CN104072029B - A kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof - Google Patents
A kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof Download PDFInfo
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- CN104072029B CN104072029B CN201410023630.0A CN201410023630A CN104072029B CN 104072029 B CN104072029 B CN 104072029B CN 201410023630 A CN201410023630 A CN 201410023630A CN 104072029 B CN104072029 B CN 104072029B
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- algal reef
- mud
- mudflat sludge
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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)
- Artificial Fish Reefs (AREA)
Abstract
A kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof, it is characterized in that utilizing in mudflat sludge the feature being rich in the nutritive salt such as nitrogen, phosphorus composition, prepare artificial algal reef with reference to the stripping law of nutritive salt material under different mud and cement quality ratio.Present invention also offers the preparation method of mudflat sludge raw material, and the mud quality obtained in this way can account for 15 ~ 30% of algal reef total mass, ultimate compression strength corresponding with it, between 25 ~ 30Mp, can reach more than 20% to the overall utilization of mudflat sludge.The present invention is the constantly nutritive salt composition such as stripping nitrogen, phosphorus from reefs inside, while providing attachment, fixation matrix for algae and spore thereof, also for its existence, growth provide good nutrient environment.The present invention reduces the usage quantity of the materials such as cement, reduce the concrete basicity of artificial algal reef, also significant to the reparation of shoal area natural landscape, while realizing energy-saving and emission-reduction, be conducive to the consistency improving artificial algal reef and the marine eco-environment.
Description
Technical field
The present invention relates to a kind of take mudflat sludge as high-efficiency artificial algal reef of raw material and preparation method thereof.
Background technology
Increasingly the decline of fishing resources, the signature of International Fisheries agreement, fishery products demand day by day vigorous, facilitate coastal water fishery resource maintenance and carrying out of resuming work, the carrying out of transferring fishermen's job, and take artificial marine habitat as the industry fishery construction of core, become the important channel alleviating this series of problems gradually.
Artificial algal reef, as the one of artificial marine habitat, is for improving marine algae breeding environment, the underwater structures thing that propagation protects fishery resourses and arranges.Its construction material is varied, and adhesion effect is also each variant with propagation performance.At present, in the research both at home and abroad about artificial algal reef construction, consider the factor of environmental protection, with the material of land waste as reefs, become trend gradually, main material has flyash, shell, sulphur cured article etc.As disclosed in Chinese invention patent application 200910076730.9,201010194520.2 with the method for fish shelter making material such as metallurgical slag, granite ballast powder.But these methods need subsequent disposal such as these type of starting material grind again, and technique is more complicated, and acquire a certain degree of difficulty in popularization.
There is vast shoreline in China, has the abundant mudflat sludge resource containing a large number of nutrients.Can be used for except argillo arenaceous beach except 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 produces certain negative impact to the natural landscape of surrounding sea and ecotope.Be rich in a large amount of nutritive substances in flat sedimentation mud, if be effectively combined with the breeding of artificial algae field by the organism such as nitrogen wherein, phosphorus, the structure process accelerating artificial algae field certainly will be contributed to.But current China is used for the material prepared of artificial algal reef still based on concrete, block stone etc., but rarely has the applied research of mudflat sludge in artificial algal reef preparation and relate to.
Summary of the invention
The object of the invention is to make full use of in mudflat sludge the feature being rich in the nutritive salt such as nitrogen, phosphorus composition, original mudflat sludge is adopted to the method for successively screening, the mud that nutritive substance of purifying out is abundant and be prefabricated into algal reef raw material, prepares 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 is that the high-efficiency artificial algal reef of raw material and preparation method thereof concrete steps are as follows with mudflat sludge:
1, gather the darker silting of color in beach area, first screen out the larger impurity such as stone wherein, shell, be then placed in dryer, according to the difference of its humidity, dry to water ratio 0.1 ~ 1% with 80 ~ 105 DEG C.Again the mud after oven dry is blended powdered, and progressively with the screen cloth step sizing of 2mm, 1.4mm, 1.0mm aperture, obtain the thin mud powder of aperture <1mm;
2, thin for gained in step 1 mud powder is put into beaker, add water and do not cross more than its 20% height, stir, leave standstill 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 DEG C, and then obtain mud raw material;
3, by the mud raw material of gained in above-mentioned steps 2 and concrete material mixing, obtaining after building shaping and maintenance take mudflat sludge as the high-efficiency artificial algal reef of raw material.Wherein the quality of mud can account for 15 ~ 30% of artificial algal reef total mass.
The present invention is a kind of is that the advantage of the high-efficiency artificial algal reef of raw material is with mudflat sludge:
(1) can according to the present situation of target marine site Water phosphorus ratio, the mass ratio of suitable mud and cement is selected to prepare artificial algal reef, and the reefs inside constantly nutritive salt composition such as stripping nitrogen, phosphorus, can optimize, the N/P ratio regulated in the water body of marine site, for the existence of algae and spore thereof, growth provide good nutrient environment, also can be it and attachment, fixation matrix are provided;
(2) compared with the artificial algal reef of conventional concrete material, the present invention can reach more than 20% to the overall utilization of mudflat sludge in the high-efficiency artificial algal reef of raw material, significant to the reparation of shoal area natural landscape;
(3) utilize the feature of the nutritive substance such as the leachable nitrogen of mudflat sludge, phosphorus after purifying, being prepared into mudflat sludge is the high-efficiency artificial algal reef of raw material, solves the unserviceable difficult problem of silting resource that beach area is wide;
(4) in this artificial algal reef, mudflat sludge quality accounts for 15 ~ 30% of artificial algal reef total mass, and ultimate compression strength corresponding with it, between 25 ~ 30Mp, meets the requirement of strength of artificial algal reef substantially;
(5) owing to selecting mudflat sludge to be the raw materials of artificial algal reef, decrease the usage quantity of the materials such as cement, reduce the concrete basicity of artificial algal reef, while realizing energy-saving and emission-reduction, be conducive to the consistency improving artificial algal reef and the marine eco-environment.
Accompanying drawing explanation
The artificial algal reef sample that Fig. 1 is the mass ratio of mud of the present invention and cement when being 0.5:1.
embodiment:
Explain the present invention further below in conjunction with specific embodiment, 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 reef attaching substratum as 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.
In January, 2013 collects flat sedimentation mud in marine site, twin islet gulf, In Shandong Weihai, carries out the result of extraction experiment of the high-efficiency artificial algal reef Middle nutrition salt taking mudflat sludge as raw material.According to the ratio of mud and cement consumption, establish four levels altogether: 0.3:1,0.5:1,0.7:1,0.9:1.According to the specification of 70.7mm × 70.7mm × 70.7mm, make the reef segment of each mud consumption level respectively, after it fully dries sclerosis, put into the beaker of 1000mL, inject the seawater of 700mL, sealing, leave standstill.
After algal reef block puts into seawater, with reference to the methods involving in " People's Republic of China's standard " standard of marine survey GB/T 12763.4-2007, for the ammonium salt in seawater and reactive phosphate content, start periodic measurement, to investigate the result of extraction of its nutritive salt, amount to 25 days.Result shows, under different mud contents level, the ammonium salt in seawater, reactive phosphate content linearly or logarithm ascendant trend, and the feature that this process has the time length long.
For the level of 0.5:1, 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 process, 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 according to the practical situation trial-production reef segment of embodiment location mudflat sludge, analyze the stripping law of ammonium salt, reactive phosphate in algal reef under 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, while providing attachment, fixation matrix for algae spores, be more conducive to growth and the propagation of algae.
Claims (1)
1. being a high-efficiency artificial algal reef for raw material with mudflat sludge, it is characterized in that, is that raw material and concrete material are mixed with mudflat sludge, described mudflat sludge material accounts for 15 ~ 30% of artificial algal reef total mass, the preparation method of mudflat sludge material is wherein: step one, first the stone in mud is screened out, the larger impurity such as shell, then be placed in dryer, dry to water ratio 0.1 ~ 1% with 80 ~ 105 DEG C, again the mud after oven dry is blended powdered, progressively with 2mm, 1.4mm, the screen cloth step sizing of 1.0mm aperture, obtain the thin mud powder of aperture <1mm, step 2, thin for gained in step one mud powder is put into beaker, add water and do not cross more than its 20% height, stir, leave standstill 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 DEG C, and then obtain mud raw material.
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108516737B (en) * | 2018-03-21 | 2019-09-03 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| 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 |
| 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 |
| CN111606610B (en) * | 2020-06-03 | 2021-07-09 | 河海大学 | Sludge curing material using 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 |
| CN103467048A (en) * | 2013-09-16 | 2013-12-25 | 福州大学 | Artificial fish reef concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0759171B2 (en) * | 1985-02-14 | 1995-06-28 | 千代田化工建設株式会社 | Manufacture method of artificial fishing reef |
| US20020009622A1 (en) * | 1999-08-03 | 2002-01-24 | Goodson David M. | Sprayable phosphate cementitious coatings and a method and apparatus for the production thereof |
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Patent Citations (6)
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|---|---|---|---|---|
| CN1621167A (en) * | 2003-11-24 | 2005-06-01 | 廖达成 | Curing process of dimension stone waste |
| KR100798893B1 (en) * | 2007-06-13 | 2008-01-29 | 권평곤 | Manufacturing method concrete products using sludge |
| CN101439939A (en) * | 2008-12-24 | 2009-05-27 | 北京科技大学 | Low alkalinity gel material for preparing concrete artificial reef and preparation 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 |
| CN103467048A (en) * | 2013-09-16 | 2013-12-25 | 福州大学 | Artificial fish reef concrete and preparation method thereof |
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