CN110495417A - A kind of construction method in prawn circulating water culture system bioelectric detecting pond - Google Patents
A kind of construction method in prawn circulating water culture system bioelectric detecting pond Download PDFInfo
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- CN110495417A CN110495417A CN201910806490.7A CN201910806490A CN110495417A CN 110495417 A CN110495417 A CN 110495417A CN 201910806490 A CN201910806490 A CN 201910806490A CN 110495417 A CN110495417 A CN 110495417A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
- A01K63/006—Accessories for aquaria or terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/166—Nitrites
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
Abstract
The present invention relates to a kind of construction methods in prawn circulating water culture system bioelectric detecting pond, belong to aquiculture sewerage process field, the method includes the cultural methods of bioelectric detecting pond building and biomembrane, two-stage is divided in bioelectric detecting pond, filling resilient bristles and more empty suspension microorganism attachment bases respectively, lower part connection, bottom are pyramidal structure, and equipped with central bottom blowdown mouth；Biomembrane culture is carried out after adding ammonium chloride using the water body in prawn circulating water cultivation later period, by culture in 28 days or so, biofilm formation；Bioelectric detecting pond conical lower portion structure is convenient for blowdown and cleaning；Operation of the present invention is simple, and without excessive ingredient addition and complicated operation, biological Membrance cuiture is efficient rapidly, easy to maintain, low in cost, and can long-term efficient operation.
Description
Technical field
The present invention relates to a kind of construction methods in prawn circulating water culture system bioelectric detecting pond, belong to aquiculture sewerage
Process field.
Background technique
Bioelectric detecting pond is the complex biological purification system that water body purification is carried out by the microorganism of attachment primary surface growth,
It plays a leading role to the control of the harmful substances such as ammonia nitrogen, nitrite in cultivating system, for circulating water culture system cultivation water
The stabilization of environment or even cultivation success or failure play key effect.Therefore, the building in bioelectric detecting pond, the culture of biomembrane and later period
Management service, decide the operating status of circulating water culture system.
Bioelectric detecting pond relies primarily on the microorganisms such as the ammonia oxidizing bacteria for being attached to biological attachment primary surface, nitrobacteria
Nitrifying process realizes that the conversion to ammonia nitrogen, nitrite removes, but ammonia oxidizing bacteria, nitrobacteria are generally autotrophic bacteria, numerous
Grow the period in 16h or more, it is not dominant in competition compared with the average breeding cycle only has the heterotrophicy bacteria of 2.7h, thus biology
Regulation pond takes a long time to reach stable nitrification state, especially in environment of the circulating water culture system with respect to oligotrophic
Lower biology Membrance cuiture is even more difficulty.Before fish recirculating aquaculture system biological regulation pond enables, the culture of biomembrane is generally needed
2-3 months even time of half a year are taken, and Penaeus Vannmei can reach listing in three months in the environment of industrial aquaculture
Specification, too long biomembrane incubation time mutually conflict with the shorter prawn culturing period, seriously restrict prawn circulating water cultivation
The development of industry.
In order to accelerate the speed of growth of biomembrane, shortens the biofilm time, mostly use inoculation nitrobacteria or activity before this
The method of sludge promotes biofilm.But inoculation bacterium and system original bacterium colony there are problems that competition and adaptability, inoculation outside
Come strain may environmental inadequacies or be in a disadvantageous position etc. in the competition of original bacterium colony due to and can not survive so that inoculation
Bacterium does not play the role of promoting biofilm development.Even if biofilm development can be promoted by being inoculated with external strain, shorten biofilm
Period, later period are possible to cause biomembrane premature death because of unstable with the relationship of original bacterium colony, fall off, and lead to system water
Matter deteriorates suddenly, causes heavy losses.Therefore, in large-scale commercial production application, in order to bioelectric detecting pond can it is long-term,
The mode of natural membrane is generally still taken in stable work.
Biomembrane has certain growth cycle in bioelectric detecting pond, and there are adaptation, growth, maturation, the evolutions rank such as fall off
Section, although biomembrane can be with self-renewing, a large amount of biomembrane agings in the same time, falling off will lead to dashing forward for cultivation water environment
So deteriorate, threatens the existence health of aquaculture organism.In addition, the sedimentation of residual bait excrement, biology in the During Process of Long-term Operation of cultivating system
Film aging, which falls off etc., can cause the sludgd deposition of bioelectric detecting bottom of pond portion, and a large amount of sludgd deposition, corruption can also cause water environment
Deterioration, threaten the health of aquaculture organism.And prawn is generally muddy water cultivation, and solid particle is more in water body, bioelectric detecting
Pond solids particles precipitate phenomenon is more serious compared with fish cultivating system.Therefore, the daily management maintenance pair in bioelectric detecting pond
Most important in stablizing for cultivating system, periodic cleaning bioelectric detecting bottom of pond portion deposit in due course carries out bioelectric detecting pond anti-
The update for rinsing, promoting biomembrane, facilitates the steady in a long-term of circulating water culture system.But the design in general bioelectric detecting pond does not have
Have in view of daily clean and maintenance, or be not easy to daily management maintenance, cause cultivating system in During Process of Long-term Operation frequently
There is unstable state.
Although bioelectric detecting pond has been widely used in fish recirculating aquaculture system, but still there are biomembrane trainings
The problems such as supporting time length, biofilm detachment, inconvenient maintenance management, there is an urgent need to develop a kind of simple, quick, efficient, managers
Just bioelectric detecting pond is to support the development of prawn circulating water cultivation mode.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of building in prawn circulating water culture system bioelectric detecting pond
Method, the method can solve bioelectric detecting bottom of pond mud deposition, maintenance management inconvenience, and biological Membrance cuiture is difficult, the period is long, no
Stable problem.
The present invention is realized by following technical solution:
A kind of construction method in prawn circulating water culture system bioelectric detecting pond, the method includes the buildings of bioelectric detecting pond
With the cultural method of biomembrane, the specific steps are as follows:
The building of bioelectric detecting pond: bioelectric detecting pond divides two-stage to be that level-one bioelectric detecting pond and two stage biological regulate and control pond, level-one
Communicating pipe connection is arranged at bioelectric detecting pond and two stage biological regulation pond lower part, and the top in level-one bioelectric detecting pond is arranged in water inlet,
The top in two stage biological regulation pond is arranged in water outlet；Level-one bioelectric detecting pond and two stage biological regulation pond are cylindrical structure,
Bottom is pyramidal structure, and center bottom is simultaneously respectively equipped with level-one sewage pipe and second level sewage pipe；Level-one bioelectric detecting pond and second level
Resilient bristles microorganism attachment base and porous suspended microorganism attachment base are filled in bioelectric detecting pond respectively, level-one bioelectric detecting pond and
Two stage biological regulates and controls pond lower part and is equipped with aeration oxygenator；
The cultural method of biomembrane: being pumped into the breeding water body in prawn circulating water culture system later period into bioelectric detecting pond,
Total number of bacteria is at (1.3-2.5) × 106CFU/mL, bacterium include account for total bacteria amount 50.79-60.06% red Bacteriaceae it is thin
Bacterium accounts for the Flavobacterium section bacterium of total bacteria amount 19.91-25.60%, accounts for the nitrosation list of total bacteria amount 0.06-0.10%
Born of the same parents bacterium, the nitrification spirillum for accounting for total bacteria amount 0.09-0.12%, the arch bacillus for accounting for total bacteria amount 0.21-0.26%, Zhan are total
The Shandong outstanding person Salmonella of bacterial number 0.53-0.59%, accounts for total bacteria amount at the bacillus for accounting for total bacteria amount 0.65-0.82%
The streptococcus of 0.04-0.07%, accounts for total bacteria amount 0.01-0.03%'s at the galactococcus for accounting for total bacteria amount 0.45-0.56%
Enterococcus；It adds ammonium chloride and improves ammonia nitrogen concentration, initial ammonia nitrogen concentration is 5.0-5.5mg/L, nitrite concentration 0.5-
0.6mg/L, nitrate concentration 18.5-20.5mg/L, total nitrogen concentration 30.1-32.5mg/L, water turbidity 0.8-
1.1NTU, COD 13.3-15.7mg/L, total phosphorus concentration 3.5-4.5mg/L, pH 7.5-7.8, temperature maintain 22-25
DEG C, oxidation-reduction potential-(41-45) mV is lasting to be aerated, DO >=5mg/L, salinity 28-35, carries out biological Membrance cuiture；By one
The culture in week, ammonia nitrogen concentration decline to a great extent, and 99% or more ammonia nitrogen can be removed after 10 days；Ammonia nitrogen removal simultaneously can be with nitrous acid
Salt accumulation, nitrite starts to decline to a great extent after 20 days；99% or more ammonia nitrogen, nitrite are all removed after 28 days, raw
Object adheres to primary surface and adheres to one layer of adhesive film, indicates that biomembrane has been formed.
Further, the filling rate of resilient bristles microorganism attachment base and porous suspended microorganism attachment base be respectively 50%,
20%.
The present invention compared with prior art the utility model has the advantages that
(1) two-stage is divided in bioelectric detecting pond, fills resilient bristles microorganism attachment base and the attachment of porous suspended microorganism respectively
Base, promotes the removal of breeding water body solid particle using the certain physical filtering ability of resilient bristles attachment base, while utilizing more
The high-specific surface area of hole suspension attachment base provides higher apposition growth space for nitrobacteria.
(2) bioelectric detecting pond lower part is pyramidal structure and arranges sewage pipe equipped with central bottom, is conducive to regulate and control the poly- of bottom of pond mud
Collection, blowdown are also conducive to the management works such as bioelectric detecting pond backwash, guarantee the long-term efficient operation in bioelectric detecting pond.
(3) biological Membrance cuiture is carried out using the breeding water body in prawn circulating water culture system later period, utilization is wherein abundant
The nitrobacteria group of nutriment, stable biological community structure and relative abundance, it is only necessary to add ammonium chloride and improve ammonia
Nitrogen concentration is to promote the growth and breeding of nitrobacteria, to promote the culture of biomembrane, shortens biomembrane incubation time, realizes life
The rapid build in object regulation pond.By 28 days biological Membrance cuitures ammonia nitrogen, nitrite can be dropped to respectively 0.05mg/L,
0.005mg/L is hereinafter, comply fully with cultivation water requirement.This prawn circulating water culture system bioelectric detecting pond construction method considers
It is safeguarded to daily management, biomembrane incubation need to only add ammonium chloride in breeding wastewater, without adding other materials, be not necessarily to
Complicated operation, it is easily operated, it is low in cost, it is of very high actual application value.
Detailed description of the invention
Fig. 1 prawn circulating water culture system bioelectric detecting pool structure schematic diagram of the present invention:
1, water inlet, 2, connecting pipe, 3, water outlet, 4, level-one gas tube, 5, second level gas tube, 6, level-one sewage pipe,
7, second level sewage pipe, 8, resilient bristles microorganism attachment base, 9, porous suspended microorganism attachment base.
Specific implementation method
Technical solution of the present invention is further explained below by embodiment.
Embodiment 1
Bioelectric detecting pond is constructed according to Fig. 1, bioelectric detecting pond divides two-stage to be that level-one bioelectric detecting pond and two stage biological regulate and control
Communicating pipe connection is arranged at pond, level-one bioelectric detecting pond and two stage biological regulation pond lower part, and water inlet is arranged in level-one bioelectric detecting pond
Top, water outlet be arranged in two stage biological regulation pond top；Level-one bioelectric detecting pond and two stage biological regulation pond are circle
Cartridge type Glass fibre reinforced plastic tub, volume are all 600L, and bottom is pyramidal structure, and center bottom is simultaneously respectively equipped with level-one sewage pipe and second level row
Dirt pipe；Resilient bristles microorganism attachment base and porous suspended micro- life are filled in level-one bioelectric detecting pond and two stage biological regulation pond respectively
Object attachment base, filling rate are respectively 50%, 20%；Level-one bioelectric detecting pond and two stage biological regulation pond lower part are equipped with aeration aerating
Device.
Bioelectric detecting pond is cleaned and is sterilized before biological Membrance cuiture.Prawn circulating water cultivation system is pumped into regulation pond
The breeding water body in system later period, and ammonium chloride 18.5g is added, adjustment inflation makes porous suspended attachment base be in fluidized state.Biology
Membrance cuiture initial reaction device water body state are as follows: total number of bacteria 1.3 × 106CFU/mL, water turbidity 0.8NTU, ammonia nitrogen concentration
5.6mg/L, nitrite concentration 0.5mg/L, nitrate concentration 20.7mg/L, total nitrogen concentration 31.5mg/L, total phosphorus 4.2mg/L,
COD concentration 13.5mg/L, pH 7.6,25 DEG C of temperature, DO 6.1mg/L, salinity 30.2, oxidation-reduction potential -41.2mV.Biology
It persistently inflates during Membrance cuiture, biofilter water body various nitrogen forms concentration of element is detected every two to three days, to grasp
Biological Membrance cuiture process.
Bioelectric detecting pond is rapid to ammonia nitrogen removal, and ammonia nitrogen concentration declines to a great extent after 5d, reaches 2.54mg/L, while nitrous acid
Salt has apparent accumulation, reaches 2.25mg/L；The removal to 99% or more ammonia nitrogen can be realized after 10 days, at this time nitrite product
Tired degree highest, reaches 6.56mg/L；Nitrite starts to decline to a great extent after 20 days, gradates as the nitrate of low toxicity；It
Biological Membrance cuiture process is gradually accelerated afterwards, and nitrite decrease speed is gradually increasing；Ammonia nitrogen, nitrite are realized after 28 days
99% or more removal, is completely converted into nitrate, and biological attachment primary surface adheres to one layer of adhesive film, indicates biomembrane shape
At.
It selects a good opportunity after the completion of biological Membrance cuiture and biofilter is incorporated to circulating water culture system, start Penaeus Vannmei recirculated water
Cultivation.Culturing pool body is pumped into bioelectric detecting pond by water inlet 1 by water pump, by the purification in level-one bioelectric detecting pond, warp
Communicating pipe 2 enter two stage biological and regulate and control pond, finally flows out bioelectric detecting pond from water outlet 3, flow back to aquaculture pond by liquid level difference.Benefit
With the level-one sewage pipe 6 and second level sewage pipe 7 in bioelectric detecting pond, bioelectric detecting bottom of pond portion settled sludge is periodically discharged, avoids bottom
Mud corruption bad water.Ammonia nitrogen, nitrite concentration≤1.0mg/L during entire cultivation, ammonia nitrogen and nitrous acid after system run all right
Salinity < 0.5mg/L meets the cultivation requirement of Penaeus Vannmei.
After one culture-cycle, flushing appropriate is carried out to bioelectric detecting pond, reproduction can be carried out, without again
The phenomenon that biological Membrance cuiture of progress, also there is no biofilm detachments, greatly improve breeding efficiency.
Embodiment 2
Building bioelectric detecting pond as described in example 1 above is pumped into seawater into regulation pond, and passes through addition ammonium chloride, Asia
Sodium nitrate, glucose prepare artificial sewage, so that it is consistent in ammonia nitrogen, the concentration of nitrite and COD and embodiment 1, respectively
5.6mg/L, 0.5mg/L and 13.5mg/L, total phosphorus, pH, salinity, DO etc. are also consistent with embodiment 1.Biomembrane culture period
Between persistently inflate, biofilter water body various nitrogen forms concentration of element is detected every two to three days, with grasp biomembrane training
The process of supporting.
Biofilm development speed is slower, slow to the removal speed of ammonia nitrogen and nitrite, and ammonia nitrogen just occurs greatly after 44 days
Width decline, reaches 3.8mg/L, could remove ammonia nitrogen after 59 days substantially, ammonia nitrogen is made to be down to 0.003mg/L；While ammonia nitrogen removal
Along with the accumulation of nitrite, nitrite is largely accumulated after ammonia nitrogen declines to a great extent, and reaches peak value 2.1mg/L at the 47th day,
Hereafter start rapid decrease, basic removal nitrite, was down to 0.004mg/L at the 71st day.Compared with Example 1, embodiment 2
Biofilm development speed it is slower, the time of biological Membrance cuiture consumption is 2.5 times of embodiment 1.
Claims (2)
1. a kind of construction method in prawn circulating water culture system bioelectric detecting pond, it is characterised in that the method includes biological modulateds
Control the cultural method of pond building and biomembrane, the specific steps are as follows:
The bioelectric detecting pond building: bioelectric detecting pond divides two-stage to be that level-one bioelectric detecting pond and two stage biological regulate and control pond, level-one
Communicating pipe connection is arranged at bioelectric detecting pond and two stage biological regulation pond lower part, and the top in level-one bioelectric detecting pond is arranged in water inlet,
The top in two stage biological regulation pond is arranged in water outlet；Level-one bioelectric detecting pond and two stage biological regulation pond are cylindrical structure,
Bottom is pyramidal structure, and center bottom is simultaneously respectively equipped with level-one sewage pipe and second level sewage pipe；Level-one bioelectric detecting pond and second level
Resilient bristles microorganism attachment base and porous suspended microorganism attachment base are filled in bioelectric detecting pond respectively, level-one bioelectric detecting pond and
Two stage biological regulates and controls pond lower part and is equipped with aeration oxygenator；
The cultural method of the biomembrane: being pumped into the breeding water body in prawn circulating water culture system later period into bioelectric detecting pond,
Total number of bacteria is at (1.3-2.5) × 106CFU/mL, bacterium include account for total bacteria amount 50.79-60.06% red Bacteriaceae it is thin
Bacterium accounts for the Flavobacterium section bacterium of total bacteria amount 19.91-25.60%, accounts for the nitrosation list of total bacteria amount 0.06-0.10%
Born of the same parents bacterium, the nitrification spirillum for accounting for total bacteria amount 0.09-0.12%, the arch bacillus for accounting for total bacteria amount 0.21-0.26%, Zhan are total
The Shandong outstanding person Salmonella of bacterial number 0.53-0.59%, accounts for total bacteria amount at the bacillus for accounting for total bacteria amount 0.65-0.82%
The streptococcus of 0.04-0.07%, accounts for total bacteria amount 0.01-0.03%'s at the galactococcus for accounting for total bacteria amount 0.45-0.56%
Enterococcus；It adds ammonium chloride and improves ammonia nitrogen concentration, initial ammonia nitrogen concentration is 5.0-5.5mg/L, nitrite concentration 0.5-
0.6mg/L, nitrate concentration 18.5-20.5mg/L, total nitrogen concentration 30.1-32.5mg/L, water turbidity 0.8-
1.1NTU, COD 13.3-15.7mg/L, total phosphorus concentration 3.5-4.5mg/L, pH 7.5-7.8, temperature maintain 22-25
DEG C, oxidation-reduction potential-(41-45) mV is lasting to be aerated, DO >=5mg/L, salinity 28-35, carries out biological Membrance cuiture；28 days it
99% or more ammonia nitrogen, nitrite are all removed afterwards, and biological attachment primary surface adheres to one layer of adhesive film, indicate biomembrane
It is formed.
2. according to the method described in claim 1, it is characterized in that the resilient bristles microorganism attachment base and porous suspended micro-
The filling rate of biological attachment base is respectively 50%, 20%.
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| CN110818067A (en) * | 2019-11-28 | 2020-02-21 | 中国水产科学研究院渔业机械仪器研究所 | Nitrification bacteria and photosynthetic bacteria symbiotic prawn culture tail water treatment system |
| CN116177804A (en) * | 2023-02-28 | 2023-05-30 | 浙江省淡水水产研究所 | Water quality regulation and control system and method for recirculating aquaculture of micropterus salmoides |
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| CN110495417B (en) | 2020-04-28 |
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