feeding. However, since the feeding amount is difficult to be accurately controlled, farmers often feed the fry in an excessive amount in order to ensure the normal growth of the fry. The overfeeding initial baits are deposited at the bottom of the coarse marking area and then die and decay; leading to the growth of large numbers of harmful microorganisms in the target areas. These harmful microorganisms easily infect the fry with viruses, bacteria, etc., thereby causing the fry to be ill or dead. Under the condition that the purse net or the cement pond is thickened in the pond, because the area of the purse net area or the cement pond is large, dead and decayed initial baits are difficult to clean and discharge in time at the bottom of the thickening area, the disease or death of the fry is more serious, and the survival rate of the fry is not high.

Therefore, a special fry marking and thickening system is urgently needed to provide a proper and sanitary marking and thickening environment for the coarse marking and thickening of the fry, and the survival rate of the fry in the marking and thickening stage is further improved.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model aims at: the utility model provides an aquaculture fry mark thick system, this system is for fry mark crude extraction water temperature invariant, water quality health, the high mark thick environment of water dissolved oxygen volume, and then improves the whole survival rate of fry mark thick stage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an aquaculture fry thickening system comprises a thickening device, and a sedimentation tank, a water pump, a physical filter, a constant temperature device, an oxygenation device, an ultraviolet sterilization device and a biological filter tank which are sequentially arranged along the flow direction of a water body; the water discharging end of the coarse marking device is communicated with the sedimentation tank, and the water inlet end of the coarse marking device is communicated with the biological filter tank. After adopting this kind of structure, this system is for fry mark crude extraction water temperature invariant, water quality health, the high mark thick environment of water dissolved oxygen volume, and then improves the whole survival rate of fry mark thick stage.

Preferably, the coarse marking device comprises a coarse marking container, a water inlet pipe and a water outlet pipe; the upper part of the coarse marking container is provided with a water inlet, the bottom of the coarse marking container is provided with a seedling emergence opening and a water outlet, one end of the water inlet pipe penetrates through the water inlet and horizontally extends into the coarse marking container, and one end of the water outlet pipe penetrates through the water outlet and horizontally extends into the coarse marking container; the cross section area of the coarse marking container is gradually reduced from top to bottom along the vertical direction, and the cross section area of the middle part of the coarse marking container is 0.4-0.6 times of the cross section area of the top part. After adopting this kind of structure, mark thick container draws in from top to bottom gradually in vertical direction, and organic matters such as living body plankton that the excessive feeding was thrown something and the excrement and urine that the fry produced sink along the inner wall that marks thick container slope at fry mark thick in-process, can effectual concentrated organic matter, do benefit to the organic matter of discharging. So as to reduce the condition that the fry is sick or dead due to the breeding of harmful microorganisms and further improve the survival rate of the fry.

Preferably, the coarse marking device further comprises a filter screen and a light induction lamp arranged on the inner wall of the top of the coarse marking container, and the filter screen is horizontally arranged on the inner wall above the water outlet of the coarse marking container and below the seedling emergence opening. After the structure is adopted, the coarse marking container is isolated into a fry coarse marking area and an organic matter collecting area by the filter screen, and after the fry coarse marking is finished, the cun fries are transferred into an outer pond or a big pond from a fry emergence opening for subsequent cultivation. The organic matter and water are discharged from the drain port. Under the action of the light induction lamp and the inflow micro-water flow, the fry can be concentrated above the coarse container as much as possible. Can effectively reduce fry and filter screen contact like this to reduce the condition that the fry died because of touching the filter screen.

Preferably, the water inlet pipe is provided with a plurality of nozzles which are arranged along the axial direction of the water inlet pipe; the water outlet pipe is provided with a plurality of small water outlet holes. After adopting this kind of structure, the rivers that the coarse container in during intaking, drainage are guaranteed to the setting of nozzle and play water aperture tend to stable, can effectively reduce because the condition of bruising or death that rivers impact the fry and lead to improve the coarse survival rate of fry by a wide margin.

As a preferred, mark thick device is still including setting up standpipe I and standpipe II in the thick container outside of mark, and the one end of standpipe I is passed through tee bend I and is gone out water piping connection, and the other end passes through tee bend II and is connected with standpipe II, and a port level of tee bend II sets up as the delivery port. After adopting this kind of structure, according to siphon effect principle, can adjust the water level in the thick container of mark through rotating the I angular position of tee bend adjustment standpipe I.

Preferably, the main body of the coarse container is assembled by four rectangular plates; wherein the two plates are oppositely arranged in a V shape in an inclined way, and the included angle is less than 60 degrees; in addition, the two plates are vertically arranged and are respectively connected to two ends of the two plates which are obliquely arranged in a V shape. After adopting this kind of structure, two rectangular panels that the relative slope set up are convenient for collect the organic matter, have increased the volume of whole thick container of mark simultaneously.

Preferably, the inside of the sedimentation tank is provided with a partition board used for dividing the sedimentation tank into a plurality of cells, and the height of the partition board is lower than that of the wall of the sedimentation tank; the clapboard is vertical to the flowing direction of the water body. After the structure is adopted, the water body sequentially flows through each cell of the sedimentation tank, and solid suspended matters in the water body are downwards deposited under the action of gravity in each cell due to slow water flow speed, so that the sedimentation effect is better after multiple times of sedimentation. The processing load of the subsequent physical filter can be effectively reduced, the configuration of the system is reduced, and the cost of the system configuration is further reduced.

Preferably, the bottom of each cell is provided with a base plate which is obliquely arranged; along the direction of flow of the body of water, the mat slopes downward. After adopting this kind of structure, the backing plate slope sets up, and dirty effect of collection is better.

Preferably, a porous biological filter material and probiotics are placed in the biological filter tank. After the structure is adopted, beneficial microorganisms can be easily propagated on the surface of the biological filter material in a high-dissolved-oxygen water environment. The microorganisms continuously reproduce to decompose substances such as ammonia nitrogen, nitrite and the like which are toxic to the fry water.

Preferably, the physical filter is a micro-filter or a sand filter or a bag filter or a protein separator. After adopting this kind of structure, the physics filter filters the tiny particle that the particle diameter is bigger in the water and discharges outside the water. Most organic particles in the water body are discharged out of the water body, so that the organic particles can be prevented from being continuously decomposed into substances such as ammonia nitrogen and nitrite which are toxic to the fry water bloom, and the water quality is more suitable for the healthy growth of the fry water bloom.

In general, the utility model has the advantages as follows:

1. the system is a coarse-marking environment with constant water temperature, sanitary water quality, high dissolved oxygen content in water and stable water flow for coarse-marking of the fry; soluble substances in water such as nitrite, ammonia nitrogen and the like are controlled to be safe, and the concentration of pathogenic microorganisms such as bacteria, viruses and the like can be controlled to be in a safe range. Thereby improving the overall survival rate of the fry in the coarse marking stage.

2. This system adopts constant temperature equipment to carry out the constant temperature to the water and handles, can realize carrying out the fry mark thick in out of season, breaks through certain season limitation, and application scope is wider.

3. The mark thick container draws in from top to bottom gradually in vertical direction, and organic matters such as opening bait that the fish fry mark was thick in-process was overfeed and excrement and urine that the fish fry produced sink along the inner wall that the thick container of mark inclines, can effectual concentrated organic matter, do benefit to the organic matter of discharging. So as to reduce the condition that the fry is sick or dead due to the breeding of harmful microorganisms and further improve the survival rate of the fry.

4. The arrangement of the nozzles and the small water outlet holes ensures that water flow in the thickening container tends to be stable in the water inlet and water outlet processes, and the condition of bruising or death caused by water flow impacting the fry can be effectively reduced, so that the survival rate of thickening the fry is greatly improved.

Drawings

Fig. 1 is a schematic diagram of an embodiment of a fry thickening system.

Fig. 2 is a schematic structural diagram of a thickening apparatus in the embodiment.

Fig. 3 is a right side view of fig. 2.

The reference numbers and corresponding part names in the figures are: 1-standard coarse device, 2-water inlet, 3-water outlet, 4-seedling outlet, 5-sedimentation tank, 6-water pump, 7-physical filter, 8-constant temperature equipment, 9-oxygenation equipment, 10-ultraviolet sterilization equipment, 11-biological filter tank, 12-water inlet pipe, 13-light induction lamp, 14-filter screen, 15-water outlet pipe, 16-vertical plate and 17-inclined plate.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

An aquaculture fry thickening system comprises a thickening device, and a sedimentation tank, a water pump, a physical filter, a constant temperature device, an oxygenation device, an ultraviolet sterilization device and a biological filter tank which are sequentially arranged along the flow direction of a water body; the water outlet pipe of the coarse marking device is communicated to the sedimentation tank, and the water inlet pipe is communicated with the biological filtration tank. The system filters water, is constant in temperature, is oxygenated, is sterilized, is pressurized, provides a water temperature constant, a water quality sanitary and a water body dissolved oxygen high standard crude environment for the standard crude extraction of the fry, and further improves the overall survival rate of the fry in the standard crude stage.

The marking thick device comprises a marking thick container, a water inlet pipe, a water outlet pipe, a filter screen, a light induction lamp, a vertical pipe I and a vertical pipe II. The coarse container is assembled by an upper cover plate and four rectangular plates. Two plates are oppositely arranged in a V-shaped inclined manner, the included angle is 55 degrees, and the other two plates are vertically arranged and are respectively connected to the two ends of the two plates which are arranged in the V-shaped inclined manner; the four plates form a container with an upper opening, and the container is matched with an upper cover plate to form a coarse container. The obliquely arranged plates are called sloping plates, and the vertically arranged plates are called vertical plates. Two risers play the effect of solid thick container of mark simultaneously, mark two swash plates of thick container and make whole thick container of mark draw in gradually from top to bottom in vertical direction, mark the thick in-process at the fry and throw opening bait that feeds excessively and organic matters such as excrement and urine that the fry produced along the inner wall that the thick container of mark inclines sink, can effectual concentrated organic matter, do benefit to the organic matter of discharging. So as to reduce the condition that the fry is sick or dead due to the breeding of harmful microorganisms and further improve the survival rate of the fry. Meanwhile, the structure that only one set of opposite side inclined plates is arranged instead of two sets of opposite side inclined plates enables the whole coarse container to have larger volume.

Two water inlets are arranged at the upper part of the vertical plate at one side, a water outlet is arranged at the lower part of the vertical plate at the other side, and a seedling emergence opening is arranged at the lower part of the vertical plate at the other side and is higher than the water outlet; the water outlet pipe and the two water inlet pipes respectively penetrate through the water outlet and the two water inlet ports and horizontally extend to the inner wall of the vertical plate on the other side.

The water inlet pipe is provided with a plurality of nozzles which are arranged along the axial direction of the water inlet pipe and the spraying directions of the nozzles are staggered. Water enters from the water inlet pipe and is atomized and sprayed out through the nozzle, the contact area of small water drops and air is increased after atomization, and the dissolved oxygen degree of water is further increased. In addition, when the atomized water drops uniformly fall on the water surface in the standard coarse container, the impact force of the water flow on the fry can be almost ignored because the water flows integrally and the total flow is small, and severe water flow cannot be caused. The condition of bruising or death caused by water flow impacting the fry can be effectively reduced, and the survival rate of the fry with thick mark is greatly improved.

The water outlet pipe is provided with a plurality of water outlet holes, water and organic matters are discharged after entering the water outlet pipe through the water outlet holes, the water flow in the thickening container is ensured to tend to be stable in the water discharging process, and the impact of violent water flow on the fry is avoided.

The filter screen level is fixed on the inner wall of mark thick container and is located between the mouth of emerging and the outlet, and the filter screen is kept apart into fry mark thick district and organic matter collecting region with mark thick container, is convenient for discharge organic matter. The filter screen is a nylon screen with the aperture of 0.5mm, and can pass bait organisms such as fairy shrimp, rotifer and the like, but can not pass the fry. And after the fry marking is finished, transferring the fries from the fry emergence opening to an outer pond or a large pond for subsequent culture. The organic matter and water are discharged from the drain port.

The light induction lamps are horizontally arranged on the inner wall of the upper cover plate in rows, are parallel to the water inlet pipes and are positioned between the two water inlet pipes. Due to the natural phototaxis of most fresh water fries, the fries are concentrated above the standard thick container as much as possible under the action of the light induction lamp and the inflow micro-water flow. Can effectively reduce fry and filter screen contact like this to reduce the condition that the fry died because of touching the filter screen.

The one end of standpipe I is located the one end in the thick container outside of mark through tee bend I and outlet pipe and is connected, and the other end passes through tee bend II and is connected with standpipe II, and a port level of tee bend II sets up as the delivery port. The height of the water outlet is lower than the highest water level of the standard coarse container. The vertical pipe I, the vertical pipe II and the tee joint II can rotate around the tee joint I to adjust the relative position of the water outlet. According to the siphon effect principle, the water level in the standard thick container can be adjusted by adjusting the angle position of the vertical pipe I through rotating the tee joint I.

The overfeeding of the initial bait will automatically sink in the water due to gravity. The water flow in the container with the added scale is in the flowing direction from top to bottom. Under the comprehensive action, the initial baits are more easily concentrated to the lowest part of the standard coarse container. Because the volume of the bottom of the coarse marking container is smaller, the water flow below the filter screen is faster, the discharge of the light initial feed is facilitated, and the filtering efficiency of the system is greatly improved.

When water in the standard coarse container normally enters and exits, part of excessive organic matters such as opening baits, feces of the fries and the like are driven by the water flow below the standard coarse container to flow out of the standard coarse container. But also partial organic matters are relatively heavy and cannot be driven by water flow to enter the tee joint II upwards when reaching the tee joint I, so that partial organic matters are retained in the water outlet pipe. The water outlet direction can be adjusted by adjusting the valve of the tee joint I, so that water passes through the tee joint II, and organic matters retained in the water outlet pipe are discharged by utilizing water flow. The design can completely remove organic matters as far as possible and keep the water quality good.

A plurality of partition plates are arranged in the sedimentation tank and used for dividing the sedimentation tank into a plurality of cells, and the height of each partition plate is lower than that of the wall of the sedimentation tank; the partition board is vertical to the flowing direction of the water body, and water enters from the first cell and flows out from the last cell; the bottom of each cell is provided with an obliquely arranged base plate; along the flowing direction of the water body, the backing plate inclines downwards, and the inclined tail end is provided with a sewage discharge valve. The backing plate slope sets up, and dirty effect of collection is better. The water flows through each cell of the sedimentation tank in sequence, and solid suspended matters in the water are deposited downwards under the action of gravity in each cell due to slow water flow speed, so that the sedimentation effect is better after multiple times of sedimentation. The processing load of the subsequent physical filter can be effectively reduced, the configuration of the system is reduced, and the cost of the system configuration is further reduced.

The physical filter is a micro-filter, in the embodiment, the filtering precision of the micro-filter is more than 30 microns, and the physical filter filters micro particles with the particle size of more than 30 microns in the water body and discharges the micro particles out of the water body. Most organic particles in the water body are discharged out of the water body, so that the organic particles can be prevented from being continuously decomposed into substances such as ammonia nitrogen and nitrite which are toxic to the fry water bloom, and the water quality is more suitable for the healthy growth of the fry water bloom.

Porous biological filter materials and probiotics are placed in the biological filter tank. The surface area of the porous biological filter material is large, attachment and biofilm formation of aquatic probiotics are facilitated, the probiotics can be propagated in a large amount under the conditions of proper temperature and dissolved oxygen, and the probiotics are continuously propagated to decompose substances such as ammonia nitrogen and nitrite which are toxic to fry water in water. Meanwhile, the biological filter tank can also decompose part of organic matters which are not filtered out in the water.

In this example, the filtration apparatus was a WL30 drum micro-filtration machine manufactured by guangzhou lanling water obstetrics and arts limited, and the constant temperature apparatus was a WN-1BN2BN type constant temperature machine manufactured by wilo freezing apparatus limited, buddha. The oxygen increasing equipment adopts a VB185G fan produced by Guangdong Haili group Limited company, the oxygen increasing equipment can improve the oxygen content of the water body, and the water with high dissolved oxygen is a powerful guarantee that the water flowers of the fries can grow healthily and have high survival rate. The ultraviolet sterilization equipment adopts an AUV30-6 pipeline type ultraviolet sterilizer produced by Guangzhou Lanling aquatic technology Limited, and is used for killing microorganisms such as bacteria, viruses and the like in water, so that the possibility of the fry water bloom infecting and generating diseases can be effectively reduced. In addition, ultraviolet sterilization equipment is additionally arranged at the front end of the biological filter tank to kill most of microorganisms. In the biological filter tank, probiotic bacteria (such as Bacillus, yeast, photosynthetic bacteria, nitrifying bacteria, etc.) can be artificially added. So that the probiotics can avoid competition from other microorganisms with stronger reproductive capacity in the culture process. Effectively quickening the reproduction speed of the beneficial bacteria.

After the water body is filtered, thermostated, oxygenated and sterilized, the organic matter in the water body is basically removed, a small amount of organic matter is decomposed into substances such as ammonia, nitrite and the like, and finally removed in the biological filter tank. The dissolved oxygen and the temperature of the water body also reach the proper range. The concentration of pathogenic microorganisms such as bacteria and viruses can be controlled within a safe range. The system can continuously operate, and can keep the water quality stable for a long time. The water after being filtered, treated at constant temperature, oxygenated, sterilized and pressurized is sent into a standard coarse container from a water inlet pipe, the water quality of the treated water is constant, the dissolved oxygen is sufficient, and harmful substances such as ammonia nitrogen, nitrite and the like are effectively controlled at a reasonable level, thereby providing good conditions for the healthy growth of water bloom. In the later stage of marking the fry rough, soil pond water can be added to enter a circulating water marking rough system, and the daily adding proportion is gradually increased, so that the fry gradually adapts to the water quality of the soil pond. Reduce the stress reaction generated when the seedlings are put into the soil pond.

Besides the modes mentioned in the above embodiments, the system can be configured reasonably according to the water quality requirement of water treatment, the thermostatic equipment can be an automatic thermostatic boiler or an air energy heat pump, and the physical filter can be a filtering sand cylinder or a bag filter or a protein separator. In addition, the water treatment process can also be adjusted according to actual conditions, such as: the water flows out of the standard coarse container and then automatically flows into the sedimentation tank, and then is pressurized by the water pump to enter subsequent equipment, the water outlet of the biological filter tank is set to be higher than the water level of the standard coarse container, and the water in the biological filter tank automatically flows into the standard coarse container. The water level of the biological filter tank can be set to be the lowest, the water pump is arranged between the biological filter tank and the coarse container, namely, the water flow in the front is carried out in a natural fall way, and the water flows in each device of the system by the gravity of the water flow; finally, the circulating water pump pumps water from the biological filter tank into the coarse container. In short, the system is provided with only one circulating water pump, and the power consumption of the system can be reduced to the minimum. These variations are all within the scope of the present invention.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (10)

1. The utility model provides an aquaculture fry mark thick system which characterized in that: the device comprises a coarse calibration device, and a sedimentation tank, a water pump, a physical filter, a constant temperature device, an oxygenation device, an ultraviolet sterilization device and a biological filter tank which are sequentially arranged along the flowing direction of a water body; the water discharging end of the coarse marking device is communicated with the sedimentation tank, and the water inlet end of the coarse marking device is communicated with the biological filter tank.

2. The aquaculture fry thickening system according to claim 1, wherein: the marking device comprises a marking container, a water inlet pipe and a water outlet pipe; the upper part of the coarse marking container is provided with a water inlet, the bottom of the coarse marking container is provided with a seedling emergence opening and a water outlet, one end of the water inlet pipe penetrates through the water inlet and horizontally extends into the coarse marking container, and one end of the water outlet pipe penetrates through the water outlet and horizontally extends into the coarse marking container; the cross section area of the coarse marking container is gradually reduced from top to bottom along the vertical direction, and the cross section area of the middle part of the coarse marking container is 0.4-0.6 times of the cross section area of the top part.

3. The aquaculture fry thickening system according to claim 2, wherein: the marking device further comprises a filter screen and a light induction lamp arranged on the inner wall of the top of the marking container, and the filter screen is horizontally arranged on the inner wall above the water outlet of the marking container and below the seedling emergence opening.

4. The aquaculture fry thickening system according to claim 2, wherein: the water inlet pipe is provided with a plurality of nozzles which are arranged along the axial direction of the water inlet pipe; the water outlet pipe is provided with a plurality of small water outlet holes.

5. The aquaculture fry thickening system according to claim 3, wherein: the thick device of mark is still including setting up standpipe I and standpipe II in the thick container outside of mark, and tee bend I and play water piping connection are passed through to the one end of standpipe I, and the other end passes through tee bend II and is connected with standpipe II, and a port level of tee bend II sets up as the delivery port.

6. The aquaculture fry thickening system according to claim 2, wherein: the main body of the coarse container is assembled by four rectangular plates; wherein the two plates are oppositely arranged in a V shape in an inclined way, and the included angle is less than 60 degrees; in addition, the two plates are vertically arranged and are respectively connected to two ends of the two plates which are obliquely arranged in a V shape.

7. The aquaculture fry thickening system according to claim 1, wherein: the interior of the sedimentation tank is provided with a clapboard used for dividing the sedimentation tank into a plurality of cells, and the height of the clapboard is lower than that of the wall of the sedimentation tank; the clapboard is vertical to the flowing direction of the water body.

8. The aquaculture fry thickening system of claim 7, wherein: the bottom of each cell is provided with an obliquely arranged base plate; along the direction of flow of the body of water, the mat slopes downward.

9. The aquaculture fry thickening system according to claim 1, wherein: porous biological filter materials and probiotics are placed in the biological filter tank.

10. The aquaculture fry thickening system according to claim 1, wherein: the physical filter is a micro-filter or a sand filter cylinder or a bag filter or a protein separator.

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