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Optical biological reaction method for purifying biogas slurry by utilizing microalgae

A photobioreaction, photobioreactor technology, applied in specific-purpose bioreactors/fermenters, biochemical equipment and methods, bioreactor/fermenter combinations, etc., can solve the problems involved in the use of photobioreactors. Less problems, to achieve good marketability, easy operation of equipment, reliable effect

Inactive Publication Date: 2014-09-17
JIAXING UNIV
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Problems solved by technology

[0005] However, the existing technology is mainly applied to the resource development of microalgae, that is, to the biotechnology industry, and less involved in the use of photobioreactors for microalgae in the process of sewage treatment.

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  • Optical biological reaction method for purifying biogas slurry by utilizing microalgae

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Embodiment Construction

[0022] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0023] Such as figure 1 As shown, the photobioreactor used in the present invention includes a liquid storage tank 1 for storing biogas liquid, and the liquid storage tank 1 extends into the feed pipe 2 and the exhaust pipe 3, and the exhaust pipe 3 is connected in series Exhaust valve 4 is arranged. A discharge valve 5 is arranged at the bottom of the liquid storage tank 1 .

[0024] The liquid storage tank 1 can be square or cylindrical, and it adopts a sealed culture. It can make devices of different sizes and volumes according to the amount of biogas slurry to be processed; the material of the liquid storage tank 1 should be a non-metallic light-transmitting material that is resistant to ozone oxidation , specificall...

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Abstract

The invention provides an optical biological reaction method for purifying biogas slurry by utilizing microalgae. The optical biological reaction method for purifying the biogas slurry by utilizing the microalgae solves the problems that an optical biological reactor is less related in the existing microalgae sewage treatment process and a real-time monitoring function on data indexes is not realized. The optical biological reaction method for purifying the biogas slurry by utilizing the microalgae comprises the following steps: 1) carrying out pretreatment; 2) injecting biogas slurry into a liquid storage pot and controlling liquid amount; 3) sterilizing; 4) exhausting residual ozone; 5) adding microalgae, illuminating and introducing CO2; 6) cultivating the microalgae until density is 1.5-2.5, and completing degradation; 7) carrying out a secondary optical biological reaction or flocculation process on the discharged biogas slurry. The optical biological reaction method for purifying the biogas slurry by utilizing the microalgae has an important breakthrough in a high-efficiency biogas slurry purifying project adopting microalgae, is simple and feasible and has the advantages of low cost, simple equipment operation, reliable effect, good market generalization performance and important significance for solving the problem of biogas slurry waste water.

Description

technical field [0001] The invention belongs to the technical field of biological environmental protection, and relates to a wastewater treatment method, in particular to a photobiological reaction method using microalgae to purify biogas slurry. Background technique [0002] Microalgae are a type of autotrophic plants widely distributed on land and in the ocean, rich in nutrients and high in photosynthetic utilization. They can effectively use light energy, CO 2 In recent years, it has been widely used in the field of biopharmaceuticals, such as the production of algal protein. At the same time, due to its unique advantages, the algae wastewater treatment method has become a current research hotspot in wastewater treatment methods. [0003] First, algae and aerobic bacteria form a symbiosis system to promote the oxidation and decomposition of organic matter in sewage. Secondly, algae can absorb nitrogen and phosphorus in sewage, synthesize the organic matter they need, an...

Claims

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Application Information

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IPC IPC(8): C02F9/14C12M1/36C12M1/34C12M1/04C12N1/12
CPCY02E50/343Y02E50/30
Inventor 赵永军张跃进王娟葛志刚徐忠厚张慧张晶
Owner JIAXING UNIV
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