CN107673480A - A kind of preparation method of cycle of sixty years shell substrate modifier - Google Patents
A kind of preparation method of cycle of sixty years shell substrate modifier Download PDFInfo
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- CN107673480A CN107673480A CN201710847271.4A CN201710847271A CN107673480A CN 107673480 A CN107673480 A CN 107673480A CN 201710847271 A CN201710847271 A CN 201710847271A CN 107673480 A CN107673480 A CN 107673480A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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Abstract
The present invention relates to a kind of preparation method of cycle of sixty years shell substrate modifier, belong to technical field of aquaculture.The main component of main material cycle of sixty years shell is calcium carbonate in the present invention, because itself has microcellular structure, it is set to have fabulous absorption property, contained crust mass-energy radiates negative oxygen ion in cycle of sixty years shell, in cultivating pool, negative oxygen ion can purify the pollutant decomposed in surrounding water, improve oxygen content of water, the special construction of cycle of sixty years shell makes it play the harmful organic substance impurity that can be precipitated in adsorbed water body simultaneously, so as to reach the purpose of absorption bottom organic barrier oxidation operation oxygen consumption；Contain bacillus in the attached bacterium diatomite of substrate modifier in the present invention, this is a kind of beneficial bacterium for suppressing the breeding of other harmful bacterias, and it can efficiently decompose impurity of the precipitation adsorption in cycle of sixty years shell micropore, release carbon dioxide, the micropore of blocking is dredged, extend cycle of sixty years shell substrate modifier adsorption cycle, have broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation method of cycle of sixty years shell substrate modifier, belong to technical field of aquaculture.
Background technology
In culture environment of aquatic products, influence of the bottom material of pond for breeding to cultivating system is very big.Pond bottom sediment have accumulated largely
Caused organic matter in breeding process（Residual bait, animal wastes, dead algae, zooplankter remains etc.）, make the bottom in pond
Portion's oxygen consumption is increasingly severe.Ecological balance cultural method is exactly that the material for promoting pond circulates, and makes energy to animal protein direction
Flowing, reduce hazardous material deposition.Use of the substrate modifier in terms of aquaculture in recent years is more and more, and some areas make
The half cost in input in addition to bait is accounted for the expense of substrate modifier.Modifying agent for bottom material of pond for breeding mainly has three kinds at present：
A kind of is the adsorptivity product based on zeolite powder, sodium humate, aluminium iron sulfate, adsorbent, is reached with adsorbing bottom organic matter
The temporarily element such as barrier organic matter oxygen consumption and the malicious polyacrylamide of release, but can not really decompose digestion of organic matter；It is for second
Biological substrate modifier based on the mushrooms such as bacillus subtilis, bafillus natto, photosynthetic bacteria, pass through point of biological bacteria
Solving action breaks bottom organic matter, it is not high that shortcoming is that bottom is in the survival rate such as anaerobic condition, the strong bacillus of capacity of decomposition,
And very likely accelerate the anoxic of pond bottom.The third is the substrate based on the oxygenation agents such as SODIUM PERCARBONATE, calper calcium peroxide
Modifying agent, shortcoming be can only respite bottom anaerobic condition, it is not strong to organic matter decomposition.The product of the present invention can reach
The effect of few, the long-acting improving pond substrate of oxygen consumption, and the wide cost of main raw material(s) is low, it is cost-effective.
Therefore, a kind of substrate modifier pair that can be played absorption organic matter simultaneously and be acted on thorough decomposing organic matter is invented
Technical field of aquaculture has positive meaning.
The content of the invention
Present invention mainly solves technical problem, for current substrate modifier can not play simultaneously absorption organic matter with it is thorough
A kind of the defects of bottom decomposing organic matter effect, there is provided preparation method of cycle of sixty years shell substrate modifier.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of cycle of sixty years shell substrate modifier, it is characterised in that specifically preparation process is：
（1）700~800g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after being ground in stone mill, sieving obtains spending carapace powder, by cycle of sixty years
Shell powder mixes with bentonite, obtains mixing major ingredient；
（2）300~400g diatomite is weighed, diatomite is put into beaker, 400~500mL is poured slowly into beaker along wall of cup
Sulfuric acid solution, immersion, filters off the diatomite after acidleach is obtained except filtrate, the diatomite after acidleach is washed with deionized,
The wet diatomite purified；
（3）The wet diatomite of purification is added into fermentation tank, the broken fish intestines fresh 20~30g of addition into fermentation tank, 200~
300mL glucose solutions, 30~40g peptones, fermentation, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking
Heat temperature raising in case, attached bacterium diatomite is obtained after drying；
（4）Count in parts by weight, 70~80 parts of deionized waters, 10~15 parts of DBSAs are added into three-necked flask
Sodium, 80~90 parts of mixing major ingredients, 40~50 parts of attached bacterium diatomite, start agitator, stirring, pre-dispersed material are obtained after stirring；
（5）Three-necked flask equipped with pre-dispersed material is placed in water-bath, heat temperature raising, stirred, while stirring, use constant pressure
Sulfuric acid solution is added dropwise into three-necked flask for dropping funel, then obtains reaction product after reacting；
（6）Reaction product is filtered, filtrate is removed and obtains filter cake, filter cake is washed with water, filter cake is put into preparation in granulator
Grain, by particle exposure in the sun, obtains cycle of sixty years shell substrate modifier.
Step（1）Described milling time is 2~3h, and it is 200 mesh that standard screen, which obtains specification, flower carapace powder and bentonitic matter
Amount is than being 2:1.
Step（2）The mass fraction of described sulfuric acid solution is 65%, and soak time is 30~45min, washing times 3
~5 times.
Step（3）The mass fraction of described glucose solution is 30%, and fermentation temperature condition is 50~70 DEG C, during fermentation
Between be 10~15 days, after heat temperature raising temperature be 70~75 DEG C, drying time is 3~5h.
Step（4）Described agitator speed is 200~300r/min, 50~60min of mixing time.
Step（5）Temperature is 70~80 DEG C after described heat temperature raising, and speed of agitator is 100~120r/min, and constant pressure is dripped
The drop rate of liquid funnel is 5~10mL/min, and the mass fraction of sulfuric acid is 50%, and mixing time is 15~20min, during reaction
Between be 30~40min.
Step（6）Described washing times 3~5 times, washing times are 3~5 times, and grain diameter is 1~3mm, during exposure
Between be 5~7 days.
The beneficial effects of the invention are as follows：
（1）The main component of main material cycle of sixty years shell is calcium carbonate in the present invention, because itself has microcellular structure, has it fabulous
Absorption property, contained crust mass-energy radiates negative oxygen ion in cycle of sixty years shell in addition, and in cultivating pool, negative oxygen ion can purify
The pollutant in surrounding water is decomposed, and improving gaseous environment improves oxygen content of water, while the special construction of cycle of sixty years shell makes
It plays the harmful organic substance impurity that can be precipitated in adsorbed water body, so as to reach absorption bottom organic barrier organic matter
Aoxidize the purpose of oxygen consumption；
（2）Contain bacillus in the attached bacterium diatomite of substrate modifier in the present invention, it is numerous that this is that one kind can suppress other harmful bacterias
The beneficial bacterium grown, and impurity of the precipitation adsorption in cycle of sixty years shell micropore can be efficiently decomposed, carbon dioxide is released, to blocking
Micropore is dredged, and extends cycle of sixty years shell substrate modifier adsorption cycle, and can reach the effect for thoroughly decomposing oxidation of organic compounds.
Embodiment：
700~800g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after grinding 2~3h in stone mill, 200 mesh sieves is crossed and obtains cycle of sixty years shell
Powder, it is 2 in mass ratio by flower carapace powder and bentonite:1 mixing, obtain mixing major ingredient；300~400g diatomite is weighed, by silicon
Diatomaceous earth is put into beaker, and 400~500mL mass fractions are poured slowly into beaker as 65% sulfuric acid solution along wall of cup, and immersion 30~
45min, the diatomite after acidleach is obtained except filtrate is filtered off, the diatomite after acidleach is washed with deionized 3~5 times, obtained
To the wet diatomite of purification；The wet diatomite of purification is added into fermentation tank, the fresh broken fishes of 20~30g are added into fermentation tank
Intestines, 200~300mL mass fractions are 30% glucose solution, 30~40g peptones, ferment 10~15 under the conditions of 50~70 DEG C
My god, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking oven and is heated to 70~75 DEG C, dry 3~5h
After obtain attached bacterium diatomite；Count in parts by weight, 70~80 parts of deionized waters, 10~15 parts of dodecanes are added into three-necked flask
Base benzene sulfonic acid sodium salt, 80~90 parts of mixing major ingredients, 40~50 parts of attached bacterium diatomite, start agitator, with 200~300r/min rotating speeds
Stirring, pre-dispersed material is obtained after stirring 50~60min；Three-necked flask equipped with pre-dispersed material is placed in water-bath, heating rises
Temperature is stirred to 70~80 DEG C with 100~120r/min, while stirring, with constant pressure funnel into three-necked flask with 5~
It is 50% 15~20min of sulfuric acid solution that mass fraction, which is added dropwise, in 10mL/min drop rate, then is obtained instead after reacting 30~40min
Answer product；
Reaction product is filtered, filtrate is removed and obtains filter cake, filter cake is washed with water 3~5 times, until the pH value of filter cake reach 4~
5, filter cake is put into the particle for preparing that particle diameter is 1~3mm in granulator, particle exposure 5~7 days in the sun are spent
Crust substrate modifier.
Example 1
800g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after grinding 3h in stone mill, 200 mesh sieves is crossed and obtains spending carapace powder, by cycle of sixty years shell
Powder is 2 in mass ratio with bentonite:1 mixing, obtain mixing major ingredient；400g diatomite is weighed, diatomite is put into beaker, along cup
Wall is poured slowly into the sulfuric acid solution that 500mL mass fractions are 65% into beaker, soaks 45min, filters off except filtrate obtains acidleach
Diatomite afterwards, the diatomite after acidleach is washed with deionized 5 times, the wet diatomite purified；By the wet silicon of purification
Diatomaceous earth adds fermentation tank, and the fresh broken fish intestines of 30g are added into fermentation tank, and 300mL mass fractions are 30% glucose solution,
40g peptones, fermented 15 days under the conditions of 70 DEG C, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking oven
75 DEG C are heated to, attached bacterium diatomite is obtained after drying 5h；Count in parts by weight, 80 parts of deionizations are added into three-necked flask
Water, 15 parts of neopelexes, 90 parts of mixing major ingredients, 50 parts of attached bacterium diatomite, is started agitator, is turned with 300r/min
Speed stirring, pre-dispersed material is obtained after stirring 60min；Three-necked flask equipped with pre-dispersed material is placed in water-bath, heat temperature raising
To 80 DEG C, stirred with 120r/min, stirring while, with constant pressure funnel into three-necked flask with 10mL/min dropwise addition
It is 50% sulfuric acid solution 20min that mass fraction, which is added dropwise, in speed, then obtains reaction product after reacting 40min；Reaction product is filtered,
Remove filtrate and obtain filter cake, filter cake is washed with water 5 times, until the pH value of filter cake reaches 5, filter cake is put into granulator and prepared
Particle diameter is 3mm particle, by particle exposure 7 days in the sun, obtains cycle of sixty years shell substrate modifier.
Example 2
700g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after grinding 2h in stone mill, 200 mesh sieves is crossed and obtains spending carapace powder, by cycle of sixty years
Shell powder is 2 in mass ratio with bentonite:1 mixing, obtain mixing major ingredient；300g diatomite is weighed, diatomite is put into beaker, edge
Wall of cup is poured slowly into the sulfuric acid solution that 400mL mass fractions are 65% into beaker, soaks 30min, filters off except filtrate obtains acid
Diatomite after leaching, the diatomite after acidleach is washed with deionized 3 times, the wet diatomite purified；By the wet of purification
Diatomite adds fermentation tank, and the fresh broken fish intestines of 20g are added into fermentation tank, and 200mL mass fractions are that 30% glucose is molten
Liquid, 30g peptones, fermented 10 days under the conditions of 50 DEG C, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking oven
In be heated to 70 DEG C, obtain attached bacterium diatomite after drying 3h；Count in parts by weight, into three-necked flask add 70 parts go from
Sub- water, 10 parts of neopelexes, 80 parts of mixing major ingredients, 40 parts of attached bacterium diatomite, is started agitator, is turned with 200r/min
Speed stirring, pre-dispersed material is obtained after stirring 50min；Three-necked flask equipped with pre-dispersed material is placed in water-bath, heat temperature raising
To 70 DEG C, stirred with 100r/min, stirring while, with constant pressure funnel into three-necked flask with 5mL/min dropwise addition
It is 50% sulfuric acid solution 15min that mass fraction, which is added dropwise, in speed, then obtains reaction product after reacting 30min；Reaction product is filtered,
Remove filtrate and obtain filter cake, filter cake is washed with water 3 times, until the pH value of filter cake reaches 4, filter cake is put into granulator and prepared
Particle diameter is 1mm particle, by particle exposure 5 days in the sun, obtains cycle of sixty years shell substrate modifier.
Example 3
750g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after grinding 2h in stone mill, 200 mesh sieves is crossed and obtains spending carapace powder, by cycle of sixty years
Shell powder is 2 in mass ratio with bentonite:1 mixing, obtain mixing major ingredient；350g diatomite is weighed, diatomite is put into beaker, edge
Wall of cup is poured slowly into the sulfuric acid solution that 450mL mass fractions are 65% into beaker, soaks 40min, filters off except filtrate obtains acid
Diatomite after leaching, the diatomite after acidleach is washed with deionized 4 times, the wet diatomite purified；By the wet of purification
Diatomite adds fermentation tank, and the fresh broken fish intestines of 25g are added into fermentation tank, and 250mL mass fractions are that 30% glucose is molten
Liquid, 35g peptones, fermented 13 days under the conditions of 60 DEG C, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking oven
In be heated to 73 DEG C, obtain attached bacterium diatomite after drying 4h；Count in parts by weight, into three-necked flask add 75 parts go from
Sub- water, 13 parts of neopelexes, 85 parts of mixing major ingredients, 45 parts of attached bacterium diatomite, is started agitator, is turned with 250r/min
Speed stirring, pre-dispersed material is obtained after stirring 55min；Three-necked flask equipped with pre-dispersed material is placed in water-bath, heat temperature raising
To 75 DEG C, stirred with 110r/min, stirring while, with constant pressure funnel into three-necked flask with 8mL/min dropwise addition
It is 50% sulfuric acid solution 18min that mass fraction, which is added dropwise, in speed, then obtains reaction product after reacting 35min；Reaction product is filtered,
Remove filtrate and obtain filter cake, filter cake is washed with water 4 times, until the pH value of filter cake reaches 5, filter cake is put into granulator and prepared
Particle diameter is 2mm particle, by particle exposure 6 days in the sun, obtains cycle of sixty years shell substrate modifier.
Comparative example：The substrate modifier of Jinan biotech company production.
Cycle of sixty years shell substrate modifier made from present example 1~3 and comparative example are subjected to cultivating pool drop-test, pressed
It is as shown in table 1 according to the indices of GB/T1299-91 standard detection bottom water samples, its testing result：
Detection method：Selecting 5 areas, wherein 1 is used as control pond, 3 are used as experiment in addition for 1.5 mu or so of pond
Pond, after cleaning up the pond, put the 1.1m depth of waters；Substrate modifier mixes fine earth mixing, and wetting is agglomerating, is invested in experiment pond.Substrate is launched to change
After good dose, at three days afterwards, every afternoon 15:00-17:00 sampling detection, take the average value of three day datas.
Table 1：
In summary, cycle of sixty years shell substrate modifier produced by the invention is relative to comparative example, bottom water sample gaseous environment have compared with
Big improvement；From the beneficial bacterium in bottom water sample content can be seen that cycle of sixty years shell substrate modifier of ammonia nitrogen and phosphorus to organic matter
Decomposition efficiency in terms of also greatly improve so that ammonia nitrogen and phosphorus content reduce many, cycle of sixty years shell substrate of the invention
Modifying agent service life is grown, and the main material cycle of sixty years shell cost that is easy to get is low, will have broad application prospects in aquaculture.
Claims (7)
1. a kind of preparation method of cycle of sixty years shell substrate modifier, it is characterised in that specifically preparation process is：
（1）700~800g cycle of sixty years shells are weighed, cycle of sixty years shell are put into after being ground in stone mill, sieving obtains spending carapace powder, by cycle of sixty years
Shell powder mixes with bentonite, obtains mixing major ingredient；
（2）300~400g diatomite is weighed, diatomite is put into beaker, 400~500mL is poured slowly into beaker along wall of cup
Sulfuric acid solution, immersion, filters off the diatomite after acidleach is obtained except filtrate, the diatomite after acidleach is washed with deionized,
The wet diatomite purified；
（3）The wet diatomite of purification is added into fermentation tank, the broken fish intestines fresh 20~30g of addition into fermentation tank, 200~
300mL glucose solutions, 30~40g peptones, fermentation, filter off except ferment filtrate obtains fermentation soil, fermentation soil is put into baking
Heat temperature raising in case, attached bacterium diatomite is obtained after drying；
（4）Count in parts by weight, 70~80 parts of deionized waters, 10~15 parts of DBSAs are added into three-necked flask
Sodium, 80~90 parts of mixing major ingredients, 40~50 parts of attached bacterium diatomite, start agitator, stirring, pre-dispersed material are obtained after stirring；
（5）Three-necked flask equipped with pre-dispersed material is placed in water-bath, heat temperature raising, stirred, while stirring, use constant pressure
Sulfuric acid solution is added dropwise into three-necked flask for dropping funel, then obtains reaction product after reacting；
（6）Reaction product is filtered, filtrate is removed and obtains filter cake, filter cake is washed with water, filter cake is put into preparation in granulator
Grain, by particle exposure in the sun, obtains cycle of sixty years shell substrate modifier.
A kind of 2. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（1）Institute
The milling time stated is 2~3h, and it is 200 mesh that standard screen, which obtains specification, and flower carapace powder is 2 with bentonitic mass ratio:1.
A kind of 3. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（2）Institute
The mass fraction for the sulfuric acid solution stated is 65%, and soak time is 30~45min, and washing times are 3~5 times.
A kind of 4. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（3）Institute
The mass fraction for the glucose solution stated is 30%, and fermentation temperature condition is 50~70 DEG C, and fermentation time is 10~15 days, heating
Temperature is 70~75 DEG C after heating, and drying time is 3~5h.
A kind of 5. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（4）Institute
The agitator speed stated is 200~300r/min, 50~60min of mixing time.
A kind of 6. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（5）Institute
Temperature is 70~80 DEG C after the heat temperature raising stated, and speed of agitator is 100~120r/min, and the drop rate of constant pressure funnel is
5~10mL/min, the mass fraction of sulfuric acid is 50%, and mixing time is 15~20min, and the reaction time is 30~40min.
A kind of 7. preparation method of cycle of sixty years shell substrate modifier according to claim 1, it is characterised in that：Step（6）It is described
Washing times 3~5 times, washing times are 3~5 times, and grain diameter be 1~3mm, and the exposure time is 5~7 days.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115708491A (en) * | 2022-11-16 | 2023-02-24 | 江苏海洋大学 | Culture substrate of buried shellfish and application thereof in buried shellfish culture |
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| CN1907885A (en) * | 2005-08-02 | 2007-02-07 | 马守祥 | Oyster case active filtering material for sewage treatment and preparation method thereof |
| CN106145241A (en) * | 2016-07-12 | 2016-11-23 | 山东胜伟园林科技有限公司 | The preparation technology of a kind of beach improver of water quality and application |
| CN106542651A (en) * | 2016-12-20 | 2017-03-29 | 大连赛姆生物工程技术有限公司 | A kind of microorganism water treatment agent in culturing water and preparation method thereof |
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- 2017-09-19 CN CN201710847271.4A patent/CN107673480A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1907885A (en) * | 2005-08-02 | 2007-02-07 | 马守祥 | Oyster case active filtering material for sewage treatment and preparation method thereof |
| CN106145241A (en) * | 2016-07-12 | 2016-11-23 | 山东胜伟园林科技有限公司 | The preparation technology of a kind of beach improver of water quality and application |
| CN106542651A (en) * | 2016-12-20 | 2017-03-29 | 大连赛姆生物工程技术有限公司 | A kind of microorganism water treatment agent in culturing water and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115708491A (en) * | 2022-11-16 | 2023-02-24 | 江苏海洋大学 | Culture substrate of buried shellfish and application thereof in buried shellfish culture |
| CN115708491B (en) * | 2022-11-16 | 2024-02-20 | 江苏海洋大学 | Culture substrate of buried shellfish and application of culture substrate in buried shellfish culture |
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Application publication date: 20180209 |