Method for cultivating diatom in summer
A diatom and culture container technology is applied in the field of phytoplankton culture to achieve the effects of promoting rapid growth, promoting a large number of attached growth and high growth density
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Embodiment 1
[0051] Embodiment 1 (cultivation under the condition of outdoor natural light, diatom growth does not occur)
[0052] In warm June, high-concentration cyanobacteria blooms (microcystis blooms) accumulated on the water surface were obtained from the western shore of Taihu Lake, and the high-concentration cyanobacteria blooms were placed in plastic buckets, and then rotted and fermented at room temperature after the lid was closed , after 12 days of fermentation, the color of the cyanobacteria bloom becomes earthy yellow, and the particles of the cyanobacteria bloom become finer. Then filter the rotten cyanobacteria bloom with a 120-mesh screen, and use the filtered nutrient-rich solution for algae cultivation.
[0053] A plexiglass culture column with a conical lower part and a cylindrical upper part (the diameter of the upper cylindrical area is 40 cm) is used to place the algae under outdoor natural light conditions, and the total volume in the column is 80 L. A total of 6 p...
Embodiment 2
[0055] Embodiment 2 (the cultivation of cyanobacteria water as raw material, the photo of algae is Figure 1 to Figure 8 )
[0056] High-concentration cyanobacterial blooms (microcystis blooms) on the water surface were obtained from Meiliang Bay, Taihu Lake in high temperature July. The high-concentration cyanobacteria blooms were placed in plastic buckets and covered with lids, and then rotted and fermented at room temperature. After 10 days of fermentation , the color of the cyanobacteria bloom becomes yellower, and the particles of the cyanobacteria bloom become finer. Then use a 120-mesh sieve to filter the cyanobacteria bloom, and obtain the nutrient-enriched solution after filtering to remove particulate matter, which is used for algae cultivation. The freshly obtained algae culture solution is light yellow-brown.
[0057] Algae were cultivated in 3 water tanks of 120 cm x 70 cm x 70 cm in size that had been cleaned. The bottom and walls of the water tank were opaque,...
Embodiment 3
[0060] Embodiment 3 (the cultivation of cyanobacteria water as raw material, the photo of algae is Figure 9 ~ Figure 12 )
[0061] Obtain high-concentration cyanobacteria blooms (microcystis blooms) from aquaculture ponds in high-temperature August, place high-concentration cyanobacteria blooms in plastic buckets and cover them, and rot and ferment at room temperature. After 7 days of fermentation, cyanobacteria water The color of the blooms becomes yellower and the particles of cyanobacteria blooms become finer. Then use a 120-mesh sieve to filter the cyanobacteria bloom, and obtain the filtered rich nutrient solution for algae cultivation.
[0062] The culture container is 18 colorless and transparent glass cylinders with a size of 30cm×30cm×30cm. All 18 glass cylinders are placed in the glass greenhouse. The upper space of the glass cylinders is shaded by gray sunshade curtains. , The shading rate of the glass cylinder area is 96.6% to 97.4%. Add filtered cyanobacteria ...
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