CN117566874A - In-situ ecological improvement restoration agent for substrate based on river and lake habitat improvement - Google Patents
In-situ ecological improvement restoration agent for substrate based on river and lake habitat improvement Download PDFInfo
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- CN117566874A CN117566874A CN202311280799.XA CN202311280799A CN117566874A CN 117566874 A CN117566874 A CN 117566874A CN 202311280799 A CN202311280799 A CN 202311280799A CN 117566874 A CN117566874 A CN 117566874A
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 88
- 230000006872 improvement Effects 0.000 title claims abstract description 41
- 239000000758 substrate Substances 0.000 title claims abstract description 37
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000701 coagulant Substances 0.000 claims abstract description 45
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 45
- 239000007800 oxidant agent Substances 0.000 claims abstract description 34
- 239000003381 stabilizer Substances 0.000 claims abstract description 33
- 230000001590 oxidative effect Effects 0.000 claims abstract description 32
- 239000000853 adhesive Substances 0.000 claims abstract description 30
- 230000001070 adhesive effect Effects 0.000 claims abstract description 30
- 239000003814 drug Substances 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 10
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 9
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims abstract description 9
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims abstract description 9
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 12
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 claims description 8
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims description 8
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 0.000 claims description 8
- 229940045872 sodium percarbonate Drugs 0.000 claims description 8
- 229950009390 symclosene Drugs 0.000 claims description 8
- 239000012985 polymerization agent Substances 0.000 claims description 7
- 235000019359 magnesium stearate Nutrition 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 4
- 235000013539 calcium stearate Nutrition 0.000 claims description 4
- 239000008116 calcium stearate Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 22
- 239000002131 composite material Substances 0.000 abstract description 8
- 230000000813 microbial effect Effects 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 8
- 239000010802 sludge Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 14
- 239000013049 sediment Substances 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 238000005189 flocculation Methods 0.000 description 9
- 230000016615 flocculation Effects 0.000 description 9
- 244000005700 microbiome Species 0.000 description 9
- 240000001592 Amaranthus caudatus Species 0.000 description 8
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000008394 flocculating agent Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 238000007726 management method Methods 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 241000195493 Cryptophyta Species 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
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- 241000282414 Homo sapiens Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 229920001222 biopolymer Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
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- 238000010668 complexation reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 231100000784 hepatotoxin Toxicity 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
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- 231100000765 toxin Toxicity 0.000 description 2
- 108700012359 toxins Proteins 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000235342 Saccharomycetes Species 0.000 description 1
- 244000111146 Sonchus arvensis Species 0.000 description 1
- 235000008132 Sonchus arvensis ssp. uliginosus Nutrition 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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Classifications
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- 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
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a substrate in-situ ecological improvement restoration agent based on river and lake habitat improvement, wherein the improvement agent is a compressed medicament tablet, the whole medicament tablet consists of five structures, namely a coagulant aid, a stabilizer, an oxygenation agent, an oxidant and an adhesive from outside to inside, wherein the stabilizer is arranged in the coagulant aid and the oxygenation agent, the oxygenation agent is arranged in the oxidant and the stabilizer, the oxidant is arranged in the innermost part of the medicament tablet, the coagulant aid is arranged in the outermost part of the medicament tablet, and the coagulant aid consists of polyacrylamide, aluminum sulfate, polymeric ferric sulfate and NOC-1 according to the mass ratio of 1:1:1:2, mixing, drying and tabletting, and the invention relates to the technical field of ecological restoration of river and lake substrate and purification of river and lake water quality, and has the advantages that: through the combination of the polyacrylamide and the NOC-1 flocculant, not only can a better purifying effect be obtained, but also the total adding amount of the flocculant is reduced, so that the using amount of the composite microbial flocculant is reduced, and the investment of ecological restoration engineering is effectively reduced.
Description
Technical Field
The invention relates to the technical field of ecological restoration of river and lake substrates and purification of river and lake water quality, in particular to a substrate in-situ ecological improvement restoration agent based on river and lake habitat improvement.
Background
Along with the development of industry and the influence of human activities, environmental pollution is more and more serious, environmental management is more and more important, and river and lake management is an important management project, and the river and lake pollution damages ecological habitats of the river and lake, so that the self-purification capability of the river and lake is lost, and the internal environment is worse and worse, therefore, the river and lake management is urgent, more chemical agent abuse occurs under the condition of eagerly improving the environment of the river and lake, secondary pollution is caused, the ecological habitats of the river and lake are further damaged, a large number of environment-friendly management methods exist at present, and the management period is longer, so that the method cannot better adapt to the development requirements of fast age;
most of the existing substrate ecological restoration agents are chemical composite restoration agents and microorganism composite restoration agents which are prepared by direct mixing, and the substrate restoration agents have certain effects on ecological restoration of rivers and lakes, but the defects of low utilization rate, low reaction efficiency, low subsequent effects and the like in a short time exist in a direct adding mode, the effects of each component in the corresponding stages cannot be fully exerted, a large amount of substrate sludge restoration agents are needed to be added to have certain effects, and the risk of secondary pollution exists.
Disclosure of Invention
The invention aims to provide a substrate in-situ ecological improvement restoration agent based on river and lake habitat improvement.
In order to solve the problems set forth in the background art, the invention provides the following technical scheme: the in-situ ecological improvement restoration agent for the substrate based on river and lake habitat improvement comprises a compressed medicament tablet, wherein the medicament tablet is integrally composed of five structures, namely a coagulant aid, a stabilizer, an oxygenation agent, an oxidant and an adhesive from outside to inside, wherein the stabilizer is arranged in the coagulant aid and the oxygenation agent, the oxygenation agent is arranged in the oxidant and the stabilizer, the oxidant is arranged in the innermost part of the medicament tablet, the coagulant aid is arranged in the outermost part of the medicament tablet, and each structure is connected through the adhesive;
the coagulant aid is prepared from polyacrylamide, aluminum sulfate, polymeric ferric sulfate and NOC-1 according to the mass ratio of 1:1:1:2, mixing, drying and tabletting to prepare the coagulant aid, and adding a small amount of sodium bicarbonate powder into the coagulant aid for mixing.
As a further aspect of the invention: the stabilizer comprises magnesium stearate and calcium stearate according to the mass ratio of 1:1, which is wrapped inside the coagulant aid, and the two structures are adhered by a small amount of adhesive.
As a further aspect of the invention: the oxygenation agent is prepared from sodium percarbonate and a porous biological polymerization agent according to the mass ratio of 2:1 mixing and drying to carry out tabletting, wherein the oxygenation agent is wrapped in the stabilizing agent, and the two structures are adhered by a small amount of adhesive.
As a further aspect of the invention: the oxidant is prepared from hydrogen peroxide, aluminum potassium sulfate dodecahydrate and trichloroisocyanuric acid according to the mass ratio of 1:1:1, mixing and tabletting, wherein the oxidant is wrapped in the oxygenation agent, and two structures are adhered by a small amount of adhesive.
As a further aspect of the invention: the coagulant aid, the stabilizer, the oxygenation agent, the oxidant and the adhesive are prepared from the following components in percentage by mass:
as a further aspect of the invention: another group of repairing agents is set as an example for comparison, and the mass percentages of the coagulant aid, the stabilizing agent, the oxygenation agent, the oxidizing agent and the adhesive are as follows:
as a further aspect of the invention: before the coagulant aid internal substances are mixed and tabletted, the coagulant aid internal substances are required to be dried at 130 ℃, and tabletted is more compact and stable.
As a further aspect of the invention: the thickness of the oxygenation layer is proportional to the thickness of the river and lake substrate, the thickness of the stabilizing agent is proportional to the depth of water in the river and lake, and the thickness of the agent is changed according to different influences of different environments.
As a further aspect of the invention: the whole length of the improved repairing agent is 5-10cm, the width is 5-10cm, the whole thickness is 1-2cm, and the adhesive adhesion thickness is smaller and is not counted.
In the preparation process, the oxidant is compacted at the innermost part, the oxygenation agent is tightly wrapped on the outer ring of the oxidant through the adhesive, the stabilizer is tightly wrapped on the outer ring of the oxygenation agent through the adhesive, the coagulant aid is arranged at the outermost layer, the stabilizer is tightly wrapped on the outer ring of the stabilizer through the adhesive, and the whole repairing agents are tightly connected and mutually non-reactive.
According to the invention, the product is divided into four layers of medicaments according to the water ecological restoration process, the functions of each layer of medicament are different, the coagulant aid and the oxygenation agent mainly play roles in the process of descending from the surface of the river to the bottom, suspended colloid and other substances in water can be effectively flocculated and finally sunk to the bottom of the river, in the descending process, the porous biological polymerization agent in the oxygenation agent can leave beneficial microorganisms, the self-purification capacity of the water environment is enhanced, the self-restoration persistence of the water environment is ensured, and when the water environment is descended to the bottom, the components in the coagulant aid and the oxygenation agent can remain a small part and continuously act on the bottom mud to flocculate and compress the bottom mud, thereby providing a foundation for the functions of the oxidation layer while expanding the water environment capacity of the river and the lake, and simultaneously the oxygenation agent is sunk to the bottom of the lake to react with the bottom substrate.
The coagulant aid and the oxygenation agent mainly play roles in flocculation, complexation, oxygenation and stabilization respectively, wherein polyacrylamide, aluminum sulfate, polymeric ferric sulfate and NOC-1 in the coagulant aid have chemical and biological flocculation effects, inorganic flocculant and microbial flocculant are combined, partial suspended matters and colloid in water environment can be removed in the descending process of the river and the lake in deep water, no porous biological polymerizer in a flocculation layer can prevent oxidative substances in an oxidation layer from damaging partial biological structures, the combination of the two flocculants can not only obtain better purification effect, but also reduce the total addition amount of the flocculants, and the dosage of the composite microbial flocculant is reduced by 60-75 percent (mass fraction). The composite microbial flocculant and different chemical flocculants can completely meet the treatment requirement of high-turbidity water, and can eliminate or reduce the harm of the high-turbidity water to human beings, and sodium percarbonate in the oxygen increasing agent plays a role in quick release of oxygen, so that the instantaneous performance of underwater oxygen is ensured, the underwater oxygen is supplied, and the reaction of the sodium percarbonate on the river and lake habitat substrate is facilitated.
The stabilizing agent mainly plays a role in slowing down the reaction, and magnesium stearate is used as a powerful antibacterial preservative, can inhibit the growth and propagation of bacteria by blocking the synthesis of cell walls of the bacteria, and plays a great role in improving the habitat of rivers and lakes.
The main effect of the oxidant is to treat the sludge at the bottom, in the sludge treatment, the oxidant can effectively decompose organic components in the sludge to convert the organic components into inorganic matters, so that the effect of reducing the sludge amount is achieved, the oxidant can effectively decompose the sludge, kill bacteria, reduce peculiar smell and improve the treatment effect, the effect of hydrogen peroxide, aluminum potassium dodecahydrate sulfate and trichloroisocyanuric acid is to disinfect, enrich and sterilize the water at the bottom, the aluminum potassium dodecahydrate sulfate is beneficial to clear rivers and lakes, and the trichloroisocyanuric acid can play a good role in sterilizing, can oxidize ferrous iron and aluminum atoms in water into trivalent through oxidization, promote flocculation, improve the transparency of water and reduce the diffusion of heavy metal ions in the bottom sludge; nitrite in the sediment can be oxidized into nitrate, hydrogen sulfide is oxidized into sulfate, toxic and nondegradable organic pollutants are removed, and various algae toxins such as hepatotoxins generated by death of deposited algae are degraded.
The effect of the adhesive is to make each layer of medicament closely connected, not easy to scatter during storage, and influence the use, each layer closely connected through a small amount of adhesive, when a large amount of medicaments are put into rivers and lakes for use, secondary pollution can not be caused to water quality, and the repairing agent is more convenient to carry and store.
Another set of embodiments facilitate comparison of the ecological restoration agent and facilitate comparison of the effects of different quality agents on habitat improvement.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by combining the polyacrylamide and the NOC-1 flocculant, the two flocculants can be combined to obtain a better purifying effect, and the total adding amount of the flocculant can be reduced, so that the using amount of the composite microbial flocculant is reduced, the investment of ecological restoration engineering is effectively reduced, and the adding amount under the same effect is about 1/2 of that of like products in the market;
2. the ecological improvement repairing agent can be stored for a long time by adding various stabilizing agents, and the repairing agent needs to be stored under the condition of drying and normal temperature, so that the repairing agent can not react with water molecules in the air to influence the use;
3. the invention combines the porous biological polymerization agent and other effective chemical substances together through layering, realizes that the same substrate sludge repairing agent has biological and chemical effects at the same time, and purifies and disinfects the substrate of the river and lake habitat through the internal oxidant, so that the repairing agent is more convenient for improving the river and lake habitat.
Detailed Description
The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The porous biological polymerizer used in the invention is a high-efficiency water purification product which is formed by adding special compound microorganisms extracted from nature into various natural mineral powder and metabolites thereof, and the product is composed of various mineral substances, various microorganisms such as mould, saccharomycetes, actinomycetes and the like according to a specific formula. The preparation method of the porous bio-polymerizer is described in Chinese patent publication No. CN111018282A, entitled "porous bio-polymerizer for dewatering ecological dredging sediment of river and lake", the content of which is included in the present invention, wherein the porous bio-polymerizers used in example 1 and example 2 are the porous bio-polymerizers prepared in example one of the patent of the present invention.
According to the invention, the product is divided into four layers of medicaments according to the water ecological restoration process, the functions of each layer of medicament are different, the coagulant aid and the oxygenation agent mainly play roles in the process of descending from the surface of the river to the bottom, suspended colloid and other substances in water can be effectively flocculated and finally sunk to the bottom of the river, in the descending process, the porous biological polymerization agent in the oxygenation agent can leave beneficial microorganisms, the self-purification capacity of the water environment is enhanced, the self-restoration persistence of the water environment is ensured, and when the water environment is descended to the bottom, the components in the coagulant aid and the oxygenation agent can remain a small part and continuously act on the bottom mud to flocculate and compress the bottom mud, thereby providing a foundation for the functions of the oxidation layer while expanding the water environment capacity of the river and the lake, and simultaneously the oxygenation agent is sunk to the bottom of the lake to react with the bottom substrate.
The coagulant aid and the oxygenation agent mainly play roles in flocculation, complexation, oxygenation and stabilization respectively, wherein polyacrylamide, aluminum sulfate, polymeric ferric sulfate and NOC-1 in the coagulant aid have chemical and biological flocculation effects, inorganic flocculant and microbial flocculant are combined, partial suspended matters and colloid in water environment can be removed in the descending process of the river and the lake in deep water, no porous biological polymerizer in a flocculation layer can prevent oxidative substances in an oxidation layer from damaging partial biological structures, the combination of the two flocculants can not only obtain better purification effect, but also reduce the total addition amount of the flocculants, and the dosage of the composite microbial flocculant is reduced by 60-75 percent (mass fraction). The composite microbial flocculant and different chemical flocculants can completely meet the treatment requirement of high-turbidity water, and can eliminate or reduce the harm of the high-turbidity water to human beings, and sodium percarbonate in the oxygen increasing agent plays a role in quick release of oxygen, so that the instantaneous performance of underwater oxygen is ensured, the underwater oxygen is supplied, and the reaction of the sodium percarbonate on the river and lake habitat substrate is facilitated.
The stabilizing agent mainly plays a role in slowing down the reaction, and magnesium stearate is used as a powerful antibacterial preservative, can inhibit the growth and propagation of bacteria by blocking the synthesis of cell walls of the bacteria, and plays a great role in improving the habitat of rivers and lakes.
The main effect of the oxidant is to treat the sludge at the bottom, in the sludge treatment, the oxidant can effectively decompose organic components in the sludge to convert the organic components into inorganic matters, so that the effect of reducing the sludge amount is achieved, the oxidant can effectively decompose the sludge, kill bacteria, reduce peculiar smell and improve the treatment effect, the effect of hydrogen peroxide, aluminum potassium dodecahydrate sulfate and trichloroisocyanuric acid is to disinfect, enrich and sterilize the water at the bottom, the aluminum potassium dodecahydrate sulfate is beneficial to clear rivers and lakes, and the trichloroisocyanuric acid can play a good role in sterilizing, can oxidize ferrous iron and aluminum atoms in water into trivalent through oxidization, promote flocculation, improve the transparency of water and reduce the diffusion of heavy metal ions in the bottom sludge; can oxidize nitrite in the sediment into nitrate, oxidize sulfureted hydrogen into sulfate, remove toxic and nondegradable organic pollutants, degrade various algae toxins such as hepatotoxins generated by death of deposited algae
The aluminum sulfate and the polymeric ferric sulfate used in the invention are solid and commercial products, and the mass fractions of the aluminum sulfate and the polymeric ferric sulfate are 26%, 28% and 30%.
Embodiment one:
the outdoor medium-sized container is adopted to simulate the river and lake environment, the length of the container is 2m, the width of the container is 2m, and the height of the container is 1.8m. The test material adopts water and sediment of swan lake in the city of Anhui province and foxtail seeds with stronger adaptability, the container is placed outdoors, sunlight can irradiate and ventilate places, black and odorous sediment is evenly paved at the bottom of the container, the total thickness of the sediment is controlled to be about 30cm, the total water depth is about 1m, and foxtail seeds are buried in the mud at fixed points.
The substrate in-situ ecological improvement restoration agent for river and lake habitat improvement of the embodiment is prepared by the following method
Polyacrylamide: aluminum sulfate: polymeric ferric sulfate: NOC-1=1: 1:1:2;
magnesium stearate: calcium stearate = 1:1, a step of;
sodium percarbonate: porous biopolymer = 2:1, a step of;
hydrogen peroxide: aluminum potassium sulfate dodecahydrate: trichloroisocyanuric acid=1: 1:1, a step of;
the coagulant aid, the stabilizer, the oxygenation agent, the oxidant and the adhesive are formed into quantitative samples according to 20%, 22%, 36% and 2%, then the coagulant aid is subjected to tabletting treatment, the coagulant aid is coated outside the stabilizer through the adhesive, the stabilizer is coated outside the oxygenation agent through the adhesive, the oxygenation agent is coated outside the oxidant through the adhesive, the thickness of the coagulant aid, the stabilizer, the oxygenation agent and the oxidant is respectively 0.3cm, 0.4cm and 0.5cm after tabletting, and the total thickness is about 1.5cm.
The ecological improvement restoration agent with the proportion is added from the water surface, and the ecological improvement restoration agent can slowly sink to the bottom of the container because of larger buoyancy generated by larger surface area, and the coagulant aids on the upper layer and the lower layer and the effective components for increasing dissolved oxygen in the sedimentation process are quickly digested, so that the process that floating substances in the water body slowly generate flocs and flocculate further can be observed, the time required for the whole water environment to be clear and transparent is 8 days, and the water environment can be kept clear continuously in 7 days later; the micro water bubbles can appear in the container, the substrate modifying and repairing agent is settled to the bottom of the container to fully contact with the bottom sludge, the substrate modifying and repairing agent digestion and the bottom sludge modifying process are simultaneously carried out, the substrate sludge gradually turns yellow after 10 days under the action of the oxidizing agent and the action of the biological polymerization agent, and the grass seeds begin to germinate and grow at 11 days
Embodiment two:
the outdoor medium-sized container is adopted to simulate the river and lake environment, the length of the container is 2m, the width of the container is 2m, and the height of the container is 1.8m. The test material adopts water and sediment of swan lake in the city of Anhui province and foxtail seeds with stronger adaptability, the container is placed outdoors, sunlight can irradiate and ventilate places, black and odorous sediment is evenly paved at the bottom of the container, the total thickness of the sediment is controlled to be about 30cm, the total water depth is about 1.2m, and foxtail seeds are buried in the mud at fixed points.
The substrate in-situ ecological improvement restoration agent for river and lake habitat improvement of the embodiment is prepared by the following method
Polyacrylamide: aluminum sulfate: polymeric ferric sulfate: NOC-1=1: 1:1:2;
magnesium stearate: calcium stearate = 1:1, a step of;
sodium percarbonate: porous biopolymer = 2:1, a step of;
hydrogen peroxide: aluminum potassium sulfate dodecahydrate: trichloroisocyanuric acid=1: 1:1, a step of;
the coagulant aid, the stabilizer, the oxygenation agent, the oxidant and the adhesive are formed into quantitative samples according to 30%, 16%, 35%, 17% and 2%, then the coagulant aid is subjected to tabletting treatment, the coagulant aid is coated outside the stabilizer through the adhesive, the stabilizer is coated outside the oxygenation agent through the adhesive, the oxygenation agent is coated outside the oxidant through the adhesive, the thickness of the coagulant aid, the stabilizer, the oxygenation agent and the oxidant is respectively 0.5cm, 0.2cm, 0.6cm and 0.4cm after tabletting, and the total thickness is about 1.7cm.
The ecological improvement restoration agent with the proportion is added from the water surface, and the ecological improvement restoration agent can slowly sink to the bottom of the container because of larger buoyancy generated by larger surface area, and the coagulant aids on the upper layer and the lower layer and the effective components for increasing dissolved oxygen in the sedimentation process are quickly digested, so that the process that floating substances in the water body slowly generate flocs and flocculate further can be observed, the time required for the whole water environment to be clear and transparent is 5 days, and the water environment can be kept clear continuously in the 4-day later time; and tiny water bubbles can appear in the container, the substrate modifying and repairing agent is settled to the bottom of the container to be fully contacted with the bottom sludge, the substrate modifying and repairing agent digestion and the bottom sludge modifying process are simultaneously carried out, the substrate sludge gradually turns yellow after 7 days through the action of the oxidizing agent and the action of the biological polymerization agent, and the sowthistle herb seeds start to sprout and grow at 13 days.
Comparative example:
the outdoor medium-sized container is adopted to simulate the river and lake environment, the length of the container is 1m, the width of the container is 1m, and the height of the container is 1.5m. The experimental material adopts water and sediment in Swan lake of the Hetao city of Anhui province and foxtail algae seeds with stronger adaptability. Placing the container outdoors to ensure natural conditions, then spreading black and odorous sediment at the bottom of the container and adding the foxtail seeds at fixed points, wherein the total thickness of the sediment is 30cm, and the total water depth is 1m;
as a blank control group, the present example was restored under natural ecological conditions without adding any substrate modifying and repairing agent. Starting timing from the arrangement of the necessary conditions, under the self-generation and gravity sedimentation actions of beneficial microorganisms, a small part of floating substances in the water environment is digested and a large part of floating substances in the water environment are sunk, the time required for the whole water environment to be clear and transparent is 13 days, and small particles still float in the water environment after 13 days; due to the full integration of air dissolved oxygen, the bottom sludge environment is gradually improved and loosened, part of harmful substances in the bottom sludge are released, beneficial microorganisms are gradually activated and the types of the beneficial microorganisms become more, and under the slow repairing effect of the microorganisms, the bottom sludge becomes yellow gradually after 25 days; the foxtail seeds are not required to be self-nourished and eroded by harmful substances around the bottom mud within the natural recovery time of the mini-ecological system, so that the foxtail seeds are fished out to be rotten and deteriorated when 25 days.
Comparison table
The table shows that under the same conditions, the flocculation and oxygenation components of the coagulation promoting layer and the oxygenation layer have larger proportion, the time required for transparent and clear water environment is shorter, and the reduction of other effective components is represented, so that the time for repairing and yellowing the sediment is longer. The percentage of each layer needs to be adjusted according to the actual water depth and the pollution degree of the bottom mud.
Claims (9)
1. A substrate in-situ ecological improvement restoration agent based on river and lake habitat improvement is characterized in that: the modifier is a compressed medicament sheet, the whole medicament sheet consists of five structures, namely a coagulant aid, a stabilizer, an oxygenation agent, an oxidant and an adhesive from outside to inside, wherein the stabilizer is arranged in the coagulant aid and the oxygenation agent, the oxygenation agent is arranged in the oxidant and the stabilizer, the oxidant is arranged in the innermost part of the medicament sheet, the coagulant aid is arranged in the outermost part of the medicament sheet, and each structure is connected through the adhesive;
the coagulant aid is prepared from polyacrylamide, aluminum sulfate, polymeric ferric sulfate and NOC-1 according to the mass ratio of 1:1:1:2, mixing, drying and tabletting to prepare the coagulant aid, and adding a small amount of sodium bicarbonate powder into the coagulant aid for mixing.
2. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the stabilizer comprises magnesium stearate and calcium stearate according to the mass ratio of 1:1, which is wrapped inside the coagulant aid, and the two structures are adhered by a small amount of adhesive.
3. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the oxygenation agent is prepared from sodium percarbonate and a porous biological polymerization agent according to the mass ratio of 2:1 mixing and drying to carry out tabletting, wherein the oxygenation agent is wrapped in the stabilizing agent, and the two structures are adhered by a small amount of adhesive.
4. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the oxidant is prepared from hydrogen peroxide, aluminum potassium sulfate dodecahydrate and trichloroisocyanuric acid according to the mass ratio of 1:1:1, mixing and tabletting, wherein the oxidant is wrapped in the oxygenation agent, and two structures are adhered by a small amount of adhesive.
5. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the coagulant aid, the stabilizer, the oxygenation agent, the oxidant and the adhesive are prepared from the following components in percentage by mass:
6. the in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: another group of repairing agents is set as an example for comparison, and the mass percentages of the coagulant aid, the stabilizing agent, the oxygenation agent, the oxidizing agent and the adhesive are as follows:
7. the in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: before the coagulant aid internal substances are mixed and tabletted, the coagulant aid internal substances are required to be dried at 130 ℃, and tabletted is more compact and stable.
8. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the thickness of the oxygenation layer is proportional to the thickness of the river and lake substrate, the thickness of the stabilizing agent is proportional to the depth of water in the river and lake, and the thickness of the agent is changed according to different influences of different environments.
9. The in-situ ecological improvement restoration agent for a substrate based on river and lake habitat improvement according to claim 1, which is characterized in that: the whole length of the improved repairing agent is 5-10cm, the width is 5-10cm, the whole thickness is 1-2cm, and the adhesive adhesion thickness is smaller and is not counted.
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