CN115417504A - Submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress - Google Patents
Submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress Download PDFInfo
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- CN115417504A CN115417504A CN202210971227.5A CN202210971227A CN115417504A CN 115417504 A CN115417504 A CN 115417504A CN 202210971227 A CN202210971227 A CN 202210971227A CN 115417504 A CN115417504 A CN 115417504A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 104
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 67
- 239000011574 phosphorus Substances 0.000 title claims abstract description 67
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 52
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000000126 substance Substances 0.000 claims abstract description 16
- 210000004027 cell Anatomy 0.000 claims abstract description 12
- 230000004060 metabolic process Effects 0.000 claims abstract description 12
- 210000003463 organelle Anatomy 0.000 claims abstract description 9
- 150000002500 ions Chemical class 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000003306 harvesting Methods 0.000 claims abstract description 6
- 230000000717 retained effect Effects 0.000 claims abstract description 5
- 241000196324 Embryophyta Species 0.000 claims description 73
- 241000894006 Bacteria Species 0.000 claims description 19
- 241000195493 Cryptophyta Species 0.000 claims description 19
- 241000498251 Hydrilla Species 0.000 claims description 13
- 241000252229 Carassius auratus Species 0.000 claims description 11
- 241000543445 Vallisneria spiralis Species 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 240000001592 Amaranthus caudatus Species 0.000 claims description 6
- 235000009328 Amaranthus caudatus Nutrition 0.000 claims description 6
- 241001107128 Myriophyllum Species 0.000 claims description 6
- 241001465754 Metazoa Species 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 230000001546 nitrifying effect Effects 0.000 claims description 4
- 210000003934 vacuole Anatomy 0.000 claims description 4
- 235000015097 nutrients Nutrition 0.000 abstract description 8
- 239000002351 wastewater Substances 0.000 abstract description 8
- 229910052785 arsenic Inorganic materials 0.000 description 23
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 23
- 230000000694 effects Effects 0.000 description 13
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 10
- 238000000746 purification Methods 0.000 description 5
- 239000002352 surface water Substances 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 241001523348 Picrasma Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 241000195940 Bryophyta Species 0.000 description 1
- 241000252233 Cyprinus carpio Species 0.000 description 1
- 235000008694 Humulus lupulus Nutrition 0.000 description 1
- 244000025221 Humulus lupulus Species 0.000 description 1
- 241001244577 Myriophyllum spicatum Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000004659 Picrasma quassioides Species 0.000 description 1
- 235000010913 Picrasma quassioides Nutrition 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 241000570011 Pomacea canaliculata Species 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 241001123263 Zostera Species 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 235000013311 vegetables Nutrition 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
- 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
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
Abstract
The invention relates to a submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress, which purifies a water body through combination of different plants, so that heavy metal ions in the water body are retained in organelles through absorption and metabolism of the corresponding plants, part of nitrogen is converted into nitrogen, and part of phosphorus is converted into cell substances; other nitrogen and phosphorus are converted into cell substances through metabolism of the plants, are stored in the plants and are finally removed out of the water body along with harvesting of the plants. The method aims at the wastewater containing heavy metals and high in nitrogen and phosphorus concentration, can remove nutrients such as nitrogen and phosphorus in the wastewater while bearing the stress of the heavy metals, finally realizes the restoration of the water body containing nitrogen and phosphorus stressed by the heavy metals, does not destroy the original water ecology in the process, and avoids secondary pollution.
Description
Technical Field
The present invention relates to horticulture; cultivation of vegetables, flowers, rice, fruit trees, grapes, hops or sea weeds; forestry; the technical field of watering, in particular to a submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress.
Background
With the progress of industry, more and more chemicals flow into daily life, wherein excessive nutrient salts such as nitrogen, phosphorus and the like flow into rivers and lakes through production lines and human life, the concentration of the nutrient salts exceeds the self-cleaning capacity of water, so that algae are propagated in large quantities, the dissolved oxygen in the water is reduced, further, the death of fishes and other aquatic animals is caused, and a large amount of heavy metal wastewater is generated in the industries such as metallurgy, mining and the like, and when the wastewater containing heavy metals enters eutrophic water, the treatment of the water is more difficult.
In sewage treatment plants, the process can be carried out by A 2 The process comprises the following steps of (1) removing nitrogen in wastewater by using nitrifying bacteria and denitrifying bacteria, removing phosphorus in water by using phosphorus accumulating bacteria, or adding a chemical agent to remove phosphorus in water from water by precipitation; however, in the watershed treatment, the addition of the medicament can destroy the original water ecology and even generate secondary pollutionAnd (6) dyeing.
And heavy metals in a sewage treatment plant are removed mainly by adding medicaments to assist advanced treatment equipment, and similarly, in basin treatment, the added medicaments can cause secondary pollution.
Disclosure of Invention
The invention solves the problems in the prior art, provides an optimized submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress, selects submerged plants aiming at wastewater containing heavy metals and eutrophication at the same time, removes nutrients such as nitrogen and phosphorus in the water while bearing higher heavy metal stress, and finally realizes the restoration of the eutrophication water body stressed by the heavy metals.
The technical scheme adopted by the invention is that the method for interplanting the submerged plants for removing nitrogen and phosphorus under the stress of the heavy metals purifies the water body through the combination of different plants, so that heavy metal ions in the water body are remained in organelles through the absorption and metabolism of the corresponding plants, part of nitrogen is converted into nitrogen, and part of phosphorus is converted into cell substances; other nitrogen and phosphorus are converted into cell substances through metabolism of the plants, are stored in the plants and are finally removed out of the water body along with harvesting of the plants.
Preferably, the organelles include vacuoles, cell walls.
Preferably, the plant root system creates an anaerobic, anoxic or aerobic environment, and part of nitrogen acts on nitrified bacteria, denitrifying bacteria and phosphorus accumulating bacteria.
Preferably, part of the phosphorus is acted upon by the polyphosphate bacteria.
Preferably, the plant is one or more of tape grass, hydrilla verticillata, hornworts and watermifoil.
Preferably, the height of the tape grass is 20-50 cm, the width is 1.0-1.5 cm, and cutting planting is adopted.
Preferably, the plant height of the hydrilla verticillata is 10-15mm, the width is 1-1.5mm, and cuttage planting is adopted.
Preferably, the stem section of the golden fish algae is 2-3 sections, the plant height is 5-8cm, and cuttage planting is adopted.
Preferably, the stem section of the spike-shaped myriophyllum is 2-3 nodes, the plant height is 5-8cm, and cuttage planting is adopted.
In the invention, the planting density of the tape grass is 50-70 plants/m 2 ；
The planting density of the hydrilla verticillata is 7-10 strains/m 2 ；
The planting density of the golden fish algae is 4-6 strains/m 2 ；
The planting density of the myriophyllum spicatum is 4-6 strains/m 2 。
Preferably, in the method, the herbivorous benthic animals are cleaned.
The invention relates to an optimized method for interplanting submerged plants for nitrogen and phosphorus removal under heavy metal stress, which purifies a water body through the combination of different plants, so that heavy metal ions in the water body are retained in organelles through the absorption and metabolism of the corresponding plants, part of nitrogen is converted into nitrogen, and part of phosphorus is converted into cell substances; other nitrogen and phosphorus are converted into cell substances through metabolism of the plants, are stored in the plants and are finally removed out of the water body along with harvesting of the plants.
The method aims at the wastewater containing heavy metals and high in nitrogen and phosphorus concentration, can remove nutrients such as nitrogen and phosphorus in the wastewater while bearing the stress of the heavy metals, finally realizes the restoration of the water body containing nitrogen and phosphorus stressed by the heavy metals, does not destroy the original water ecology in the process, and avoids secondary pollution.
Drawings
FIG. 1 is a graph showing the effect of purifying arsenic in example 1 of the present invention;
FIG. 2 is a graph showing the ammonia nitrogen purification effect of example 1 of the present invention;
FIG. 3 is a graph showing the effect of purifying total phosphorus in example 1 of the present invention;
FIG. 4 is a graph showing the effect of arsenic purification in example 2 of the present invention;
FIG. 5 is a graph showing the ammonia nitrogen purification effect of example 2 of the present invention;
FIG. 6 is a graph showing the effect of purifying total phosphorus in example 2 of the present invention;
FIG. 7 is a graph showing the effect of arsenic purification in example 3 of the present invention;
FIG. 8 is a graph showing the ammonia nitrogen purification effect of example 3 of the present invention;
FIG. 9 is a graph showing the effect of purifying total phosphorus in example 3 of the present invention;
in fig. 1 to 9, the abscissa represents the sampling time, and the ordinate represents the corresponding heavy metal effluent concentration.
Detailed Description
The present invention is described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The invention relates to a submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress, which purifies a water body through combination of different plants, so that heavy metal ions in the water body are retained in organelles through absorption and metabolism of the corresponding plants, part of nitrogen is converted into nitrogen, and part of phosphorus is converted into cell substances; other nitrogen and phosphorus are converted into cell substances through metabolism of the plants, are stored in the plants and are finally removed out of the water body along with harvesting of the plants.
The organelles include vacuoles, cell walls.
The plant root system creates anaerobic, anoxic or aerobic environment, and part of nitrogen corresponds to the action of nitrifying bacteria, denitrifying bacteria and phosphorus accumulating bacteria.
Part of the phosphorus is acted by phosphorus accumulating bacteria.
In the invention, the water body is purified in an environment-friendly way through the combination of different plants.
In the invention, the heavy metal ions can be retained in vacuole, cell wall and other organelles through the absorption and metabolism of plants.
In the invention, a part of nitrogen is converted into nitrogen by nitrifying bacteria, denitrifying bacteria and phosphorus accumulating bacteria through anaerobic, anoxic and aerobic environments created by plant roots; a part of the phosphorus is converted into cell material by phosphorus accumulating bacteria in the environment; and the other part of nutrient substances such as nitrogen, phosphorus and the like are converted into cell substances through plant metabolism and stored in the plant body, and finally are moved out of the water body along with the harvesting of the plant.
The plant is one or more of tape grass, hydrilla verticillata, goldfish algae and foxtail spicatus.
The height of the tape grass is 20-50 cm, the width is 1.0-1.5 cm, and cutting planting is adopted.
The plant height of the hydrilla verticillata is 10-15mm, the width is 1-1.5mm, and cutting planting is adopted.
The stem section of the Goldfish algae is 2-3 sections, the plant height is 5-8cm, and cuttage planting is adopted.
The stem section of the spike-shaped myriophyllum is 2-3 sections, the plant height is 5-8cm, and cuttage planting is adopted.
In the invention, one or more of four submerged plants of eel grass, hydrilla verticillata, goldfish algae and foxtail spicatus are selected, and generally four submerged plants can be used together.
In the invention, the tape grass can reduce and remove a large amount of nitrogen and phosphorus nutritive salt, can accumulate and remove a large amount of heavy metal, and has wide application prospect in the treatment of eutrophic lakes in the middle and lower reaches of Yangtze river.
In the invention, the hydrilla verticillata has better adsorption effect on heavy metal ions in the water body, including but not limited to As (V).
According to the invention, the Goldfish algae has good enrichment effect on different heavy metals, good tolerance on arsenic and excellent enrichment effect.
In the invention, the spike-shaped myriophyllum can absorb the nutrition of nitrogen and phosphorus in the substrate through roots and can also utilize the nutrient substances in water through stems and leaves, the nitrogen and the phosphorus are absorbed to synthesize the structural composition substances of the plant, meanwhile, part of heavy metals and organic matters are detoxified and then stored in the body or degraded in the body, when the myriophyllum is harvested and transported out of an aquatic ecosystem, a large amount of nutrient substances are output from the water body, and thus the effect of purifying the water body is achieved.
In the invention, the tape grass is planted by cutting, and the planting density is 50-70 plants/m 2 (ii) a Cutting black algae at a planting density of 7-10 plants/m 2 (ii) a The Goldfish algae is planted by cutting with planting density of 4-6 plants/m 2 (ii) a Cutting planting is carried out on the watermifoil with the planting density of 4-6 plants/m 2 。
In the invention, the tape grass is a plant with the plant height of 20-50 cm and the width of 1.0-1.5 cm; selecting 10-15mm of plant with width of 1-1.5mm from hydrilla verticillata; selecting 2-3 stem segments of Goldfish algae and 5-8cm long plants; the ear-shaped myriophyllum is selected from 2-3 sections of stem and 5-8cm long plant.
In the method, herbivorous benthic animals are cleaned.
In the invention, the herbivorous benthonic animals comprise Bullospira, pomacea canaliculata and the like, and are prevented from excessively grazing tender stems, tender leaves and the like of aquatic weeds.
In the invention, the disease residues also need to be removed in time, and good transparency and dissolved oxygen are ensured to prevent and treat the leaf blight.
In the invention, the interplanting of submerged plants for nitrogen and phosphorus removal under heavy metal stress is realized by the following examples.
Example 1
Under the initial concentration of 0.26mg/L of arsenic, 2.53mg/L of ammonia nitrogen and 0.18mg/L of total phosphorus, the picrasma, the hydrilla, the goldfish algae and the spicate foxtail algae with the specifications and the planting density are interplanted, and the water quality concentration changes within one month as shown in figures 1-3:
when the initial concentration of arsenic in the water body is 0.26mg/L, by adopting the interplanting method, the concentration of arsenic in the water body is gradually reduced along with the time, and the concentration of arsenic in the outlet water reaches 0.1mg/L by 28 days, so that the water body reaches the IV-class water standard of surface water (GB 3838-2002);
when the initial concentration of ammonia nitrogen is 2.53mg/L, the interplanting method is adopted, the concentration of arsenic in the water body is gradually reduced along with the time, and the concentration is 0.31mg/L by the 21 st day, so that the water body reaches the standard of surface water class II water;
when the initial concentration of the total phosphorus is 0.18mg/L, the interplanting method is adopted, the arsenic concentration in the water body is gradually reduced along with the time, and the concentration is 0.08mg/L by 28 days, so that the water body reaches the standard of surface second-class water;
if the culture time of the interplanting combination is prolonged, the arsenic concentration is expected to reach the standard of surface second-class water.
Example 2
Under the initial concentration of 0.62mg/L of arsenic, 2.53mg/L of ammonia nitrogen and 0.28mg/L of total phosphorus, the picrasma quassioides, the hydrilla verticillata, the golden carp algae and the spicate foxtail algae are interplanted according to the specifications and planting density, and within one month, the water quality concentration changes as shown in figures 4-6:
when the initial concentration of arsenic in the water body is 0.62mg/L, the interplanting method is adopted, the concentration of arsenic in the water body is gradually reduced along with the time, the concentration of arsenic in the effluent reaches 0.27mg/L by 28 days, and the enrichment rate reaches 56.5%;
when the initial concentration of ammonia nitrogen is 2.53mg/L, the interplanting method is adopted, the arsenic concentration in the water body is gradually reduced along with the time, and the concentration is 0.281mg/L by 28 days, so that the water body reaches the standard of surface water class II water;
when the initial concentration of the total phosphorus is 0.28mg/L, the interplanting method is adopted, the arsenic concentration in the water body is gradually reduced along with the time, and the concentration is 0.18mg/L by 28 days, so that the water body reaches the standard of surface three types of water;
if the culture time of the interplanting combination is prolonged, the concentration of arsenic and phosphorus is expected to reach the standard of surface second-class water.
Example 3
Under the initial concentration of 1.34mg/L of arsenic, 2.02 mg/L of ammonia nitrogen and 0.56mg/L of total phosphorus, the picrasma, the hydrilla, the goldfish algae and the spicate foxtail algae with the specifications and the planting density are interplanted, and the water quality concentration changes within one month as shown in figures 7-9:
when the initial concentration of arsenic in the water body is 1.34mg/L, the interplanting method is adopted, the concentration of arsenic in the water body is gradually reduced along with the time, the concentration of arsenic in the effluent reaches 0.686mg/L by 28 days, and the enrichment rate is 48.8%;
when the initial concentration of ammonia nitrogen is 2.53mg/L, the ammonia nitrogen concentration in the water body is gradually reduced along with the time lapse by adopting the interplanting method, and the concentration is 0.243mg/L by the 21 st day, so that the water body reaches the standard of surface water class II water;
when the initial concentration of the total phosphorus is 0.56mg/L, the interplanting method is adopted, the concentration of the total phosphorus in the water body is gradually reduced along with the time, and the concentration is 0.25mg/L by 28 days, so that the water body reaches the standard of surface IV type water;
if the culture time of the interplanting combination is prolonged, the concentration of arsenic and total phosphorus is expected to reach the standard of second class water on the earth surface.
Claims (10)
1. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress is characterized by comprising the following steps of: purifying the water body through the combination of different plants, so that heavy metal ions in the water body are retained in organelles through the absorption and metabolism of the corresponding plants, part of nitrogen is converted into nitrogen, and part of phosphorus is converted into cell substances; other nitrogen and phosphorus are converted into cell substances through metabolism of the plants, are stored in the plants and are finally removed out of the water body along with harvesting of the plants.
2. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 1 is characterized in that: the organelles include vacuoles, cell walls.
3. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 1 is characterized in that: the plant root system creates anaerobic, anoxic or aerobic environment, and part of nitrogen corresponds to the action of nitrifying bacteria, denitrifying bacteria and phosphorus accumulating bacteria.
4. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 3 is characterized in that: part of phosphorus is acted by phosphorus accumulating bacteria.
5. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 1 is characterized in that: the plant is one or more of tape grass, hydrilla verticillata, goldfish algae and foxtail spicatus.
6. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 5 is characterized in that: the height of the tape grass is 20-50 cm, the width is 1.0-1.5 cm, and cutting planting is adopted.
7. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 5, wherein the method comprises the following steps: the plant height of the hydrilla verticillata is 10-15mm, the width is 1-1.5mm, and cuttage planting is adopted.
8. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 5, wherein the method comprises the following steps: the stem section of the Goldfish algae is 2-3 sections, the plant height is 5-8cm, and the Goldfish algae is planted by cutting.
9. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 5, wherein the method comprises the following steps: the stem section of the spike-shaped myriophyllum is 2-3 sections, the plant height is 5-8cm, and cuttage planting is adopted.
10. The submerged plant interplanting method for nitrogen and phosphorus removal under heavy metal stress of claim 1 is characterized in that: in the method, herbivorous benthic animals are cleaned.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000037144A (en) * | 1998-07-23 | 2000-02-08 | Haruo Fujimoto | Raft for water culture of edible plant, for purification of water quality, and forming live reef |
| CN101691257A (en) * | 2009-09-07 | 2010-04-07 | 南京大学 | Submerged ecological bed for purifying eutrophic waterbody and application thereof |
| CN104030458A (en) * | 2014-05-21 | 2014-09-10 | 东莞市华中生物科技有限公司 | Turbidity-reducing and algae-inhibiting method |
| CN104230000A (en) * | 2014-09-17 | 2014-12-24 | 上海大学 | Nitrogen and phosphorus removal treatment method for eutrophic water body and dynamic flowing water treatment device |
| CN108383243A (en) * | 2018-04-03 | 2018-08-10 | 中国科学院武汉植物园 | A method of being enriched with eutrophication water heavy metal using the configuration of submerged plant |
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- 2022-08-12 CN CN202210971227.5A patent/CN115417504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000037144A (en) * | 1998-07-23 | 2000-02-08 | Haruo Fujimoto | Raft for water culture of edible plant, for purification of water quality, and forming live reef |
| CN101691257A (en) * | 2009-09-07 | 2010-04-07 | 南京大学 | Submerged ecological bed for purifying eutrophic waterbody and application thereof |
| CN104030458A (en) * | 2014-05-21 | 2014-09-10 | 东莞市华中生物科技有限公司 | Turbidity-reducing and algae-inhibiting method |
| CN104230000A (en) * | 2014-09-17 | 2014-12-24 | 上海大学 | Nitrogen and phosphorus removal treatment method for eutrophic water body and dynamic flowing water treatment device |
| CN108383243A (en) * | 2018-04-03 | 2018-08-10 | 中国科学院武汉植物园 | A method of being enriched with eutrophication water heavy metal using the configuration of submerged plant |
Non-Patent Citations (1)
| Title |
|---|
| 苗淑菊 等: "《环境科学知识词典》", 31 October 1993, 山东教育出版社, pages: 43 - 43 * |
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