During the aerobic tank treatment process, a lot of bubbles are prone to appear, either white or brown. Brown foam is not only sticky, but also difficult to eliminate, which will have a negative impact on water treatment. Defoaming can be controlled by adding an aerobic pool defoamer. This article analyzes the causes and hazards of foaming in the aerobic pool, and provides a targeted defoaming program.
Reasons for brown foaming in the aerobic pool
In the aerobic tank treatment process, when the aerobic tank system is operating under a very low load, brown foam is prone to appear.
1. Aging of sludge
When the aerobic system is operating under a very low load, because the concentration of organic matter in the water as microbial food is extremely low, that is, the microorganisms and the food are in a state of excessive porridge. At this time, the catabolism becomes weak due to scarce food, and the dissolved oxygen in the water Only a small part can be consumed by catabolism.
Since catabolism is weak, in comparison, anabolism will be in a dominant position at this time, and oxygen is mainly used for endogenous respiration. In this way, the aging phenomenon of the sludge will occur.
2. Tawny foam appears
The aging of sludge sludge disintegrates to different degrees. At this time, the accumulation of foam will also be formed on the liquid surface of the aerobic tank. The foam shape formed at this time is very different from the foam formed by high load, which is characterized by the volume of foam bubbles. Large and soft, most of them are yellowish brown due to the attachment of fine sludge flocs.
When the sludge aging phenomenon is observed from the surface, it is mainly manifested as: the activated sludge has a dark color, the biological flocculation ability deteriorates, and the accumulation of biological foam appears on the surface of the aerobic tank.
(Picture: Aerobic Pool Foam)
The harm of aerobic pool foam
1. A large amount of foam will take away the sludge, affect the treatment process, and increase the cost of water treatment;
2. The brown foam is mainly biological foam, which is highly viscous and will reduce the oxygenation efficiency of the aeration tank;
3. Foam accumulation is prone to corruption, deteriorates water quality, affects the normal operation of the system, and increases the difficulty of water treatment.
Aerobic pool defoaming solution
After the above analysis, the reason why a large amount of brown foam appears in the aerobic pool has a great relationship with the treatment process. The brown foam is mainly biological foam. Bio-foam is formed by a type of filamentous bacteria of the genus Nocardia. This type of microorganisms has a lower relative density than water and is easy to float to the surface. Most of the microorganisms related to foam are filamentous or branched and easy to form. The "net" can trap particles and small bubbles, etc., and float to the water surface to form brown foam.
If the aerobic pool foam is not treated in time, it will affect the water treatment process and increase the difficulty of treatment. The foam can be defoamed by spraying the water treatment defoamer used in the aerobic pool after dripping.
The Nanhui defoamer manufacturer has developed and designed the aerobic pool defoamer according to the characteristics of foam prone to aerobic pool. It is a compound defoamer with high concentration, quick effect, small dosage and high cost performance. . Used in aerobic tanks, it can quickly eliminate biological foam, and it is also effective for chemical foams in aerobic tanks.
(Picture: Aerobic pool defoamer)
Advantages of Nanhui Aerobic Pool Defoamer
1. Free samples:
Nanhui factory integrates production and research and development, and has a wide range of defoamer formulas. Samples can be recommended for your foaming environment;
2. Sample customization:
Nanhui defoamer has strong research and development strength and provides customized services according to samples. It can be tested according to the foaming situation of your samples and configured with a targeted defoaming formula, which has good defoaming pertinence and good application effects;
3. Perfect service:
Source factory direct sales, sufficient supply, perfect pre-sales and after-sales service system, professional and technical personnel one-to-one service, professional guidance, so that you can use it with peace of mind;
4. Stable quality:
Professional manufacturer with stable product quality, which can eliminate foam caused by chemical, biological and physical reasons. It can be used in high temperature or strong acid environment, with good effect of continuous defoaming and foam suppression.
