CN108975614A - The operational method of biogas slurry Ecological Disposal cultivating system - Google Patents

The operational method of biogas slurry Ecological Disposal cultivating system Download PDF

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CN108975614A
CN108975614A CN201810860296.2A CN201810860296A CN108975614A CN 108975614 A CN108975614 A CN 108975614A CN 201810860296 A CN201810860296 A CN 201810860296A CN 108975614 A CN108975614 A CN 108975614A
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pond
biogas slurry
algae
liquid
culture pond
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CN108975614B (en
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不公告发明人
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Cai Huiping
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    • 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
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G33/00—Cultivation of seaweed or algae
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K31/00—Housing birds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/10—Culture of aquatic animals of fish
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/40—Culture of aquatic animals of annelids, e.g. lugworms or Eunice
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/50—Culture of aquatic animals of shellfish
    • A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/50—Culture of aquatic animals of shellfish
    • A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/047—Liquid pumps for aquaria
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
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    • A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
    • A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
    • A01K67/0332—Earthworms
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultra-violet light
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    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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    • C02F2001/007—Processes including a sedimentation step
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    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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    • Y02A40/81—Aquaculture, e.g. of fish

Abstract

The present invention provides the operational methods of biogas slurry Ecological Disposal cultivating system.This biogas slurry Ecological Disposal cultivating system, including according to the tactic solid-liquid separation tank for the treatment of process, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and animal culture pond, solid-liquid separation tank, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and animal culture pond are successively contacted from beginning to end by connector；Solid-liquid separation tank carries out precipitation process and disinfection treatment to biogas slurry, resolution process pond carries out anaerobism, the processing of aerobic catabolism to biogas slurry, Air Exposure pond carries out Air Exposure to biogas slurry, acid-base accommodation pond carries out supplement adjustment to the concentration of biogas slurry, pH value and nutrition salt component, algae is cultivated in algae culture pond, and is supplied nutrients using biogas slurry, biogas to algae, algae purification biogas slurry, biogas, isolation cultivates a variety of aquatic products in animal culture pond, provides main feed with algae.The present invention forms the aquaculture industry of circular biological, improves environment.

Description

The operational method of biogas slurry Ecological Disposal cultivating system
Technical field
The invention belongs to biogas slurry treatment technical fields, are related to a kind of biogas slurry purifying aquaculture, at especially a kind of biogas slurry ecology Manage cultivating system and its operational method.
Background technique
Biogas slurry, be otherwise known as " anaerobic fermented liquid ", is the organic matters such as animal wastes, stalk remaining tool after anaerobic fermentation There is water-soluble by-product.With agricultural sector structure adjustment and new countryside construction, intensive livestock and poultry breeding industry is grown rapidly, and is made For the product biogas slurry after biogas anaerobic fermentation, these waste liquids are used as agricultural fertilizer or direct emission, whether seldom considering emission compliance And its safety for agricultural use.In fact, biogas slurry still contains a large amount of nitrogen, phosphorus and metal after anaerobic digestion, it is considered as high concentration dirt Water.
It is a kind of clean type biomass energy using the biogas that organic solid castoff anaerobic digestion generates, but anaerobic digestion Liquid yield is larger, and for the biogas slurry that the annual biogas project of China generates up to more than 200,000,000 tons, anaerobic digestion solution post-processing problem has become system About one of the main bottleneck of biogas industry development.Currently, anaerobic digestion solution is typically used as agricultural fertilizer or direct emission, seldom consider Whether emission compliance and its agricultural safety.In fact, still containing a considerable amount of organic dirts after anaerobic digestion in biogas slurry Object is contaminated, wherein BOD (BOD), COD (COD), suspended matter (SS), ammonia nitrogen (NH 3-N), total phosphorus (TP), right The pressure of environment is still very big.Therefore, it is necessary to which investment in research and development is low, low energy consumption, efficient biogas slurry is innoxious and recycling treatment Technology realizes resource circulation utilization to solve the bottleneck problem of biogas fermentation.
The purification method research of biogas slurry continues to use method for the treatment of city waste water, using the methods of physics, chemistry, biology, such as The natural ecological resources such as biological pond method and artificial swamp method and the industrial treatment mould for using the reactors such as MBR, SBR, reverse osmosis Formula, but these methods are due to the features such as operating cost is excessively high and technical difficulty of operation is big at present, are difficult to promote in raiser, and The above method is not fairly obvious to N, P removal effect in water, and therefore, direct emission is still after simple Air Exposure for biogas slurry It is current main processing mode.There are also biogas slurry is used for field irrigation, biogas slurry seed soaking, foliage-spray, soilless cultivation etc., But since transportation cost and application security problems can not dissolve large-scale cultivation industry anaerobism so that the usage amount of biogas slurry is seldom A large amount of biogas slurries caused by fermenting, therefore direct emission is still the main processing ways of current biogas slurry.
Microalgae is a kind of, full of nutrition, photosynthetic availability high autophyte widely distributed in land, ocean, it can benefit Photoautotrophy growth, synthesizing amino acid, protein and phosphatide etc. are carried out with nitrogen source, carbon source, the phosphorus source in biogas slurry after anaerobic fermentation Organic matter realizes nutrient recycling and resource utilization so as to carry out denitrogenation dephosphorizing to biogas slurry.Biogas slurry waste water is handled using microalgae Waste water can not only be purified, also can get the environment increment energy and other high value added products, to realization social sustainable development It is of great significance.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, proposes and a kind of first tentatively located biogas slurry Reason, then supply nutrients for algal culture, further using algae as the feed of animal feeding, also use biogas slurry residue as Fertilizer of ploughing is formed with the raw material of the excreta effect biogas slurry of algae, aquatic products, feed raising birds, then birds and is recycled life The biogas slurry Ecological Disposal cultivating system and its operational method of state cultivation.
Object of the invention can be realized by the following technical scheme: a kind of biogas slurry Ecological Disposal cultivating system, including presses According to the tactic solid-liquid separation tank for the treatment of process, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and move Object culture pond, the solid-liquid separation tank, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and animal culture pond It is successively contacted from beginning to end by connector；Pouity dwelling place, cultured birds in the pouity dwelling place, the fowl is arranged in the top of the solid-liquid separation tank Grid floor is arranged in the bottom of house, and the lower section of the grid floor connects solid-liquid separation tank by excretory duct；The separation of solid and liquid Pond has liquid feeding end and outlet end, and inlet is arranged in the bottom of the liquid feeding end, and setting is raised step by step on the inside of the outlet end Multi-stage stairs, the top of the outlet end are liquid outlet, and the multi-stage stairs have netted step surface, the bottom of the outlet end Scum pipe is arranged in portion, and valve, the scum pipe connection experiment arable land are arranged on the scum pipe, and the experiment arable land plantation fowl is raised Material or crops, the solid-liquid separation tank pass through piping connection sterilizer；The top of resolution process pond side is inlet, Liquid outlet is set at the top of the other side, which is higher than inlet position, biomembrane, the life is arranged in the resolution process pond Object film successively includes filter material layer, anaerobic layer and aerobic layer from the bottom to top, and the upper surface of the aerobic layer forms attachment liquid layer, described The upper surface for adhering to liquid layer forms flowing liquid layer, and the anaerobic layer and aerobic layer are stepped up along liquid flow direction；The exposure The top of gas disposal pond side is inlet, and liquid outlet is arranged in the top of the other side, if the bottom in the Air Exposure pond is arranged It does for gas nozzle, described to pass through piping connection air feed pump for gas nozzle, the parallel placement of setting multi-disc in the Air Exposure pond Partition, honeycomb porous structure is set on the partition；The acid-base accommodation pond connects regulating agent case, the confession by medicine supplying pipe Flow valve is set on pencil, soda acid detector is set in the acid-base accommodation pond, also sets up agitating paddle in the acid-base accommodation pond； The top of algae culture pond side is inlet, and liquid outlet is arranged at the top of the other side, which is higher than inlet position, the algae The bottom of culture pond is laid with culture medium, coating is arranged on the top surface of the culture medium, the inner cavity top of the algae culture pond is set It sets and cuts algae component, the algae component that cuts includes the reversed cutting rack of a pair of of stroke, and each cutting rack is connected by a driving machine It connects, the grid edge of the cutting rack forms blade；The top of animal culture pond side is inlet, another side bottom Sewage draining exit is set, and the animal culture pond connects pump oxygen machine by oxygen supplying tube, and the animal culture pond is changed by water-changing tube connection Sky shade is arranged in water pump, the top of the animal culture pond, and the sky shade has expansion bracket and foldable cover.
In this biogas slurry Ecological Disposal cultivating system, solid-liquid separation tank, resolution process pond, Air Exposure pond, acid-base accommodation pond, Algae culture pond and animal culture pond can be in line in sequence, multirow arrangement can also be carried out according to operation scene, as long as passing through The structures such as pipeline guarantee that the process sequence of liquid stream is correct.
Solid-liquid separation tank mainly utilizes precipitative properties, and the muddy impurity in biogas slurry is sunk to the bottom, and more clear liquid stream is sent To in next process pool, multi-stage stairs and its netted step surface stop excessive impurity to float at liquid outlet in precipitation process It rises, enters next process pool to avoid it.
Anaerobic layer and aerobic layer in resolution process pond form the gradient by being as thin as thickness from liquid feeding end to outlet end, by This slows down liquid flow velocity, further increases time of contact and the area of liquid stream and biomembrane, reinforces reaction effect.
Multilayer insulating panel is added in Air Exposure pond, and forms the circulation in space by the honeycomb hole on partition, on the one hand It is added to the turbulent extent of flowing liquid, on the other hand slows down the speed that oxygen is overflowed by liquid, thus enhances the combination of gas-liquid Action time and combination degree.
In acid-base accommodation pond adjust biogas slurry pH value, the adjustment of specific nutritional ingredient refer to lettuce, pH value and The supplement of nutrition salt component adjusts.
The symmetrical structure of algae component is cut in algae culture pond, specifically includes the one cutting net of driving machine connection in left side Frame, the one cutting rack of driving machine connection on right side, cuts and is respectively provided with the equal grid square hole of specification on rack, under normal condition, Algae grows up across grid square hole, and when needing to cut, driving machine respectively pulls cutting rack to the left or to the right, so that two cut The grid square hole for cutting rack is staggered, and then is cut off algae tip portion by the effect of cutting of the strand of two sides blade.
Animal culture pond can be divided into several isolation cultivation regions, and each isolation cultivation region can raise same kind of aquatic products, Thus different plant species are separated, to avoid factors such as its mutual injures and deaths.The foldable cover of sky shade can be set to impermeable Light is semi-transparent, and can be blocked or not blocked according to weather condition, aquatic products characteristic.
In above-mentioned biogas slurry Ecological Disposal cultivating system, Marsh gas collecting hood, institute is arranged in the top in the resolution process pond State the middle part that Marsh gas collecting hood is connected to the algae culture pond by vent line, on the vent line concatenation odor removal filter and Methane adsorption device.By deodorization and except the biogas main component of methane is carbon dioxide, by the gas containing great amount of carbon dioxide Algae culture pond is passed through to facilitate the efficient flourish of algae.
In above-mentioned biogas slurry Ecological Disposal cultivating system, the inside in the resolution process pond has U-shaped cavity, the U The inlet in the side ports connection resolution process pond of type cavity, the liquid outlet in another side ports connection resolution process pond.Biology Film is located at the bottom of U-shaped cavity, need to get to liquid outlet by U-shaped cavity into the liquid stream in resolution process pond from inlet, It is thus necessary to carry out Aerobic Process for Treatment, and then the haptoreaction of effective guarantee biogas slurry and biomembrane by biomembrane, aerobic place is improved Effect is managed, adjusts the concentration of the nutriments such as turbidity and nitrogen, the phosphorus of biogas slurry, preferably to adapt to subsequent algal grown.
In above-mentioned biogas slurry Ecological Disposal cultivating system, the culture medium with a thickness of 30cm~60cm；The covering Layer has several ceramic particles, and the diameter of the ceramic particle is 10mm~30mm, has several holes inside the ceramic particle Hole, the coating with a thickness of 6cm~15cm.It can be carried in water using the multiple hole characteristic of ceramic particle and contain more polyoxy Gas, while the nutriment in water body can be made to adhere to provides and advantageous to frond grows help.
In above-mentioned biogas slurry Ecological Disposal cultivating system, fluviometer, the algae training are set in the algae culture pond It supports and lifting dam is set at the liquid outlet in pond, filter screen is arranged in the top of the lifting dam, and the mesh diameter of the filter screen is 10cm~15cm.Actual height of water level is measured by fluviometer first, then according to measured value to the liter of lifting dam Drop height is operated, and to guarantee that water flow is entered in next process pool according to quantity by speed, while can also carry out wink to next process pool When the moisturizing or operating effect that instantaneously shuts off.Excessive algae leaf is trapped in algae culture pond by filter screen, to avoid mistake Big algae leaf cannot be rotted to pollute water quality by raising animal edible.
Using the operational method of biogas slurry Ecological Disposal cultivating system, comprising the following steps:
1), biogas slurry untreated first enters solid-liquid separation tank by inlet, and the flow velocity of biogas slurry is no more than 50m/h, Biogas slurry gradually accumulates and rises in solid-liquid separation tank, while proper amount of disinfectant is added into solid-liquid separation tank using sterilizer, More muddy impurities sink down to bottom of pond, relatively clear liquid is located at top in biogas slurry, until solid-liquid separation tank fills with, clarifies Liquid is slowly flowed out by liquid outlet, opens the valve on scum pipe at regular intervals, and the impurity by siltation in bottom of pond discharges；
2), the biogas slurry after precipitating sequentially enters resolution process pond, and the flow velocity of biogas slurry is no more than 40m/h, biogas slurry and pond The anaerobic layer of bottom biomembrane, aerobic layer carry out anaerobism, aerobic effect respectively, are carried out by anaerobic reaction to the organic matter in biogas slurry Catabolism, promotion form biogas, carry out oxygenolysis to the organic matter in biogas slurry by aerobic reaction；
3), the biogas slurry after decomposing is in the further precipitated impurities in resolution process pond, and then its clarified solution sequentially enters and exposes Gas disposal pond opens air feed pump, large quantity of air is added into biogas slurry for gas nozzle by several, since the structure of multilayer insulating panel hinders Gear, enhances turbulent extent, contact area and the time of gas-liquid, is dissolved in more air in biogas slurry；
4), the biogas slurry after aeration is in the further precipitated impurities in Air Exposure pond, and then its clarified solution sequentially enters acid Alkali conditioning tank, then according to required pH value standard, controls flow valve and opens according to the pH value of soda acid detector monitors biogas slurry It opens, proper amount of medication is injected into biogas slurry by regulating agent case, while opening agitating paddle and be stirred operation and make lettuce one It causes, lettuce, pH value and nutritional ingredient can be adjusted in acid-base accommodation pond；
5), the biogas slurry after overregulating is in the further precipitated impurities in acid-base accommodation pond, and then its clarified solution sequentially enters algae Culture pond, the algae root being grown in algae culture pond plants in culture medium, and is fixed by the coating on upper layer, algae The carbon dioxide in biogas is fixed under photosynthesis, and the inorganic salts such as inorganic nitrogen, phosphorus in utilization biogas slurry are nutrient source growth Breeding, while realizing the water body purification of biogas slurry；Using cutting algae component to periodically being cut at the top of algae, the algae leaf under cutting with Purification complete water body enter next process pool as feed；
6), biogas slurry completes purification and last precipitating in algae culture pond, and then its clarified solution sequentially enters animal training Pond is supported, water-change pump is opened, is pumped by water-changing tube to animal culture pond, had not only supplemented institute's water requirement, but also fit to lettuce Work as dilution, while opening pump oxygen machine and providing oxygen into animal culture pond by oxygen supplying tube, algae leaf is used in animal culture pond As main feed, cooperate appropriate auxiliary feed, periodically turns on sewage draining exit to discharge the residue of bottom of pond siltation, excreta impurity；
7), the siltation impurity of solid-liquid separation tank bottom of pond is periodically emitted into experiment arable land, as fowl feed or the fertilizer of crops Material, to promote its growth；Birds are ploughed by the algae in algae culture pond and/or the aquatic products in animal culture pond and/or experiment Fowl feed obtains food source；Excreta caused by the birds raised in pouity dwelling place falls into excretory duct by grid floor, in turn Raw material into solid-liquid separation tank, as biogas slurry.
In above-mentioned operational method, in step 1), thimerosal is 8~10% liquor natrii hypochloritis of concentration, addition Amount is 1~3mL/L, is neutralized with the sodium thiosulfate of same concentrations thereafter, the sodium hypochlorite stoste effective chlorine content % ≥10.0。
In above-mentioned operational method, in step 2), the biogas that biogas slurry is metabolized to formation in resolution process pond is carried out It collects, then absorb the methane content in biogas and removes stink, then by Pipeline transport to algae culture pond, so as to be remained in biogas Remaining carbon dioxide gas helps algae reproduction growth.
In above-mentioned operational method, in step 3), aeration process is specially that water body volume 0.3~0.5 ‰ are added Quick lime, continuous aeration for 24 hours after, interval 3 hours again continuous aeration for 24 hours, precipitate 2h.
In above-mentioned operational method, in step 6), animal culture pond is cultivated by being divided into multiple independent isolation Area cultivates fairy shrimp, water earthworm, spiral shell and ornamental fish respectively.
Compared with prior art, this biogas slurry Ecological Disposal cultivating system and its operational method are using having high level in biogas slurry Nitrogen phosphorus inorganic salts, thus provide the nutrition after biogas slurry treatment as algae to the energy, while the carbon dioxide in biogas is made It for algae culture raw material, had not only solved the cost problem of algae culture, but also has purified and be utilized biogas, biogas slurry, and also reduced biogas slurry Environmental pollution, the raising of animal is further carried out by algae reproduction, optimizing animal raises water quality, and improves environment, increases Economic, society and ecological benefits；In addition biogas slurry is first subjected to preliminary treatment, then supplied nutrients for algal culture, further It using algae as the feed of animal feeding, also uses biogas slurry residue as arable land fertilizer, raises birds with algae, aquatic products, feed, The raw material of the excreta effect biogas slurry of birds again, forms recyclable ecologic breeding.
Detailed description of the invention
Fig. 1 is the overall schematic of this biogas slurry Ecological Disposal cultivating system.
In figure, 1, solid-liquid separation tank；101, multi-stage stairs；102, scum pipe；2, resolution process pond；201, collecting methane Cover；202, biomembrane；3, Air Exposure pond；301, for gas nozzle；302, partition；4, acid-base accommodation pond；401, agitating paddle；5, algae Culture pond；501, culture medium；502, coating；503, lifting dam；504, rack is cut；6, animal culture pond；601, sewage draining exit； 602, sky shade.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figure 1, this biogas slurry Ecological Disposal cultivating system, including according to the tactic solid-liquid separation tank for the treatment of process 1, resolution process pond 2, Air Exposure pond 3, acid-base accommodation pond 4, algae culture pond 5 and animal culture pond 6, solid-liquid separation tank 1 decompose Processing pond 2, Air Exposure pond 3, acid-base accommodation pond 4, algae culture pond 5 and animal culture pond 6 are successively contacted from beginning to end by connector； The top of solid-liquid separation tank 1 is arranged pouity dwelling place, cultured birds in pouity dwelling place, and the bottom of pouity dwelling place is arranged grid floor, under grid floor Side connects solid-liquid separation tank 1 by excretory duct；Solid-liquid separation tank 1 have liquid feeding end and outlet end, the bottom of liquid feeding end be arranged into Raised multi-stage stairs 101 step by step are arranged in liquid mouth, outlet end inside, and the top of outlet end is liquid outlet, and multi-stage stairs 101 have Scum pipe 102 is arranged in netted step surface, the bottom of outlet end, and valve, the connection experiment of scum pipe 102 are arranged on scum pipe 102 Arable land, experiment arable land plantation fowl feed or crops, solid-liquid separation tank 1 pass through piping connection sterilizer；2 side of resolution process pond Top be inlet, liquid outlet is set at the top of the other side, which is higher than inlet position, setting in resolution process pond 2 Biomembrane 202, biomembrane 202 include successively from the bottom to top filter material layer, anaerobic layer and aerobic layer, and the upper surface of aerobic layer forms attached Liquid layer, adhere to liquid layer upper surface formed flowing liquid layer, anaerobic layer and aerobic layer are stepped up along liquid flow direction；Aeration The top of 3 side of processing pond is inlet, and liquid outlet is arranged in the top of the other side, and several confessions are arranged in the bottom in Air Exposure pond 3 Gas nozzle 301 passes through piping connection air feed pump, the partition of the parallel placement of the interior setting multi-disc in Air Exposure pond 3 for gas nozzle 301 302, honeycomb porous structure is set on partition 302；Acid-base accommodation pond 4 connects regulating agent case by medicine supplying pipe, is arranged on medicine supplying pipe Flow valve, acid-base accommodation pond 4 is interior to be arranged soda acid detector, also sets up agitating paddle 401 in acid-base accommodation pond 4；5 side of algae culture pond Top be inlet, liquid outlet is set at the top of the other side, which is higher than inlet position, and the bottom of algae culture pond 5 is spread If culture medium 501, coating 502 is set, the inner cavity top setting of algae culture pond 5 is cut algae component, cut on the top surface of culture medium 501 Algae component includes the reversed cutting rack 504 of a pair of of stroke, and each cutting rack 504 is connected by a driving machine, cuts rack 504 grid edge forms blade；The top of 6 side of animal culture pond is inlet, and sewage draining exit 601 is arranged in another side bottom, Animal culture pond 6 connects pump oxygen machine by oxygen supplying tube, and animal culture pond 6 connects water-change pump by water-changing tube, animal culture pond 6 Sky shade 602 is arranged in top, and sky shade 602 has expansion bracket and foldable cover.
In this biogas slurry Ecological Disposal cultivating system, solid-liquid separation tank 1, resolution process pond 2, Air Exposure pond 3, acid-base accommodation Pond 4, algae culture pond 5 and animal culture pond 6 can be in line in sequence, multirow arrangement can also be carried out according to operation scene, only To guarantee that the process sequence of liquid stream is correct by structures such as pipelines.
Solid-liquid separation tank 1 mainly utilizes precipitative properties, and the muddy impurity in biogas slurry is sunk to the bottom, more clear liquid stream is sent To in next process pool, multi-stage stairs 101 and its netted step surface stop excessive impurity at liquid outlet in precipitation process Float, enters next process pool to avoid it.
Anaerobic layer and aerobic layer in resolution process pond 2 are formed from liquid feeding end to outlet end by being as thin as thick gradient, So that liquid flow velocity slows down, further increases time of contact and the area of liquid stream and biomembrane 202, reinforce reaction Effect.
Multilayer insulating panel 302 is added in Air Exposure pond 3, and the circulation in space is formed by the honeycomb hole on partition 302, On the one hand it is added to the turbulent extent of flowing liquid, on the other hand slows down the speed that oxygen is overflowed by liquid, thus enhances gas-liquid The combination time and combination degree.
In acid-base accommodation pond 4 adjust biogas slurry pH value, the adjustment of specific nutritional ingredient refer to lettuce, pH value and The supplement of nutrition salt component adjusts.
The symmetrical structure of algae component is cut in algae culture pond 5, specifically includes the one cutting net of driving machine connection in left side Frame 504, the one cutting rack 504 of driving machine connection on right side, cuts and is respectively provided with the equal grid square hole of specification on rack 504, just Under normal state, algae is grown up across grid square hole, and when needing to cut, driving machine respectively pulls cutting rack to the left or to the right 504, so that the grid square hole of two cutting racks 504 is staggered, and then is cut and acted on algae top end part by the strand of two sides blade Under segmentation.
Animal culture pond 6 can be divided into several isolation cultivation regions, and each isolation cultivation region can raise same kind of aquatic products, Thus different plant species are separated, to avoid factors such as its mutual injures and deaths.The foldable cover of sky shade 602 can be set to not Light transmission is semi-transparent, and can be blocked or not blocked according to weather condition, aquatic products characteristic.
Marsh gas collecting hood 201 is arranged in the top in resolution process pond 2, and Marsh gas collecting hood 201 is connected to algae by vent line and trains The middle part in pond 5 is supported, concatenates odor removal filter and methane adsorption device on vent line.By deodorization and except methane biogas mainly at It is divided into carbon dioxide, the gas containing great amount of carbon dioxide is passed through algae culture pond 5 to facilitate the efficient flourish of algae.
The inside in resolution process pond 2 has U-shaped cavity, the feed liquor in the side ports connection resolution process pond 2 of U-shaped cavity Mouthful, the liquid outlet in another side ports connection resolution process pond 2.Biomembrane 202 is located at the bottom of U-shaped cavity, into resolution process The liquid stream in pond 2 need to get to liquid outlet by U-shaped cavity from inlet, and it is thus necessary to carry out aerobic place by biomembrane 202 Reason, and then the haptoreaction of effective guarantee biogas slurry and biomembrane 202 improve Aerobic Process for Treatment effect, preferably adjust the turbid of biogas slurry The concentration of the nutriments such as degree and nitrogen, phosphorus, to adapt to subsequent algal grown.
Culture medium 501 with a thickness of 30cm~60cm；Coating 502 has several ceramic particles, the diameter of ceramic particle For 10mm~30mm, there are several holes inside ceramic particle, coating 502 with a thickness of 6cm~15cm.Utilize ceramic particle Multiple hole characteristic can carry in water and contain more oxygen, while the nutriment in water body can be made to adhere to, provided to frond It is advantageous to grow help.
Fluviometer is set in algae culture pond 5, lifting dam 503, lifting dam 503 are set at the liquid outlet of algae culture pond 5 Top filter screen is set, the mesh diameter of filter screen is 10cm~15cm.It is measured first by fluviometer actual Then height of water level is operated according to adjustable height of the measured value to lifting dam 503, under guaranteeing that water flow is entered according to quantity by speed In one process pool, while the operating effect that instantaneous moisturizing can also be carried out to next process pool or instantaneously shut off.Pass through filter screen Excessive algae leaf is trapped in algae culture pond 5, cannot be rotted to pollute water quality by raising animal edible to avoid excessive algae leaf.
Using the operational method of biogas slurry Ecological Disposal cultivating system, comprising the following steps:
1), biogas slurry untreated first enters solid-liquid separation tank 1 by inlet, and the flow velocity of biogas slurry is no more than 50m/h, Biogas slurry gradually accumulates and rises in solid-liquid separation tank 1, while appropriate disinfection is added into solid-liquid separation tank 1 using sterilizer Liquid, for more muddy impurities sink down to bottom of pond, relatively clear liquid is located at top in biogas slurry, until solid-liquid separation tank 1 fills with, Supernatant liquid is slowly flowed out by liquid outlet, opens the valve on scum pipe 102 at regular intervals, by the impurity in bottom of pond that deposits Discharge；
2), the biogas slurry after precipitating sequentially enters resolution process pond 2, and the flow velocity of biogas slurry is no more than 40m/h, biogas slurry and pond The anaerobic layer of bottom biomembrane 202, aerobic layer carry out anaerobism, aerobic effect respectively, by anaerobic reaction to the organic matter in biogas slurry Catabolism is carried out, promotion forms biogas, carries out oxygenolysis to the organic matter in biogas slurry by aerobic reaction；
3), the biogas slurry after decomposing is in the further precipitated impurities in resolution process pond 2, and then its clarified solution sequentially enters and exposes Gas disposal pond 3 opens air feed pump, large quantity of air is added into biogas slurry for gas nozzle 301 by several, due to multilayer insulating panel 302 Structure barrier, enhance turbulent extent, contact area and the time of gas-liquid, be dissolved in more air in biogas slurry；
4), the biogas slurry after aeration is in the further precipitated impurities in Air Exposure pond 3, and then its clarified solution sequentially enters acid Alkali conditioning tank 4, then according to required pH value standard, controls flow valve and opens according to the pH value of soda acid detector monitors biogas slurry It opens, proper amount of medication is injected into biogas slurry by regulating agent case, while opening agitating paddle 401 and be stirred operation and make lettuce Unanimously, lettuce, pH value and nutritional ingredient can be adjusted in acid-base accommodation pond 4；
5), the biogas slurry after overregulating is in the further precipitated impurities in acid-base accommodation pond 4, and then its clarified solution sequentially enters algae Culture pond 5, the algae root being grown in algae culture pond 5 plant in culture medium 501, and are carried out by the coating 502 on upper layer Fixation, algae fixes the carbon dioxide in biogas under photosynthesis, and the inorganic salts such as inorganic nitrogen, phosphorus in utilization biogas slurry are battalion Source growth and breeding is supported, while realizing the water body purification of biogas slurry；Algae top is periodically cut using algae component is cut, under cutting Algae leaf with purification complete water body enter next process pool as feed；
6), biogas slurry completes purification and last precipitating in algae culture pond 5, and then its clarified solution sequentially enters animal training Pond 6 is supported, water-change pump is opened, is pumped by water-changing tube to animal culture pond 6, had not only supplemented institute's water requirement, but also carry out to lettuce Appropriate dilution, while opening pump oxygen machine and providing oxygen into animal culture pond 6 by oxygen supplying tube, it is used in animal culture pond 6 Algae leaf cooperates appropriate auxiliary feed as main feed, and it is miscellaneous to discharge the residue of bottom of pond siltation, excreta to periodically turn on sewage draining exit 601 Matter；
7), the siltation impurity of 1 bottom of pond of solid-liquid separation tank is periodically emitted into experiment arable land, as fowl feed or the fertilizer of crops Material, to promote its growth；Birds pass through the algae in algae culture pond 5 and/or the aquatic products in animal culture pond 6 and/or experiment arable land Fowl feed obtain food source；Excreta caused by the birds raised in pouity dwelling place falls into excretory duct by grid floor, into And enter in solid-liquid separation tank 1, the raw material as biogas slurry.
In step 1), thimerosal is 8~10% liquor natrii hypochloritis of concentration, and additive amount is 1~3mL/L, is used thereafter The sodium thiosulfate of same concentrations neutralizes, sodium hypochlorite stoste effective chlorine content % >=10.0.
In step 2), the biogas that biogas slurry is metabolized to formation in resolution process pond 2 is collected, and is then absorbed in biogas Methane content and remove stink, then by Pipeline transport to algae culture pond 5 so that remaining carbon dioxide gas helps in biogas It is grown in algae reproduction.
In step 3), aeration process is specially the quick lime that water body volume 0.3~0.5 ‰ are added, and continuous aeration is for 24 hours Afterwards, be spaced 3 hours again continuous aeration for 24 hours, precipitate 2h.
In step 6), animal culture pond 6 by being divided into multiple independent isolation cultivation regions, respectively cultivate fairy shrimp, Water earthworm, spiral shell and ornamental fish.
This biogas slurry Ecological Disposal cultivating system and its operational method using the nitrogen phosphorus inorganic salts for having high level in biogas slurry, by This provides the nutrition after biogas slurry treatment as algae to the energy, while using the carbon dioxide in biogas as algae culture raw material, Not only it had solved the cost problem of algae culture, but also has purified and be utilized biogas, biogas slurry, and the environmental pollution of biogas slurry had been also reduced, into one Step carries out the raising of animal by algae reproduction, and optimizing animal raises water quality, and improves environment, increases economic, society and ecology Benefit；In addition biogas slurry is first subjected to preliminary treatment, then supplied nutrients for algal culture, further using algae as animal The feed of raising, also uses biogas slurry residue as arable land fertilizer, raises birds, then the excreta of birds with algae, aquatic products, feed The raw material of biogas slurry is acted on, recyclable ecologic breeding is formed.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although solid-liquid separation tank 1 is used more herein；Multi-stage stairs 101；Scum pipe 102；Resolution process pond 2；Natural pond Gas collecting hood 201；Biomembrane 202；Air Exposure pond 3；For gas nozzle 301；Partition 302；Acid-base accommodation pond 4；Agitating paddle 401； Algae culture pond 5；Culture medium 501；Coating 502；Lifting dam 503；Cut rack 504；Animal culture pond 6；Sewage draining exit 601；It hides The terms such as sun cover 602, but it does not exclude the possibility of using other terms.The use of these items is only for more easily retouch State and explain essence of the invention；Being construed as any additional limitation is disagreed with spirit of that invention.

Claims (5)

1. the operational method of biogas slurry Ecological Disposal cultivating system, biogas slurry Ecological Disposal cultivating system includes according to treatment process sequence Solid-liquid separation tank, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and the animal culture pond of arrangement, it is described solid Liquid separate tank, resolution process pond, Air Exposure pond, acid-base accommodation pond, algae culture pond and animal culture pond pass through connector successively Head and the tail are contacted；Pouity dwelling place is arranged in the top of the solid-liquid separation tank, and grid are arranged in the bottom of cultured birds in the pouity dwelling place, the pouity dwelling place The lower section on lattice floor, the grid floor connects solid-liquid separation tank by excretory duct；The solid-liquid separation tank have liquid feeding end and Inlet is arranged in outlet end, the bottom of the liquid feeding end, setting raised multi-stage stairs step by step on the inside of the outlet end, it is described go out The top at liquid end is liquid outlet, and the multi-stage stairs have netted step surface, and scum pipe, institute is arranged in the bottom of the outlet end It states and valve is set on scum pipe, the scum pipe connection experiment arable land, fowl feed or crops are planted in the experiment arable land, described Solid-liquid separation tank passes through piping connection sterilizer；The top of resolution process pond side is inlet, setting at the top of the other side Liquid outlet, the liquid outlet are higher than inlet position, setting biomembrane in the resolution process pond, the biomembrane from the bottom to top according to Secondary includes filter material layer, anaerobic layer and aerobic layer, and the upper surface of the aerobic layer forms attachment liquid layer, the upper table of the attachment liquid layer Face forms flowing liquid layer, and the anaerobic layer and aerobic layer are stepped up along liquid flow direction；Air Exposure pond side Top is inlet, and liquid outlet is arranged in the top of the other side, and the bottom setting in the Air Exposure pond is several for gas nozzle, described Pass through piping connection air feed pump for gas nozzle, the partition of the parallel placement of setting multi-disc, the partition in the Air Exposure pond Upper setting honeycomb porous structure；The acid-base accommodation pond connects regulating agent case by medicine supplying pipe, and flow is arranged on the medicine supplying pipe Soda acid detector is arranged in the acid-base accommodation pond, also sets up agitating paddle in the acid-base accommodation pond for valve；Algae culture pond side Top is inlet, and liquid outlet is arranged at the top of the other side, which is higher than inlet position, and the bottom of the algae culture pond is spread If culture medium, coating is set, and algae component is cut in the inner cavity top setting of the algae culture pond, described on the top surface of the culture medium Cutting algae component includes the reversed cutting rack of a pair of of stroke, and each cutting rack is connected by a driving machine, in algae culture pond The symmetrical structure of algae component is cut, the one cutting rack of driving machine connection in left side, the driving machine connection one on right side are specifically included Rack is cut, cuts and is respectively provided with the equal grid square hole of specification on rack, the grid edge of the cutting rack forms blade；Institute The top for stating animal culture pond side is inlet, and sewage draining exit is arranged in another side bottom, and the animal culture pond passes through oxygen supplying tube Connection pump oxygen machine, the animal culture pond connect water-change pump by water-changing tube, and sky shade is arranged in the top of the animal culture pond, The sky shade has expansion bracket and foldable cover, and Marsh gas collecting hood, the biogas is arranged in the top in the resolution process pond Collecting hood is connected to the middle part of the algae culture pond by vent line, and odor removal filter is concatenated on the vent line and methane is inhaled Receive device, the inside in the resolution process pond has a U-shaped cavity, the side ports connection resolution process pond of the U-shaped cavity into Liquid mouth, the liquid outlet in another side ports connection resolution process pond；It is characterized in that, the operational method the following steps are included:
1), biogas slurry untreated first enters solid-liquid separation tank by inlet, and the flow velocity of biogas slurry is no more than 50m/h, biogas slurry It gradually accumulates and rises in solid-liquid separation tank, while adding proper amount of disinfectant, biogas slurry into solid-liquid separation tank using sterilizer The muddy impurities sink down of middle comparison to bottom of pond, relatively clear liquid is located at top, until solid-liquid separation tank fills with, supernatant liquid It is slowly flowed out by liquid outlet, opens the valve on scum pipe at regular intervals, the impurity by siltation in bottom of pond discharges；
2), the biogas slurry after precipitating sequentially enters resolution process pond, and the flow velocity of biogas slurry is no more than 40m/h, and biogas slurry and bottom of pond are raw The anaerobic layer of object film, aerobic layer carry out anaerobism, aerobic effect respectively, are decomposed by anaerobic reaction to the organic matter in biogas slurry Metabolism, promotion form biogas, carry out oxygenolysis to the organic matter in biogas slurry by aerobic reaction；
3), the biogas slurry after decomposing is in the further precipitated impurities in resolution process pond, and then its clarified solution sequentially enters at aeration Pond is managed, air feed pump is opened, large quantity of air is added into biogas slurry for gas nozzle by several, due to the structure barrier of multilayer insulating panel, Turbulent extent, contact area and the time for enhancing gas-liquid, it is dissolved in more air in biogas slurry；
4), the biogas slurry after aeration is in the further precipitated impurities in Air Exposure pond, and then its clarified solution sequentially enters soda acid tune Pond is saved, according to the pH value of soda acid detector monitors biogas slurry, then according to required pH value standard, flow valve is controlled and opens, lead to It overregulates chemical tank and injects proper amount of medication into biogas slurry, while opening agitating paddle and being stirred operation keeps lettuce consistent, Lettuce, pH value and nutritional ingredient are adjusted in acid-base accommodation pond；
5), the biogas slurry after overregulating is in the further precipitated impurities in acid-base accommodation pond, and then its clarified solution sequentially enters algae culture Pond, the algae root being grown in algae culture pond plants in culture medium, and is fixed by the coating on upper layer, and algae is in light Cooperate the carbon dioxide in lower fixed biogas, and be nutrient source growth and breeding using inorganic nitrogen, the phosphorus inorganic salts in biogas slurry, together The water body purification of Shi Shixian biogas slurry；Using algae component is cut to periodically being cut at the top of algae, under normal condition, algae gives birth to upwards Long across grid square hole, when needing to cut, driving machine respectively pulls cutting rack to the left or to the right, so that the net of two cutting racks Lattice square hole is staggered, and then is cut off algae tip portion by the effect of cutting of the strand of two sides blade, and the algae leaf under cutting is with net Change the water body completed and enters next process pool as feed；
6), biogas slurry completes purification and last precipitating in algae culture pond, and then its clarified solution sequentially enters animal culture pond, Water-change pump is opened, is pumped by water-changing tube to animal culture pond, institute's water requirement had not only been supplemented, but also lettuce is carried out appropriate dilute It releases, while opening pump oxygen machine and providing oxygen into animal culture pond by oxygen supplying tube, the conduct of algae leaf is used in animal culture pond Main feed cooperates appropriate auxiliary feed, periodically turns on sewage draining exit to discharge the residue of bottom of pond siltation, excreta impurity；
7), the siltation impurity of solid-liquid separation tank bottom of pond is periodically emitted into experiment arable land, as fowl feed or the fertilizer of crops, with Promote its growth；Birds pass through the algae in algae culture pond and/or the aquatic products in animal culture pond and/or the fowl feed in experiment arable land Obtain food source；Excreta caused by the birds raised in pouity dwelling place falls into excretory duct by grid floor, and then enters solid Raw material in liquid separate tank, as biogas slurry.
2. the operational method of biogas slurry Ecological Disposal cultivating system according to claim 1, which is characterized in that in step 1) In, thimerosal is 8~10% liquor natrii hypochloritis of concentration, and additive amount is 1~3mL/L, uses the thio sulphur of same concentrations thereafter Sour sodium neutralizes, sodium hypochlorite stoste effective chlorine content >=10.0%.
3. the operational method of biogas slurry Ecological Disposal cultivating system according to claim 1, which is characterized in that in step 2) In, the biogas that biogas slurry is metabolized to formation in resolution process pond is collected, and then absorbs methane content and removal in biogas Stink, then by Pipeline transport to algae culture pond, so that remaining carbon dioxide gas helps algae reproduction growth in biogas.
4. the operational method of biogas slurry Ecological Disposal cultivating system according to claim 1, which is characterized in that in step 3) In, aeration process is specially the quick lime that water body volume 0.3~0.5 ‰ are added, continuous aeration for 24 hours after, interval 3 hours is continuous again Aeration for 24 hours, precipitates 2h.
5. the operational method of biogas slurry Ecological Disposal cultivating system according to claim 1, which is characterized in that in step 6) In, animal culture pond cultivates fairy shrimp, water earthworm, spiral shell respectively and watches by being divided into multiple independent isolation cultivation regions Fish.
CN201810860296.2A 2016-06-06 2016-06-06 Operation method of biogas slurry ecological treatment culture system Expired - Fee Related CN108975614B (en)

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CN110665029A (en) * 2019-11-26 2020-01-10 湖南新元素智慧医疗科技有限公司 Ultraviolet disinfection cabinet for medical instruments
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CN116441759B (en) * 2023-06-17 2023-09-01 南宫市罗康毛毡有限公司 High heat dissipation laser cutting machine

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