CN110683634A - Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler - Google Patents

Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler Download PDF

Info

Publication number
CN110683634A
CN110683634A CN201910850482.2A CN201910850482A CN110683634A CN 110683634 A CN110683634 A CN 110683634A CN 201910850482 A CN201910850482 A CN 201910850482A CN 110683634 A CN110683634 A CN 110683634A
Authority
CN
China
Prior art keywords
bamboo
branches
leaves
leaf
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910850482.2A
Other languages
Chinese (zh)
Inventor
原居林
练青平
倪蒙
夏佳佳
高令梅
刘梅
周聃
胡廷尖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Institute of Freshwater Fisheries
Original Assignee
Zhejiang Institute of Freshwater Fisheries
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Institute of Freshwater Fisheries filed Critical Zhejiang Institute of Freshwater Fisheries
Priority to CN201910850482.2A priority Critical patent/CN110683634A/en
Publication of CN110683634A publication Critical patent/CN110683634A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C02F3/105—Characterized by the chemical composition
    • 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
    • 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
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention provides a water cleaning method for an aquaculture pond based on bamboo branch and leaf biological fillers, which comprises the following steps: s1: treating bamboo branches and leaves with clear lime water to prepare a biological filler; s2: preparing an ecological floating bed, and finishing biofilm formation on the surface of the biological filler; s3: and (3) water cleaning treatment: aerating to form a water flow carrying air bubbles, and performing water cleaning treatment on the water flow by using the biological membrane. The invention adjusts various parameters, such as aeration time, flow rate regulation, pH, Xenocypris bleeker culture quantity, biological filler input quantity, microbial flora input and the like, so as to form a biological biofilm on the surface of the filler, purify the water quality by using the biofilm, treat the fallen biofilm by using Xenocypris bleeker, and regularly add microorganisms to maintain the biofilm.

Description

Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler
Technical Field
The invention relates to the technical field of aquaculture wastewater treatment, in particular to a method for cleaning water in an aquaculture pond based on bamboo branch and leaf biological fillers.
Background
China is the first aquaculture country in the world, and the total aquaculture amount accounts for about 70% of the world. However, the main operation mode of aquaculture in China still mainly depends on extensive aquaculture of resource consumption, and the aquaculture industry faces a series of bottleneck problems that the water surface source pollution, the water area ecological environment degradation, the product quality reduction and the like restrict the industry development. In the freshwater pond culture, because the heterotopic treatment cost of the culture tail water is high and difficult to continue, a low-cost and high-efficiency culture tail water in-situ treatment technology is often adopted, in the culture tail water in-situ treatment technology, various levels of water treatment units are adopted to form a sewage treatment system, and the core of the system is a biological treatment unit for removing ammonia nitrogen, nitrite nitrogen, organic matters and the like. The biological treatment unit generally utilizes various carrier fillers and biological biofilm culturing technologies to construct a biological filter. Microorganisms attach to the surface of the carrier filler and grow in large quantities to form a film-shaped microbial community, thereby degrading various pollutants in the wastewater.
The existing fillers made of various natural biological materials are particularly suitable for the treatment process of low-pollution load wastewater, such as the circular treatment of aquaculture wastewater (including fresh water and seawater), and can effectively solve the problem of slow biofilm formation. For example, chinese patent CN107381778A discloses a preparation method of a modified bamboo branch and leaf biological filler, which has the advantages of good stability, large specific surface area and difficult shedding of a biological membrane, but the modified bamboo branch and leaf biological filler has the problems of complicated manufacturing procedure and high manufacturing cost, and is not suitable for cleaning water in aquaculture ponds.
Disclosure of Invention
In order to solve the problems, the application provides a water cleaning method for an aquaculture pond based on bamboo branch and leaf biological fillers.
A water cleaning method for an aquaculture pond based on bamboo branch and leaf biological fillers comprises the following steps:
s1, placing bamboo branches and leaves into a bag formed by a mesh to prepare the bamboo branch and leaf biological filler, wherein the tightness of the bamboo branches and leaves is subject to the condition that the bamboo branches and leaves are not subjected to frequent displacement and friction in a water flow state, and the bamboo branches and leaves are soaked in supernatant of quicklime dissolving liquid for 200-200 ~ 280 minutes at 15-15 ~ 25 ℃;
s2: preparing an ecological floating bed, suspending the ecological floating bed prepared in the step in an aquaculture pond, and finishing biofilm formation on the surfaces of the bamboo branches and leaves by using strains with water purification capacity in the aquaculture pond; the ecological floating bed comprises a microporous aeration disc and a net cage, the net cage is arranged on the microporous aeration disc, and a gap of at least 20cm is kept between the microporous aeration disc and the bottom of the aquaculture pond; the upper part of the net cage is provided with a floater, the bottom of the net cage is provided with a sinker, and the inside of the net cage is provided with an air duct and the bamboo branch and leaf biological filler; the air duct is connected with the microporous aeration disc;
s3: and (3) water cleaning treatment:
aerating the bamboo branch and leaf biological filler to form a water flow carrying air bubbles and flowing through the bamboo branch and leaf biological filler from bottom to top, and performing water cleaning treatment on the water flow flowing through the bamboo branch and leaf biological filler by utilizing the biological film.
The technical scheme has the advantages of simple operation, low cost and simple and easily-obtained materials. Because a plurality of biological greasy substances and other non-cellulose components exist on the surface of the natural bamboo branches and leaves, the adsorption capacity of the bamboo branches and leaves is influenced, the biological greasy substances on the surface of the bamboo branches and leaves are removed, and the adsorption capacity and the specific surface area of the bamboo branches and leaves are improved.
Preferably, after the biofilm is formed in S2, the method further comprises:
adding strains with water purifying capability near the bamboo branch and leaf biological filler every 150 ~ 300 hours, and adjusting the pH value of the culture pond to 7-8.5 to keep a certain amount of strains with water purifying capability.
In the preferred technical scheme, the pH value is neutral or slightly alkaline environment, which is beneficial to the growth of biofilm and microorganisms.
As a preferable mode of the technical scheme, the water cleaning method for the aquaculture pond further comprises the following steps:
s4: culturing a silver catfish in the culture pond to remove the sloughed off biofilm.
Therefore, the fallen biological membrane can be cleaned by utilizing habits of the Ictalurus davidi, and pollution caused by the fallen biological membrane is prevented.
In the above technical solution, preferably, in the S5, the breeding amount of the silver bleekers is calculated by a formula T1: Dm = bm/k, in the formula T1, Dm is the breeding amount of the silver bleekers, bm is the biomass of the fish, k is a conversion ratio, and the value of k is 40 ~ 60 kg/tail.
Therefore, the breeding quantity of the Ictalures can be determined according to the biomass of the fish, and the situation that the breeding quantity of the Ictalures is too much or too little can not occur.
Preferably, in the above technical solution, the bamboo branches and leaves put into the bag formed of the mesh in S1 are vertically bound bamboo branches and leaves; the bag cavity of the bag is cylindrical, and the bundled bamboo branches and leaves are cylindrical.
Therefore, the cylindrical bamboo branches and leaves bundled into the cylindrical capsule cavities are convenient to place.
Preferably, the flow rate of the water stream in the step S3 is controlled to be between 1 ~ 3cm/S, so that the biological membrane is not damaged by the flow of the water stream, and sufficient oxygen is provided for the biological membrane.
Preferably, the bamboo branches and leaves in S1 are bamboo branches and leaves of moso bamboos growing at 3 years; the bamboo branches and leaves comprise lateral branches, small branches, leaf branches and bamboo leaves; the mass ratio of the mass of the lateral branches, the small branches and the leaf branches to the mass of the bamboo leaves is 1: 1.
in the technical scheme, the bamboo branches and leaves of the moso bamboos as the raw materials for manufacturing the bamboo branch and leaf biological filler have the following advantages: the method comprises the following steps: the bamboo branches and leaves of the moso bamboo have larger specific surface area which can provide sufficient film forming area and contact area for microorganisms; the second is as follows: the bamboo branch and leaf surface of the moso bamboo has enough roughness for easy microbial biofilm formation growth and better wettability and biological activity; the third is: the bamboo branch and leaf biological filler prepared from the bamboo branches and leaves of the moso bamboo has larger void ratio, so that the penetration resistance of fluid is small, the pressure drop is small, and the energy consumption is low; the fourth step is: the bamboo branches and leaves of the moso bamboo are light in weight and have certain mechanical strength and biological stability; and the fifth is: the material is easy to obtain, the price is low, and the transportation and the installation are convenient.
Preferably, in the above aspect, wherein,
the quantity of the required bamboo branch and leaf biological fillers is represented by the formula T2: ptan = S0the/S is given;
wherein said S0From equation T3: s0=[（bm×fr/f)×pc×k1/t）]The/frem is given;
in the formula T2, Ptan is the quantity of the required bamboo branch and leaf biological filler, and S0The required biological biofilm formation area is obtained, and S is the biological biofilm formation area of a single bamboo branch and leaf biological filler; the bm in the formula T3 is the biomass of fish, the fr is the feeding rate of feed per day, the f is the feeding times of feed per day, the pc is the proportion of protein in the feed, the k1 is the conversion rate of protein to total ammonia nitrogen, the T is the time required by the feed to be converted to total ammonia nitrogen, and the frem is the ammonia nitrogen removal rate of filler per unit area;
the conversion ratio k2 is calculated by the formula T4: the ptan = bm × k2/pm1, in the formula T4, is given by the formula T2 and is obtained by practical adjustment; bm is the biomass of fish, pm1 is the mass of biological filler of single bamboo branch and leaf, and K2 is the conversion ratio, namely the mass of the biological filler required by cultured fish per unit mass.
Preferably, the value of k2 is 0.20 ~ 0.30.30.
Preferably, the bamboo branches and leaves in the bag are provided with a plurality of groups, the discharge direction of the plurality of groups of bamboo branches and leaves is consistent with the aeration flow direction, and the two groups of bamboo branches and leaves which are adjacent up and down are connected end to end.
Therefore, the bamboo branches and leaves in the bag can be placed more flexibly.
In conclusion, the invention has the following beneficial effects:
1. the upper part of the bamboo soil is provided with bamboo stalks, main branches, side branches, small branches, leaf branches and leaves; the invention needs four parts of materials of lateral branches, small branches, leaf branches and bamboo leaves; the material is the moso bamboo leftovers, does not need special processing, only needs to be bound, except that the pretreatment is carried out by dissolving the supernatant with the quicklime for soaking and adjusting the pH value of the biological filler, is a physical finishing process, is convenient to obtain materials, simple in process and economic in process, and is easy to master and apply by thousands of households; the bamboo branch and leaf of the moso bamboo as the raw materials for manufacturing the bamboo branch and leaf biological filler has the following advantages: the method comprises the following steps: the bamboo branches and leaves of the moso bamboo have larger specific surface area which can provide sufficient film forming area and contact area for microorganisms; the second is as follows: the bamboo branch and leaf surface of the moso bamboo has enough roughness for easy microbial biofilm formation growth and better wettability and biological activity; the third is: the bamboo branch and leaf biological filler prepared from the bamboo branches and leaves of the moso bamboo has larger void ratio, so that the penetration resistance of fluid is small, the pressure drop is small, and the energy consumption is low; the fourth step is: the bamboo branches and leaves of the moso bamboo are light in weight and have certain mechanical strength and biological stability; and the fifth is: the material is easy to obtain, the price is low, and the transportation and the installation are convenient;
2. the quicklime dissolving solution is soaked to be beneficial to adjusting the pH value of the biological filler, the branches and leaves of the moso bamboo are slightly acidic, and the pH value of the moso bamboo serving as a biological filler carrier is changed into neutral and slightly alkaline to be more beneficial to film formation and microbial growth;
3. the invention adjusts various parameters, such as aeration time, flow rate regulation and control, pH, Xenocypris bleeker culture quantity, biological filler input quantity, microbial flora input and the like, so as to form a biological biofilm on the surface of the filler, purify the water quality by using the biofilm, treat the fallen biofilm by using Xenocypris bleeker, and regularly add microorganisms to maintain the biofilm.
Drawings
FIG. 1 is a schematic structural view of an embodiment of an ecological floating bed in the present application;
FIG. 2 is a schematic structural view of an embodiment of the ecological floating bed in the present application;
FIG. 3 is a schematic plan view of an embodiment of the ecological floating bed in the present application;
fig. 4 is a schematic structural diagram of an embodiment of the ecological floating bed in the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the directions or positional relationships indicated by "upper", "lower", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
Example one
As shown in fig. 1-3, the present embodiment provides a method for cleaning water in an aquaculture pond based on bamboo branch and leaf biological fillers, which comprises the following steps:
s1: placing the bamboo branches and leaves 1 into a bag 2 formed by a net to prepare the bamboo branch and leaf biological filler; the tightness of the bamboo branches and leaves 1 is based on that the bamboo branches and leaves 1 do not have frequent displacement friction in a water flow state; soaking the bamboo branches and leaves 1 in supernatant of quicklime dissolving liquid for 120 minutes at 20 ℃; the tightness of the bamboo branches and leaves 1 is determined by that the bamboo branches and leaves 1 do not have frequent displacement friction in a water flow state, and the tightness of the bamboo branches and leaves 1 meets the condition that the placement density of the bamboo branches and leaves 1 in the bag 2 is between 30 kilograms per cubic meter and 38 kilograms per cubic meter; the mass ratio of the mass of the lateral branches, the small branches and the leaf branches to the mass of the bamboo branches and leaves is 1: 1;
s2: preparing an ecological floating bed, suspending the ecological floating bed prepared in the step in an aquaculture pond, and finishing biofilm formation on the surfaces of the bamboo branches and leaves 1 by using strains with water purification capacity in the aquaculture pond to form a biofilm; the ecological floating bed comprises a microporous aeration disc 6 and a net cage 4, the net cage 4 is arranged on the microporous aeration disc 6, and a gap of at least 20cm is kept between the microporous aeration disc 6 and the bottom of the aquaculture pond; the upper part of the net cage 4 is provided with a floater 3, the bottom of the net cage is provided with a sinker 5, and the inside of the net cage is provided with an air duct 8 and the bamboo branch and leaf biological filler; the air duct 8 is connected with the microporous aeration disc 6;
s3: and (3) water cleaning treatment:
aerating the bamboo branch and leaf biological filler to form a water flow carrying air bubbles and flowing through the bamboo branch and leaf biological filler from bottom to top, and performing water cleaning treatment on the water flow flowing through the bamboo branch and leaf biological filler by using the biological film:
-the micro-porous aeration disc 6 is closed for 8 hours every 8 hours it is opened;
-adding a strain with water purification capacity near the bamboo branch and leaf bio-filler every 240 hours;
-maintaining the pH of the aquaculture pond between 7 and 8.5;
-breeding a xenocypris in the breeding pond to remove the sloughed off biofilm; the breeding amount of the Ictalurus davidi is that 1 Ictalurus davidi fish is needed for each 50kg of main breeding fish;
the flow rate of the water flow is controlled to be 2 cm/s.
In this example, the amount of biological filler was obtained by the following method:
A. calculating the required total biofilm formation area according to the amount of the main cultured fish:
S0=[（bm×fr/f)×pc×k1/t）]/frem；
bm is the biomass of the main fish, namely the total mass of the fish;
fr is the feeding rate of feed every day, such as cultured fish a kg, and b kg of feed is fed every day, the feeding rate is (b/a) × 100%;
f is the feeding frequency of the feed every day;
pc is the proportion of protein in the feed;
k1 is the conversion ratio of protein to total ammonia nitrogen;
t is the time required for converting the feed into total ammonia nitrogen;
frem is the ammonia nitrogen removal rate of the filler per unit area;
example is calculated according to the ideal case: the nitrogen content in the protein is 16%; 80% of the nitrogen in the protein is digested by the fish; excrement and feed residue are quickly discharged out of the system without being decomposed; 80% of the digested nitrogen will be excluded.
Then, pc = 16%; k1=80% × 80%; frem =0.56 grams per cubic meter per day (filler parameter);
therefore, the total biofilm formation area can be calculated;
B. calculating the total amount of the required biological filler;
according to the technical common knowledge in the field, on the basis of the biological filler with the specification, the general biofilm culturing method is combined, so that the following can be obtained: the total mass of the biological filler is in direct proportion to the total biofilm formation area;
the total mass of the biological filler can be calculated;
C. calculating to obtain a theoretical filler coefficient;
the filling coefficient refers to the filling required by the cultured fishes and is also a corresponding relation; according to the steps, the biomass of the fish and the mass of the required biological filler are known, and then the theoretical filler coefficient is easy to obtain;
D. based on theoretical filler coefficient, correcting by combining with a test;
E. the finally obtained filler coefficient, also called the conversion ratio, is 0.20 ~ 0.30.30, in the embodiment is 0.25, and the meaning is that if the maximum output of pond culture is 1000 kilograms of fish per mu, 250 kilograms of moso bamboo branches and leaves are needed, and 10 net cages are needed as ecological floating beds according to the calculation of 25 kilograms of total weight of branches and leaves in each net cage respectively.
The following is a specific embodiment of the method for cleaning the water of the aquaculture pond based on the bamboo branch and leaf biological filler, which is applied by the application:
as shown in fig. 1-3, in the present embodiment, micropterus salmoides are cultured in a culture pond with an area of 1 mu, the culture yield of the micropterus salmoides is 1000 kg, bamboo branches and leaves 1 are selected from bamboo branches and leaves of moso bamboos with the growth age of 3 years, and the bamboo branches and leaves 1 comprise lateral branches, small branches, leaf branches and bamboo leaves; the mass ratio of the lateral branches, the small branches, the leaf branches and the bamboo leaves is 1: 1. the bag 2 is made into a long cylindrical barrel shape with the bottom diameter of 20cm and the height of 90cm by adopting a 40-mesh nylon knotless net, in the embodiment, the placing density of the bamboo branches and leaves 1 in the bag 2 is 35 kilograms per cubic meter so that the placing tightness of the bamboo branches and leaves 1 in the bag 2 can ensure that the bamboo branches and leaves 1 do not generate frequent displacement friction under the water flow state, and the mass of the bamboo branches and leaves placed in each bag 2 is calculated to be 1 kilogram. Putting 1kg of bound bamboo branches and leaves 1 into the bag 2, and soaking the bag 2 with the bamboo branches and leaves in supernatant of quicklime solution with pH value of 11 for 240 minutes at 20 ℃ to remove biological greasy substances in the bamboo branches and leaves 1.
Preparing an ecological floating bed, placing the ecological floating bed prepared in the step in an aquaculture pond, finishing biofilm formation on the surfaces of the bamboo branches and leaves 1 by using strains with water purification capacity in the aquaculture pond to form a biofilm, wherein the ecological floating bed comprises a microporous aeration disc 6 and a net cage 4, and the net cage 4 is arranged on the microporous aeration disc 6. In the embodiment, the net cage 4 is a square nylon knotless net cage with a mesh of 1.6cm, the length, width and height of the net cage 4 are all 100cm, the air guide pipe 8 and the bamboo branch and leaf biological filler are arranged in the net cage 4, and the quantity of the bamboo branch and leaf biological filler in the net cage 4 is just 25. The upper part of the net cage is provided with a floater 3, the bottom part is provided with a sinker 5, and the inside is provided with an air duct 8 and the bamboo branch and leaf biological filler. A gap of 20cm is kept between the microporous aeration disc 6 and the bottom of the aquaculture pond; the air duct 8 is connected with the microporous aeration disc 6; controlling the pH value of the aquaculture pond to be 7.5, aerating the bamboo branch and leaf biological filler by the microporous air disc 6 to form a water flow which carries air bubbles and flows through the bamboo branch and leaf biological filler from bottom to top, and performing water cleaning treatment on the water flow flowing through the bamboo branch and leaf biological filler by utilizing the biological membrane. The microporous aeration disk 6 is closed for 8 hours every 8 hours of opening, and the flow velocity of water flow generated by aeration is controlled to be 2cm/s during aeration.
In this example, bacteria having water purification ability were added to the vicinity of the bamboo shoot/leaf bio-filler every 240 hours.
In this embodiment, the amount of the bamboo branch and leaf biological filler required is represented by the formula T4: pta = bm × k2/pm1, from which the mass of the individual bamboo branches and leaves biological filler can be approximated by 1kg, i.e. pm1=1 kg. K2=0.25 is taken, the biomass of the fish is expressed by the culture yield of the fish, namely bm =1000 kg, so that the number of the bamboo branch and leaf biological fillers required is 250 according to the formula T4, and each ecological floating bed contains 25 bamboo branch and leaf biological fillers, so that 10 net cages are required as the ecological floating bed in total.
In this embodiment, the xenocypris davidi bleekers are cultured in the culture pond Tang to remove the fallen off biofilm, and the culture amount of the xenocypris davidi bleekers is calculated by the formula T1: dm = bm/k, where the k value is 50kg of cultured fish/tail, and the biomass of the fish is expressed by the culture yield of the fish, i.e., bm =1000 kg, so in this example, the culture yield of the silver catfish is 20 tails according to formula T1.
The technical scheme has the advantages of simple operation, low cost and simple and easily-obtained materials. Because a plurality of biological greasy substances and other non-cellulose components exist on the surface of the natural bamboo branches and leaves 1, the adsorption capacity of the bamboo branches and leaves 1 is influenced, the biological greasy substances on the surface of the bamboo branches and leaves 1 are removed, and the adsorption capacity and the specific surface area of the bamboo branches and leaves 1 are improved. In this example, the hydrophilic property of the moso bamboo is good, and the bamboo branches and leaves 1 are almost completely soaked after 24 hours. The bamboo branches and leaves 1 are fast in film hanging speed, a certain amount of viscous tawny biological films appear on the surfaces after 120 hours, and the film hanging is basically completed after 360 hours, so that the biological films are formed, and the COD (chemical oxygen demand) is treatedCrAnd NH+ 4-removal rate of N inMore than 72 percent.
Example two
As shown in fig. 4, in the present embodiment, the cultivation yield of fish in the cultivation pond is 1000 kg, the bamboo branch and leaf 1 is selected from bamboo branch and leaf of moso bamboo with the growth age of 3 years, and the bamboo branch and leaf 1 includes lateral branch, twig, leaf branch and bamboo leaf; the mass ratio of the lateral branches to the small branches to the leaf branches is 1: 1. the bag 2 is made into a long cylindrical shape with the bottom diameter of 20cm and the height of 90cm by adopting a 40-mesh nylon knotless net, in the embodiment, the placing density of the bamboo branches and leaves 1 in the bag 2 is 32 kilograms per cubic meter so that the placing tightness of the bamboo branches and leaves 1 in the bag 2 can ensure that the bamboo branches and leaves 1 do not generate frequent displacement friction under the water flow state, and the mass of the bamboo branches and leaves placed in each bag 2 is calculated to be about 0.9 kilogram. The three groups of bound bamboo branches and leaves 1 with the total weight of 0.9kg are placed into a bag 2, and the upper and lower adjacent groups of bamboo branches and leaves 1 are connected end to end, so that the discharge direction of the three groups of bamboo branches and leaves 1 is consistent with the flow direction of air flow generated by aeration of an aeration disc 6. Soaking the capsular bag 2 containing the bamboo branches and leaves 1 in supernatant of quicklime solution with pH of 10 at 22 deg.C for 200 min to remove biological greasy substances in the bamboo branches and leaves 1.
Preparing an ecological floating bed, placing the ecological floating bed prepared in the step in an aquaculture pond, finishing biofilm formation on the surfaces of the bamboo branches and leaves 1 by using strains with water purification capacity in the aquaculture pond to form a biofilm, wherein the ecological floating bed comprises a microporous aeration disc 6 and a net cage 4, and the net cage 4 is arranged on the microporous aeration disc 6. In the embodiment, the net cage 4 is a square nylon knotless net cage with a mesh of 1.9cm, the length, width and height of the net cage 4 are all 100cm, the air guide pipe 8 and the bamboo branch and leaf biological filler are arranged in the net cage 4, and the quantity of the bamboo branch and leaf biological filler in the net cage 4 is just 25. The upper part of the net cage is provided with a floater 3, the bottom part is provided with a sinker 5, and the inside is provided with an air duct 8 and the bamboo branch and leaf biological filler. A gap of at least 20cm is kept between the microporous aeration disc 6 and the bottom of the aquaculture pond; the air duct 8 is connected with the microporous aeration disc 6; controlling the pH value of the aquaculture pond to be 7, aerating the bamboo branch and leaf biological filler by the microporous air disc 6 to form a water flow which carries air bubbles and flows through the bamboo branch and leaf biological filler from bottom to top, and performing water cleaning treatment on the water flow flowing through the bamboo branch and leaf biological filler by utilizing the biological film. The microporous aeration disk 6 is closed for 6 hours every 6 hours of opening, and the flow velocity of water flow generated by aeration is controlled to be 3cm/s during aeration.
In this example, bacteria having water purification ability were added to the vicinity of the bamboo shoot/leaf bio-filler every 200 hours.
In this embodiment, the amount of the bamboo branch and leaf biological filler required is represented by the formula T4: pta = bm × k2/pm1, from which it is known that the mass of individual bamboo branches and leaves biological filler can be approximately 0.9kg, i.e. pm1=0.9 kg. K2=0.20 is taken, the biomass of the fish is expressed by the breeding yield of the fish, namely bm =1000 kg, so that the number of the required bamboo branch and leaf biological fillers is about 222.222 according to the formula T4, and each ecological floating bed is provided with 25 bamboo branch and leaf biological fillers, so that 9 net cages are required as the ecological floating bed in total, and the number of the bamboo biological fillers can reach 225, just slightly exceeding 222.222.
In this embodiment, the xenocypris davidi bleekers are cultured in the culture pond Tang to remove the fallen off biofilm, and the culture amount of the xenocypris davidi bleekers is calculated by the formula T1: dm = bm/k, where k is 40 kg of cultured fish/tail, and biomass of fish is expressed by the culture yield of fish, that is, bm =1000 kg, so in this example, the culture yield of xenocypris 25 tails according to formula T3.
In this embodiment, compared to embodiment 1, the flexibility of the placement manner of the bamboo branches and leaves is realized by dividing the bamboo branches and leaves 1 in each pocket into a plurality of groups for placement.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A water cleaning method for an aquaculture pond based on bamboo branch and leaf biological fillers is characterized by comprising the following steps:
s1, placing bamboo branches and leaves into a bag formed by a mesh to prepare the bamboo branch and leaf biological filler, wherein the tightness of the bamboo branches and leaves is subject to the condition that the bamboo branches and leaves are not subjected to frequent displacement and friction in a water flow state, and the bamboo branches and leaves are soaked in supernatant of quicklime dissolving liquid for 100 ~ 280 minutes at the soaking temperature of 15 ~ 25 ℃;
s2: preparing an ecological floating bed, suspending the ecological floating bed prepared in the step in an aquaculture pond, and finishing biofilm formation on the surfaces of the bamboo branches and leaves by using strains with water purification capacity in the aquaculture pond; the ecological floating bed comprises a microporous aeration disc and a net cage, the net cage is arranged on the microporous aeration disc, and a gap of at least 20cm is kept between the microporous aeration disc and the bottom of the aquaculture pond; the upper part of the net cage is provided with a floater, the bottom of the net cage is provided with a sinker, and the inside of the net cage is provided with an air duct and the bamboo branch and leaf biological filler; the air duct is connected with the microporous aeration disc;
s3: and (3) water cleaning treatment:
aerating the bamboo branch and leaf biological filler to form a water flow carrying air bubbles and flowing through the bamboo branch and leaf biological filler from bottom to top, and performing water cleaning treatment on the water flow flowing through the bamboo branch and leaf biological filler by utilizing the biological film.
2. The method for cleaning water in an aquaculture pond according to claim 1, wherein after the biofilm is formed in S2, the method further comprises the following steps:
adding strains with water purifying capability near the bamboo branch and leaf biological filler every 150 ~ 300 hours, and adjusting the pH value of the culture pond to 7-8.5 to keep a certain amount of strains with water purifying capability.
3. The aquaculture pond water cleaning method according to claim 2, further comprising:
s4: culturing a silver catfish in the culture pond to remove the sloughed off biofilm.
4. The method for cleaning water in the aquaculture pond according to claim 3, wherein in the S4, the culture amount of the Ictalurus argenteus is calculated according to the formula T1: Dm = bm/k, in the formula T1, the Dm is the culture amount of the Ictalurus argenteus, the bm is the biomass of fish, the k is a conversion ratio, and the value of the k is 40 ~ 60 kg cultured fish/tail.
5. The method for cleaning water in the aquaculture pond according to any one of claims 1 to 4, wherein the bamboo branches and leaves put into the bag formed by the net in S1 are vertically bundled bamboo branches and leaves; the bag cavity of the bag is cylindrical, and the bundled bamboo branches and leaves are cylindrical.
6. The method for cleaning water in the aquaculture pond according to claim 5, wherein the flow rate of the water flow in the S3 is controlled to be 1 ~ 3 cm/S.
7. The method for cleaning water in the aquaculture pond according to claim 6, wherein the bamboo branches and leaves in S1 are the bamboo branches and leaves of moso bamboos growing for 3 years; the bamboo branches and leaves comprise lateral branches, small branches, leaf branches and bamboo leaves; the mass ratio of the mass of the lateral branches, the small branches and the leaf branches to the mass of the bamboo leaves is 1: 1.
8. the method for cleaning water in an aquaculture pond of claim 7, wherein,
the quantity of the required bamboo branch and leaf biological fillers is represented by the formula T2: ptan = S0Is given by/S, wherein the S0From equation T3: s0=[（bm×fr/f)×pc×k1/t）]The/frem is given; in the formula T2, Ptan is the quantity of the required bamboo branch and leaf biological filler, and S0The required biological biofilm formation area is obtained, and S is the biological biofilm formation area of a single bamboo branch and leaf biological filler; in the formula T3, bm is the biomass of fish, fr is the feeding rate of feed per day, f is the feeding times of feed per day, pc is the proportion of protein in the feed, and k1 is the conversion of protein into total ammonia nitrogenThe t is the time required by converting the feed into total ammonia nitrogen, and the frem is the ammonia nitrogen removal rate of the filler in unit area;
the conversion ratio k2 is calculated by the formula T4: the ptan = bm × k2/pm1, in the formula T4, is given by the formula T2 and is obtained by practical adjustment; bm is the biomass of fish, pm1 is the mass of biological filler of single bamboo branch and leaf, and K2 is the conversion ratio, namely the mass of the biological filler required by cultured fish per unit mass.
9. The method for cleaning water in an aquaculture pond according to claim 8, wherein the value of k2 is 0.20 ~ 0.30.30.
10. The method for cleaning water in the aquaculture pond according to claim 1, wherein the bamboo branches and leaves in the bag are provided with a plurality of groups, the discharge direction of the plurality of groups of bamboo branches and leaves is consistent with the aeration flow direction, and the upper and lower adjacent groups of bamboo branches and leaves are connected end to end.
CN201910850482.2A 2019-09-10 2019-09-10 Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler Pending CN110683634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910850482.2A CN110683634A (en) 2019-09-10 2019-09-10 Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910850482.2A CN110683634A (en) 2019-09-10 2019-09-10 Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler

Publications (1)

Publication Number Publication Date
CN110683634A true CN110683634A (en) 2020-01-14

Family

ID=69108905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910850482.2A Pending CN110683634A (en) 2019-09-10 2019-09-10 Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler

Country Status (1)

Country Link
CN (1) CN110683634A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772653A (en) * 2005-09-21 2006-05-17 陈勇 Stuffing and configuration of anaerobic reactor
CN101333034A (en) * 2008-05-21 2008-12-31 中国水产科学研究院淡水渔业研究中心 Method for constructing purifying water by constructing microbe film in pond by using elastic filler
CN102674556A (en) * 2012-05-24 2012-09-19 河海大学 Composite ecological floating bed for providing biotope
CN103145236A (en) * 2013-02-26 2013-06-12 宜兴市氿润环保研究所有限公司 Course bamboo fiber sewage treatment filler and preparation method thereof
CN204180731U (en) * 2014-10-29 2015-03-04 徐州工程学院 A kind of fish jar with self-cleaning function
CN204824369U (en) * 2015-09-09 2015-12-02 杭州问源节能环保技术有限公司 Coupling micropore aeration's ecological bed that floats
CN107047429A (en) * 2016-12-30 2017-08-18 黎清华 VHD industrializes pond ecological breeding system and its regulation and control method
CN108928927A (en) * 2018-07-30 2018-12-04 中冶华天工程技术有限公司 The mobile black smelly Water Ecological Recovery device and method in river

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772653A (en) * 2005-09-21 2006-05-17 陈勇 Stuffing and configuration of anaerobic reactor
CN101333034A (en) * 2008-05-21 2008-12-31 中国水产科学研究院淡水渔业研究中心 Method for constructing purifying water by constructing microbe film in pond by using elastic filler
CN102674556A (en) * 2012-05-24 2012-09-19 河海大学 Composite ecological floating bed for providing biotope
CN103145236A (en) * 2013-02-26 2013-06-12 宜兴市氿润环保研究所有限公司 Course bamboo fiber sewage treatment filler and preparation method thereof
CN204180731U (en) * 2014-10-29 2015-03-04 徐州工程学院 A kind of fish jar with self-cleaning function
CN204824369U (en) * 2015-09-09 2015-12-02 杭州问源节能环保技术有限公司 Coupling micropore aeration's ecological bed that floats
CN107047429A (en) * 2016-12-30 2017-08-18 黎清华 VHD industrializes pond ecological breeding system and its regulation and control method
CN108928927A (en) * 2018-07-30 2018-12-04 中冶华天工程技术有限公司 The mobile black smelly Water Ecological Recovery device and method in river

Similar Documents

Publication Publication Date Title
CN108439711A (en) A kind of marine culture waste water integrated treatment purification system and method
CN101606506A (en) The circulating water culture system of intensification
CN106976985B (en) A kind of Tiny ecosystem floating bed and its application method for water body purification of aquaculture
CN101300965A (en) Industrial circulating water aquiculture system
CN101331860A (en) Method and device for culturing rice field eel
CN103563818A (en) Phycomycete water prawn circulating aquaculture system
CN103964639A (en) Water circulating ecological system for aquaculture
CN113213710A (en) Seawater factory greenhouse aquaculture penaeus vannamei tail water treatment system and method
CN105274029B (en) A kind of Nitrobacter winogradskyi and nitrobacteria-denitrifying bacteria composite bacteria agent and production method and application
CN109835987B (en) Surface flow-vertical subsurface flow constructed wetland treatment process
Browdy et al. Shrimp culture in urban, super-intensive closed systems.
CN106587356B (en) Biological membrane preparation method
CN106035190A (en) Dual-channel water processing method of factory-like circulating sea water system
CN108064796A (en) A kind of box for breeding, auto purification ecological cultivation system and cultural method
CN102295394B (en) Culture method of microbial film in biological-filtering pool for lobworm
CN109937924B (en) Breeding method for improving quality of euryhaline fishes in low-salinity area
CN110024733A (en) A kind of litopenaeus vannamei Ecological Industrial cultural method and system
CN108862610B (en) Device for cultivating microalgae by using sewage and manufacturing method thereof
CN106465695B (en) A kind of enhanced ecological base and preparation method thereof
CN205455446U (en) Fresh water wheel animalcule system that cultivates
CN108585204A (en) A kind of sewage disposal biofilm carrier device and its application method based on soybean stalk
CN110683634A (en) Water cleaning method for aquaculture pond based on bamboo branch and leaf biological filler
CN217677008U (en) Biological incubation water purification platform for in-situ restoration of water ecosystem
CN109601447A (en) A kind of System and method for for realizing biological flocculation resource utilization
CN105613433B (en) Freshwater rotifer breeding method and system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200114

RJ01 Rejection of invention patent application after publication