Culture method of golden algae and application thereof in controlling water-bloom algae aspect
A technology of blooming algae and golden algae, applied in the directions of microorganism-based methods, chemical instruments and methods, biochemical equipment and methods, etc., can solve the problems of destroying the aquatic ecological environment, increasing the content of harmful substances in lake sediments, etc. The effect of good ecological safety, easy cultivation and easy utilization
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Embodiment 1
[0020] A kind of gold algae, its culture method is, cultivate in artificial climate box, light-dark ratio is 14h:10h, temperature is 25 ℃, relative humidity is 75%, adopts the following steps under the condition of light intensity 800~1300lux:
[0021] (1) prepare A5 solution, with H 3 BO 3 , MnCl 2 .4H 2 O, ZnSO 4 ·7H 2 O, CuSO 4 ·5H 2 O, Na 2 MoO 4 2H 2 O and distilled water as raw materials, according to H 3 BO 3 : MnCl 2 .4H 2 O: ZnSO 4 ·7H 2 O: CuSO 4 ·5H 2 O: Na 2 MoO 4 2H 2 O: Distilled water = 286mg: 181mg: 22mg: 7.9mg: 3.9mg: 100ml;
[0022] (2) Prepare BG11 medium, the formula of BG11 medium is that every 1L of medium contains NaNO 3 : 150mg, MgSO 4 ·7H 2 O: 7.5mg, NaSiO 3 9H 2 O: 5.8 mg, K 2 HPO 4 : 4mg, CaCl 2 2H 2 O: 3.6 mg, Na 2 CO 3 : 2mg, citric acid: 0.6mg, ferric ammonium citrate: 0.6mg, A5 solution: 0.1ml, the rest is distilled water;
[0023] (3) In the BG11 medium, add the initial density of 10 4 ~10 5 pcs mL -1 Chrysophy...
Embodiment 2
[0028] Centrifuge the golden algae liquid, and add the harvested golden algae to the algae liquids of Microcystis aeruginosa, Sagittarius terrestriale, Chlamydomonas reinhardtii, Chlorella pyrenoidosa and Crescent algae. The initial density of algal cells of each bloom algae is 2~9×10 5 pcs mL -1 , the initial investment density of golden algae is 5×10 4 pcs mL -1 , after culturing for 5 days, the removal rates of algal cells were 100%, 99%, 99%, 89% and 25%. It can be seen that Chrysogenum phagocytosis has phagocytosis on the above five kinds of bloom algae, and the phagocytosis effect on Microcystis aeruginosa, Sagittarius terrestris and Chlamydomonas reinhardtii is particularly obvious.
Embodiment 3
[0030] Mix 10mL golden algae solution (the initial density of golden algae is 2×10 4 pcs mL -1 ) was directly added to the culture solution of Microcystis aeruginosa with different initial densities, the density of Microcystis aeruginosa decreased rapidly, and the change curve of the removal rate was as follows: figure 1 As shown, the removal rate of Microcystis aeruginosa reached more than 99% in 40 hours. At the same time, it was observed that the lower the initial density of Microcystis aeruginosa, the faster the removal rate of the golden algae, and the shorter the time required for the culture medium to become clear. It can be seen that the effect of preventing algae blooms is more obvious when applying golden algae to the initial stage of algae blooms.
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