CN108975615B - Biogas slurry ecological treatment breeding system - Google Patents
Biogas slurry ecological treatment breeding system Download PDFInfo
- Publication number
- CN108975615B CN108975615B CN201810860300.5A CN201810860300A CN108975615B CN 108975615 B CN108975615 B CN 108975615B CN 201810860300 A CN201810860300 A CN 201810860300A CN 108975615 B CN108975615 B CN 108975615B
- Authority
- CN
- China
- Prior art keywords
- tank
- algae
- liquid
- biogas slurry
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 115
- 238000011282 treatment Methods 0.000 title claims abstract description 112
- 238000009395 breeding Methods 0.000 title abstract description 9
- 230000001488 breeding effect Effects 0.000 title abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 163
- 241000195493 Cryptophyta Species 0.000 claims abstract description 109
- 241001465754 Metazoa Species 0.000 claims abstract description 46
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 41
- 238000000926 separation method Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000005273 aeration Methods 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 244000144977 poultry Species 0.000 claims description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 14
- 239000001963 growth medium Substances 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 8
- 238000004332 deodorization Methods 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 235000015097 nutrients Nutrition 0.000 abstract description 16
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 5
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 2
- 230000004060 metabolic process Effects 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 239000012535 impurity Substances 0.000 description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 230000012010 growth Effects 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000011574 phosphorus Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000003337 fertilizer Substances 0.000 description 8
- 230000001376 precipitating effect Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 239000000645 desinfectant Substances 0.000 description 6
- 230000029087 digestion Effects 0.000 description 6
- 238000000855 fermentation Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000005708 Sodium hypochlorite Substances 0.000 description 4
- 238000003975 animal breeding Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 235000016709 nutrition Nutrition 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical group [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 238000011221 initial treatment Methods 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 2
- 241000595940 Notostraca Species 0.000 description 2
- 241000132906 Tubificidae Species 0.000 description 2
- 230000005791 algae growth Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- 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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- 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
- A01K63/047—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
- A01K67/02—Breeding vertebrates
-
- 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
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
-
- 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
- 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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/72—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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F3/32—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
-
- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention provides a biogas slurry ecological treatment breeding system. The biogas slurry ecological treatment culture system comprises a solid-liquid separation tank, a decomposition treatment tank, an aeration treatment tank, an acid-base regulation tank, an algae culture tank and an animal culture tank which are arranged according to a treatment process sequence, wherein the solid-liquid separation tank, the decomposition treatment tank, the aeration treatment tank, the acid-base regulation tank, the algae culture tank and the animal culture tank are sequentially connected end to end in series; the solid-liquid separation tank is used for carrying out precipitation treatment and disinfection treatment on the biogas slurry, the decomposition treatment tank is used for carrying out anaerobic and aerobic decomposition and metabolism treatment on the biogas slurry, the aeration treatment tank is used for carrying out aeration treatment on the biogas slurry, the acid-base regulation tank is used for supplementing and regulating the concentration, the pH value and nutrient salt components of the biogas slurry, algae are cultured in the algae culture tank, nutrients are provided for the algae by utilizing the biogas slurry and the biogas, the algae are used for purifying the biogas slurry and the biogas, various aquatic products are isolated and cultured in the animal culture tank, and main feed is provided for. The invention forms a circular ecological breeding industry and improves the environment.
Description
Technical Field
The invention belongs to the technical field of biogas slurry treatment, relates to biogas slurry purification culture, and particularly relates to a biogas slurry ecological treatment culture system and an operation method thereof.
Background
Biogas slurry, also called "anaerobic fermentation broth", is a water-soluble byproduct remaining after anaerobic fermentation of organic matters such as animal waste and straws. With the adjustment of agricultural industrial structure and the construction of new rural areas, the intensive livestock and poultry breeding industry develops rapidly, and as biogas slurry which is a product after anaerobic fermentation of biogas, the waste liquid is used as agricultural fertilizer or directly discharged, and whether the discharge reaches the standard or not and the agricultural safety are rarely considered. In fact, biogas slurry after anaerobic digestion still contains a large amount of nitrogen, phosphorus and metals and is considered as high-concentration sewage.
Biogas generated by anaerobic digestion of organic solid wastes is a clean biomass energy, but the amount of generated anaerobic digestion liquid is large, biogas slurry generated by biogas engineering in China reaches more than 2 hundred million tons every year, and the problem of aftertreatment of the anaerobic digestion liquid becomes one of the main bottlenecks restricting the development of biogas industry. At present, anaerobic digestion liquid is generally used as agricultural fertilizer or directly discharged, and whether the discharge reaches the standard or not and the agricultural safety are seldom considered. In fact, biogas slurry after anaerobic digestion still contains a considerable amount of organic pollutants, wherein the pressure on the environment is still large due to Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), suspended matters (SS), ammonia nitrogen (NH 3-N) and Total Phosphorus (TP). Therefore, it is necessary to develop a harmless and recycling treatment technology for biogas slurry with low investment, low energy consumption and high efficiency to solve the bottleneck problem of biogas fermentation and realize resource recycling.
The method for purifying biogas slurry is mainly researched by continuously using an urban sewage treatment method, and adopts methods such as physical, chemical and biological methods, such as natural biological treatment methods such as a biological pond method and an artificial wetland, and industrial treatment modes adopting reactors such as MBR, SBR and reverse osmosis, but at present, the methods are difficult to popularize in farmers due to the characteristics of high operation cost, high operation technical difficulty and the like, and the method has a not very obvious effect of removing N, P in water, so that the direct discharge of biogas slurry after simple aeration treatment is still the main treatment mode at present. Some biogas slurry is used for farmland irrigation, biogas slurry seed soaking, foliage spraying, soilless culture and the like, but due to the problems of transportation cost, application safety and the like, the usage amount of the biogas slurry is small, a large amount of biogas slurry generated by anaerobic fermentation of the large-scale aquaculture cannot be consumed, and therefore direct discharge is still the main treatment mode of the biogas slurry at present.
The microalgae is an autotrophic plant with wide land and ocean distribution, rich nutrition and high photosynthetic utilization rate, and can utilize a nitrogen source, a carbon source and a phosphorus source in the biogas slurry after anaerobic fermentation to perform photoautotrophic growth and synthesize organic matters such as amino acid, protein, phospholipid and the like, thereby removing nitrogen and phosphorus from the biogas slurry and realizing nutrient recovery and resource utilization. The microalgae-treated biogas slurry wastewater can purify wastewater, and can also obtain environment value-added energy and other high value-added products, thereby having great significance for realizing social sustainable development.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a biogas slurry ecological treatment culture system and an operation method thereof, wherein biogas slurry is firstly subjected to primary treatment and then is used for algae culture to provide nutrients, algae is further used as animal feed, biogas slurry residue is used as farmland fertilizer, poultry are fed by algae, aquatic products and feed, and excrement of the poultry is used as a raw material of the biogas slurry to form recyclable ecological culture.
The purpose of the invention can be realized by the following technical scheme: a biogas slurry ecological treatment culture system comprises a solid-liquid separation tank, a decomposition treatment tank, an aeration treatment tank, an acid-base regulation tank, an algae culture tank and an animal culture tank which are arranged according to a treatment process sequence, wherein the solid-liquid separation tank, the decomposition treatment tank, the aeration treatment tank, the acid-base regulation tank, the algae culture tank and the animal culture tank are sequentially connected in series end to end through connectors; a poultry house is arranged above the solid-liquid separation tank, poultry is cultured in the poultry house, a grid floor is arranged at the bottom of the poultry house, and the lower part of the grid floor is connected with the solid-liquid separation tank through a drainage pipe; the solid-liquid separation tank is provided with a liquid inlet end and a liquid outlet end, a liquid inlet is formed in the bottom of the liquid inlet end, a multistage step which is gradually raised is arranged on the inner side of the liquid outlet end, a liquid outlet is formed in the top of the liquid outlet end, the multistage step is provided with a net-shaped step surface, a slag discharge pipe is arranged at the bottom of the liquid outlet end, a valve is arranged on the slag discharge pipe, the slag discharge pipe is connected with an experimental farmland, the experimental farmland is used for planting poultry feed or crops, and the solid-liquid separation tank is connected with a sterilizer through a pipeline; the top of one side of the decomposition treatment tank is provided with a liquid inlet, the top of the other side of the decomposition treatment tank is provided with a liquid outlet, the liquid outlet is higher than the liquid inlet, a biological membrane is arranged in the decomposition treatment tank and sequentially comprises a filter material layer, an anaerobic layer and an aerobic layer from bottom to top, an attachment liquid layer is formed on the upper surface of the aerobic layer, a flowing liquid layer is formed on the upper surface of the attachment liquid layer, and the anaerobic layer and the aerobic layer are gradually raised along the liquid flowing direction; the top of one side of the aeration treatment tank is provided with a liquid inlet, the top of the other side of the aeration treatment tank is provided with a liquid outlet, the bottom of the aeration treatment tank is provided with a plurality of air supply nozzles, the air supply nozzles are connected with an air supply pump through pipelines, a plurality of partition plates which are arranged in parallel are arranged in the aeration treatment tank, and the partition plates are provided with honeycomb hole structures; the acid-base adjusting tank is connected with an adjusting agent box through a medicine supply pipe, a flow valve is arranged on the medicine supply pipe, an acid-base detector is arranged in the acid-base adjusting tank, and a stirring paddle is further arranged in the acid-base adjusting tank; the top of one side of the algae culture pond is a liquid inlet, the top of the other side of the algae culture pond is provided with a liquid outlet, the liquid outlet is higher than the liquid inlet, a culture medium is laid at the bottom of the algae culture pond, a covering layer is arranged on the top surface of the culture medium, the upper part of an inner cavity of the algae culture pond is provided with an algae cutting assembly, the algae cutting assembly comprises a pair of cutting net racks with reverse strokes, each cutting net rack is connected by a driving machine, and the grid edges of the cutting net racks form cutting edges; the top of pond one side is cultivateed to the animal is the inlet, and the opposite side bottom sets up the drain, the pond is cultivateed to the animal is through oxygen supply union coupling pump oxygen machine, the pond is cultivateed to the animal through trading water piping connection and trading the water pump, the top of pond is cultivateed to the animal sets up the sky shade, the sky shade has expansion bracket and collapsible top facing.
In the biogas slurry ecological treatment breeding system, the solid-liquid separation tank, the decomposition treatment tank, the aeration treatment tank, the acid-base regulation tank, the algae culture tank and the animal culture tank can be arranged in a line in sequence, and can also be arranged in multiple lines according to an operation site, so long as the process sequence of liquid flow is ensured to be correct through structures such as pipelines.
The solid-liquid separation tank mainly utilizes the sedimentation characteristic to settle turbid impurities in the biogas slurry, and sends clear liquid flow to the next process tank, and the multistage steps and the mesh-shaped step surfaces thereof prevent overlarge impurities from floating at the liquid outlet in the sedimentation process so as to prevent the impurities from entering the next process tank.
The anaerobic layer and the aerobic layer in the decomposition treatment tank form an inclined slope from thin to thick from the liquid inlet end to the liquid outlet end, so that the liquid flow speed is reduced, the contact time and the contact area of liquid flow and a biological membrane are further increased, and the reaction effect is enhanced.
The aeration treatment tank is additionally provided with a plurality of layers of partition plates, and the circulation of space is formed by honeycomb holes on the partition plates, so that the turbulence degree of inflow liquid is increased on one hand, and the overflowing speed of oxygen passing through the liquid is slowed down on the other hand, thereby enhancing the combination action time and combination degree of gas and liquid.
The pH value of the biogas slurry is adjusted in the pH adjusting tank, and the adjustment of specific nutrient components refers to the supplement adjustment of the concentration, the pH value and nutrient salt components of the biogas slurry.
The algae subassembly that cuts in the algae culture pond is bilateral symmetry structure, specifically includes that a left driving machine connects a cutting rack, and a cutting rack is connected to the driving machine on right side, all sets up the net square hole that the specification equals on the cutting rack, and under the normal condition, the ascending growth of algae passes the net square hole, and when needing the cutting, the driving machine stimulates the cutting rack respectively left or right for the net square hole looks alternate of two cutting racks, and then cuts off the top portion of algae through the hank cutting effect of both sides cutting edge.
The animal culture pond can be divided into a plurality of isolated culture areas, and each isolated culture area can be used for feeding aquatic products of the same kind, so that different species can be separated to avoid factors such as mutual casualties. The foldable cover of the sunshade can be set to be light-tight or semi-light-tight, and can be shielded or not shielded according to weather conditions and aquatic characteristics.
In the biogas slurry ecological treatment culture system, the top of the decomposition treatment tank is provided with a biogas collection cover which is communicated with the middle part of the algae culture tank through an air pipeline, and the air pipeline is connected in series with a deodorization filter and a methane absorber. The main component of the methane subjected to deodorization and methane removal is carbon dioxide, and gas containing a large amount of carbon dioxide is introduced into the algae culture pond to contribute to efficient propagation and growth of algae.
In foretell natural pond liquid ecological treatment farming systems, the inside of decomposition treatment pond has the U type to lead to the chamber, the inlet that decomposes treatment pond is connected to one side port in the U type to lead to the chamber, and the liquid outlet that decomposes treatment pond is connected to another side port. The biomembrane is located the bottom that the cavity was led to the U type, and the liquid stream that gets into the decomposition processing pond from the inlet need lead to the cavity through the U type and just can reach the liquid outlet, must carry out aerobic treatment through the biomembrane from this, and then effectively ensure the contact reaction of natural pond liquid and biomembrane, improve aerobic treatment effect, the turbidity of better adjustment natural pond liquid and the concentration of nutrients such as nitrogen, phosphorus to adapt to follow-up algae growth.
In the biogas slurry ecological treatment culture system, the thickness of the culture medium is 30-60 cm; the covering layer is provided with a plurality of ceramic particles, the diameter of each ceramic particle is 10-30 mm, a plurality of holes are formed in the ceramic particles, and the thickness of the covering layer is 6-15 cm. The porous characteristic of the ceramic particles can be utilized to carry and store more oxygen in water, and meanwhile, nutrients in the water can be attached, so that beneficial growth assistance to the algae is provided.
In the biogas slurry ecological treatment culture system, a water level measurer is arranged in the algae culture pond, a lifting dam is arranged at the liquid outlet of the algae culture pond, a filter screen is arranged at the top of the lifting dam, and the diameter of a mesh of the filter screen is 10 cm-15 cm. The actual water level height is measured by the water level measurer, and then the lifting height of the lifting dam is operated according to the measured value, so that the water flow can enter the next process pool at a certain speed and quantity, and meanwhile, the operation effect of instantaneous water supplement or instantaneous closure can be performed on the next process pool. The oversize algae leaves are retained in the algae culture pond through the filter screen, so that the water quality is prevented from being polluted due to the fact that the oversize algae leaves cannot be eaten by the raised animals.
The operation method of the biogas slurry ecological treatment breeding system comprises the following steps:
1) firstly, untreated biogas slurry enters a solid-liquid separation tank through a liquid inlet, the flow rate of the biogas slurry is not more than 50m/h, the biogas slurry is gradually accumulated and ascends in the solid-liquid separation tank, meanwhile, a proper amount of disinfectant is added into the solid-liquid separation tank by using a disinfector, turbid impurities in the biogas slurry sink to the bottom of the tank, relatively clear liquid is positioned at the upper part until the solid-liquid separation tank is full, the clear liquid slowly flows out from the liquid outlet, a valve on a slag discharge pipe is opened at intervals, and the impurities deposited at the bottom of the tank are discharged;
2) the settled biogas slurry sequentially enters a decomposition treatment tank, the flow rate of the biogas slurry does not exceed 40m/h, the biogas slurry and an anaerobic layer and an aerobic layer of a biological membrane at the bottom of the tank respectively perform anaerobic and aerobic actions, organic matters in the biogas slurry are decomposed and metabolized through anaerobic reaction to promote formation of biogas, and the organic matters in the biogas slurry are subjected to oxidative decomposition through aerobic reaction;
3) further precipitating impurities in the decomposed biogas slurry in a decomposition treatment tank, then sequentially introducing clarified liquid into an aeration treatment tank, starting an air supply pump, adding a large amount of air into the biogas slurry through a plurality of air supply nozzles, and enhancing the turbulence degree, contact area and time of the gas and the liquid due to the structural blockage of a multilayer partition plate so as to dissolve more air in the biogas slurry;
4) the aerated biogas slurry is further precipitated with impurities in an aeration treatment tank, then the clarified liquid of the aerated biogas slurry sequentially enters an acid-base regulation tank, the pH value of the biogas slurry is monitored by an acid-base detector, then the flow valve is controlled to be opened according to the required pH value standard, a proper amount of medicament is injected into the biogas slurry by regulating a medicament box, the stirring paddle is started to stir so that the concentration of the biogas slurry is consistent, and the concentration, the pH value and the nutrient content of the biogas slurry can be regulated in the acid-base regulation tank;
5) further precipitating impurities in the adjusted biogas slurry in an acid-base adjusting tank, then sequentially feeding clarified liquid into an algae culture tank, planting the roots of algae growing in the algae culture tank into a culture medium, fixing the algae through an upper covering layer, fixing carbon dioxide in the biogas by the algae under the photosynthesis, growing and propagating by using inorganic salts such as inorganic nitrogen, phosphorus and the like in the biogas slurry as nutrient sources, and simultaneously realizing water body purification of the biogas slurry; the tops of the algae are periodically cut by using the algae cutting assembly, and the cut algae leaves enter the next process pool along with the purified water body to be used as feed;
6) purifying and finally precipitating the biogas slurry in an algae culture pond, then sequentially introducing clarified liquid into an animal culture pond, starting a water exchange pump, pumping water into the animal culture pond through a water exchange pipe, supplementing required water, properly diluting the concentration of the biogas slurry, simultaneously starting an oxygen pumping machine to provide oxygen into the animal culture pond through an oxygen supply pipe, taking algae leaves as main feed in the animal culture pond, matching with proper auxiliary feed, and regularly opening a drain outlet to discharge residues and excrement impurities deposited at the bottom of the pond;
7) the deposited impurities at the bottom of the solid-liquid separation tank are periodically discharged to an experimental cultivated land and are used as poultry feed or fertilizer for crops to promote the growth of the poultry feed or the fertilizer; the poultry obtains food sources through the algae in the algae culture pond and/or the aquatic products in the animal culture pond and/or the poultry feed in the experimental cultivated land; excrement produced by the poultry raised in the poultry house falls into the drainage pipe through the grid floor and then enters the solid-liquid separation tank to be used as a raw material of biogas slurry.
In the operation method, in the step 1), the disinfectant is a sodium hypochlorite solution with the concentration of 8-10%, the addition amount of the disinfectant is 1-3 mL/L, and then sodium thiosulfate with the same concentration is used for neutralization, wherein the mass fraction of effective chlorine in the sodium hypochlorite stock solution is more than or equal to 10.0.
In the operation method, in the step 2), biogas formed by metabolizing biogas slurry in the decomposition treatment pool is collected, then methane components in the biogas are absorbed and odor is removed, and the biogas is conveyed to the algae culture pool through a pipeline, so that residual carbon dioxide gas in the biogas contributes to the propagation and growth of algae.
In the operation method, in the step 3), quicklime with the water volume of 0.3-0.5 per mill is added in the aeration process, and after 24 hours of continuous aeration, the continuous aeration is carried out for 24 hours at intervals of 3 hours, and then the precipitation is carried out for 2 hours.
In the operation method, in the step 6), the animal culture pond is divided into a plurality of independent isolated culture areas, and the fairy shrimp, the tubificidae, the snail and the ornamental fish are respectively cultured.
Compared with the prior art, the biogas slurry ecological treatment culture system and the operation method thereof utilize high-content nitrogen and phosphorus inorganic salt in the biogas slurry, so that the biogas slurry is treated to be used as nutrition of algae to provide energy, and simultaneously, carbon dioxide in the biogas is used as algae culture raw materials, thereby not only solving the problem of the cost of algae culture, but also purifying and utilizing the biogas and the biogas slurry, reducing the environmental pollution of the biogas slurry, further carrying out animal breeding through algae propagation, optimizing the water quality of animal breeding, improving the environment and increasing the economic, social and ecological benefits; in addition, the biogas slurry is subjected to primary treatment, then is used for providing nutrients for algae cultivation, further algae is used as feed for animal feeding, biogas slurry residues are used as farmland fertilizer, the poultry are fed by the algae, aquatic products and the feed, and excrement of the poultry is used as raw materials of the biogas slurry to form recyclable ecological cultivation.
Drawings
FIG. 1 is an overall schematic diagram of the biogas slurry ecological treatment culture system.
In the figure, 1, a solid-liquid separation tank; 101. a plurality of steps; 102. a slag discharge pipe; 2. a decomposition treatment tank; 201. a biogas collection cover; 202. a biofilm; 3. an aeration treatment tank; 301. a gas supply nozzle; 302. a partition plate; 4. an acid-base adjusting tank; 401. a stirring paddle; 5. an algae culture pond; 501. a culture medium; 502. a cover layer; 503. lifting the dam; 504. cutting the net rack; 6. an animal culture pond; 601. a sewage draining outlet; 602. a sun shade.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the biogas slurry ecological treatment culture system comprises a solid-liquid separation tank 1, a decomposition treatment tank 2, an aeration treatment tank 3, an acid-base regulation tank 4, an algae culture tank 5 and an animal culture tank 6 which are arranged according to a treatment process sequence, wherein the solid-liquid separation tank 1, the decomposition treatment tank 2, the aeration treatment tank 3, the acid-base regulation tank 4, the algae culture tank 5 and the animal culture tank 6 are sequentially connected in series end to end through connectors; a poultry house is arranged above the solid-liquid separation tank 1, poultry is cultured in the poultry house, a grid floor is arranged at the bottom of the poultry house, and the lower part of the grid floor is connected with the solid-liquid separation tank 1 through a drainage pipe; the solid-liquid separation tank 1 is provided with a liquid inlet end and a liquid outlet end, a liquid inlet is arranged at the bottom of the liquid inlet end, a multistage step 101 which is gradually raised is arranged at the inner side of the liquid outlet end, a liquid outlet is arranged at the top of the liquid outlet end, the multistage step 101 is provided with a net-shaped step surface, a slag discharge pipe 102 is arranged at the bottom of the liquid outlet end, a valve is arranged on the slag discharge pipe 102, the slag discharge pipe 102 is connected with an experimental farmland for planting poultry feed or crops, and the solid-liquid separation tank 1 is connected with a sterilizer through a pipeline; a liquid inlet is formed in the top of one side of the decomposition treatment tank 2, a liquid outlet is formed in the top of the other side of the decomposition treatment tank 2, the liquid outlet is higher than the liquid inlet, a biological membrane 202 is arranged in the decomposition treatment tank 2, the biological membrane 202 sequentially comprises a filter material layer, an anaerobic layer and an aerobic layer from bottom to top, an attachment liquid layer is formed on the upper surface of the aerobic layer, a flowing liquid layer is formed on the upper surface of the attachment liquid layer, and the anaerobic layer and the aerobic layer are gradually lifted along the liquid flowing direction; the top of one side of the aeration treatment tank 3 is a liquid inlet, the top of the other side is provided with a liquid outlet, the bottom of the aeration treatment tank 3 is provided with a plurality of air supply nozzles 301, the air supply nozzles 301 are connected with an air supply pump through pipelines, a plurality of partition plates 302 which are arranged in parallel are arranged in the aeration treatment tank 3, and the partition plates 302 are provided with honeycomb hole structures; the acid-base adjusting tank 4 is connected with an adjusting chemical box through a chemical supply pipe, a flow valve is arranged on the chemical supply pipe, an acid-base detector is arranged in the acid-base adjusting tank 4, and a stirring paddle 401 is also arranged in the acid-base adjusting tank 4; the top of one side of the algae cultivation pool 5 is a liquid inlet, the top of the other side of the algae cultivation pool is provided with a liquid outlet, the liquid outlet is higher than the position of the liquid inlet, a culture medium 501 is laid at the bottom of the algae cultivation pool 5, a covering layer 502 is arranged on the top surface of the culture medium 501, an algae cutting assembly is arranged at the upper part of an inner cavity of the algae cultivation pool 5, the algae cutting assembly comprises a pair of cutting net racks 504 with reverse strokes, each cutting net rack 504 is connected by a driving machine, and the grid edges of the cutting net; the top of 6 one sides in pond is cultivateed to the animal is the inlet, and the opposite side bottom sets up drain 601, and animal cultivation pond 6 is through oxygen supply pipe connection pump oxygen machine, and animal cultivation pond 6 is through trading water piping connection and trading the water pump, and the top in pond 6 is cultivateed to the animal sets up sunshade 602, and sunshade 602 has expansion bracket and collapsible top facing.
In the biogas slurry ecological treatment breeding system, the solid-liquid separation tank 1, the decomposition treatment tank 2, the aeration treatment tank 3, the acid-base regulation tank 4, the algae culture tank 5 and the animal culture tank 6 can be arranged in a line in sequence, or arranged in multiple lines according to an operation site, and the process sequence of liquid flow is ensured to be correct by structures such as pipelines.
The solid-liquid separation tank 1 mainly utilizes the sedimentation characteristic to settle turbid impurities in the biogas slurry, and sends a relatively clear liquid flow to the next process tank, and the multistage step 101 and the mesh-shaped step surface thereof block overlarge impurities from floating at the liquid outlet in the sedimentation process so as to prevent the impurities from entering the next process tank.
The anaerobic layer and the aerobic layer in the decomposition treatment tank 2 form an inclined slope from thin to thick from the liquid inlet end to the liquid outlet end, so that the liquid flow speed is reduced, the contact time and the contact area of liquid flow and the biological membrane 202 are further increased, and the reaction effect is enhanced.
The aeration treatment tank 3 is additionally provided with a plurality of layers of partition plates 302, and the circulation of space is formed by honeycomb holes on the partition plates 302, so that the turbulence degree of inflow liquid is increased, and the overflowing speed of oxygen passing through the liquid is slowed down, thereby enhancing the combination action time and combination degree of gas and liquid.
The pH value of the biogas slurry is adjusted in the pH adjusting tank 4, and the adjustment of specific nutrient components refers to the supplement adjustment of the concentration, the pH value and nutrient salt components of the biogas slurry.
The algae cutting assembly in the algae culture pond 5 is of a bilateral symmetry structure, and specifically comprises a left driving machine connected with a cutting net rack 504, a right driving machine connected with the cutting net rack 504, and grid square holes with the same specification are formed in the cutting net rack 504, and under a normal state, algae grows upwards to pass through the grid square holes, and when the algae needs to be cut, the driving machines respectively pull the cutting net rack 504 leftwards or rightwards, so that the grid square holes of the two cutting net racks 504 are staggered, and then the top end parts of the algae are cut through the twisting and cutting action of the blades on two sides.
The animal culture pond 6 can be divided into a plurality of isolated culture areas, and each isolated culture area can be used for feeding aquatic products of the same kind, so that different species can be separated to avoid factors such as mutual casualties and the like. The foldable cover of the sunshade 602 can be configured to be opaque or translucent and can be shielded or unshielded depending on weather conditions, aquatic characteristics.
The top of the decomposition treatment pool 2 is provided with a methane collection cover 201, the methane collection cover 201 is communicated with the middle part of the algae culture pool 5 through an air pipeline, and a deodorization filter and a methane absorber are connected on the air pipeline in series. The main component of the methane subjected to deodorization and methane removal is carbon dioxide, and gas containing a large amount of carbon dioxide is introduced into the algae culture pond 5 to contribute to efficient propagation and growth of algae.
The inside of the decomposition treatment pool 2 is provided with a U-shaped through cavity, one side port of the U-shaped through cavity is connected with the liquid inlet of the decomposition treatment pool 2, and the other side port of the U-shaped through cavity is connected with the liquid outlet of the decomposition treatment pool 2. Biomembrane 202 is located the bottom that the U type leads to the chamber, and the liquid stream that gets into decomposition treatment pond 2 need lead to the chamber through the U type from the inlet and just can reach the liquid outlet, must carry out aerobic treatment through biomembrane 202 from this, and then effectively ensure the contact reaction of natural pond liquid and biomembrane 202, improves aerobic treatment effect, and the concentration of nutrients such as the turbidity of better adjustment natural pond liquid and nitrogen, phosphorus to adapt to follow-up algae growth.
The thickness of the culture medium 501 is 30 cm-60 cm; the covering layer 502 is provided with a plurality of ceramic particles, the diameter of each ceramic particle is 10-30 mm, a plurality of holes are formed in the ceramic particles, and the thickness of the covering layer 502 is 6-15 cm. The porous characteristic of the ceramic particles can be utilized to carry and store more oxygen in water, and meanwhile, nutrients in the water can be attached, so that beneficial growth assistance to the algae is provided.
A water level measurer is arranged in the algae culture pond 5, a lifting dam 503 is arranged at the liquid outlet of the algae culture pond 5, a filter screen is arranged at the top of the lifting dam 503, and the diameter of a mesh of the filter screen is 10 cm-15 cm. The actual water level height is measured by the water level measurer, and then the lifting height of the lifting dam 503 is operated according to the measured value, so that the water flow can enter the next process pool at a certain speed and quantity, and meanwhile, the operation effect of instantaneous water supplement or instantaneous closure can be performed on the next process pool. The oversize algae leaves are retained in the algae culture pond 5 through the filter screen, so that the water quality is prevented from being polluted due to the fact that the oversize algae leaves cannot be eaten by the raised animals.
The operation method of the biogas slurry ecological treatment breeding system comprises the following steps:
1) firstly, untreated biogas slurry enters a solid-liquid separation tank 1 through a liquid inlet, the flow rate of the biogas slurry is not more than 50m/h, the biogas slurry is gradually accumulated and ascends in the solid-liquid separation tank 1, meanwhile, a proper amount of disinfectant is added into the solid-liquid separation tank 1 by using a disinfector, turbid impurities in the biogas slurry sink to the bottom of the tank, relatively clear liquid is positioned at the upper part until the solid-liquid separation tank 1 is full, the clear liquid slowly flows out from the liquid outlet, a valve on a slag discharge pipe 102 is opened at intervals, and the impurities deposited at the bottom of the tank are discharged;
2) the settled biogas slurry sequentially enters a decomposition treatment tank 2, the flow rate of the biogas slurry does not exceed 40m/h, the biogas slurry and an anaerobic layer and an aerobic layer of a biological membrane 202 at the bottom of the tank respectively perform anaerobic and aerobic actions, organic matters in the biogas slurry are decomposed and metabolized through anaerobic reaction to promote formation of biogas, and the organic matters in the biogas slurry are subjected to oxidative decomposition through aerobic reaction;
3) further precipitating impurities in the decomposed biogas slurry in the decomposition treatment tank 2, then sequentially introducing clarified liquid into the aeration treatment tank 3, starting the air supply pump, adding a large amount of air into the biogas slurry through the plurality of air supply nozzles 301, and enhancing the turbulence degree, contact area and time of the gas and the liquid due to the structural blockage of the multilayer partition plates 302 so as to dissolve more air in the biogas slurry;
4) further precipitating impurities in the aerated biogas slurry in an aeration treatment tank 3, then sequentially introducing clarified liquid into an acid-base regulation tank 4, monitoring the pH value of the biogas slurry according to a pH value detector, controlling the opening of a flow valve according to a required pH value standard, injecting a proper amount of medicament into the biogas slurry by regulating a medicament box, simultaneously starting a stirring paddle 401 to stir so that the concentration of the biogas slurry is consistent, and regulating the concentration, the pH value and nutritional ingredients of the biogas slurry in the pH value regulation tank 4;
5) further precipitating impurities in the adjusted biogas slurry in an acid-base adjusting tank 4, then sequentially feeding clarified liquid into an algae culture tank 5, planting the roots of algae growing in the algae culture tank 5 into a culture medium 501, fixing the algae through an upper covering layer 502, fixing carbon dioxide in the biogas by the algae under photosynthesis, growing and propagating by using inorganic salts such as inorganic nitrogen, phosphorus and the like in the biogas slurry as nutrient sources, and simultaneously realizing water body purification of the biogas slurry; the tops of the algae are periodically cut by using the algae cutting assembly, and the cut algae leaves enter the next process pool along with the purified water body to be used as feed;
6) purifying and finally precipitating the biogas slurry in an algae culture pond 5, then sequentially introducing clarified liquid into an animal culture pond 6, starting a water exchange pump, pumping water into the animal culture pond 6 through a water exchange pipe, supplementing required water, properly diluting the concentration of the biogas slurry, simultaneously starting an oxygen pump to provide oxygen into the animal culture pond 6 through an oxygen supply pipe, adopting algae leaves as main feed in the animal culture pond 6, matching with proper auxiliary feed, and periodically starting a sewage discharge outlet 601 to discharge residues and excrement impurities deposited at the bottom of the pond;
7) the deposited impurities at the bottom of the solid-liquid separation tank 1 are periodically discharged to an experimental cultivated land and are used as poultry feed or fertilizer of crops to promote the growth of the poultry feed or the crops; the poultry obtains food sources through the algae in the algae culture pond 5 and/or the aquatic products in the animal culture pond 6 and/or the poultry feed in the experimental cultivated land; excrement produced by the poultry raised in the poultry house falls into the drainage pipe through the grid floor and further enters the solid-liquid separation tank 1 to be used as a raw material of biogas slurry.
In the step 1), the disinfectant is a sodium hypochlorite solution with the concentration of 8-10%, the addition amount of the disinfectant is 1-3 mL/L, sodium thiosulfate with the same concentration is used for neutralization, and the mass fraction of effective chlorine in a sodium hypochlorite stock solution is more than or equal to 10.0.
In the step 2), biogas generated by metabolizing the biogas slurry in the decomposition treatment tank 2 is collected, then methane components in the biogas are absorbed and odor is removed, and the biogas is conveyed to the algae culture tank 5 through a pipeline, so that residual carbon dioxide gas in the biogas contributes to the propagation and growth of algae.
In the step 3), adding quicklime with the water volume of 0.3-0.5 per mill in the aeration process, continuously aerating for 24 hours, then continuously aerating for 24 hours at intervals of 3 hours, and precipitating for 2 hours.
In the step 6), the animal culture pond 6 is divided into a plurality of independent isolated culture areas to respectively culture the fairy shrimp, the tubificidae, the snails and the ornamental fish.
The biogas slurry ecological treatment culture system and the operation method thereof utilize high-content nitrogen and phosphorus inorganic salt in the biogas slurry, so that the biogas slurry is treated to be used as nutrition of algae to provide energy, and simultaneously, carbon dioxide in the biogas is used as algae culture raw material, thereby not only solving the problem of the cost of algae culture, but also purifying and utilizing the biogas and the biogas slurry, reducing the environmental pollution of the biogas slurry, further carrying out animal breeding through algae propagation, optimizing the water quality of animal breeding, improving the environment and increasing the economic, social and ecological benefits; in addition, the biogas slurry is subjected to primary treatment, then is used for providing nutrients for algae cultivation, further algae is used as feed for animal feeding, biogas slurry residues are used as farmland fertilizer, the poultry are fed by the algae, aquatic products and the feed, and excrement of the poultry is used as raw materials of the biogas slurry to form recyclable ecological cultivation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the solid-liquid separation tank 1 is used more herein; a multistage step 101; a slag discharge pipe 102; a decomposition treatment tank 2; a biogas collection cover 201; a biofilm 202; an aeration treatment tank 3; an air supply shower 301; a partition 302; an acid-base adjusting tank 4; a stirring paddle 401; an algae culture pond 5; a culture medium 501; a cover layer 502; a lifting dam 503; cutting the wire frame 504; an animal culture pond 6; a sewage drain 601; sun shade 602, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (1)
1. A biogas slurry ecological treatment culture system is characterized by comprising a solid-liquid separation tank, a decomposition treatment tank, an aeration treatment tank, an acid-base regulation tank, an algae culture tank and an animal culture tank which are arranged according to a treatment process sequence, wherein the solid-liquid separation tank, the decomposition treatment tank, the aeration treatment tank, the acid-base regulation tank, the algae culture tank and the animal culture tank are sequentially connected in series end to end through connectors; a poultry house is arranged above the solid-liquid separation tank, poultry is cultured in the poultry house, a grid floor is arranged at the bottom of the poultry house, and the lower part of the grid floor is connected with the solid-liquid separation tank through a drainage pipe; the solid-liquid separation tank is provided with a liquid inlet end and a liquid outlet end, a liquid inlet is formed in the bottom of the liquid inlet end, a multistage step which is gradually raised is arranged on the inner side of the liquid outlet end, a liquid outlet is formed in the top of the liquid outlet end, the multistage step is provided with a net-shaped step surface, a slag discharge pipe is arranged at the bottom of the liquid outlet end, a valve is arranged on the slag discharge pipe, the slag discharge pipe is connected with an experimental farmland, the experimental farmland is used for planting poultry feed or crops, and the solid-liquid separation tank is connected with a sterilizer through a pipeline; the top of one side of the decomposition treatment tank is provided with a liquid inlet, the top of the other side of the decomposition treatment tank is provided with a liquid outlet, the liquid outlet is higher than the liquid inlet, a biological membrane is arranged in the decomposition treatment tank and sequentially comprises a filter material layer, an anaerobic layer and an aerobic layer from bottom to top, an attachment liquid layer is formed on the upper surface of the aerobic layer, a flowing liquid layer is formed on the upper surface of the attachment liquid layer, and the anaerobic layer and the aerobic layer are gradually raised along the liquid flowing direction; the top of one side of the aeration treatment tank is provided with a liquid inlet, the top of the other side of the aeration treatment tank is provided with a liquid outlet, the bottom of the aeration treatment tank is provided with a plurality of air supply nozzles, the air supply nozzles are connected with an air supply pump through pipelines, a plurality of partition plates which are arranged in parallel are arranged in the aeration treatment tank, and the partition plates are provided with honeycomb hole structures; the acid-base adjusting tank is connected with an adjusting agent box through a medicine supply pipe, a flow valve is arranged on the medicine supply pipe, an acid-base detector is arranged in the acid-base adjusting tank, and a stirring paddle is further arranged in the acid-base adjusting tank; the top of one side of the algae culture pond is a liquid inlet, the top of the other side of the algae culture pond is provided with a liquid outlet, the liquid outlet is higher than the position of the liquid inlet, a culture medium is laid at the bottom of the algae culture pond, a covering layer is arranged on the top surface of the culture medium, an algae cutting assembly is arranged at the upper part of an inner cavity of the algae culture pond and comprises a pair of cutting net racks with reverse strokes, each cutting net rack is connected by a driving machine, the algae cutting assemblies in the algae culture pond are in a bilateral symmetry structure, the left driving machine is connected with one cutting net rack, the driving machine on the right side is connected with one cutting net rack, grid square holes with equal specifications are arranged on the cutting net racks; the device comprises an animal culture pond, a decomposition treatment pond, a deodorization filter, a methane absorber, a U-shaped through cavity, a sewage outlet, an oxygen pump, an oxygen exchange pipe, a water exchange pump, a water exchange pipe, a sunshade cover, a biogas collection cover, a deodorization filter, a methane absorber, a decomposition treatment pond and a sewage treatment pond, wherein the top of one side of the animal culture pond is a liquid inlet, the bottom of the other side of the animal culture pond is provided with a sewage outlet, the animal culture pond is connected with the oxygen pump through the oxygen supply pipe, the water exchange pump is connected with the animal culture pond through the water exchange pipe, the sunshade cover is arranged above the animal culture pond and provided with a telescopic frame and a foldable cover surface, the top of the; the thickness of the culture medium is 60 cm; the covering layer is provided with a plurality of ceramic particles, the diameter of each ceramic particle is 30mm, a plurality of holes are formed in the ceramic particles, and the thickness of the covering layer is 6 cm; the water level measurer is arranged in the algae culture pond, the lifting dam is arranged at the liquid outlet of the algae culture pond, the top of the lifting dam is provided with the filter screen, and the diameter of the mesh of the filter screen is 10 cm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810860300.5A CN108975615B (en) | 2016-06-06 | 2016-06-06 | Biogas slurry ecological treatment breeding system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810860300.5A CN108975615B (en) | 2016-06-06 | 2016-06-06 | Biogas slurry ecological treatment breeding system |
CN201610393400.2A CN105859049B (en) | 2016-06-06 | 2016-06-06 | A kind of biogas slurry Ecological Disposal cultivating system and its operational method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610393400.2A Division CN105859049B (en) | 2016-06-06 | 2016-06-06 | A kind of biogas slurry Ecological Disposal cultivating system and its operational method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108975615A CN108975615A (en) | 2018-12-11 |
CN108975615B true CN108975615B (en) | 2021-03-23 |
Family
ID=56676987
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810860300.5A Expired - Fee Related CN108975615B (en) | 2016-06-06 | 2016-06-06 | Biogas slurry ecological treatment breeding system |
CN201810860296.2A Expired - Fee Related CN108975614B (en) | 2016-06-06 | 2016-06-06 | Operation method of biogas slurry ecological treatment culture system |
CN201610393400.2A Active CN105859049B (en) | 2016-06-06 | 2016-06-06 | A kind of biogas slurry Ecological Disposal cultivating system and its operational method |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810860296.2A Expired - Fee Related CN108975614B (en) | 2016-06-06 | 2016-06-06 | Operation method of biogas slurry ecological treatment culture system |
CN201610393400.2A Active CN105859049B (en) | 2016-06-06 | 2016-06-06 | A kind of biogas slurry Ecological Disposal cultivating system and its operational method |
Country Status (1)
Country | Link |
---|---|
CN (3) | CN108975615B (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106334431B (en) * | 2016-09-28 | 2019-08-02 | 农业部沼气科学研究所 | A kind of method of electrolyte processing biogas and biogas slurry |
CN107162327A (en) * | 2017-06-05 | 2017-09-15 | 浙江水利水电学院 | A kind of method of use microorganism treating sewage |
CN109769448B (en) * | 2019-01-23 | 2020-11-06 | 合肥绿叶园林工程有限责任公司 | Nutrient solution supply device for rapid propagation of aquatic green plants |
CN110282815A (en) * | 2019-06-11 | 2019-09-27 | 芜湖浩睿环保科技有限公司 | A kind of rural sewage ecological processing system and technique coupling modern cultivation technique |
CN110128181A (en) * | 2019-06-14 | 2019-08-16 | 武汉益锦祥生物环保有限公司 | A kind of production method and process units of the phycomycete fertilizer based on biogas slurry |
CN110372111A (en) * | 2019-07-04 | 2019-10-25 | 之间万维(北京)水环境技术有限公司 | A kind of water oxygenation equipment |
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 |
CN113185068B (en) * | 2021-06-10 | 2022-08-09 | 桂林理工大学 | Combined type organic wastewater treatment system |
CN113620421B (en) * | 2021-07-30 | 2023-11-03 | 陈翠娥 | Rosin resin printing ink production wastewater treatment equipment and treatment method thereof |
CN113975866B (en) * | 2021-10-22 | 2022-09-13 | 惠州市盛世机械科技有限公司 | Solid-liquid separation device with biogas treatment structure for excrement culture storage pool |
CN113998842B (en) * | 2021-11-25 | 2023-08-22 | 石玉龙 | Biological treatment and recovery process for cultivation wastewater |
CN114190304A (en) * | 2021-12-10 | 2022-03-18 | 福建省农业科学院农业工程技术研究所 | Breeding method for realizing symbiosis of fish and grass by utilizing biogas slurry |
CN114451327B (en) * | 2022-02-24 | 2023-08-29 | 山西晋龙养殖股份有限公司 | Henhouse tail end dust collector and henhouse |
CN114920427A (en) * | 2022-02-24 | 2022-08-19 | 江西禾一生物科技有限公司 | Livestock and poultry breeding wastewater microalgae resource utilization system |
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 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549932A (en) * | 2009-05-14 | 2009-10-07 | 蔡志武 | Integrated production method of organic sewage/waste residue treatment, microalgae culturing and oil refining |
CN101602538A (en) * | 2009-07-27 | 2009-12-16 | 浙江林学院 | Natural pond liquid ecological purification apparatus and method |
CN201785284U (en) * | 2009-07-17 | 2011-04-06 | 北京美华博大环境工程有限公司 | Biological aerated filter |
CN102161550A (en) * | 2011-01-13 | 2011-08-24 | 蔡志武 | Method for producing feed additive from livestock and poultry breeding wastewater and purifying breeding wastewater to reclaimed water |
CN202218569U (en) * | 2011-07-20 | 2012-05-16 | 宁波大学 | Zero-emission circulatory water breeding system |
CN102992497A (en) * | 2012-12-25 | 2013-03-27 | 复旦大学 | Method capable of simultaneously purifying biogas slurry and enhancing biogas grade |
CN103396950A (en) * | 2013-08-09 | 2013-11-20 | 烟台大学 | Biogas slurry ecological purification method based on microalgae cultivation |
CN104609675A (en) * | 2015-02-15 | 2015-05-13 | 陈英旭 | Ecological comprehensive treatment method of dairy farm breeding wastewater |
CN105621789A (en) * | 2015-12-21 | 2016-06-01 | 浙江清华长三角研究院 | Microalgal culture based biogas liquid treatment device and method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100105127A1 (en) * | 2008-10-24 | 2010-04-29 | Margin Consulting, Llc | Systems and methods for generating resources using wastes |
CN104521726B (en) * | 2014-12-22 | 2017-02-01 | 嘉兴职业技术学院 | Grading breeding device for breeding through biogas slurry and breeding method of grading breeding device |
CN105400697A (en) * | 2014-12-30 | 2016-03-16 | 浙江大学 | Method for purifying undiluted anaerobic fermentation tail liquid by growing microalgae in carbon dioxide environment |
-
2016
- 2016-06-06 CN CN201810860300.5A patent/CN108975615B/en not_active Expired - Fee Related
- 2016-06-06 CN CN201810860296.2A patent/CN108975614B/en not_active Expired - Fee Related
- 2016-06-06 CN CN201610393400.2A patent/CN105859049B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101549932A (en) * | 2009-05-14 | 2009-10-07 | 蔡志武 | Integrated production method of organic sewage/waste residue treatment, microalgae culturing and oil refining |
CN201785284U (en) * | 2009-07-17 | 2011-04-06 | 北京美华博大环境工程有限公司 | Biological aerated filter |
CN101602538A (en) * | 2009-07-27 | 2009-12-16 | 浙江林学院 | Natural pond liquid ecological purification apparatus and method |
CN102161550A (en) * | 2011-01-13 | 2011-08-24 | 蔡志武 | Method for producing feed additive from livestock and poultry breeding wastewater and purifying breeding wastewater to reclaimed water |
CN202218569U (en) * | 2011-07-20 | 2012-05-16 | 宁波大学 | Zero-emission circulatory water breeding system |
CN102992497A (en) * | 2012-12-25 | 2013-03-27 | 复旦大学 | Method capable of simultaneously purifying biogas slurry and enhancing biogas grade |
CN103396950A (en) * | 2013-08-09 | 2013-11-20 | 烟台大学 | Biogas slurry ecological purification method based on microalgae cultivation |
CN104609675A (en) * | 2015-02-15 | 2015-05-13 | 陈英旭 | Ecological comprehensive treatment method of dairy farm breeding wastewater |
CN105621789A (en) * | 2015-12-21 | 2016-06-01 | 浙江清华长三角研究院 | Microalgal culture based biogas liquid treatment device and method |
Also Published As
Publication number | Publication date |
---|---|
CN108975615A (en) | 2018-12-11 |
CN108975614A (en) | 2018-12-11 |
CN105859049A (en) | 2016-08-17 |
CN108975614B (en) | 2021-03-26 |
CN105859049B (en) | 2019-02-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108975615B (en) | Biogas slurry ecological treatment breeding system | |
CN108947134B (en) | Biogas slurry light treatment breeding system | |
JP6471181B2 (en) | Large-scale optical capture bioreactor for water purification and operation method | |
CN108439711A (en) | A kind of marine culture waste water integrated treatment purification system and method | |
CN105621789B (en) | A kind of biogas slurry treatment device and method based on microdisk electrode | |
CN204317279U (en) | Aquatic ecological culturing system | |
CN204848572U (en) | Birds is raised and grows effluent treatment plant | |
WO2014190571A1 (en) | System combining aquaculture and soil-less agricultural planting | |
CN101503264A (en) | Method for ectopically and ecologically repairing eutrophication water | |
CN106035190A (en) | Dual-channel water processing method of factory-like circulating sea water system | |
CN108739343A (en) | A kind of industrial fish farming tail washings circulation utilization method of fish dish win-win | |
CN206101330U (en) | Intergrowth farming systems of aquaculture water circulating system and aquatic livestock and little algae | |
CN109399798A (en) | A kind of precipitating algae pond-helotisn ecology board slot-microorganism filter tank water treatment system and processing method | |
CN219752089U (en) | Resource continuous treatment system for purifying biogas slurry based on energy chlorella | |
CN208956743U (en) | A kind of raising fish and shrimp pond convenient for blowdown | |
CN104086038B (en) | Flower of Aztec Marigold extracts the integrated conduct method of the squeezing sewage of xenthophylls | |
CN204325067U (en) | The circularly purifying process cultivating system that biological filter wetland combines | |
CN107265755A (en) | The water treatment system and method for sealing and circulating aquaculture | |
CN212345003U (en) | Fish pond system for water circulation purification | |
CN109399799A (en) | A kind of water process algae case, water treatment system and method for treating water | |
CN203985548U (en) | The cultivating system of a kind of simple and easy high yield and ecological, environmental protective | |
CN208791377U (en) | A kind of device of aquaculture pond water body high-efficient purification | |
CN106085834B (en) | A kind of biogas slurry biological cleaning cultivating system and its operational method | |
CN105000761A (en) | Method for removing nitrogen elements in high-density fish culture circulating water | |
CN110946108A (en) | Fish pond system for water circulation purification |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210304 Address after: No. 6-63, Dayuan village, Baishuiyang Town, Linhai City, Taizhou City, Zhejiang Province Applicant after: Cai Min Address before: 314400 13 Nong Li Dai, Long Xiao village, Yuanhua Town, Haining City, Jiaxing, Zhejiang Applicant before: Wang Jiaying |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210323 |