Continuous production device for culturing Microalgae by closed piston flows and production method thereof

Abstract

The invention relates to a continuous production device for culturing microalgae by closed piston flows and a production method thereof; the device comprises at least one transparent cultivating unit device, the continuous production device is formed by that all cultivating unit devices which are sequentially arranged in parallel at interval and are laminated up and down for one to ten layers andare communicated with each other are fixed on the ground or a ground frame base; the height of the unit device is 1-3m, the width thereof is 2-4m and the length thereof is 5-100m, a lateral central line separating plate, a plurality of baffle plates, an illumination source, a sleeve stirrer, a CO2 minitype nozzle one-way outlet, a sedimentation tank, an ultrasonic sedimentator and an automatic control device are arranged in the continuous production device. The device has special structure, simple operation, high spatial utilization ratio, low cost and all-weather high-efficiency closed piston flows, and can be widely applied to the production of various kinds of microalgae, in particular for oil-rich microalgae.

Description

technical field [0001] The invention relates to the field of microalgae cultivation engineering, in particular to a continuous production device and a production method for closed plug flow cultivation of microalgae. Background technique [0002] Microalgae have been growing in fresh water, sea water or salty lake water since ancient times. In particular, it is well known that Spirulina was discovered in the Lake Chad area in the 1960s and has developed rapidly, because the microalgae is rich in protein and nutrients. , known as the treasure house of concentrated nutrition, is recommended by the Food and Agriculture Organization of the United Nations (FAO) as the most ideal and perfect food in the 21st century. Countries all over the world are competing to produce it. At present, the output of countries in the world is more than 10,000 tons. [0003] With the rapid development of industrial production in various countries in the world, energy consumption continues to increas...

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Problems solved by technology

[0004] At present, the production method of microalgae (such as spirulina, etc.) cultivated in the world is still produced in an open-air large pond production system. Although the production is simple, the investment is low, and the production management technology content is low, there are many defects in this production method. For example, it is prone to biological pollution, that is, pollution caused by water sources, atmosphere, environment, operation, etc., and is severely restricted by climatic conditions, which will bring extremely adverse effects on the quality and stable production of microalgae production, especially in areas with little light and rainy weather and severe winters. Areas with long seasons cannot produce normally throughout the year, which directly limits the cultivation and development of microalgae

Since the 1980s, microalgae production developers (spirulina) and production engineering experts from all over the world have developed a variety of devices and methods for closed cultivation of microalgae (such as spirulina) in order to overcome the above-mentioned production development factors , such as pipeline-type structured photobioreactor and CN1475558A disclosed microalgae (spirulina) reactor system, large investment, high energy consumption, high cost, difficult long-term industrial production, as for the cultivation device and production of oil-rich microalgae The method has not been reported yet

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