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High-density microalgae bio-membrane reactor based on membrane aeration and membrane concentration and algae culture method thereof

A technology of microalgae bio-membrane reactor, applied in the direction of photobioreactor, specific-purpose bioreactor/fermenter, bioreactor/fermenter combination, etc. Economically feasible overall system and other issues, to achieve the effects of reducing energy consumption, increasing growth rate, and increasing growth metabolic rate

Inactive Publication Date: 2021-05-25
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to build a large-scale, sustainable and economically viable overall system

Method used

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  • High-density microalgae bio-membrane reactor based on membrane aeration and membrane concentration and algae culture method thereof
  • High-density microalgae bio-membrane reactor based on membrane aeration and membrane concentration and algae culture method thereof
  • High-density microalgae bio-membrane reactor based on membrane aeration and membrane concentration and algae culture method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 2 As shown, the anaerobic fermentation liquid of starch processing wastewater is used to cultivate Chlorella vulgaris, the anaerobic fermentation liquid enters the main body of the photobioreactor through the wastewater culture liquid tank, and the aeration component is adjusted to control the carbon dioxide flow rate of the hollow fiber membrane module into the reactor to achieve In the state of micro-nano aeration, at the same time, the microalgae membrane-loaded filler in the reactor is maintained in a suspended growth state, and the ventilation rate is controlled at 0.15-0.2L / min. The hollow fiber membrane module is a microfiltration membrane, and the material is a silicone hollow fiber membrane. The aperture is 0.01-0.1 μm, and the light component is adjusted to control the light intensity from 3000 to 6000 lux, and the light-to-dark time ratio is 12h:12h. When the microalgae biofilm reaches the stable growth stage, the hydraulic retention time is 5...

Embodiment 2

[0035] Such as figure 2As shown, the fermentation biogas slurry of livestock and poultry breeding wastewater is used to cultivate Chlorella pyrenoidosa, the acidification solution enters the main body of the photobioreactor through the wastewater culture solution tank, and the aeration component is adjusted to control the carbon dioxide flow rate of the hollow fiber membrane module into the reactor to achieve micro Nano-aeration state, while keeping the microalgae membrane-loaded filler in the reactor in a suspended growth state, the ventilation rate is controlled at 0.15-0.2L / min, the hollow fiber membrane module is a microfiltration membrane, and the material is organic silicon hollow fiber membrane silk. 0.01-0.1μm, adjust the lighting components, so that the light intensity is controlled to 3000-6000lux, and the light-to-dark time ratio is 12h:12h. When the microalgae biofilm reaches the stable growth stage, the hydraulic retention time is 5-8 days. At this time, the conc...

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Abstract

The invention discloses a high-density microalgae bio-membrane reactor based on membrane aeration and membrane concentration and an algae culture method thereof. The microalgae bio-membrane reactor comprises a wastewater culture solution tank, a photobioreactor main body, a composite hollow fiber membrane module, an aeration module, an illumination module, an algae bio-membrane culture filler, a concentrated algae solution tank, a backwashing system and the like. According to the culture method of the microalgae biofilm reactor, wastewater enters the photobioreactor main body through the wastewater culture solution tank to provide nutrition required by growth for the fixed algae biofilm, and the composite hollow fiber membrane assembly is combined with the aeration assembly to provide carbon dioxide required by growth for the fixed algae biofilm, the illumination assembly provides illumination required for growth of the fixed algae biofilm, the wastewater treatment liquid is filtered by the hollow fiber membrane assembly and discharged into the water outlet tank, a part of the residual concentrated algae liquid is collected into the concentrated algae liquid tank, and a part of the residual concentrated algae liquid is continuously fixed on the surface of the culture filler for culture of the microalgae biofilm reactor in the next period.

Description

technical field [0001] The invention relates to the technical field of algae cultivation reactors, in particular to a high-density microalgae biofilm reactor and an algae cultivation method based on membrane aeration and membrane concentration. Background technique [0002] Microalgae refers to the general term for tiny algae that can only be seen under a microscope. Microalgae has the characteristics of rapid growth and high photosynthetic efficiency. It can effectively use solar energy to convert inorganic nutrients, carbon dioxide, water and other substances into organic compounds through photosynthesis. Because of its high oil content, easy cultivation, high yield per unit area, and does not occupy arable land Because of its advantages, it is considered to be the only known raw material that may replace fossil fuels, and it can be used for food, feed, biomass raw materials and fine chemical raw materials, or as experimental materials for genetics and molecular biology. ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C12M1/00C02F1/44C02F3/32
CPCC02F1/444C02F3/322C02F9/00C02F2209/40C12M1/002
Inventor 周雪飞张亚雷褚华强杨黎彬蒋淑红孙晶晶徐娇由晓刚于振江尹文俊
Owner TONGJI UNIV
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