CN112299643A - Aquatic product ecological circulation method without wastewater discharge - Google Patents
Aquatic product ecological circulation method without wastewater discharge Download PDFInfo
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- CN112299643A CN112299643A CN201911181319.8A CN201911181319A CN112299643A CN 112299643 A CN112299643 A CN 112299643A CN 201911181319 A CN201911181319 A CN 201911181319A CN 112299643 A CN112299643 A CN 112299643A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002351 wastewater Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 268
- 238000006243 chemical reaction Methods 0.000 claims abstract description 108
- 238000000746 purification Methods 0.000 claims abstract description 107
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 238000011282 treatment Methods 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 239000010865 sewage Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 17
- 230000000813 microbial effect Effects 0.000 claims description 12
- 241000251468 Actinopterygii Species 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- 238000010517 secondary reaction Methods 0.000 claims description 9
- 235000015170 shellfish Nutrition 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 7
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 6
- 210000002469 basement membrane Anatomy 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 230000000475 sunscreen effect Effects 0.000 claims description 6
- 239000000516 sunscreening agent Substances 0.000 claims description 6
- 238000005842 biochemical reaction Methods 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 210000004379 membrane Anatomy 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims description 3
- 238000009395 breeding Methods 0.000 claims description 3
- 230000001488 breeding effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 235000016709 nutrition Nutrition 0.000 claims description 3
- 230000035764 nutrition Effects 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000002910 solid waste Substances 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000001546 nitrifying effect Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 4
- 238000001914 filtration Methods 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 6
- 238000009360 aquaculture Methods 0.000 description 5
- 244000144974 aquaculture Species 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 240000008436 Ipomoea aquatica Species 0.000 description 2
- 235000019004 Ipomoea aquatica Nutrition 0.000 description 2
- 244000211187 Lepidium sativum Species 0.000 description 2
- 235000007849 Lepidium sativum Nutrition 0.000 description 2
- 241001261506 Undaria pinnatifida Species 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- 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
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of sewage treatment in the aquatic product industry, in particular to an aquatic product ecological cycle method without waste water discharge; the method comprises the following steps: the cistern, breed pond, one-level reaction tank and the second grade reaction tank that will establish ties into the return circuit in series, the cistern passes through inlet tube and drain pipe intercommunication self-purification pond, and the self-purification pond passes through the ecological biological clean water reservoir of pipeline intercommunication, and ecological biological clean water reservoir top is provided with heat absorption heat preservation ventilated membrane, and this circulation system actually contains two sets of circulation subsystems, and one is: the physicochemical filtration of the circular filtration formed by the reservoir, the culture pond, the first-stage reaction pond and the second-stage reaction pond; the other one is that: biological self-purification filtration formed by the self-purification pool and the ecological biological water purification pool, the two subsystems operate in a crossed mode and cannot interfere with each other, and bait residues and biological corpses are removed through biological filtration, so that impurities in internal circulation are reduced, and filtration burden is relieved.
Description
Technical Field
The invention relates to the technical field of sewage treatment in the aquatic product industry, in particular to an aquatic product ecological cycle method without waste water discharge.
Background
In the industrial intensive aquaculture production, the water body is mainly and difficultly recycled, and part of enterprises even put forward a high-end standard without wastewater discharge. For example, chinese patent discloses an intermittent industrial recirculating aquaculture method, patent No. 201811005939.1, in which: the biochemical reaction of the aquaculture water with different water qualities is realized, after the aquaculture water purified in the secondary reaction tank is discharged, the biochemical reaction is still kept in the primary reaction tank, enough microorganisms are cultured for the next circulation, the treatment time of the primary treatment tank is prolonged, the utilization efficiency of the microorganisms on water body nutrient substances is improved, the energy consumption required by continuous circulation of the water body is reduced, and the aquaculture cost is reduced.
According to the technical scheme and the prior art, harmful substances such as aquatic carcasses, dead eggs, feed scraps, microorganism carcasses and the like which are inevitably generated in a water body are difficult to eliminate, and the harmful substances are more and more after long-term filtration and are difficult to eliminate.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an energy-saving method capable of eliminating harmful substances such as aquatic carcasses, dead eggs, feed scraps, microorganism carcasses and the like in a water body.
The technical scheme of the invention is as follows:
an aquatic product ecological cycle method without wastewater discharge is characterized in that: it comprises the following steps:
the method comprises the following steps that firstly, a reservoir, a culture pond, a primary reaction pond and a secondary reaction pond which are connected in series to form a loop are connected, the reservoir is communicated with a self-purification pond through a water inlet pipe and a water outlet pipe, water is discharged from the self-purification pond to the reservoir when the water level of the reservoir is lower than that of the self-purification pond, otherwise, the reservoir discharges water to the self-purification pond, and the self-purification pond is communicated with an ecological biological water purification pond through a pipeline, wherein a heat absorption and heat preservation breathable film is arranged at the top of the ecological biological water purification pond, so that the water in the reservoir; the culture pond drains water into the first-stage reaction pond, and when the culture pond drains water into the first-stage reaction pond, the water storage pond supplies water into the culture pond to maintain the water level in the culture pond constant;
step two, when the culture pond drains water into the first-stage reaction pond, the first-stage reaction pond drains water into the second-stage reaction pond, when the water levels in the first-stage reaction pond and the second-stage reaction pond reach set heights, the culture pond and the first-stage reaction pond stop draining, and the first-stage reaction pond and the second-stage reaction pond simultaneously treat culture water;
after the treatment of the culture water in the second-stage reaction tank is finished, separating the first-stage reaction tank from the second-stage reaction tank, discharging the culture water in the second-stage reaction tank into a reservoir for storage, and continuously treating the culture water by the first-stage reaction tank until the next water discharge of the culture tank;
and step four, repeating the steps from one to three.
Specifically, in the water discharging stage of the culture pond, an electric butterfly valve is electrified, and culture water in the primary reaction pond flows into the secondary reaction pond; then, starting a water pump between the culture pond and the first-stage reaction pond, pumping culture water of the culture pond into the first-stage reaction pond, enabling the culture water to flow into the second-stage reaction pond through an electric butterfly valve, and stopping the water pump when the liquid level reaches a set position; aerating the first-stage reaction tank and the second-stage reaction tank to perform biochemical reaction and precipitating to perform solid-liquid separation; after the precipitation is finished, starting a water pump between the secondary reaction tank and the reservoir to drain water to the reservoir; and when the culture pond drains water, the water pump between the water storage tank and the culture pond is started to add culture water into the culture pond from the water storage tank, so that the water level of the culture pond is kept constant.
Specifically, the bottom of the self-purification tank is inclined towards the center from the periphery to form a funnel shape, and a drain outlet at the bottom end of the self-purification tank is communicated with the ecological biological water purification tank through a drain pipe so that sewage discharged from the self-purification tank directly flows into the ecological biological water purification tank; an artificial floating island is arranged on a water body contained in the ecological biological water purification tank, and economic aquatic plants (such as water spinach, cress, undaria pinnatifida and the like) with developed roots are planted on the artificial floating island to absorb components such as ammonia nitrogen, nitrite and the like in the water body; sand with the thickness of ten centimeters and the particle size of less than one centimeter is paved at the bottom of the ecological biological water purification tank, a soil layer microbial filter bed is formed on an underground soil layer below the sand, an open vertical shaft with the depth of five meters is arranged in the center of the ecological biological water purification tank, the well mouth of the open vertical shaft is higher than the water surface in the ecological biological water purification tank to prevent the water body in the ecological biological water purification tank from flowing backwards, the well mouth of the open vertical shaft to two meters below the soil layer are of a fully-closed pipe body structure to isolate the water body in the ecological biological water purification tank from the water body in the ecological biological water purification tank to the water body which is incompletely purified in the soil layer shallow layer, a porous water filter pipe and a submersible pump are arranged at the lower end of the, the water purifier is used for pumping water purified by the soil layer microbial filter bed in the open vertical shaft back to the self-purification tank, and the water inlet device is sleeved with the Venturi oxygen increasing pipe for injecting oxygen when being matched with a submersible pump for pumping water.
Specifically, clear water is injected into the self-cleaning pool and the ecological biological water purification pool, and the water surface heights in the two pools are consistent under the condition that the drainage pipes are communicated; sterilizing according to the conventional method, fertilizing water, then breeding fishes in the self-cleaning pool, starting a submersible pump to pump water into the self-cleaning pool after 1 day of bait feeding, and automatically flowing water in the self-cleaning pool into the ecological biological water purification pool through a drain pipe in order to keep water balance when the water surface in the self-cleaning pool is higher than the ecological biological water purification pool; the submersible pump and the Venturi oxygenation pipe suck a large amount of air into the self-purification pool along with water flow through the Venturi pipe principle while injecting water, and solid dirt such as residual bait, fish excrement, animal and plant corpses and the like in the self-purification pool is gradually aggregated to the center of the pool bottom under the hydraulic impact and is discharged into the ecological biological water purification pool along with water flow through the discharge pipe; the solid waste discharged from the cleaning pool provides nutrition for the shellfish in the ecological biological water purification pool, and soluble protein, ammonia nitrogen, nitrite and the like dissolved in water provide culture agents for plants on the artificial floating island or are absorbed by microalgae in the ecological biological water purification pool for reproduction, so that protozoa are driven to grow in large quantity to bring abundant bait for the shellfish; the water discharged from the purifying pond is digested and absorbed by each ecological system in the ecological biological purifying pond, so that the waste utilization and the three-dimensional culture of fish and shellfish are realized, and the space, the water body and the oxygen are not contended among each other, so that the culture water body is primarily purified; the water in the ecological biological water purification tank is filtered by sand at the bottom of the tank to slowly leak and enter a soil layer microbial filter bed below the ecological biological water purification tank, and the water in the ecological biological water purification tank is thoroughly purified under the action of the soil layer and strong microbial flora of the soil layer; the submersible pump pumps purified water in the open vertical shaft into the self-purification tank for secondary cultivation and utilization, so that the circulation of water body utilization, purification and reutilization is realized.
Furthermore, elastic fillers are arranged in the first-stage reaction tank and the second-stage reaction tank.
Further, in the second step, ammonifying bacteria, nitrifying bacteria and denitrifying bacteria are put into the first-stage reaction tank and the second-stage reaction tank.
And further, in the second step, feeding feed powder and brown sugar into the first-stage reaction tank and the second-stage reaction tank.
And further, in the second step, the first-stage reaction tank and the second-stage reaction tank are aerated by arranging a diaphragm type aeration pipe.
And further, in the second step, aerating for three hours in the second-stage reaction tank, then closing the membrane type aeration pipe, standing and precipitating for one hour, and performing solid-liquid separation.
Furthermore, an electric butterfly valve is arranged between the first-stage reaction tank and the second-stage reaction tank to control the on-off of water flow.
Specifically, the heat absorption and heat preservation breathable film is an anti-exposure heat preservation breathable greenhouse film, wherein the greenhouse film comprises a woven mesh-shaped bottom film, a plurality of wavy covering films covering the bottom film and a sun screen; one side of the wave-shaped coating is fixed on the basement membrane, and the other side of the wave-shaped coating is fixed on the adjacent wave-shaped coating through the porous breathable pad; the two adjacent wavy covered films form a ventilation port through the porous ventilation pad, and the direction of the ventilation port faces the ground; heat preservation particles are filled in an interlayer formed between the base film and the covering film; the top of the greenhouse film is connected with the sun-proof nets through the vertical lock seams, and the sun-proof nets are arranged on two sides of the vertical lock seams. Wherein the porous breathable pad is a porous sponge; the sunscreen mesh is a black hydrophilic mesh; the knitted reticular basement membrane is knitted by a needle mode. The heat preservation particles are transparent PE particles; the average thickness of the greenhouse film is zero five centimeters, the width of the wavy covering film is five centimeters, and the average particle size of the heat-insulating particles is zero three centimeters; the top both sides of vertical lock seam are provided with fixed locked groove, and sun-proof net is close to the downside position of vertical lock seam and is provided with the fixed tapered end that matches with fixed locked groove, can be with fixed tapered end joint to fixed locked groove in through rolling up sun-proof net, can pack up sun-proof net.
The invention has the beneficial effects that: the circulating system actually comprises two sets of circulating subsystems, one is as follows: the physicochemical filtration of the circular filtration formed by the reservoir, the culture pond, the first-stage reaction pond and the second-stage reaction pond; the other one is that: biological self-purification filtration formed by the self-purification pool and the ecological biological water purification pool, the two subsystems operate in a crossed mode and cannot interfere with each other, and bait residues and biological corpses are removed through biological filtration, so that impurities in internal circulation are reduced, and filtration burden is relieved.
Detailed Description
The following is further described in conjunction with the detailed description:
an aquatic product ecological cycle method without waste water discharge comprises the following steps:
step one, a reservoir, a culture pond, a first-stage reaction pond and a second-stage reaction pond which are connected in series to form a loop are provided, and elastic fillers are arranged in the first-stage reaction pond and the second-stage reaction pond.
The water storage tank is communicated with the self-purification tank through a water inlet pipe and a water outlet pipe, water is discharged from the self-purification tank to the water storage tank when the water level of the water storage tank is lower than that of the self-purification tank, otherwise, the water storage tank discharges water to the self-purification tank, and the self-purification tank is communicated with the ecological biological water purification tank through a pipeline, wherein the top of the ecological biological water purification tank is provided with a heat absorption and heat preservation breathable film which absorbs solar energy to enable water in the water storage tank to be hot and; the culture pond drains water into the first-stage reaction pond, and when the culture pond drains water into the first-stage reaction pond, the water storage pond supplies water into the culture pond to maintain the water level in the culture pond constant; specifically, the bottom of the self-purification tank is inclined towards the center from the periphery to form a funnel shape, and a drain outlet at the bottom end of the self-purification tank is communicated with the ecological biological water purification tank through a drain pipe so that sewage discharged from the self-purification tank directly flows into the ecological biological water purification tank; an artificial floating island is arranged on a water body contained in the ecological biological water purification tank, and economic aquatic plants (such as water spinach, cress, undaria pinnatifida and the like) with developed roots are planted on the artificial floating island to absorb components such as ammonia nitrogen, nitrite and the like in the water body; sand with the thickness of ten centimeters and the particle size of less than one centimeter is paved at the bottom of the ecological biological water purification tank, a soil layer microbial filter bed is formed on an underground soil layer below the sand, an open vertical shaft with the depth of five meters is arranged in the center of the ecological biological water purification tank, the well mouth of the open vertical shaft is higher than the water surface in the ecological biological water purification tank to prevent the water body in the ecological biological water purification tank from flowing backwards, the well mouth of the open vertical shaft to two meters below the soil layer are of a fully-closed pipe body structure to isolate the water body in the ecological biological water purification tank from the water body in the ecological biological water purification tank to the water body which is incompletely purified in the soil layer shallow layer, a porous water filter pipe and a submersible pump are arranged at the lower end of the, the water purifier is used for pumping water purified by the soil layer microbial filter bed in the open vertical shaft back to the self-purification tank, and the water inlet device is sleeved with the Venturi oxygen increasing pipe for injecting oxygen when being matched with a submersible pump for pumping water. Specifically, clear water is injected into the self-cleaning pool and the ecological biological water purification pool, and the water surface heights in the two pools are consistent under the condition that the drainage pipes are communicated; sterilizing according to the conventional method, fertilizing water, then breeding fishes in the self-cleaning pool, starting a submersible pump to pump water into the self-cleaning pool after 1 day of bait feeding, and automatically flowing water in the self-cleaning pool into the ecological biological water purification pool through a drain pipe in order to keep water balance when the water surface in the self-cleaning pool is higher than the ecological biological water purification pool; the submersible pump and the Venturi oxygenation pipe suck a large amount of air into the self-purification pool along with water flow through the Venturi pipe principle while injecting water, and solid dirt such as residual bait, fish excrement, animal and plant corpses and the like in the self-purification pool is gradually aggregated to the center of the pool bottom under the hydraulic impact and is discharged into the ecological biological water purification pool along with water flow through the discharge pipe; the solid waste discharged from the cleaning pool provides nutrition for the shellfish in the ecological biological water purification pool, and soluble protein, ammonia nitrogen, nitrite and the like dissolved in water provide culture agents for plants on the artificial floating island or are absorbed by microalgae in the ecological biological water purification pool for reproduction, so that protozoa are driven to grow in large quantity to bring abundant bait for the shellfish; the water discharged from the purifying pond is digested and absorbed by each ecological system in the ecological biological purifying pond, so that the waste utilization and the three-dimensional culture of fish and shellfish are realized, and the space, the water body and the oxygen are not contended among each other, so that the culture water body is primarily purified; the water in the ecological biological water purification tank is filtered by sand at the bottom of the tank to slowly leak and enter a soil layer microbial filter bed below the ecological biological water purification tank, and the water in the ecological biological water purification tank is thoroughly purified under the action of the soil layer and strong microbial flora of the soil layer; the submersible pump pumps purified water in the open vertical shaft into the self-purification tank for secondary cultivation and utilization, so that the circulation of water body utilization, purification and reutilization is realized.
Step two, when the culture pond drains water into the first-stage reaction pond, the first-stage reaction pond drains water into the second-stage reaction pond, when the water levels in the first-stage reaction pond and the second-stage reaction pond reach set heights, the culture pond and the first-stage reaction pond stop draining, and the first-stage reaction pond and the second-stage reaction pond simultaneously treat culture water; ammoniation bacteria, nitrobacteria and denitrifying bacteria are put into the first-stage reaction tank and the second-stage reaction tank. And feeding feed powder and brown sugar into the first-stage reaction tank and the second-stage reaction tank, aerating the first-stage reaction tank and the second-stage reaction tank by arranging the membrane type aeration pipes, aerating for three hours in the second-stage reaction tank, then closing the membrane type aeration pipes, and standing and precipitating for one hour to perform solid-liquid separation.
After the treatment of the culture water in the second-stage reaction tank is finished, separating the first-stage reaction tank from the second-stage reaction tank, discharging the culture water in the second-stage reaction tank into a reservoir for storage, and continuously treating the culture water by the first-stage reaction tank until the next water discharge of the culture tank; the first-stage reaction tank and the second-stage reaction tank are aerated by arranging a diaphragm type aeration pipe.
And step four, repeating the steps from one to three.
In the water discharging stage of the culture pond, the electric butterfly valve is electrified, and the culture water in the first-stage reaction pond flows into the second-stage reaction pond; then, starting a water pump between the culture pond and the first-stage reaction pond, pumping culture water of the culture pond into the first-stage reaction pond, enabling the culture water to flow into the second-stage reaction pond through an electric butterfly valve, and stopping the water pump when the liquid level reaches a set position; aerating the first-stage reaction tank and the second-stage reaction tank to perform biochemical reaction and precipitating to perform solid-liquid separation; after the precipitation is finished, starting a water pump between the secondary reaction tank and the reservoir to drain water to the reservoir; and when the culture pond drains water, the water pump between the water storage tank and the culture pond is started to add culture water into the culture pond from the water storage tank, so that the water level of the culture pond is kept constant.
An electric butterfly valve is arranged between the first-stage reaction tank and the second-stage reaction tank to control the on-off of water flow.
The heat absorption heat preservation breathable film is an anti-exposure heat preservation breathable greenhouse film, wherein the greenhouse film comprises a woven mesh-shaped bottom film, a plurality of wavy covering films covering the bottom film and a sun screen; one side of the wave-shaped coating is fixed on the basement membrane, and the other side of the wave-shaped coating is fixed on the adjacent wave-shaped coating through the porous breathable pad; the two adjacent wavy covered films form a ventilation port through the porous ventilation pad, and the direction of the ventilation port faces the ground; heat preservation particles are filled in an interlayer formed between the base film and the covering film; the top of the greenhouse film is connected with the sun-proof nets through the vertical lock seams, and the sun-proof nets are arranged on two sides of the vertical lock seams. Wherein the porous breathable pad is a porous sponge; the sunscreen mesh is a black hydrophilic mesh; the knitted reticular basement membrane is knitted by a needle mode. The heat preservation particles are transparent PE particles; the average thickness of the greenhouse film is zero five centimeters, the width of the wavy covering film is five centimeters, and the average particle size of the heat-insulating particles is zero three centimeters; the top both sides of vertical lock seam are provided with fixed locked groove, and sun-proof net is close to the downside position of vertical lock seam and is provided with the fixed tapered end that matches with fixed locked groove, can be with fixed tapered end joint to fixed locked groove in through rolling up sun-proof net, can pack up sun-proof net.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (10)
1. An aquatic product ecological cycle method without wastewater discharge is characterized in that: it comprises the following steps:
the method comprises the following steps that firstly, a reservoir, a culture pond, a primary reaction pond and a secondary reaction pond which are connected in series to form a loop are connected, the reservoir is communicated with a self-purification pond through a water inlet pipe and a water outlet pipe, water is discharged from the self-purification pond to the reservoir when the water level of the reservoir is lower than that of the self-purification pond, otherwise, the reservoir discharges water to the self-purification pond, and the self-purification pond is communicated with an ecological biological water purification pond through a pipeline, wherein a heat absorption and heat preservation breathable film is arranged at the top of the ecological biological water purification pond, so that the water in the reservoir; the culture pond drains water into the first-stage reaction pond, and when the culture pond drains water into the first-stage reaction pond, the water storage pond supplies water into the culture pond to maintain the water level in the culture pond constant;
step two, when the culture pond drains water into the first-stage reaction pond, the first-stage reaction pond drains water into the second-stage reaction pond, when the water levels in the first-stage reaction pond and the second-stage reaction pond reach set heights, the culture pond and the first-stage reaction pond stop draining, and the first-stage reaction pond and the second-stage reaction pond simultaneously treat culture water;
after the treatment of the culture water in the second-stage reaction tank is finished, separating the first-stage reaction tank from the second-stage reaction tank, discharging the culture water in the second-stage reaction tank into a reservoir for storage, and continuously treating the culture water by the first-stage reaction tank until the next water discharge of the culture tank;
and step four, repeating the steps from one to three.
2. The method for ecologically recycling aquatic products without discharging waste water according to claim 1, wherein said method comprises the steps of: in the water discharging stage of the culture pond, the electric butterfly valve is electrified, and the culture water in the first-stage reaction pond flows into the second-stage reaction pond; then, starting a water pump between the culture pond and the first-stage reaction pond, pumping culture water of the culture pond into the first-stage reaction pond, enabling the culture water to flow into the second-stage reaction pond through an electric butterfly valve, and stopping the water pump when the liquid level reaches a set position; aerating the first-stage reaction tank and the second-stage reaction tank to perform biochemical reaction and precipitating to perform solid-liquid separation; after the precipitation is finished, starting a water pump between the secondary reaction tank and the reservoir to drain water to the reservoir; and when the culture pond drains water, the water pump between the water storage tank and the culture pond is started to add culture water into the culture pond from the water storage tank, so that the water level of the culture pond is kept constant.
3. An ecological cycle method for aquatic products without waste water discharge according to claim 2, characterized in that: the periphery of the bottom of the self-purification tank is inclined towards the center to form a funnel shape, and a drain outlet at the bottom end of the self-purification tank is communicated with the ecological biological water purification tank through a drain pipe so that sewage discharged from the self-purification tank directly flows into the ecological biological water purification tank; an artificial floating island is arranged on the water body contained in the ecological biological water purification tank, and economic aquatic plants with developed roots are planted on the artificial floating island to absorb the components of ammonia nitrogen, nitrite and the like in the water body; sand with the thickness of ten centimeters and the particle size of less than one centimeter is paved at the bottom of the ecological biological water purification tank, a soil layer microbial filter bed is formed on an underground soil layer below the sand, an open vertical shaft with the depth of five meters is arranged in the center of the ecological biological water purification tank, the well mouth of the open vertical shaft is higher than the water surface in the ecological biological water purification tank to prevent the water body in the ecological biological water purification tank from flowing backwards, the well mouth of the open vertical shaft to two meters below the soil layer are of a fully-closed pipe body structure to isolate the water body in the ecological biological water purification tank from the water body in the ecological biological water purification tank to the water body which is incompletely purified in the soil layer shallow layer, a porous water filter pipe and a submersible pump are arranged at the lower end of the, the water purifier is used for pumping water purified by the soil layer microbial filter bed in the open vertical shaft back to the self-purification tank, and the water inlet device is sleeved with the Venturi oxygen increasing pipe for injecting oxygen when being matched with a submersible pump for pumping water.
4. The method for ecologically recycling aquatic products without wastewater discharge according to claim 3, wherein: firstly, clear water is injected into the self-cleaning pool and the ecological biological water purification pool, and the water surface heights in the two pools are consistent under the condition that the drain pipes are communicated; sterilizing according to the conventional method, fertilizing water, then breeding fishes in the self-cleaning pool, starting a submersible pump to pump water into the self-cleaning pool after 1 day of bait feeding, and automatically flowing water in the self-cleaning pool into the ecological biological water purification pool through a drain pipe in order to keep water balance when the water surface in the self-cleaning pool is higher than the ecological biological water purification pool; the submersible pump and the Venturi oxygenation pipe suck a large amount of air into the self-purification pool along with water flow through the Venturi pipe principle while injecting water, and solid dirt such as residual bait, fish excrement, animal and plant corpses and the like in the self-purification pool is gradually aggregated to the center of the pool bottom under the hydraulic impact and is discharged into the ecological biological water purification pool along with water flow through the discharge pipe; the solid waste discharged from the cleaning pool provides nutrition for the shellfish in the ecological biological water purification pool, and soluble protein, ammonia nitrogen, nitrite and the like dissolved in water provide culture agents for plants on the artificial floating island or are absorbed by microalgae in the ecological biological water purification pool for reproduction, so that protozoa are driven to grow in large quantity to bring abundant bait for the shellfish; the water discharged from the purifying pond is digested and absorbed by each ecological system in the ecological biological purifying pond, so that the waste utilization and the three-dimensional culture of fish and shellfish are realized, and the space, the water body and the oxygen are not contended among each other, so that the culture water body is primarily purified; the water in the ecological biological water purification tank is filtered by sand at the bottom of the tank to slowly leak and enter a soil layer microbial filter bed below the ecological biological water purification tank, and the water in the ecological biological water purification tank is thoroughly purified under the action of the soil layer and strong microbial flora of the soil layer; the submersible pump pumps purified water in the open vertical shaft into the self-purification tank for secondary cultivation and utilization, so that the circulation of water body utilization, purification and reutilization is realized.
5. The method for ecologically recycling aquatic products without discharging waste water according to claim 4, wherein the method comprises the following steps: elastic fillers are arranged in the first-stage reaction tank and the second-stage reaction tank.
6. An ecological cycle method for aquatic products without waste water discharge according to claim 5, wherein: in the second step, ammonifying bacteria, nitrifying bacteria and denitrifying bacteria are put into the first-stage reaction tank and the second-stage reaction tank.
7. An ecological cycle method for aquatic products without waste water discharge according to claim 6, wherein: and in the second step, feeding feed powder and brown sugar into the first-stage reaction tank and the second-stage reaction tank.
8. An ecological cycle method for aquatic products without waste water discharge according to claim 7, wherein: and in the second step, the first-stage reaction tank and the second-stage reaction tank are aerated by arranging a diaphragm type aeration pipe.
9. An ecological cycle method for aquatic products without waste water discharge according to claim 8, wherein: and in the second step, the secondary reaction tank is aerated for three hours, then the membrane type aeration pipe is closed, and the secondary reaction tank is kept stand and precipitated for one hour to carry out solid-liquid separation.
10. The method for ecologically recycling aquatic products without discharging waste water according to claim 1, wherein said method comprises the steps of: the heat absorption heat preservation breathable film is an anti-exposure heat preservation breathable greenhouse film, wherein the greenhouse film comprises a woven mesh-shaped bottom film, a plurality of wavy covering films covering the bottom film and a sun screen; one side of the wave-shaped coating is fixed on the basement membrane, and the other side of the wave-shaped coating is fixed on the adjacent wave-shaped coating through the porous breathable pad; the two adjacent wavy covered films form a ventilation port through the porous ventilation pad, and the direction of the ventilation port faces the ground; heat preservation particles are filled in an interlayer formed between the base film and the covering film; the top of the greenhouse film is connected with the sun-proof nets through the vertical lock seams, and the sun-proof nets are arranged on two sides of the vertical lock seams. Wherein the porous breathable pad is a porous sponge; the sunscreen mesh is a black hydrophilic mesh; the knitted reticular basement membrane is knitted by a needle mode. The heat preservation particles are transparent PE particles; the average thickness of the greenhouse film is zero five centimeters, the width of the wavy covering film is five centimeters, and the average particle size of the heat-insulating particles is zero three centimeters; the top both sides of vertical lock seam are provided with fixed locked groove, and sun-proof net is close to the downside position of vertical lock seam and is provided with the fixed tapered end that matches with fixed locked groove, can be with fixed tapered end joint to fixed locked groove in through rolling up sun-proof net, can pack up sun-proof net.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115215506A (en) * | 2022-06-07 | 2022-10-21 | 海南省智慧环境投资控股有限公司 | Planting and breeding coupling method for purifying breeding sewage by using mangrove forest |
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| CN109315339A (en) * | 2018-08-30 | 2019-02-12 | 中国水产科学研究院南海水产研究所 | A kind of intermittent industrial circulating water cultivating method |
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| WO2010072062A1 (en) * | 2008-12-23 | 2010-07-01 | Lan Zeqiao | Fish culture facility |
| CN104585097A (en) * | 2015-02-02 | 2015-05-06 | 青岛中科海水处理有限公司 | Circulating aquaculture device and method |
| CN108551934A (en) * | 2018-03-30 | 2018-09-21 | 苏州维洛克电子科技有限公司 | A kind of insolation proof heat-preservation ventilating awning film |
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