Membrane biological reaction system for treating greenhouse gas by bacteria and algae synergistically

Abstract

The invention discloses a membrane biological reaction system for treating greenhouse gas by bacteria and algae synergistically. The system comprises a reactor, a bio-membrane system and an illumination device, wherein the bio-membrane system is arranged in the reactor and divides the internal space of the reactor into a methane-oxidizing bacterium reaction chamber and a microalgae reaction chamber; the bio-membrane system comprises a microalgae bio-membrane and a methane-oxidizing bacterium bio-membrane; a microporous filter membrane is arranged between the microalgae bio-membrane and the methane-oxidizing bacterium bio-membrane; and the illumination device is arranged right in front of the microalgae reaction chamber. In the membrane biological reaction system, oxygen generated by microalgae photosynthetic carbon sequestration and carbon dioxide generated by biochemical conversion of methane-oxidizing bacteria can be utilized by the methane-oxidizing bacteria and the microalgae respectively, bacteria and algae metabolic processes are coupled, a conversion process is clean, the product is supplied to cell growth and metabolism, adsorption type culture is energy-saving and efficient, and the purposes of synergistically treating greenhouse gas and increasing the biomass yield can be achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a membrane bioreaction system for co-processing greenhouse gases by bacteria and algae. Background technique [0002] Microalgae refers to the general term for single-cell microalgae that can only be observed under a microscope. As a new type of renewable biomass energy with the most potential, it has high photosynthetic efficiency, zero net carbon value, easy cultivation, short growth cycle, It has the advantages of high oil content and strong environmental adaptability. Microalgae can convert solar energy into chemical energy through photosynthesis, synthesize carbohydrates, proteins, lipids, etc., and absorb CO in the air 2 , release O 2 , to achieve CO 2 Emission reduction, namely: 6CO 2 +6H 2 O+light→C 6 h 12 o 6 +6O 2 , and can use microalgae to produce biodiesel, health food, feed, natural fertilizer, etc. The culture methods of micro...

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Problems solved by technology

[0004] Chinese patent application CN109136082A discloses a membrane bioreactor and a symbiotic system of bacteria and algae for the symbiosis of microalgae and methane-oxidizing bacteria to strengthen biogas production of bio-oil. In the reactor, a symbiosis system of methane-oxidizing bacteria and microalgae is established, but The oxidizing bacteria and microalgae are in the same liquid phase chamber, and the microalgae methanotrophic bacteria symbiotic biofilm cannot separately treat different sources of greenhouse gases, such as coal mine gas and flue gas, the treatment efficiency is low, and it is not easy to separately collect the loaded microalgae and Two different biomasses of methanotrophs

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