Biological membrane oxygen-increasing aeration plate, aeration device and algae biological acclimation method

Abstract

The invention discloses a biological membrane oxygen-increasing aeration plate, an aeration device and an algae biological acclimation method. According to the method, nitrogen fixation biological membrane materials are laid on the aeration plate, nitrogen and oxygen in the air exhausted by the aeration device are separated according to the characteristics of nitrogen fixation algae, and a mucous layer for preventing oxygen from passing through is formed, so that oxygen in the lower layer makes full contact with microorganisms in sewage, the oxygen concentration in a water body is increased, and purification of the sewage is achieved; meanwhile, dissolved oxygen monitoring equipment is adopted for carrying out real-time monitoring on the oxygen concentration in the water body, and the dosage of a biological nutrient solution and the stay time of the sewage are regulated in real time according to the growing conditions of the nitrogen fixation blue-green algae, so that aeration efficiency is improved, and hydraulic stay time is shortened.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a biofilm oxygenation aeration plate, an aeration device, and an algae biological domestication method. Background technique [0002] Aeration refers to the process of forcibly transferring the oxygen in the air to the liquid, the purpose of which is to obtain sufficient dissolved oxygen. In the water treatment process, the aeration effect is mainly in two aspects: one is to aerate the microorganisms to degrade pollutants aerobically; the other is to aerate and stir the water body to enhance the turbulence of the water body, which is beneficial to the transfer and diffusion of oxygen and the mixing with the water body . Reasonable aeration can effectively increase the dissolved oxygen content, and ensure the full contact of organic matter and microorganisms to accelerate the biodegradation process of pollutants, that is, to improve the efficiency of sewage treatment. ...

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Problems solved by technology

In addition, with the development of membrane oxygen enrichment technology, a membrane separation oxygen supply method and system (patent number: ZL201310468909.5) has also been applied in the field of water treatment. Depending on the oxygen and nitrogen separation coefficient of the membrane material, single-stage separation Oxygen-enriched with a purity of about 23-60% can be obtained. There is no doubt that the membrane separation method has opened up a new way for oxygen-enriched extraction. However, the traditional oxygen-enriched aeration method using organic membranes or inorganic ceramic membranes is not used During the process, the stability of the continuous operation of the air supply system and the gas pressure before and after the diaphragm group must be considered, which will inevitably lead to an increase in the energy consumption of the equipment, and the structure of this type of equipment is complex, and the footprint of the equipment needs to be considered during use.

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