Bacteria-algae synergism low-carbon membrane bio-reaction system

Abstract

The invention belongs to the technical field of environmental protection, and more particularly relates to a bacteria-algae synergism membrane biological photosynthetic reaction system, aiming at realizing low-carbon emission. The system comprises a pond body, a water inlet pipe, filler, illumination devices, an aerating apparatus, a membrane module, a water outlet pipe and a suction pump, and ischaracterized in that the pond body is internally provided with the filler; the illumination devices are evenly distributed at the two sides of the filler; the aerating apparatus is positioned at thebottom of the pond body; the membrane module is arranged inside the pond body and is close to the water outlet pipe; the water outlet pipe is connected with the suction pump; and the water inlet pipeis positioned at one side of the pond body, and the water outlet pipe is arranged at the other side of the pond body. By utilizing the physical and chemical properties of bacteria and algae, and carrying out synergistic effect according to metabolic coupling of substrate and product, the bacteria-algae synergism membrane biological photosynthetic reaction system can reach system metabolic flux balance, thus reducing the aeration consumption of a sewage disposal system and the emission of greenhouse gases such as carbon dioxide and the like. Meanwhile, by utilizing the technology of membrane separation, the system realizes separation between bacteria, algae and water, and ensures the quality of outlet water to be stable.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to sewage treatment technology, in particular to a bio-photosynthetic reaction system of bacteria and algae synergistic low-carbon membranes. Background technique [0002] The sewage treatment system mainly uses microorganisms (mainly bacteria) to degrade and treat carbon, nitrogen, and phosphorus pollutants. For example, the most common activated sludge system uses aerobic heterotrophic bacteria to decompose organic matter heterotrophically. Carbon dioxide and water, simultaneously synthesizing biological bacteria; using nitrifying and denitrifying bacteria to transform nitrogen pollutants into N 2 ; Use phosphorus accumulating and phosphorus releasing bacteria to remove phosphates. [0003] The main disadvantages of the traditional sewage biological treatment process include: (1) Emission of a certain amount of greenhouse gases; for example, according to estimates, ...

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Problems solved by technology

[0003] The main disadvantages of the traditional sewage biological treatment process include: (1) Emission of a certain amount of greenhouse gases; for example, according to estimates, a 10,000-ton / day domestic sewage treatment plant emits carbon dioxide equivalent to 4,500 households or 2,500 cars. (2) It is difficult to effectively use the large amount of sludge produced; the activated sludge has complex components and is a "non-standard product", and its utilization methods and channels are limited

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