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Controllable slope type microalgae cultivation system and microalgae cultivation method thereof

A culture system and microalgae technology, which is applied in the fields of medicine and health products, food, and energy, can solve the problems of inability to realize industrialized production, unfavorable industrialized production, and low production efficiency, and achieve easy implementation, reduced precipitation and wall attachment, and reduced energy the effect of consumption

Inactive Publication Date: 2013-08-28
HANGZHOU XINWEI LOW CARBON TECH R&D
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cultivation cost of raceway pond is low, but the production efficiency is also low, which is not conducive to industrial production; the closed photobioreactor cultivation production efficiency is high, but the cost is also high, and industrial production cannot be realized under the current market conditions

Method used

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  • Controllable slope type microalgae cultivation system and microalgae cultivation method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] For the initial cultivation, the controllable slope self-flow self-heating microalgae culture device is placed on the ocean tidal flat or artificial slope with a slope ratio of 1%-5%. Close the sampling valve, open the sampling valve, open the oxygen exhaust hole, introduce the algae liquid to be cultured into the reactor, fill it with appropriate amount of carbon dioxide, and cultivate it under sunlight for 12 hours (daytime). On the next day, open the sampling valve, introduce the algae liquid to be cultivated, control the flow rate at 10 cm / min, and flow the algae liquid in the entire culture vessel for 12 hours, which is equivalent to 20357.5 L of algae liquid, and the rate is 2.0 g / min. Calculating the wet algae concentration of L, a system can produce 40.7kg of wet algae per day, and the effective breeding time of a year is set at 200 days, so each system can produce 8.1 tons of wet algae per year. Each system covers an area of ​​80.0m 2 (Cultivator covers an...

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Abstract

The invention discloses a controllable slope type microalgae cultivation system and a microalgae cultivation method thereof. The system mainly comprises a microalgae pretreatment tank, a controllable slope type self-flow automatic temperature raising microalgae cultivation device on which a heat absorption coating is coated, and a microalgae liquid collection and aftertreatment tank; the controllable slope type self-flow automatic temperature raising microalgae cultivation device is arranged on an inclined surface with the slope ratio of 1 to 5 percent; the heat absorption coating is coated on the inner walls of straight pipes and U-shaped pipes, which are near one side of the inclined surface; the straight pipes and the U-shaped pipes form the controllable slope type self-flow automatic temperature raising microalgae cultivation device; each U-shaped pipe is provided with a carbon dioxide air inlet; two ends of each straight pipe are provided with valves; each straight pipe is also provided with an oxygen discharging hole; the tail end of the controllable slope type self-flow automatic temperature raising microalgae cultivation device is provided with a flow controller; primary microalgae liquid in the pretreatment tank is led into the controllable slope type self-flow automatic temperature raising microalgae cultivation device, so microalgae is collected and cultivated for 12 to 24 hours periodically; the system can cultivate the microalgae on scales, has a simple basic structure, is easy to implement, and can meet the industrial cultivation requirement of the microalgae.

Description

technical field [0001] The invention relates to a controllable slope type microalgae cultivation system and a microalgae cultivation method thereof, which belong to the fields of energy, medicine and health products, food and the like. technical background [0002] With the rapid growth of the global economy, the consumption of fossil energy such as oil and coal has increased sharply, and the crisis of fossil energy shortage is imminent. At the same time, the greenhouse effect caused by carbon dioxide emissions has become one of the major threats to human sustainable development. Looking for environmentally friendly alternatives New energy has gradually become a hot issue of concern to all mankind. After years of exploration, scientists have discovered that microalgae is one of the ultimate solutions to the above problems. It can be used to produce different forms of biofuels, such as methane, biodiesel, aviation fuel, hydrogen and even bioethanol. On the other hand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/00C12M1/36C12M1/04C12N1/12
CPCC12M21/02C12M41/22C12M29/22
Inventor 陈春辉杨宗鑫杨济芳
Owner HANGZHOU XINWEI LOW CARBON TECH R&D
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