微藻培养固定微生物发酵尾气CO 2 补充发酵原料的方法

The invention relates to CO2 emission reduction and recycling technologies, and discloses a method for adopting microalgae culture immobilized microbe fermentation tail gas CO2 as a supplementation fermentation raw material. According to the invention, tail gas in a microbe fermentation tank is directly introduced into a microalgae culture illumination bioreactor; conditions such as illumination, temperature, and ventilation are controlled; proper inorganic nutrient salts are added; CO2 in microbe fermentation tail gas is adopted as a carbon source for culturing microalgae; biomasses such as carbohydrates and proteins are accumulated; the biomasses are converted into raw materials such as carbon and nitrogen sources needed by fermentation through pretreatment; and the raw materials are delivered back to the microbe fermentation system to be utilized as a fermentation supplementation raw material. With the method provided by the invention, emission reduction and recycling of the microbe fermentation tail gas CO2 are realized; grain raw material consumption of microbe fermentation is reduced; and good environmental and social benefits are provided. | 本发明涉及CO 2 减排和循环利用的技术，公开一种微藻培养固定微生物发酵尾气CO 2 作为其发酵补充原料的方法。将微生物发酵罐中的尾气直接引入微藻培养光照生物反应器中，控制光照、温度和通气等条件，添加合适的无机营养盐，以微生物发酵尾气中的CO 2 为碳源培养微藻积累碳水化合物、蛋白质等生物质，并经过预处理将生物质转化为发酵所需的碳源和氮源等原料，返回到微生物发酵系统中作为其发酵补充原料。本发明实现了微生物发酵尾气CO 2 的减排和循环利用，同时能减少微生物发酵对粮食类原料的消耗，具有良好的环境效益和社会效益。