CN104072029A - Efficient artificial algal reef using tidal flat mud as raw material and preparation method of efficient artificial algal reef - Google Patents
Efficient artificial algal reef using tidal flat mud as raw material and preparation method of efficient artificial algal reef Download PDFInfo
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- CN104072029A CN104072029A CN201410023630.0A CN201410023630A CN104072029A CN 104072029 A CN104072029 A CN 104072029A CN 201410023630 A CN201410023630 A CN 201410023630A CN 104072029 A CN104072029 A CN 104072029A
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- algal reef
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- 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
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- 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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- Cultivation Of Seaweed (AREA)
Abstract
The invention provides efficient artificial algal reef using tidal flat mud as a raw material and a preparation method of the efficient artificial algal reef. The efficient artificial algal reef is characterized in that the artificial algal reef is prepared by using the characteristic that the tidal flat mud is rich in nutrient salt components such as nitrogen, phosphorus and the like and referring to dissolution rules of nutrient salt substances under different mass proportions of mud and cement. The invention also provides a preparation method of the tidal flat mud raw material. By adopting the method, the mass of obtained mud can account for 15-30% of the total mass of the algal reef, the corresponding compressive strength is between 25Mpa and 30Mpa, and the total utilization rate of the tidal flat mud can reach more than 20%. According to the efficient artificial algal reef, the nutrient salt components such as nitrogen, phosphorus and the like can be continuously dissolved from the internal part of a reef body, attachment and fixation matrixes of algae and spores of the algae can be provided, and good nutritional environment for survival and growth of the algae and the spores of the algae also can be provided. The efficient artificial algal reef provided by the invention can be used for reducing the application amount of materials such as cement and the like and reducing the alkalinity of artificial algal reef concrete, also has an important significance in repairing natural landscapes of tidal flat areas, achieves the aims of energy conservation and emission reduction, and is beneficial for improving the compatibility between the artificial algal reef and the marine ecological environment.
Description
Technical field
The present invention relates to a kind of high-efficiency artificial algal reef that mudflat sludge is raw material and preparation method thereof of take.
Background technology
Increasingly the decline of fishing resources, the signature of International Fisheries agreement, fishery products demand day by day vigorous, coastal water fishery resource maintenance and carrying out of resuming work have been promoted, the carrying out of fisherman's transferring job, and take the facility fishery construction that artificial marine habitat is core, become gradually the important channel of alleviating this series of problems.
Artificial algal reef is a kind of as artificial marine habitat, is for improving marine algae breeding environment, breeding the underwater structures thing that protects fishery resourses and arrange.Its construction material is varied, and also each is variant for adhesion effect and propagation performance.At present, in the research of building about artificial algal reef, consider the factor of environmental protection both at home and abroad, the material with land waste as reefs, becomes trend gradually, and main material has flyash, shell, sulphur cured article etc.As disclosedly in Chinese invention patent application 200910076730.9,201010194520.2 take the method that metallurgical slag, granite ballast powder etc. make material as fish shelter.Yet these methods need to be to subsequent disposal such as these type of starting material grind again, technique is more complicated, and acquires a certain degree of difficulty on promoting.
There is vast shoreline in China, has the abundant mudflat sludge resource that contains a large number of nutrients.Except argillo arenaceous beach, can be used for the cultivation such as intertidal shellfish, also have a large amount of silting matter beach to be difficult to utilize.For a long time, it is to around natural landscape and the ecotope in marine site produce certain negative impact.In beach silting, be rich in a large amount of nutritive substances, if by the effective combination of breeding of the organism such as nitrogen wherein, phosphorus and artificial algae field, certainly will contribute to accelerate the structure process of artificial algae field.Yet the material that China prepares for artificial algal reef at present still be take concrete, piece stone etc. as main, the applied research to mudflat sludge in artificial algal reef preparation but rarely has and relates to.
Summary of the invention
The object of the invention is to make full use of the feature that is rich in the nutritive salt compositions such as nitrogen, phosphorus in mudflat sludge, original mudflat sludge is adopted to the successively method of screening, the mud that the nutritive substance of purifying out is abundant and be prefabricated into algal reef raw material is prepared artificial algal reef with reference to the stripping law of nutritive salt material under different mud and cement quality ratio simultaneously.
The present invention is a kind of, and to take high-efficiency artificial algal reef that mudflat sludge is raw material and preparation method thereof concrete steps as follows:
1, in beach area, gather the darker silting of color, first screen out the larger impurity such as stone wherein, shell, be then placed in dryer, according to the difference of its humidity, with 80 ~ 105 ℃, dry to water ratio 0.1 ~ 1%.Again the mud after drying is blended to powdered, and progressively with 2mm, 1.4mm, the screen cloth step sizing of 1.0mm aperture, obtains the thin mud powder of aperture <1mm;
2, the thin mud powder of gained in step 1 is put into beaker, add water and do not cross it more than 20% height, stir, standing to silt layering.After skim clear water layer, carefully the mud layer on upper strata is collected, and put into dryer, dry to water ratio 0.1 ~ 1% with 100 ℃, and then obtain mud raw material;
3, the mud raw material of gained in above-mentioned steps 2 and concrete material are mixed, build and obtain take the high-efficiency artificial algal reef that mudflat sludge is raw material after moulding and maintenance.Wherein the quality of mud can account for 15 ~ 30% of artificial algal reef total mass.
The present invention is a kind of take the advantage of the high-efficiency artificial algal reef that mudflat sludge is raw material and is:
(1) can be according to the present situation of target marine site Water phosphorus ratio, select suitable mud and the mass ratio of cement to prepare artificial algal reef, and the reefs inside nutritive salt composition such as stripping nitrogen, phosphorus constantly, can optimize, regulate the N/P ratio in the water body of marine site, for the existence of algae and spore thereof, growth provide good nutrient environment, also can be its provide adhere to, fixation matrix;
(2) compare with the artificial algal reef of conventional concrete material, the present invention be take in the high-efficiency artificial algal reef that mudflat sludge is raw material and can be reached more than 20% the overall utilization ratio of mudflat sludge, significant to the reparation of shoal area natural landscape;
(3) feature of the nutritive substance such as the leachable nitrogen of mudflat sludge after utilize purifying, phosphorus, is prepared into and take the high-efficiency artificial algal reef that mudflat sludge is raw material, has solved the wide unserviceable difficult problem of silting resource in beach area;
(4) in this artificial algal reef, mudflat sludge quality accounts for 15 ~ 30% of artificial algal reef total mass, and corresponding ultimate compression strength, between 25 ~ 30Mp, meets the requirement of strength of artificial algal reef substantially with it;
(5) owing to selecting mudflat sludge, be the raw materials of artificial algal reef, reduced the usage quantity of the materials such as cement, reduced the concrete basicity of artificial algal reef, when realizing energy-saving and emission-reduction, be conducive to improve the consistency of artificial algal reef and the marine eco-environment.
Accompanying drawing explanation
Fig. 1 is the artificial algal reef sample of the mass ratio of mud of the present invention and cement while being 0.5:1.
embodiment:
Below in conjunction with specific embodiment, further explain the present invention, but embodiment does not limit in any form to the present invention.
Embodiment 1
The propagation of artificial algae field, need to throw in a large amount of artificial algal reefs as the attaching substratum of algae and spore thereof, and good nutritive salt water body environment is conducive to algae and spore existence thereof, grows, accelerate the rate of propagation of artificial algae field, improve the primary productivity of marine ecosystem of throwing reef sea area.
Collect beach silting in marine site, twin islet gulf, In Shandong Weihai in January, 2013, the result of extraction experiment of nutritive salt in the high-efficiency artificial algal reef that to carry out take mudflat sludge be raw material.According to the ratio of mud and cement consumption, establish altogether four level: 0.3:1,0.5:1,0.7:1,0.9:1.According to the specification of 70.7mm * 70.7mm * 70.7mm, make respectively the reef segment of each mud consumption level, until it, fully dry after sclerosis, put into the beaker of 1000mL, inject the seawater of 700mL, sealing, standing.
From algal reef piece, put into after seawater, with reference to the methods involving in the standard > > of < < People's Republic of China (PRC) standard of marine survey GB/T 12763.4-2007, ammonium salt and the reactive phosphate content of take in seawater are example, start periodic measurement, to investigate the result of extraction of its nutritive salt, amount to 25 days.Result shows, under different mud contents levels, the ammonium salt in seawater, reactive phosphate content are linearity or logarithm ascendant trend, and this process has long feature of time length.
The level of 0.5:1 of take is example, and in reefs, the stripping law of ammonium salt is (NH
4 +-N)=2.8626ln (T)+1.0764(R2=0.7489), the rule of reactive phosphate is (PO
4 3--P)=0.0712T+1.1574(R2=0.6575), wherein T is number of days.By the reef segment of this level, after maintenance is processed, the ultimate compression strength of 3 days reaches 17.3Mpa, and within 28 days, ultimate compression strength reaches 30.1Mpa.
Embodiment result shows, high-efficiency artificial algal reef of the present invention is drawn materials conveniently, can be according to the practical situation trial-production reef segment of embodiment location mudflat sludge, the stripping law of ammonium salt, reactive phosphate in algal reef under analysis different levels, again according to the N/P ratio present situation in prebuild artificial algae field sea area, throw in the high-efficiency artificial algal reef of suitable mud content ratio with it, nutritive salt environment in the water body of sustainable improvement sea area, adhering to for algae spore provides, in fixation matrix, be more conducive to growth and the propagation of algae.
Claims (6)
1. take high-efficiency artificial algal reef that mudflat sludge is raw material and preparation method thereof for one kind, it is characterized in that, the mudflat sludge (1) of take is raw material, according to different mud and the mass ratio of cement (2), is mixed with other concrete materials (3); Described mudflat sludge (1) material accounts for 15 ~ 30% of artificial algal reef total mass.
2. the high-efficiency artificial algal reef as described in right 1, is characterized in that above-mentioned mudflat sludge (1) is darker for taking from shoal area color, is rich in the mud of the nutritive salt compositions such as nitrogen, phosphorus.
3. the high-efficiency artificial algal reef as described in right 1, the preparation method of mudflat sludge wherein (1) material is: step 1, first screen out the larger impurity such as stone in mud, shell, then be placed in dryer, with 80 ~ 105 ℃, dry to water ratio 0.1 ~ 1%; Again the mud after drying is blended to powdered, progressively with 2mm, 1.4mm, the screen cloth step sizing of 1.0mm aperture, obtains the thin mud powder of aperture <1mm; Step 2, the thin mud powder of gained in step 1 is put into beaker, add water and cross it more than 20% height, stir, standing to silt layering; After skim clear water layer, carefully upper strata mud layer is collected, and put into dryer, dry to water ratio 0.1 ~ 1% with 100 ℃, and then obtain mud raw material.
4. the high-efficiency artificial algal reef as described in right 1, is characterized in that above-mentioned mud and the mass ratio of cement (2) are in 1:1.
5. the high-efficiency artificial algal reef as described in right 1, is characterized in that above-mentioned mud and the mass ratio of cement (2) are to select according to the N/P ratio present situation in prebuild artificial algae field sea area.
6. the high-efficiency artificial algal reef as described in right 1, other concrete materials (3) wherein refer to the concrete materials such as sand, stone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410023630.0A CN104072029B (en) | 2014-01-20 | 2014-01-20 | A kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof |
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| CN201410023630.0A CN104072029B (en) | 2014-01-20 | 2014-01-20 | A kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503296A (en) * | 2018-03-21 | 2018-09-07 | 山东大学 | A kind of artificial algal reef and preparation method thereof for repairing Muddy Bottoms seabed |
| CN108516737A (en) * | 2018-03-21 | 2018-09-11 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| CN108617653A (en) * | 2018-05-07 | 2018-10-09 | 柯江波 | Cutting propagation sustained release bacteriostatic agent and preparation method based on mudflat sludge |
| CN108617563A (en) * | 2018-05-04 | 2018-10-09 | 国家海洋局第二海洋研究所 | A kind of biomimetic prosthetic algal reef and its building method |
| CN108719335A (en) * | 2018-05-07 | 2018-11-02 | 柯江波 | Sustained release bacteriostatic agent and preparation method for Vegetable culture medium processing |
| CN111606610A (en) * | 2020-06-03 | 2020-09-01 | 河海大学 | A kind of sludge solidification material utilizing waste oyster shells and application method thereof |
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| CN102972324A (en) * | 2012-12-28 | 2013-03-20 | 山东大学（威海） | Artificial algal reef and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108503296A (en) * | 2018-03-21 | 2018-09-07 | 山东大学 | A kind of artificial algal reef and preparation method thereof for repairing Muddy Bottoms seabed |
| CN108516737A (en) * | 2018-03-21 | 2018-09-11 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| CN108516737B (en) * | 2018-03-21 | 2019-09-03 | 山东大学 | Artificial fish reef capable of realizing resource utilization of seabed sediment silt and preparation method thereof |
| CN108617563A (en) * | 2018-05-04 | 2018-10-09 | 国家海洋局第二海洋研究所 | A kind of biomimetic prosthetic algal reef and its building method |
| CN108617563B (en) * | 2018-05-04 | 2020-06-05 | 国家海洋局第二海洋研究所 | Bionic artificial algal reef and construction method thereof |
| CN108617653A (en) * | 2018-05-07 | 2018-10-09 | 柯江波 | Cutting propagation sustained release bacteriostatic agent and preparation method based on mudflat sludge |
| CN108719335A (en) * | 2018-05-07 | 2018-11-02 | 柯江波 | Sustained release bacteriostatic agent and preparation method for Vegetable culture medium processing |
| CN111606610A (en) * | 2020-06-03 | 2020-09-01 | 河海大学 | A kind of sludge solidification material utilizing waste oyster shells and application method thereof |
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| CN104072029B (en) | 2015-09-09 |
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