A kind of microbial water-purifying agent for loach breeding water and preparation method thereof
Technical field
The present invention relates to a kind of microbial water-purifying agent and preparation method thereof, particularly relate to a kind of microbial water-purifying agent for loach breeding water and preparation method thereof.
Background technology
In recent years; the quick propelling of high-efficiency agriculture; special aquaculture industry is developed swift and violent; the new, special products of famous brands, of extra fine quality aquaculture kinds such as river crab, freshwater shrimp, Procambius clarkii, Macrobrachium rosenbergii, Penaeus vannamei, Trionyx sinensis (Wiegmann), mandarin fish, perch, river Puffer, swamp eel, loach have reached the level of large-scale production, define the feature of self.
Loach is called as " ginseng in water ", all has the distribution north uncommon but the various places that also distribute in southern china various places.The whole year all can gather, and summer is maximum, and be a kind of fish that nutritive value is very high, it is not identical with other fish, no matter appearance, and the bodily form, life habit is all different, is a kind of special bullhead.Loach likes the bottom inhabiting hydrostatic, often haunts the mud top layer being rich in canebreak bottom lake, pond, irrigation canals and ditches and paddy field, strong to environment-adapting ability.Life water temperature 10-30 DEG C, optimum water temperature is 25-27 DEG C.When water temperature in winter drops to below 5 DEG C, namely pierce 20-30cm in mud and survive the winter depths.Loach is many out preys on planktonic organism, aquatic insect, crustacean, Aquatic Higher Plants chip and algae etc. at night, sometimes also absorbs water-bed humus or body refuse.Namely loach 2 reaches maturity age in winter, starts annual April to breed (water temperature 18 DEG C), lays eggs in the shallow water thick grass of water depth deficiency 30 centimetres, and the ovum grain of output sticks to pasture and water or above the drought grass that do not had by water logging.The prelarva hatched, often disperses life, does not form colony.
Propagate loach artificially, the food species of throwing something and feeding has fly maggot, fish meal, Swine blood meal, dried silkworm chrysalis meal, rice bran, wheat bran, dish cake etc.Because the density of cultivation is considerably beyond natural level, water body cannot process the movement of unnecessary bait and loach, causes water body contaminated, and dissolved oxygen declines, and ammonia nitrogen index raises, and has a negative impact to the growth of loach.In current cultural technique, because enforcement process cannot be carried out to aquaculture water, easily cause the rising of loach sickness rate, survival rate reduction, the problems such as production declining.Conventional settling mode is that certain interval of time carries out changing water treatment, but changing water improves production cost on the one hand, and what also easily cause loach on the other hand is not suitable with symptom.
Summary of the invention
Herein for above shortcomings in existing cultural technique, one of technical problem to be solved by this invention is to provide a kind of preparation method of microbial water-purifying agent of loach breeding water.
Two of technical problem to be solved by this invention is to provide a kind of microbial water-purifying agent of loach breeding water, adopts aforesaid method to be prepared from.
Technical problem to be solved by this invention, is achieved by the following technical solution:
For a preparation method for the microbial water-purifying agent of loach breeding water, be made up of following step:
(1) magnetic silicon ball of 30-50 weight part finishing alkyl chain is joined in the water of 300-500 weight part;
(2) under 2-10 revolutions per second of agitation condition, add 100-150 weight part microorganism reagent, described microorganism reagent is made up of following weight parts component: Rhodopseudomonas palustris (Rhodop seudanonas palustris) 60-80 part, Synechococcus (Synechococcus) 60-80 part, nitrated coccus (Nitrococcus) 10-30 part, Nitrobacter winogradskyi (Nitrobacterwinogradskyi) 20-40 part, Pseudomonas aeruginosa (P.Aeruginosa) 20-30 part, Paracoccus denitrificans (Paracoccusdenitrificans) 10-20 part, Beggiatoa (Beggiatoia) 3-5 part, thiobacillus (Thiobacillus) 3-5 part, ciliate (Ciliate) 30-60 part, plantlike flagellate (Phrtomastingina) 30-60 part, Dunaliella salina (Dunal iel la) 30-50 part, chlorella (Chlorella) 30-50 part,
(3) cultivate 20-30 hour under adding 60-100 weight part beef extract-peptone nutrient agar normal temperature again, the microbial water-purifying agent for loach breeding water of the present invention can be obtained.
Preferably,
In step (1), the magnetic silicon ball of described finishing alkyl chain is the magnetic silicon ball of surface finish C 8 alkyl chain and/or the magnetic silicon ball of finishing C18 alkyl chain.
The magnetic silicon ball of surface finish C 8 alkyl chain, specifically can adopt the method disclosed in Chinese invention patent CN101185874A embodiment 1 to be prepared.
Further, the magnetic silicon ball of described finishing alkyl chain is the magnetic silicon ball of surface finish C 8 and C18 alkyl chain, adopts following method to be prepared from:
(1-1) water heat transfer Fe is used
3o
4magnetic nano-particle: by 1 gram of FeCl
36H
2o, is dissolved in 30ml ethylene glycol, and add 4 grams of anhydrous sodium acetates, temperature of reaction is 200 DEG C, and the reaction times is 12 hours, generates Fe
3o
4magnetic nano-particle;
(1-2) by above-mentioned Fe
3o
4magnetic nano-particle washes with water, and removing water-soluble impurity, is then dispersed in 10g water, obtain dispersion liquid A, get centrifuge tube, add the above-mentioned dispersion liquid A of 3 g, add the ultrasonic 8min of 5ml 2M HCl solution, be separated the green clear liquid of removing with magnet again, then use 10ml water-dispersion, then collect particle with magnet, remove light green clear liquid, with the citric acid three sodium solution ultrasonic disperse of 5 ml 10wt%, leave standstill 2h, again obtain dispersion liquid B with after 5 ml water-dispersions;
(1-3) get above-mentioned dispersion liquid B 1g, after 5ml water and 30ml alcohol dilution, then add 20wt% ammoniacal liquor 0.5ml, ultrasonic disperse 10 minutes, stir, add 1ml tetraethoxy, stirring at room temperature 12 hours, collect with magnet, washing, dry, obtain complex microsphere;
(1-4) above-mentioned for 0.01g complex microsphere is joined in 1.0g anhydrous pyridine, ultrasonic disperse, and then add coating materials, described coating materials is the mixture of 0.1g dimethyl-octa base silane and 0.2g octadecyltriethoxy silane composition, stirring at room temperature 12 hours, with ethanol and water washing, then vacuum-drying, the magnetic silicon ball of obtained surface finish C 8 and C18 alkyl chain.
In step (3), described beef extract-peptone nutrient agar adopts ordinary method formulated by extractum carnis 0.5g, peptone 1g, NaCl 0.5g, agar 2.0g and water 100 ml.
Present invention also offers a kind of microbial water-purifying agent for loach breeding water, be prepared from by aforesaid method.
By the microbial water-purifying agent for loach breeding water of the present invention, putting into cultivation has in the pond of loach, and water purification agent can sink to the water-settling interface at the bottom of pond, can reach the object of purifying aquaculture Chi Shui.Because the magnetic Nano material that have employed specific surface area large does carrier, this microbial water-purifying agent has and is easy to precipitation, high, the effect stability of purification efficiency and be easy to the advantages such as process, the online treatment of very applicable loach breeding water.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
embodiment 1:
(1) preparation of the magnetic silicon ball of surface finish C 8 and C18 alkyl chain:
(1-1) water heat transfer Fe is used
3o
4magnetic nano-particle: by 1 gram of FeCl
36H
2o, is dissolved in 30ml ethylene glycol, and add 4 grams of anhydrous sodium acetates, temperature of reaction is 200 DEG C, and the reaction times is 12 hours, generates Fe
3o
4magnetic nano-particle;
(1-2) by above-mentioned Fe
3o
4magnetic nano-particle washes with water, and removing water-soluble impurity, is then dispersed in 10g water, obtain dispersion liquid A, get centrifuge tube, add the above-mentioned dispersion liquid A of 3 g, add the ultrasonic 8min of 5ml 2M HCl solution, be separated the green clear liquid of removing with magnet again, then use 10ml water-dispersion, then collect particle with magnet, remove light green clear liquid, with the citric acid three sodium solution ultrasonic disperse of 5 ml 10wt%, leave standstill 2h, again obtain dispersion liquid B with after 5 ml water-dispersions;
(1-3) get above-mentioned dispersion liquid B 1g, after 5ml water and 30ml alcohol dilution, then add 20wt% ammoniacal liquor 0.5ml, ultrasonic disperse 10 minutes, stir, add 1ml tetraethoxy, stirring at room temperature 12 hours, collect with magnet, washing, dry, obtain complex microsphere;
(1-4) above-mentioned for 0.01g complex microsphere is joined in 1.0g anhydrous pyridine, ultrasonic disperse, and then add coating materials, described coating materials is the mixture of 0.1g dimethyl-octa base silane and 0.2g octadecyltriethoxy silane composition, stirring at room temperature 12 hours, with ethanol and water washing, then vacuum-drying, the magnetic silicon ball of obtained surface finish C 8 and C18 alkyl chain.
(2) magnetic silicon ball of the above-mentioned surface finish C 8 of 40 weight part and C18 alkyl chain is added in the water of 400 weight parts;
(3) under 5 revolutions per seconds of agitation conditions, add the microorganism reagent of 120 weight parts, described microorganism reagent is made up of following weight parts component: Rhodopseudomonas palustris (Rhodop seudanonas palustris) 70 parts, Synechococcus (Synechococcus) 70 parts, 20 parts, nitrated coccus (Nitrococcus), Nitrobacter winogradskyi (Nitrobacterwinogradskyi) 20 parts, Pseudomonas aeruginosa (P.Aeruginosa) 30 parts, Paracoccus denitrificans (Paracoccusdenitrificans) 20 parts, Beggiatoa (Beggiatoia) 5 parts, thiobacillus (Thiobacillus) 5 parts, ciliate (Ciliate) 40 parts, plantlike flagellate (Phrtomastingina) 50 parts, Dunaliella salina (Dunal iel la) 30 parts, chlorella (Chlorella) 50 parts,
(4) the common beef-protein medium of 80 weight part is added again (by extractum carnis 0.5g, peptone 1g, NaCl 0.5g, agar 2.0g, water 100 ml adopts industry universal method formulated) cultivate 24 hours under normal temperature, the microbial water-purifying agent for loach breeding water can be obtained.
embodiment 2:
Substantially the same manner as Example 1, obtain the microbial water-purifying agent for loach breeding water, difference is only that in step (1-4), coating materials is different.0.3g dimethyl-octa base silane is adopted to be coating materials in embodiment 2.
embodiment 3:
Substantially the same manner as Example 1, obtain the microbial water-purifying agent for loach breeding water, difference is only that in step (1-4), coating materials is different.0.3g octadecyltriethoxy silane is adopted to be coating materials in embodiment 3.
test case:
Get four piece sizes and the identical loach breeding pond of water quality (2m × 2m × 1m) is tested, the loach seedling 500 of about 3 g is thrown in every block pond.Wherein one piece of microbial water-purifying agent of embodiment 1 of splashing; The microbial water-purifying agent of one piece of embodiment 2 of splashing; The microbial water-purifying agent of one piece of embodiment 3 of splashing; Also have one piece and do not throw in any water purification agent, as blank group.
By microbial water-purifying agent according to 10 grams/meter
3ratio carry out full pool spilling head, after 7 days, water-quality determination is carried out to all loach breeding ponds.Water quality measurement according to being GB11607-89 National Standard of the People's Republic of China water quality standard for fishery and NY5051-2001 pollution-free food aquiculture fresh water water quality, testing index and data as shown in the table.
Testing index |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Contrast pond |
Dissolved oxygen (DO), mg/L |
7.2 |
6.8 |
6.7 |
4.5 |
Chemical oxygen demand (COD) (COD), mg/L |
61 |
73 |
72 |
102 |
Five-day BOD (BOD
5),mg/L
|
11.9 |
12.7 |
12.6 |
15.6 |
Ammonia nitrogen (NH
3-N) ,mg/L
|
0.15 |
0.21 |
0.22 |
0.30 |
Nitrite (NO
2~),mg/L
|
0.24 |
0.33 |
0.32 |
0.61 |
Hydrogen sulfide (H
2S) ,mg/L
|
0.13 |
0.22 |
0.20 |
0.35 |
As can be seen from data in table, every water-quality guideline of embodiment 1 is all better than embodiment 2 and embodiment 3, is more obviously better than contrasting pond.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.