CN115140844A - Novel livestock breeding wastewater treatment method - Google Patents
Novel livestock breeding wastewater treatment method Download PDFInfo
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- CN115140844A CN115140844A CN202210868587.2A CN202210868587A CN115140844A CN 115140844 A CN115140844 A CN 115140844A CN 202210868587 A CN202210868587 A CN 202210868587A CN 115140844 A CN115140844 A CN 115140844A
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 244000144972 livestock Species 0.000 title claims description 16
- 238000009395 breeding Methods 0.000 title claims description 15
- 230000001488 breeding effect Effects 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002028 Biomass Substances 0.000 claims abstract description 9
- 244000211187 Lepidium sativum Species 0.000 claims description 24
- 235000007849 Lepidium sativum Nutrition 0.000 claims description 21
- 235000013311 vegetables Nutrition 0.000 claims description 18
- 239000013049 sediment Substances 0.000 claims description 14
- 241000251468 Actinopterygii Species 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 241000252185 Cobitidae Species 0.000 claims description 10
- 235000017879 Nasturtium officinale Nutrition 0.000 claims description 8
- 240000005407 Nasturtium officinale Species 0.000 claims description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 3
- 241001609213 Carassius carassius Species 0.000 claims description 2
- 241001122122 Chanodichthys ilishaeformis Species 0.000 claims description 2
- 241000252230 Ctenopharyngodon idella Species 0.000 claims description 2
- 244000268590 Euryale ferox Species 0.000 claims description 2
- 235000006487 Euryale ferox Nutrition 0.000 claims description 2
- 241000252498 Ictalurus punctatus Species 0.000 claims description 2
- 240000008436 Ipomoea aquatica Species 0.000 claims description 2
- 235000019004 Ipomoea aquatica Nutrition 0.000 claims description 2
- 240000008415 Lactuca sativa Species 0.000 claims description 2
- 235000003228 Lactuca sativa Nutrition 0.000 claims description 2
- 241001275890 Megalobrama amblycephala Species 0.000 claims description 2
- 241000376029 Tachysurus fulvidraco Species 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000009897 systematic effect Effects 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 11
- 239000011574 phosphorus Substances 0.000 abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002351 wastewater Substances 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 238000003306 harvesting Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 5
- 230000000050 nutritive effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 244000144977 poultry Species 0.000 description 4
- 240000008881 Oenanthe javanica Species 0.000 description 3
- 235000000365 Oenanthe javanica Nutrition 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 241000938542 Oenanthe aquatica Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000020774 essential nutrients Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
-
- 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
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Hydroponics (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a novel livestock-raising wastewater treatment method, which obtains an optimal fish-vegetable symbiotic biomass ratio by selecting a specific fish-vegetable symbiotic system, fully utilizes water space, greatly saves raising cost and workload, improves the nitrogen and phosphorus removal rate of water, can well treat wastewater, increases the yield of floating bed plants, adopts a floating bed cultivation mode, is beneficial to harvesting and reduces manual workload.
Description
Technical Field
The invention relates to a novel livestock breeding wastewater method, and belongs to the technical field of water treatment.
Background
With the scale enlargement of the livestock and poultry industry in China, the total amount of waste generated in the breeding process is gradually increased, and the negative influence of the waste water containing pollutants of high-concentration ammonia nitrogen, total nitrogen and total phosphorus on the ecological environment is larger. In recent years, livestock and poultry breeding wastewater becomes one of main sources of water pollution emission in China, and livestock and poultry breeding waste treatment becomes a great importance for the development of livestock and poultry industry.
The domestic treatment method for the aquaculture wastewater mainly adopts different treatment technologies and combined processes such as a physical and chemical method, a biological method and the like, but the technical measures have the problems of high operation investment cost, operational responsibility and the like. The aquatic plant method treatment method is a novel aquaculture wastewater remediation technology, and mainly utilizes the absorption effect of the root system of the aquatic plant to enrich nutrient salts such as nitrogen and phosphorus in the water body, so as to achieve the purpose of purifying aquaculture wastewater. At present, a good cress absorption method with a floating bed is applied. The floating bed cress is added into the culture wastewater treatment pond/pond, has the advantages of fast growth, good stress resistance, high medicine and food value and the like, is easy to manage and harvest, and has a very high application prospect in culture wastewater treatment.
In the traditional method for removing water pollution by floating bed cress, in the late growth stage of the cress, most of the nutritive salt in the water is settled to the surface of the sediment, and the residual nutritive salt in the water is quickly absorbed by the roots of the cress, so that the overlying water has the trend of nutrient salt deficiency, and the cress is further caused to lack essential nutrient elements for growth, and further the phenomena of vane yellowing, short and small plants, stagnant growth and the like of cress plants occur. Moreover, because the water body disturbance is small, the nutritive salt deposited on the surface of the sediment is difficult to be absorbed by the cress, and the biogas slurry absorption effect, the cress cultivation effect and the economic benefit are finally influenced.
Aiming at the problems, on the basis of a floating bed cress method, benthic fishes are added, and a novel fish-vegetable symbiotic culture wastewater treatment system (hereinafter referred to as the system) is constructed, so that the problems that sediment nutritive salt cannot be utilized, the supply of covering water nutritive salt is insufficient in the later period and the like in the floating bed cress culture wastewater treatment process are solved.
Disclosure of Invention
The invention discloses a novel livestock breeding wastewater method, which comprises the following steps,
step 1: selecting a culture area: selecting a specific fish-vegetable symbiotic system;
step 2: system base: adding sediment into a fish-vegetable symbiotic system as a substrate, and adding biogas slurry to be purified into the system, wherein the concentration of ammonia nitrogen in the biogas slurry is 10-30 mg/L, and the water level is not lower than 1m;
and step 3: systematic fish and vegetable cultivation: after the biogas slurry is settled for one week, floating bed vegetables can be added, and fish can be thrown in after the vegetables grow stably.
Further, the fish and vegetable symbiotic system in the step 1 comprises a fish pond and a hydroponic pond.
Further, the sediment in step 2 is pond bottom sediment, which is usually clay, silt, organic matter and various mineral mixtures.
Further, the floating bed vegetables in the step 3 comprise a PPR pipe and plastic perforated gaskets which are assembled into a 1m multiplied by 1m floating bed, the whole vegetables are inserted into the perforated gaskets, the aperture of each gasket is 3-5cm, and 2-3 vegetables are inserted into each hole.
Further, the floating bed interval is 0.3-0.7m, preferably 0.5m.
Further, the biomass suitable for the cultivation of the vegetables in the step 3 is 3 to 4kg/m 2 3-5 kg/m of fish biomass 2 。
Furthermore, the vegetables in step 3 are one or more of water spinach, gordon euryale seed, cress, watercress and lettuce, and the water cress is preferred.
Further, the fish in the step 3 is one or more of crucian carp, grass carp, channel catfish, megalobrama amblycephala, loach, erythroculter ilishaeformis and pelteobagrus fulvidraco, and preferably loach.
On the basis of the traditional 'aquatic economic plant waste water absorption and cultivation method', the system provides a 'fish-vegetable' co-cultivation mode which can effectively improve the removal rate of nitrogen and phosphorus in the water body and improve the economic benefit, and obtains an optimal 'fish-vegetable' co-cultivation biomass ratio through cultivation of floating bed vegetables and benthic fishes.
Detailed Description
The present invention will be explained in more detail with reference to examples, which are provided only for illustrating the technical solutions of the present invention and the spirit and scope of the present invention are not limited thereto.
Example 1:
the system comprises the following specific steps:
1. biological material selection
Selecting high-temperature-resistant, strong-disease-resistant and healthy cress seedlings, and selecting local loaches or Taiwan loaches as loaches.
2. Floating bed cress assembly
Assembling a 1m × 1m floating bed by using a PPR pipe and a plastic perforated gasket, inserting the whole cress into the perforated gasket, wherein the aperture of the gasket is about 5cm, 2-3 cress are inserted into each hole, and the suitable biomass for cress cultivation is 3-4 kg/m 2 。
3. The specific method comprises the following steps: selecting a specific fish-vegetable symbiotic system, adding sediment into the system as a substrate, adding the biogas slurry to be purified into the system, and if the ammonia nitrogen concentration of the biogas slurry is too high, diluting with clear water, wherein the ammonia nitrogen concentration in the biogas slurry is controlled to be 10-30 mg/L. Adding the diluted biogas slurry into the system, wherein the water level is not lower than 1m, adding water dropwort on a floating bed after the biogas slurry is settled for one week, the distance between the floating beds is 0.5m, after the water dropwort grows stably, the stable growth time of the water dropwort is about 7-15 days, and then putting loaches, wherein the loach biomass is 3-5 kg/m 2 。
After 56 days of operation, the system finally reduces the ammonia nitrogen concentration in the water body by 35.15%, the nitrate nitrogen concentration by 51.83%, the total phosphorus concentration by 5.84% and the COD content by 86.31%. The phosphorus concentration in the deposit was reduced by 13.8%. The yield of the water fennel can reach 11.46kg/m 2 The system can be operated all the year round and can be applied to a field system in equal proportion.
Example 2:
a blank control group (only sediment and culture wastewater are added into the system), a water cress floating bed group (water cress floating bed is added on the basis of the blank control group) and a fish-vegetable symbiotic group (water cress floating bed and loach are added on the basis of the blank control group) of the system are set to carry out system operation for 56 days, and the results are compared from three aspects of the relative growth rate of water cress, the average weight of a water cress single plant and the total phosphorus concentration of sediment, and are shown in table 1:
table 1: influence of different control groups on cress growth and total phosphorus concentration of sediment
The data in the table 1 can show that the relative growth rate of cress under the fish-vegetable symbiotic group is 43.66 +/-0.8 mg/g d, the average weight of a single cress plant is 20.9 +/-2.4 g, the relative growth rate is obviously higher than that of a floating bed cress group and a blank control group, and in addition, the detection result of total phosphorus in the sediment is found, compared with the two control groups, the fish-vegetable symbiotic group system can effectively reduce the total phosphorus concentration in the sediment, effectively absorbs and converts nutrient salt into cress plants, brings the system out, and reduces the nutrient salt load of the system.
The system discloses a novel livestock-raising wastewater treatment method, a biomass ratio which is most suitable for fish-vegetable symbiosis is obtained by selecting a specific fish-vegetable symbiotic system, the water space is fully utilized, the raising cost and workload are greatly saved, the nitrogen and phosphorus removal rate of the water is improved, wastewater can be well treated, the yield of floating bed plants is increased, the floating bed cultivation mode is favorable for harvesting, and the manual workload is reduced.
Although the present invention has been described in detail above, those skilled in the art will appreciate that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.
Claims (8)
1. A novel livestock breeding wastewater treatment method is characterized in that: comprises the following steps of (a) carrying out,
step 1: selecting a culture area: selecting a specific fish-vegetable symbiotic system;
step 2: system base: adding sediment into a fish-vegetable symbiotic system as a substrate, and adding biogas slurry to be purified into the system, wherein the concentration of ammonia nitrogen in the biogas slurry is 10-30 mg/L, and the water level is not lower than 1m;
and step 3: systematic fish and vegetable cultivation: after the biogas slurry is settled for one week, floating bed vegetables can be added, and fish can be thrown after the vegetables grow stably.
2. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: the fish-vegetable symbiotic system in the step 1 comprises a fish pond and a hydroponic pond.
3. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: the sediment in the step 2 is pond bottom mud, which is usually clay, silt, organic matters and various mineral mixtures.
4. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: and 3, assembling the floating bed vegetables containing the PPR pipe and the plastic perforated gasket into a 1m multiplied by 1m floating bed, inserting the whole vegetable into the perforated gasket, wherein the aperture of the gasket is 3-5cm, and 2-3 vegetables are inserted into each hole.
5. The novel livestock breeding wastewater treatment method according to claim 4, characterized in that: the floating bed interval is 0.3-0.7m, preferably 0.5m.
6. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: the suitable biomass for cultivating the vegetables in the step 3 is 3-4 kg/m 2 3-5 kg/m of fish biomass 2 。
7. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: the vegetables in the step 3 are one or more of water spinach, gordon euryale seed, cress, watercress and lettuce, and cress is preferred.
8. The novel livestock breeding wastewater treatment method according to claim 1, characterized in that: the fish in the step 3 is one or more of crucian carp, grass carp, channel catfish, megalobrama amblycephala, loach, culter ilishaeformis and pelteobagrus fulvidraco, and is preferably loach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868587.2A CN115140844A (en) | 2022-07-22 | 2022-07-22 | Novel livestock breeding wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868587.2A CN115140844A (en) | 2022-07-22 | 2022-07-22 | Novel livestock breeding wastewater treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN115140844A true CN115140844A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210868587.2A Pending CN115140844A (en) | 2022-07-22 | 2022-07-22 | Novel livestock breeding wastewater treatment method |
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| CN (1) | CN115140844A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR20210025434A (en) * | 2019-08-27 | 2021-03-09 | 이종산 | Growing method of fish and vegetables using circulating farming of natural ecosystem |
| CN112806307A (en) * | 2021-03-11 | 2021-05-18 | 李凯 | Fish, vegetable and shellfish symbiotic type engineering circulating water double-layer culture tank |
| CN113443786A (en) * | 2021-07-06 | 2021-09-28 | 重庆春江环保科技有限公司 | Biogas slurry treatment and resource utilization system and method |
-
2022
- 2022-07-22 CN CN202210868587.2A patent/CN115140844A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| CN103864225A (en) * | 2014-02-27 | 2014-06-18 | 蒋石容 | Method for weight reduction treatment and utilization of livestock and fowl manure and wastewater |
| CN106171930A (en) * | 2016-06-25 | 2016-12-07 | 梁青青 | Roof balcony body of wall fish cauliflower grass symbiosis water planting afforestation ecological system |
| CN110337925A (en) * | 2019-07-18 | 2019-10-18 | 安徽润航农业科技开发有限公司 | A kind of middle mountain China fir Chinese celery snakeheaded fish stereo ecological symbiotic cultivation method |
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| CN113443786A (en) * | 2021-07-06 | 2021-09-28 | 重庆春江环保科技有限公司 | Biogas slurry treatment and resource utilization system and method |
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