A membrane bioreaction system for co-treatment of greenhouse gases by bacteria and algae

Abstract

The invention discloses a membrane biological reaction system for bacteria and algae to synergistically process greenhouse gases, comprising a reactor, a biological membrane system and a lighting device. In the microalgae reaction chamber, the biofilm system includes microalgae biofilm and methane-oxidizing bacteria biofilm. A layer of microporous filter membrane is arranged between the microalgae biofilm and the methane-oxidizing bacteria biofilm, and the illumination device is arranged in front of the microalgae reaction chamber. . In the membrane biological reaction system of the present invention for the synergistic treatment of greenhouse gases by bacteria and algae, the oxygen produced by the photosynthetic carbon fixation of the microalgae and the carbon dioxide produced by the biochemical transformation of the methane oxidizing bacteria can be utilized by the methanotrophic bacteria and the microalgae respectively, and the metabolic processes of the bacteria and algae are similar to each other. Coupling, the conversion process is clean, the products are used for cell growth and metabolism, and the adsorption culture is energy-efficient and efficient, which can achieve the purpose of co-processing greenhouse gases and increasing biomass production.

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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