How does the fine bubble tubular diffuser in different concentrations of sewage work?

How does the fine bubble tubular diffuser in different concentrations of sewage work?

Apr 17, 2020

Fine bubble tubular diffuser is a kind of aerator. It is mainly used in the oxygenation of urban sewage and industrial wastewater. How does the tubular aerator with good chemical properties work in different concentrations of sewage? Product bubbles The small diameter can not only maintain a high oxygen conversion rate, but also achieve the effect of mixing. Next, let's briefly understand the working content of the down-pipe aerator.


1. The method of using the fine bubble tubular diffuser in low concentration sewage is the aerobic method, because the aerobic microorganisms in the activated sludge must have oxygen to work. In the aeration tank of the sewage treatment biochemical system, the oxygenation power is positively correlated with the aerobic microorganism growth. The supply of dissolved oxygen should be considered according to the number, physiological characteristics, substrate properties and concentration of aerobic microorganisms. In this way, the activated sludge is in a better environment for degrading organic matter.


2. The use method of the tubular aerator in the treatment of sludge and higher concentration sewage is the anaerobic method. It is an artificial enhancement method for self-purification of water, a method for removing organic matter in sewage by relying on the main body of the activated sludge mission. The dissolved oxygen in the aeration tank should be maintained at 34mg / L. If the oxygen supply is lacking, the activated sludge will have a poor function, causing the waste water disposal to fall. In order to ensure satisfactory oxygen supply, it is necessary to follow the storage type aerator.


3. The tube type aerator is a non-clogging type aerator with automatic cleaning and avoiding the backflow of sewage. When the air supply of the blower is suspended, the membrane is immediately shortened and closed, and the sewage will never reversely penetrate into the aeration tube. When the blower is restarted, the film releases bubbles, which will move together due to its elasticity, and will stick the sludge bomb However, this repair-free feature is an indispensable choice for activated sludge construction, which greatly reduces the cost of repair work.