CN108617563B - Bionic artificial algal reef and construction method thereof - Google Patents
Bionic artificial algal reef and construction method thereof Download PDFInfo
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- CN108617563B CN108617563B CN201810417863.7A CN201810417863A CN108617563B CN 108617563 B CN108617563 B CN 108617563B CN 201810417863 A CN201810417863 A CN 201810417863A CN 108617563 B CN108617563 B CN 108617563B
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- 239000011664 nicotinic acid Substances 0.000 title claims abstract 24
- 238000010276 construction Methods 0.000 title abstract 2
- 239000010802 sludge Substances 0.000 claims abstract 23
- 239000004566 building material Substances 0.000 claims abstract 12
- 238000001035 drying Methods 0.000 claims abstract 9
- 238000003756 stirring Methods 0.000 claims abstract 7
- 239000000463 material Substances 0.000 claims abstract 6
- 239000011248 coating agent Substances 0.000 claims abstract 4
- 238000000576 coating method Methods 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims abstract 4
- 239000002002 slurry Substances 0.000 claims abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000003466 welding Methods 0.000 claims abstract 4
- 238000013329 compounding Methods 0.000 claims abstract 3
- 238000011068 loading method Methods 0.000 claims abstract 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims 8
- 239000000843 powder Substances 0.000 claims 8
- 230000003592 biomimetic effect Effects 0.000 claims 7
- 239000003431 cross linking reagent Substances 0.000 claims 7
- 239000004925 Acrylic resin Substances 0.000 claims 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims 6
- 229920002401 polyacrylamide Polymers 0.000 claims 6
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims 6
- 238000002156 mixing Methods 0.000 claims 4
- 229910000278 bentonite Inorganic materials 0.000 claims 3
- 239000000440 bentonite Substances 0.000 claims 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims 3
- 239000002994 raw material Substances 0.000 claims 3
- 229920001503 Glucan Polymers 0.000 claims 2
- 238000007872 degassing Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 2
- 239000005416 organic matter Substances 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 230000001590 oxidative effect Effects 0.000 claims 2
- 238000012216 screening Methods 0.000 claims 2
- 238000007873 sieving Methods 0.000 claims 2
- BWZOPYPOZJBVLQ-UHFFFAOYSA-K aluminium glycinate Chemical group O[Al+]O.NCC([O-])=O BWZOPYPOZJBVLQ-UHFFFAOYSA-K 0.000 claims 1
- 229940015826 dihydroxyaluminum aminoacetate Drugs 0.000 claims 1
- 238000005189 flocculation Methods 0.000 claims 1
- 230000016615 flocculation Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
Classifications
-
- 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
- A01K61/70—Artificial fishing banks or reefs
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0436—Dredged harbour or river sludge
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/06—Acrylates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention relates to a bionic artificial algal reef and a construction method thereof, wherein the method comprises the following steps: firstly, preparing a bionic ecological building material S1, namely pretreating mud flat sludge; s2: loading an ordered mesoporous medium; s3: drying; s4: compounding; secondly, welding a bionic artificial algal reef framework; welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size; thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming; and fourthly, coating a bionic ecological building material layer, adding water with the mass of 40-50% into the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
Description
Technical Field
The invention relates to a bionic facility in ocean and a construction method thereof, in particular to a bionic artificial algal reef and a construction method thereof.
Background
The artificial algal reef is one kind of artificial reef and is one underwater structure for improving marine algae habitat and breeding fishery resource. After the algal reefs are put in, the exposed surfaces of the algal reefs can adsorb organisms and sediments, the succession process of a biological community is started, and a large amount of fixed and semi-fixed organisms such as algae, shellfish and echinoderm can be attached to the reefs after several months to years according to different conditions.
The seaweeds are attached to the reef or other stable matrix, and then the illumination and nutrient substances required for the growth and development of the seaweeds can be stably obtained. If the attachment is not firm, the water may be carried into deep sea or float to the sea surface after falling off from the substrate, and the water may die due to too weak or too strong light. A firm attachment matrix is the basis for the survival of algae.
At present, the materials for manufacturing the artificial algal reef mainly comprise stones, concrete, waste ships and the like, the materials for building are different, and the adhesion effects are also different. The rough reef body is more beneficial to the attachment and growth of seaweed than the smooth reef body. The traditional method is to promote the formation of algae communities by building grooves on the surface of a member, binding or throwing reefs after algae are attached in advance. However, the method is high in cost and is not beneficial to large-scale delivery. Most of the method is to directly put the reef made of stones, concrete, waste ships and other materials into the sea bottom, so that the algae spores or other propagules (such as fertilized eggs, propagules capable of vegetative reproduction and the like) in the seawater are naturally attached and grow, but the method has slow progress in forming the algae farm. The invention aims to solve the technical problem and provides a bionic artificial algal reef and a construction method thereof.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a bionic artificial algal reef and a construction method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
bionical artificial algal reef, the processing raw materials of bionical artificial algal reef main part includes reinforcing bar and concrete, the at least surface coating of bionical artificial algal reef main part has the bionical ecological building material layer of one deck thickness 2-5cm, bionical ecological building material's processing method step as follows:
s1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 30-45min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1-2h, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
placing the material obtained in the step S2 in a dryer, drying the material at the temperature of 80-105 ℃ until the water content is 0.1-1%, crushing the dried sludge, and sieving the crushed sludge through a 100-fold 120-mesh sieve to obtain fine sludge powder;
s4: compounding:
and uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to obtain a finished product of the bionic ecological building material.
Preferably, a certain amount of bionic ecological building materials are added into the processing raw materials of the bionic artificial algal reef main body, and the addition amount is 8-12% of the mass of the concrete.
Preferably, in step S2, the ordered mesoporous medium is magnetic ordered mesoporous carbon or a mixture of magnetic ordered mesoporous carbon and magnetic ordered mesoporous nickel ferrite in a mass ratio of 3-4: 1;
the addition amount of the organic bentonite is 1-3% of the mass of the mud flat sludge; the adding amount of the ordered mesoporous medium is 1-2% of the mass of the mud flat sludge.
Preferably, in step S4, the fine powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are as follows in parts by weight:
80-100 parts of fine mud powder
5-15 parts of sodium polyacrylate
1-20 parts of crosslinked polyacrylic resin
4-20 parts of nonionic polyacrylamide
0.5-20 parts of cross-linking agent
The cross-linking agent is dihydroxyaluminum aminoacetate.
Preferably, in step S4, the fine powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are as follows in parts by weight:
100 portions of fine mud powder
10 portions of sodium polyacrylate
10 portions of crosslinked polyacrylic resin
10 parts of nonionic polyacrylamide
5 parts of a crosslinking agent.
Preferably, in the step S1, the addition amount of the hydrogen peroxide is 5-6% of the mass of the mudflat sludge, and the mass concentration of the hydrogen peroxide is 20-30%.
Preferably, in step S1, after the oxidation pretreatment, water-insoluble glucan in an amount of 2 to 3% by mass of the mudflat sludge is further added for flocculation, and the specific operations are as follows:
after the oxidation treatment is finished, adding water-insoluble glucan, uniformly stirring, standing for 24-36h, removing mudflat sludge of the upper layer 1/4/-1/3 for application in the next batch, and treating the lower layer 2/3-3/4 mudflat sludge in the step S2.
The construction method of the bionic artificial algal reef comprises the following steps:
first, preparing a bionic ecological building material
S1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 30-45min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1-2h, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
placing the material obtained in the step S2 in a dryer, drying the material at the temperature of 80-105 ℃ until the water content is 0.1-1%, crushing the dried sludge, and sieving the crushed sludge through a 100-fold 120-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material;
secondly, welding a bionic artificial algal reef framework;
welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size;
thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming;
fourthly, coating the bionic ecological building material layer
And (3) adding water accounting for 40-50% of the mass of the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
Preferably, a certain amount of bionic ecological building materials are added into the concrete raw materials in the third step, and the addition amount is 10-20% of the mass of the concrete.
The invention has the beneficial effects that: the bionic ecological building material provided by the invention can be expanded into a gel when meeting water, has good water gathering and locking effects, is capable of gradually dissolving organic matters in water and slowly releasing or diffusing, and is beneficial to the attachment and growth of seaweed. The sludge has simple components, low organic matter content, much less loss on ignition than urban sludge, and larger proportion of raw materials, and the bionic ecological building material prepared by reasonable proportion has the properties of porosity and nutrient slow release, and is beneficial to the enrichment of algae plants.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
Example 1:
the bionic artificial algal reef comprises a bionic artificial algal reef body, wherein the processing raw materials of the bionic artificial algal reef body comprise reinforcing steel bars and concrete, and a layer of bionic ecological building material layer with the thickness of 2cm is coated on the surface of the bionic artificial algal reef body;
the construction method comprises the following steps:
first, preparing a bionic ecological building material
S1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 30min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1 hour, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
putting the material obtained in the step S2 into a dryer, drying the material at 80 ℃ until the water content is 1%, crushing the dried sludge, and sieving the crushed sludge with a 100-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material;
secondly, welding a bionic artificial algal reef framework;
welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size;
thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming;
fourthly, coating the bionic ecological building material layer
And (3) adding water with the mass accounting for 40% of the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
Specifically, in the present embodiment, in step S2, the ordered mesoporous medium is magnetic ordered mesoporous carbon or a mixture of magnetic ordered mesoporous carbon and magnetic ordered mesoporous nickel ferrite at a mass ratio of 3: 1;
the addition amount of the organic bentonite is 1 percent of the mass of the mud flat sludge; the adding amount of the ordered mesoporous medium is 1 percent of the mass of the mud flat sludge.
In step S4, the fine mud powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are composed of the following components in parts by weight:
80 portions of fine mud powder
5 parts of sodium polyacrylate
Crosslinked polyacrylic resin 1 part
4 parts of nonionic polyacrylamide
0.5 part of cross-linking agent
The cross-linking agent is dihydroxyaluminum aminoacetate;
in addition, in step S1, the addition amount of the hydrogen peroxide is 5% of the mass of the mudflat sludge, and the mass concentration of the hydrogen peroxide is 20%.
In step S1, after the oxidation pretreatment, adding water-insoluble glucan in an amount of 2% by mass of the mudflat sludge for flocculation, specifically:
and after the oxidation treatment is finished, adding water-insoluble glucan, uniformly stirring, standing for 24h, removing the mudflat sludge on the upper layer 1/4 for the next batch, and performing the step S2 on the mudflat sludge on the lower layer 3/4.
Example 2:
the bionic artificial algal reef comprises a bionic artificial algal reef body, wherein the processing raw materials of the bionic artificial algal reef body comprise reinforcing steel bars and concrete, and a layer of bionic ecological building material layer with the thickness of 5cm is coated on the surface of the bionic artificial algal reef body;
the construction method comprises the following steps:
first, preparing a bionic ecological building material
S1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 45min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 2 hours, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
putting the material obtained in the step S2 into a dryer, drying at 105 ℃ until the water content is 0.1%, crushing the dried sludge, and sieving with a 120-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material;
secondly, welding a bionic artificial algal reef framework;
welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size;
thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming;
fourthly, coating the bionic ecological building material layer
And (3) adding water with the mass accounting for 50% of the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
Specifically, in the present embodiment, in step S2, the ordered mesoporous medium is magnetic ordered mesoporous carbon or a mixture of magnetic ordered mesoporous carbon and magnetic ordered mesoporous nickel ferrite at a mass ratio of 4: 1;
the addition amount of the organic bentonite is 3 percent of the mass of the mud flat sludge; the adding amount of the ordered mesoporous medium is 2 percent of the mass of the mud flat sludge.
In step S4, the fine mud powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are composed of the following components in parts by weight:
100 portions of fine mud powder
15 portions of sodium polyacrylate
20 parts of crosslinked polyacrylic resin
20 parts of nonionic polyacrylamide
20 portions of cross-linking agent
The cross-linking agent is dihydroxyaluminum aminoacetate;
in the step S1, the addition amount of the hydrogen peroxide is 6% of the mass of the mudflat sludge, and the mass concentration of the hydrogen peroxide is 30%;
in step S1, after the oxidation pretreatment, adding water-insoluble glucan in an amount of 3% by mass of the mudflat sludge for flocculation, specifically:
and after the oxidation treatment is finished, adding water-insoluble glucan, uniformly stirring, standing for 24-36h, removing the mudflat sludge on the upper layer 1/3 for the next batch, and treating the lower layer 2/3 mudflat sludge in the step S2.
Example 3:
the bionic artificial algal reef comprises a bionic artificial algal reef body, wherein the processing raw materials of the bionic artificial algal reef body comprise reinforcing steel bars and concrete, and a layer of bionic ecological building material layer with the thickness of 4cm is coated on the surface of the bionic artificial algal reef body;
the construction method comprises the following steps:
first, preparing a bionic ecological building material
S1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 40min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1.5h, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
putting the material obtained in the step S2 into a dryer, drying at 95 ℃ until the water content is 0.5%, crushing the dried sludge, and sieving by a 110-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material;
secondly, welding a bionic artificial algal reef framework;
welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size;
thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming;
fourthly, coating the bionic ecological building material layer
And (3) adding water accounting for 45% of the mass of the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
Specifically, in the present embodiment, in step S2, the ordered mesoporous medium is magnetic ordered mesoporous carbon or a mixture of magnetic ordered mesoporous carbon and magnetic ordered mesoporous nickel ferrite at a mass ratio of 7: 2;
the addition amount of the organic bentonite is 2 percent of the mass of the mud flat sludge; the adding amount of the ordered mesoporous medium is 1.5 percent of the mass of the mud flat sludge.
In step S4, the fine mud powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are composed of the following components in parts by weight:
100 portions of fine mud powder
10 portions of sodium polyacrylate
10 portions of crosslinked polyacrylic resin
10 parts of nonionic polyacrylamide
5 parts of a crosslinking agent;
in addition, in step S1, the addition amount of the hydrogen peroxide is 5.5% of the mass of the mudflat sludge, and the mass concentration of the hydrogen peroxide is 25%.
In step S1, after the oxidation pretreatment, water-insoluble glucan having a mass of 2.5% of the mudflat sludge is added for flocculation, and the specific operations are as follows:
and after the oxidation treatment is finished, adding water-insoluble glucan, uniformly stirring, standing for 30h, removing the mudflat sludge of the upper layer 1/3 for the next batch, and treating the lower layer 2/3 mudflat sludge in the step S2.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. Bionical artificial algal reef, the processing raw materials of bionical artificial algal reef main part includes reinforcing bar and concrete, its characterized in that: the bionic artificial algal reef comprises a bionic artificial algal reef body and is characterized in that at least the surface of the bionic artificial algal reef body is coated with a bionic ecological building material layer with the thickness of 2-5cm, and the processing method of the bionic ecological building material comprises the following steps:
s1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 30-45min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1-2h, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
placing the material obtained in the step S2 in a dryer, drying the material at the temperature of 80-105 ℃ until the water content is 0.1-1%, crushing the dried sludge, and sieving the crushed sludge through a 100-fold 120-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, nonionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material, wherein the fine mud powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the nonionic polyacrylamide and the crosslinking agent are composed of the following components in parts by weight:
80-100 parts of fine mud powder
5-15 parts of sodium polyacrylate
1-20 parts of crosslinked polyacrylic resin
4-20 parts of nonionic polyacrylamide
0.5-20 parts of cross-linking agent
The cross-linking agent is dihydroxyaluminum aminoacetate.
2. The biomimetic artificial algal reef of claim 1, wherein: a certain amount of bionic ecological building materials are added into the processing raw materials of the bionic artificial algal reef main body, and the adding amount is 8-12% of the mass of the concrete.
3. The biomimetic artificial algal reef of claim 1 or 2, wherein: in step S2, the ordered mesoporous medium is magnetic ordered mesoporous carbon or a mixture of magnetic ordered mesoporous carbon and magnetic ordered mesoporous nickel ferrite according to a mass ratio of 3-4: 1;
the addition amount of the organic bentonite is 1-3% of the mass of the mud flat sludge; the adding amount of the ordered mesoporous medium is 1-2% of the mass of the mud flat sludge.
4. The biomimetic artificial algal reef of claim 1 or 2, wherein: in step S4, the fine mud powder, the sodium polyacrylate, the crosslinked polyacrylic resin, the non-ionic polyacrylamide and the crosslinking agent are composed of the following components in parts by weight:
100 portions of fine mud powder
10 portions of sodium polyacrylate
10 portions of crosslinked polyacrylic resin
10 parts of nonionic polyacrylamide
5 parts of a crosslinking agent.
5. The biomimetic artificial algal reef of claim 1 or 2, wherein:
in the step S1, the addition amount of the hydrogen peroxide is 5-6% of the mass of the mudflat sludge, and the mass concentration of the hydrogen peroxide is 20-30%.
6. The biomimetic artificial algal reef of claim 5, wherein: in step S1, after the oxidation pretreatment, adding water-insoluble glucan which accounts for 2-3% of the mass of the mudflat sludge for flocculation treatment, and the specific operation is as follows:
after the oxidation treatment is finished, adding water-insoluble glucan, uniformly stirring, standing for 24-36h, removing mudflat sludge of the upper layer 1/4/-1/3 for application in the next batch, and treating the lower layer 2/3-3/4 mudflat sludge in the step S2.
7. The method for constructing a biomimetic artificial algal reef of claim 1, wherein the method comprises the steps of:
first, preparing a bionic ecological building material
S1, pretreatment of mud flat sludge:
collecting sludge deposited in the mudflat area, screening out impurities in the sludge, adding a proper amount of hydrogen peroxide, fully stirring and reacting for 30-45min, and oxidizing and decomposing unstable organic matter components in the sludge;
s2: loading an ordered mesoporous medium:
adding a certain amount of organic bentonite and an ordered mesoporous medium into the mudflat sludge treated in the step S1, fully stirring for 1-2h, uniformly mixing, and then carrying out ultrasonic degassing;
s3: drying:
placing the material obtained in the step S2 in a dryer, drying the material at the temperature of 80-105 ℃ until the water content is 0.1-1%, crushing the dried sludge, and sieving the crushed sludge through a 100-fold 120-mesh sieve to obtain fine sludge powder;
s4: compounding:
uniformly mixing the fine mud powder with a certain amount of sodium polyacrylate, crosslinked polyacrylic resin, non-ionic polyacrylamide and a crosslinking agent to prepare a finished product of the bionic ecological building material;
secondly, welding a bionic artificial algal reef framework;
welding a bionic artificial algal reef framework by using reinforcing steel bars as materials according to a preset shape and size;
thirdly, pouring concrete into the bionic artificial algal reef framework, drying and forming;
fourthly, coating the bionic ecological building material layer
And (3) adding water with the mass of 40-50% into the ecological building material prepared in the first step, uniformly stirring to form slurry, uniformly coating the slurry on the outer surface of the bionic artificial algal reef formed in the third step, and naturally drying.
8. The method for constructing a biomimetic artificial algal reef according to claim 7, wherein: and adding a certain amount of bionic ecological building materials into the concrete raw materials in the third step, wherein the adding amount is 10-20% of the mass of the concrete.
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