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Microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light

A wall-adhering culture, semi-dry solid-state technology, which is applied in the field of microalgae semi-dry solid-state adherent culture devices, can solve the problems of inability to utilize algae cells, achieve the effects of improving light energy utilization efficiency, low material requirements, and increasing production

Active Publication Date: 2013-09-11
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be predicted that if the traditional continuous light is adopted, the light energy cannot be utilized by algae cells at least during the dark synthesis stage

Method used

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  • Microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light
  • Microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light
  • Microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light

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Experimental program
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Embodiment

[0041] The test location is Qingdao, Shandong, and the test time is October 2011. Scenedesmus dimorphus (commercially available) was inoculated into the culture device, and the device was placed in an outdoor environment. The flexible material 3 uses industrial filter cloth as the supporting material for microalgae. The culture unit is 1 meter high, 2 meters long, 0.5 meters wide, and rotates at 10 meters per second. The culture solution in the sump 9 is BG11 (composed of: each liter of culture medium contains 1.5 grams of sodium nitrate, 0.04 grams of dipotassium hydrogen phosphate, 0.075 grams of magnesium sulfate heptahydrate, 0.036 grams of calcium chloride dihydrate, and 0.006 grams of citric acid , ferric ammonium citrate 0.006 g, EDTA disodium salt 0.001 g, sodium carbonate 0.02 g, boric acid 0.00286 g, manganese chloride tetrahydrate 0.00181 g, zinc sulfate heptahydrate 0.00022 g, sodium molybdate dihydrate 0.00039 g, sulfuric acid pentahydrate Copper 0.00008 g, cobal...

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Abstract

The invention belongs to the field of microalgae cultivation, and particularly relates to a microalgae half-dry solid state adherent cultivation device for alternate illumination of bright and dark light. The microalgae half-dry solid state adherent cultivation device comprises a bracket system, an adherent cultivation unit, a speed regulating motor, a liquid supplement pipe, a liquid collection tank and a peripheral protection cover, wherein the adherent cultivation unit is arranged on the bracket system and is connected with the speed regulating motor; the liquid supplement pipe is arranged above the adherent cultivation unit, and the liquid collection tank is arranged below the adherent cultivation unit; the liquid collection tank is internally provided with a liquid circulating pump, a liquid supplement device and a carbon supplement device; the liquid circulating pump is connected with the liquid supplement pipe through a pipeline; and the peripheral protection cover is arranged on the periphery of the bracket system and the adherent cultivation unit; and the top surface of the protection cover is made of a light-passing material. The device utilizes the principle of bright and dark flashing light to dilute the bright light and improve the utilization efficiency of luminous energy, thereby improving the yield of microalgae biomass.

Description

technical field [0001] The invention belongs to the field of microalgae cultivation, in particular to a microalgae semi-dry solid-state adherent culture device with alternating light and dark light Background technique [0002] Microalgae refers to aquatic planktonic algae capable of photosynthesis. Some microalgae are rich in protein and can be used as aquatic bait or livestock feed (such as spirulina). More importantly, some microalgae can synthesize a large amount of secondary metabolites under specific conditions, such as oils, carotenoids, polysaccharides, etc. These substances are often biologically active substances with high economic value and can be used in functional foods, Food additives, pharmaceuticals, bioenergy and other fields. In particular, extracting microalgae oil through large-scale cultivation of microalgae, and then transforming it into biodiesel is considered to be one of the most important ways to solve the problem of bioenergy production and carbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/16
Inventor 王俊峰刘天中陈昱陈晓琳张维彭小伟程鹏飞沈树华
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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