CN100418410C - Use of rare-earth additive as cultivating water nutrient material, aquatic product water nutrient material and its producing method - Google Patents
Use of rare-earth additive as cultivating water nutrient material, aquatic product water nutrient material and its producing method Download PDFInfo
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- CN100418410C CN100418410C CNB2005100203331A CN200510020333A CN100418410C CN 100418410 C CN100418410 C CN 100418410C CN B2005100203331 A CNB2005100203331 A CN B2005100203331A CN 200510020333 A CN200510020333 A CN 200510020333A CN 100418410 C CN100418410 C CN 100418410C
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- rare earth
- nutrient material
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- containing compound
- water nutrient
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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
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The present invention applies a rare earth additive as nutrient material of cultivation water bodies. The nutrient material of aquaculture water bodies is prepared by the following raw material of weight portion: 0.02 to 0.10 of rare earth additives, 5 to 10 of organic matters, 16 to 20 of nitrogen, 4 to 7 of phosphorus, 2 to 4 of potassium, and 3 of 5 of compounds containing middle microelements. The rare earth additives comprise the following components of weight portion: 65 to 90 of La2 O3, 1.9 to 3.5 of Pr6 O11, 6 to 15 of CeO2, 3.4 to 4.0 of Nd2 O3, 0.5 to 1.5 of oxide containing other rare earth elements, and at least one of molybdenum, iron, boron, zinc, magnesium, silicon and calcium of middle microelements.
Description
Technical field:
The present invention is relevant with cultivating water nutrient material and preparation method thereof.
Background technology:
For a long time, the breeding fish of the China and the world, to support shrimp, support culture fisheries such as crab be to satisfy fish, shrimps, crab class to grow to the needs of nutriment, takes the rich water method promptly to use the livestock and poultry manure and chemical fertilizer is cultivated plankton more.But, because long-term and excessive applications of farmyard manure and chemical fertilizer, causing water pollution, bacterium breeds in a large number, and sick worm harm such as fish is serious, also causes anoxic etc., causes that output of aquatic products is low, poor quality, benefit be low.Chinese patent discloses a kind of preparation method of rare earth addition for No. 981240283 and has produced the method for rare-earth phosphate fertilizer with it.
The content of invention:
The purpose of this invention is to provide and a kind ofly breeding water body is not polluted, alleviates aquatic products disease, nutrient utilization efficient height, aquatic product water nutrient material that output of aquatic products increases and preparation method thereof.
The present invention is achieved in that
Rare earth addition of the present invention is as the application of cultivating water nutrient material.
Raw material by following weight parts is made:
Rare earth addition 0.02-0.10
Organic 5-10
Nitrogen 16-20
Phosphorus 4-7
Potassium 2-4
Rare earth addition comprises following components by part by weight:
La
2O
3 65-90
Pr
6O
11 1.9-3.5
CeO
2 6-15
Nd
2O
3 3.4-4.0
Contain other rare earth oxide 0.5-1.5
Contain at least a compound 3-5 in trace element molybdenum, iron, boron, zinc, magnesium, silicon, the calcium;
Rare earth addition is made up of following components by part by weight:
Rare earth addition 20-35
Modifier 15-25
Conditioner 20-30
Filler 15-20.
To be Sichuan Mianning Rare Earth Mine invade, alkali commentaries on classics, the removal of impurity, remove kitchen range, excellent molten, liquid or solid powder that condensing crystallizing is made through high-temperature roasting, acid rare earth addition, adds modifier, conditioner and filler when condensing crystallizing or after taking out crystal.
Modifier is magnesia, and conditioner is an ammonium sulfate, and filler is talcum powder or bentonite.
Organic matter is domestic animal, poultry manure, through fermentation and high temperature treatment.Used nitrogen-containing compound is NH
3, phosphorus-containing compound is P
2O
5, potassium-containing compound is K
2O, the trace elementization thing is ferrous sulfate, zinc oxide, calcium carbonate in containing, boric acid, slaked lime.
The fuel its preparation method is as follows:
1, the light rare earth ore deposit is selected through beneficiating method, through high-temperature roasting, acidleach get, alkali transforms, removal of impurity thorium, excellent molten technical process, trace compound in excellent molten process adds, add modifier, conditioner, filler when cracking at condensing crystallizing or to crystal, manufactured goods are that solid, powdery thing or liquid rare earth additive are standby, it is the A material
2, ight soil such as pig, ox, chicken, duck, goose, with actinomycetes, saccharomycete, high temperature bacterium to its ferment, deodorizing, killing ova and bacterium, process temperature is controlled between 60-70 ℃, get through harmless treatment in 5-7 days organic, i.e. B material,
3, the B material is dried by about 60-80 ℃ temperature, and carry out the cracker of 50-80 mesh sieve again and pulverize stand-by one-tenth C material,
4, C material adds the A material, allocates the compound of element such as nitrogenous phosphorus potassium again into, gets product by technologies such as stirring, pulverizing.
The preparation method of rare earth element additive is as follows:
(1) the rare earth addition content of selecting for use is reached light rare earth concentrate more than 60% through 580-620 ℃ high-temperature roasting;
(2) roasted ore is dropped in the reactor that filtering and impurity removing gets filtrate A behind vitriol lixiviation;
(3) filtrate A is pumped into heating and adding glauber salt in another reactor, get precipitated filter cakes B after filtering;
(4) will add sodium hydroxide and heating again in the filter cake B adding reactor, stir, get after filtration filter cake C;
(5) with filter cake C through washing, equal at 7 o'clock at pH value, it is molten to add hydrochloric acid acid, removal of impurities, remove behind the thorium rare earth chloride solution, remove thorium for to remove radioactive substance thorium element with filter type;
(6) the rare earth chloride element is pumped in another reactor through alkali commentaries on classics once more, washing, filter, filter cake is added reactor, adding concentration in 1: 2.4 ratio is that 63% nitric acid is excellent molten, add trace element, be heated to 90-100 ℃, PH transfers to 5-6, rare earth element is transferred in the ratio range, stirred 40-60 minute, and got nitric acid rare earth liquid, pump into concentrated and adding modifier in the reactor, after crystallization or crystallization, add conditioner, filler, promptly become solid, powdery and get rare earth addition, except that containing the rational light rare earth of partition, also contain nitrogen and trace copper in the rare earth addition by liquid, iron, boron, zinc, magnesium, silicon, calcium constituent.
The invention provides the purposes and the cultivating water nutrient material that contain rare earth addition of rare earth addition as cultivating water nutrient material.
Aquatic product water nutrient material of the present invention is with the feces of livestock and poultry harmless treatment and reach in the NY525 standard regulation to Escherichia coli, worm's ovum death, allocate into aquatic animal grow necessary have efficiently nitrogen phosphorus potassium and in trace element, allocate rare earth addition again into, can effectively alleviate water pollution, alleviate the sick worm harm of aquaculture process, promote the plankton growth and breeding, for fish, shrimp, crab provide nutritious multiple aquatic bait.Product of the present invention promptly is not the fertilizer of simple meaning, neither feed, and be to utilize bacteria agent that the organic matter that agricultural produces is handled, generate active high, effective water body special nutritional material after adding rare earth.
Advantage of the present invention and action effect are as follows
1, the solid, powdery water nutrient material that contains LREE, nitrogen phosphorus potassium, organic matter and various trace elements of the present invention, not only can not cause secondary pollution to water body, and can play fast purification water quality, the multiple harmful effect of being critically ill of pollution abatement control fish shrimp crab, identify that by the poison level this product is actual nontoxic, harmless product.
2, aquatic product water nutrient material of the present invention is through experimental study, can make aquaculture shorten 5-7 days cycle of activity, and nutrient utilization efficient such as feed improve more than 30%, have good production application value.
3, aquatic product water nutrient material of the present invention is owing to include rare earth element, organic matter, can make planktonic amount of growth improve more than 20%, make the fish volume increase more than 15%, make the shrimp volume increase more than 10%, simultaneously, can reduce the fish survival dose more than 2/3rds, improve the fry more than 10%, the survival rate of adult fish, overall economic efficiency is very considerable.
4, the particular point of aquatic product water nutrient material of the present invention is: the scientific and reasonable rare earth element of active height and partition can activate the activity of plurality of enzymes in water body, plant corpus, the animal body, and then strengthened the photosynthetic usefulness of water body plant, photosynthetic adding, force it that nutrient and trace elements absorbed, conversion, utilization are strengthened comprehensively, photosynthetic, breathing, metabolic process are vigorous, make the formation of aquatile chain, promptly help the growth of phytoplankton.
Embodiment:
Nutrition of the present invention is that organic matter is added rare earth addition, nitrogen, phosphorus, potassic fertilizer after fermentation, high-temperature sterilization treatment, pulverizing, promptly gets product through stirring, pulverizing again.
The prescription of fuel of the present invention is as follows:
The prescription of rare earth addition is as follows:
The influence that the present invention is long to sashimi (raw fish)
Shi Wenlei etc. studies show that, carry out the comparative trial of twice various dose (concentration) at indoor aquarium, the result adds 45mg/kg in feed the rare earth addition effect of breeding fish is best, experimental group fish body weight gains rate improves 45.3% than control group, and fish body weight gains rates of other each groups are also all than control group increase (seeing attached list 1).Feed efficiency, feed coefficient and feed protein availability have been compared, the result shows, the comparison of experimental group fresh fish is according to volume increase 3.49kg, total feed coefficient reduces by 14.85% than control group, feed efficiency is 33.05%, the feed protein availability reaches 30.02%, improves 5.23% and 5.12%9 (seeing attached list 2) than control group respectively.
The test of in outdoor production pond different fingerlings being carried out shows, add rare earth addition in the fish meal, can increase per mu yield fresh fish amount 17.38%---18.37%, the fish survival rate improves 5.44%---and 5.9%, feed coefficient descends 3.2%---15.53% (seeing attached list 3).
The present invention prevents and treats the application of fish common disease
Grass carp is the representational main breed variety of China's fresh-water fish-culture, but the grass carp premunition is weak, disease is many, survival rate is low.Studies show that rare earth addition has certain preventive and therapeutic effect to fish disease, particularly the bacillary red skin of grass carp, enteritis, gill rot " three serious diseases " are had the better prevention effect.Employing through cultivate, three kinds of bacterial suspensions alive after the washing are to being tried the grass carp kind and done chest respectively or lumbar injection being infected, 24h injects 4 μ g/g rare earth addition solution again, control group is injected distilled water or is not contained the complexing agent solution of rare earth addition, observe 10-12d, the result shows the average cure rate to three kinds of diseases, the rare earth addition group is 75.7%, and control group is 50.8%.This result in 22 test sites of Hunan different quality environment totally 228 mu of waters surface carried out large-scale demonstration, agricultural rare-earth element service time of preventing and treating fish disease is in annual 6-8 month fish disease multiple season, every month once, and the rare earth addition consumption is to deposit 0.1% of pool grass, bream body weight.Application process can be mixed the bonding green grass of bait with agricultural rare-earth unit and be thrown something and fed, and also can be made into particle bait and throw something and feed, once a day, logotype 3-5d.Agricultural rare-earth composition motility rate is 83-87.7% as a result, improves 6.6-11.3% than rare earth group, improves 12-16.7% than control group.Statistical test all reaches utmost point significance level.According to user's reflection, use rare earth pharmaceutical chemistry treatment grass carp disease respond well, the dead fish of general medication 3d reduces, and 5d stops dead fish substantially, is limited to 35-50d stationary phase.Dull and stereotyped paster bacteriostatic test and test tube bacteriostatic test show that rare earth can suppress growth and the breeding of grass carp " three serious diseases " bacterium, and the size of bacteriostasis is directly proportional with rare earth concentration.In effective rare earth concentration scope, bacterium loses mobility and procreation ability, and in vitro culture fluid is transparent clear, no bacterial growth.Observe under light microscopic, three kinds of pathogenic bacteria all have very strong drug sensitive reaction to 4 μ g/g agricultural rare-earth element mixture.Behind bacterium contact mixture, the gathering of promptly stopping action in the 3-5s is agglomerating, just has a small amount of bacterium slowly movable behind the 2h.Test tube doubling dilution bacteriostatic test shows that bacterium is cultivated after the rare earth addition of 4-8 μ g/g is handled, the growth and breeding to three kinds of bacteriums in the 48h all has stronger inhibitory action.Rare earth can weaken the pathogenic virulence of bacterium.The grass carp that health is anosis carries out three kinds of pathogenic bacteria that chest (abdomen) injection rare earth addition was handled, and its pathogenic virulence obviously weakens, and disease time is postponed 20-24h, and absolute lethality reduces by 16.7%.Because rare earth has the effect of the bacterial reproduction of inhibition, pathogenic bacteria are reduced, and its metabolite such as ectotoxic discharge capacity reduce relatively, therefore can weaken the intoxicating effect of pathogenic bacteria, grass carp is not fallen ill or slightly morbidity and unlikely causing death, thereby improve grass carp survival rate (seeing attached list 4).
3, the present invention is to planktonic influence in the fishpond
Xu Dianqiu etc. have studied pond middle rare earth additive to the planktonic influence of algae, and the result shows, fishpond water body middle rare earth additive has the effect (seeing attached list 5) that promotes the plankton growth and breeding.
Two, the present invention is to the influence of flesh quality
According to the random sampling of test site, different regions being carried out fish body biology scalability shape measurement data relatively, average body length of rare earth addition experimental group fish, body weight, ghost than, body fat than etc. parameter all good than control group, the raising of fish body grossness commodity value.Biochemical studies to the flesh of fish shows that protein and fat content slightly increase in the flesh of fish of rare earth addition element experimental group, and moisture descends, and flesh quality improves (seeing attached list 6).
Three, the residual quantity of rare earth addition of the present invention in fresh fish
Result of study shows, except that bream meat have trace rare-earth residual, there is no residual in the muscle of other fingerlings, there is denier residual in the internal organs, but the ree content of eating far away from people's daily life food is as being to be (seeing attached list 7) such as 0.36 μ g/g in 0.63 μ g/g, the paddy rice in the corn.
Subordinate list 1 rare earth addition is to the influence of grass carp growth
1.
1. raise 63d.
Subordinate list 2 rare earth additions produce the influence of index to sashimi (raw fish)
Annotate: 1, grass carp, carp body protein content calculate by 16%.
2, material protein utilization=fish body protein gain in weight/consumption forage protein weight * 100%.
3, material efficient is pressed the heavy and concentrated feed expendable weight ratio of concentrated feed growth fish.
Subordinate list 3 rare earth additions are to the influence of different fingerling growths
Subordinate list 4 rare earth additions are to the influence of grass carp diseases prevention effect
1. extremely remarkable
Subordinate list 5 is executed the number change that the main group of rare earth addition of the present invention front and back plankton plants
Subordinate list 6 rare earth additions are to the influence of fresh fish quality
Subordinate list 7 rare earth additions are to the influence (μ g/g) of residual quantity in the fish body
Claims (5)
1. aquatic product water nutrient material is characterized in that being made by the raw material of following weight parts:
Rare earth addition 0.02-0.10
Organic 5-10
Nitrogen 16-20
Phosphorus 4-7
Potassium 2-4
Rare earth addition comprises following components by part by weight:
La
2O
3 65-90
Pr
6O
11 1.9-3.5
CeO
2 6-15
Nd
2O
3 3.4-4.0
Contain other rare earth oxide 0.5-1.5
Contain at least a compound in trace element molybdenum, iron, boron, zinc, magnesium, silicon, the calcium: 3--5.
2. fuel according to claim 1 is characterized in that rare earth addition is made up of following components by part by weight:
Rare earth oxide 20-35
Modifier 15-25
Conditioner 20-30
Filler 15-20.
3. fuel according to claim 2 is characterized in that modifier is magnesia, and conditioner is an ammonium sulfate, and filler is talcum powder or bentonite.
4. fuel according to claim 1 is characterized in that organic be domestic animal, poultry manure, and through sending out high temperature treatment pure and mild, used nitrogen-containing compound is NH
3, phosphorus-containing compound is P
2O
5, potassium-containing compound is K
2O, the trace elementization thing is ferrous sulfate, zinc oxide, calcium carbonate in containing, boric acid, slaked lime.
5. the manufacture method of aquatic product water nutrient material according to claim 3 is characterized in that organic be domestic animal, poultry manure, and nitrogen-containing compound is NH
3, phosphorus-containing compound is P
2O
5, potassium-containing compound is K
2O, trace compound is ferrous sulfate, zinc oxide, calcium carbonate in containing, boric acid, slaked lime, its step is as follows:
(1) the light rare earth ore deposit is selected through beneficiating method, through high-temperature roasting, acidleach get, alkali transforms, removal of impurity thorium, excellent molten technical process, contain middle trace compound in excellent molten process adding, add modifier, conditioner, filler when cracking at condensing crystallizing or to crystal, manufactured goods are that solid, powdery thing or liquid rare earth additive are standby, it is the A material
(2) pig, ox, chicken, duck, goose ight soil, with actinomycetes, saccharomycete, high temperature bacterium to its ferment, deodorizing, killing ova and bacterium, process temperature is controlled between 60-70 ℃, get through harmless treatment in 5-7 days organic, i.e. B material,
(3) the B material is dried by about 60-80 ℃ temperature, and carry out the cracker of 50-80 mesh sieve again and pulverize stand-by one-tenth C material,
(4) the C material adds the A material, allocates the compound that contains n-p-k element again into, gets product by stirring, disintegrating process.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100203331A CN100418410C (en) | 2005-02-05 | 2005-02-05 | Use of rare-earth additive as cultivating water nutrient material, aquatic product water nutrient material and its producing method |
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| CNB2005100203331A CN100418410C (en) | 2005-02-05 | 2005-02-05 | Use of rare-earth additive as cultivating water nutrient material, aquatic product water nutrient material and its producing method |
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| CN1647621A CN1647621A (en) | 2005-08-03 |
| CN100418410C true CN100418410C (en) | 2008-09-17 |
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| CNB2005100203331A Expired - Fee Related CN100418410C (en) | 2005-02-05 | 2005-02-05 | Use of rare-earth additive as cultivating water nutrient material, aquatic product water nutrient material and its producing method |
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| CN112811607A (en) * | 2021-03-12 | 2021-05-18 | 四川瑞泽科技有限责任公司 | Method for constructing lake and reservoir water ecosystem |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058514A (en) * | 1991-08-08 | 1992-02-12 | 南京市水产科学研究所 | Compound fertilizer for fishery and manufacturing process thereof |
| CN1081832A (en) * | 1992-08-13 | 1994-02-16 | 内蒙古自治区水产科学研究所 | Add the method for rare earth in the carp feed |
| CN1152994A (en) * | 1995-12-28 | 1997-07-02 | 华中农业大学 | High-efficiency fertilizer for fish feed and producing process thereof |
| CN1223965A (en) * | 1998-12-28 | 1999-07-28 | 王德林 | Rare-earth additive, its preparing method and method for preparing rare-earth phosphate fertilizer using same |
-
2005
- 2005-02-05 CN CNB2005100203331A patent/CN100418410C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058514A (en) * | 1991-08-08 | 1992-02-12 | 南京市水产科学研究所 | Compound fertilizer for fishery and manufacturing process thereof |
| CN1081832A (en) * | 1992-08-13 | 1994-02-16 | 内蒙古自治区水产科学研究所 | Add the method for rare earth in the carp feed |
| CN1152994A (en) * | 1995-12-28 | 1997-07-02 | 华中农业大学 | High-efficiency fertilizer for fish feed and producing process thereof |
| CN1223965A (en) * | 1998-12-28 | 1999-07-28 | 王德林 | Rare-earth additive, its preparing method and method for preparing rare-earth phosphate fertilizer using same |
Non-Patent Citations (6)
| Title |
|---|
| 新型农用稀土添加剂通过省级鉴定. 王德林.化肥工业，第26卷第6期. 1999 |
| 新型农用稀土添加剂通过省级鉴定. 王德林.化肥工业，第26卷第6期. 1999 * |
| 新型稀土碳铵复混肥的制备及应用. 黄朋勉.磷肥与复肥，第16卷第3期. 2001 |
| 新型稀土碳铵复混肥的制备及应用. 黄朋勉.磷肥与复肥，第16卷第3期. 2001 * |
| 稀土在水产养殖中的应用. 刘海涛.现代渔业信息，第7卷第6期. 1992 |
| 稀土在水产养殖中的应用. 刘海涛.现代渔业信息，第7卷第6期. 1992 * |
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