How to use biocirculating water defoamer? What do I need to pay attention to?

Biological circulating water defoamer is suitable for all kinds of circulating cooling water treatment, sewage treatment, circulating industrial sewage, circulating wastewater treatment in various industries at room temperature, alkali system water treatment, etc., biological circulating water defoamer should be stirred evenly before use, and directly poured or drip addition when used; If used after layering and stirring, it will not affect the effect; The recommended dosage can be increased or decreased on a case-by-case basis.

The circulating water defoamer is composed of polyether, silica, dispersant and stabilizer; At lower concentrations, it can maintain a good anti-foaming effect; It is suitable for direct addition at low and high temperatures; Defoamers specially developed for all types of biological water recycling treatment systems. The characteristics are: it can remove biological fine bubbles, static and dynamic fine bubbles, large bubbles, viscous liquids can not break bacteria and defoam quickly, long foam inhibition, low dosage, especially for various sterile types of water.

Dispersible in water, it is compatible with liquid products.

Biological circulating water defoamer is a defoamer specially developed for various water treatment systems, which can be used for biological recycling sewage treatment, industrial sewage treatment, garbage leachate, washing sewage treatment, textile sewage treatment, biological water treatment and other wastewater, sewage defoaming and foaming. According to the foaming system, the amount of defoamer can be added, and the amount of addition can be determined according to the specific situation. Do a small test before use to avoid abnormal situations.

Why does foam occur in the process of circulating water treatment?

1.Since the circulating water contains detergents, surfactants used by workers.

These chemical additives contain a variety of surfactants and are easily foamed;

2.The appropriate temperature and acid-alkali environment in the circulating water are very suitable for the growth of microorganisms in activated sludge, and the filamentous bacteria in the microorganisms will produce biological foam due to the multiplication;

3.When circulating dissolved oxygen in water.

Insufficient, the system is operating at low load, nitrification reaction.

Nitrogen is released to produce a large amount of foam;

4.Foam can also occur due to the circulating flow of circulating water during use, and the mixing with machinery and equipment.

Use recirculating water treatment defoamer.

There will be no impact on water treatment. This defoamer has a wide range of applications. Circulating water treatment defoamer is suitable for all kinds of circulating water, circulating cooling water treatment, sewage treatment, circulating industrial sewage, circulating waste water treatment in various industries, medium temperature, alkali system water treatment, etc. Good antifoaming and antifoaming effect.

The defoamer has good dispersion and can quickly penetrate the foam when added to the circulating water to achieve the purpose of defoaming and foaming. It has good compatibility with water, does not break the emulsion and does not precipitate.

1. A large amount of foam will be generated in the early stage of activated sludge culture.

2. Activated sludge fights poison.

3. Reproduction of bacteria and algae.

You can use a defoamer, but it's best to find out the root cause and prescribe the right medicine!

You can choose to defoam, strong foam inhibition, low dosage, and the basic properties of the bubble system. Good heat resistance, stable chemical properties, no environmental pollution, environmentally friendly Zheng damage, low operating cost. Impurities in the water foam shout brother to remove quickly.

When choosing a recirculating water treatment defoamer, the following factors can be considered:

1.Water quality characteristics: The water quality composition and characteristics may be different in different circulating water treatment systems.

For example, factors such as hardness, ammonia nitrogen, and organic matter content can all have an impact on foam. Therefore, it is necessary to understand the water quality characteristics of circulating water and choose a defoamer that is suitable for this water quality.

2.Defoaming effect: The defoaming effect of the defoamer is an important indicator for the selection of reed belts. It is necessary to choose a defoaming reed attack agent that can effectively break and inhibit foam, and has a stable defoaming effect.

3.Adaptability: Water quality in a recirculating water treatment system may vary, such as seasonal changes or changes in the treatment process. Therefore, it is important to choose an adaptable defoamer that can still have a good defoaming effect under different water conditions.

4.Safety and environmental protection: The safety and environmental friendliness of the defoamer are also important considerations in the selection. Defoamers that meet relevant national and industry standards should be selected, and products containing harmful substances should be avoided.

5.Technical support: Choose a manufacturer with good technical support capabilities. Circulating water treatment systems may involve complex processes and management, and the technical support and consulting services provided by manufacturers can help solve problems in practical applications.

6.Cost-effective: Comprehensively consider the quality and performance of the defoamer, and choose a defoamer with reasonable quality and good cost performance.

When selecting a recirculating water treatment defoamer, it is best to conduct practical testing and evaluation to ensure its suitability and effectiveness in a specific recirculating water treatment system. You can refer to the defoaming experience of other similar circulating water systems, consult with the manufacturer and conduct field tests to select the most suitable defoamer.

To know what the capabilities of biological water treatment defoamers are, we must first know what the defoaming principle of defoamers is. Biological water treatment defoamers work during or after the foam layer formation phase: a uniformly dispersed defoamer penetrates into the foam elastic membrane and is distributed in the membrane, causing the thin layer to break through a decrease in surface tension.

Therefore, for biological water treatment defoamer, it must be able to spread quickly on the surface of the foam and penetrate quickly, so that the foam can burst quickly, and it must also have the ability to resist high temperature, low temperature, stable physical properties, chemical inertness, and very low surface tension; It is also necessary to take into account the process of foam generation in the system, the compatibility of the system and the concentration, temperature and viscosity.

The principle of action of water treatment defoamer: after the defoamer is added to the foaming system, the tension on the surface of the foam will continue to decrease, and in this process, the foam will extend to all sides until it bursts. When there are too many surfactants in the water body, foam will be continuously generated, so for the defoaming treatment, it is not enough to eliminate the formed foam, but also to be able to suppress the foam generation from the root.

Defoamers not only have defoaming functions, but also have foam suppression functions. Foam inhibition is mainly to reduce the surfactant in the foaming system, destroy the foundation of foam formation, and inhibit the production of foam. The special defoamer for biological water treatment is a kind of water treatment defoamer, which is a kind of water treatment defoamer, which is specially designed for the use of biological water treatment, and its effect is better than that of general-purpose defoamer.

The water treatment defoamer can be regarded as a large category, covering all the defoamers that can be used for water treatment, and also refers to the defoamer that can be used for water treatment. Generally speaking, the process of water treatment has its own particularity or special requirements, and the use of targeted defoamers will be more effective. If the requirements are not high, you can use the general-purpose type.

Because in comparison, the general-purpose ** will generally be lower.

Biochemical sewage defoamer is a defoamer used to treat biochemical sewage, and its use method is as follows

Measure water quality: Before using biochemical wastewater defoamers, it is necessary to measure the pH value, organic matter content, ammonia nitrogen, nitrate and other indicators in the water quality to ensure that the use of defoamers does not have a negative impact on water quality.

Add defoamer: Add a biochemical effluent defoamer to the biochemical effluent in a certain proportion (usually 1:100 to 1:200) and stir well. You can add devices using manual or automatic adding.

Treatment of wastewater: After adding a defoamer, the wastewater needs to be treated until the foam disappears. Typically, the treatment time can range from minutes to hours, depending on the water quality and the characteristics of the defoamer.

Measuring effect: After treatment, the foam content in the water needs to be measured to determine the effectiveness of the defoamer. If the foam content is low, it means that the defoamer is working well.

It should be noted that the method and dosage of biochemical wastewater defoamer need to be adjusted according to the specific water quality and treatment requirements, and if used incorrectly, it may lead to waste of defoamer or negative impact on water quality. Therefore, before using biochemical effluent defoamers, it is advisable to conduct a small test to determine the best method and dosage to use.

The following describes how to use the defoamer

1.Dosing position: directly added to the foaming system;

2.Dosing method: to ensure its uniform dispersion, in order to give full play to the continuous defoaming ability of the defoamer, it is recommended to use a metering pump to continuously add dropwise or spray the water surface with a nozzle;

3.Dosing temperature: For the system with a higher foaming temperature (>60), it is recommended to add the defoamer to the system before 60 to exert its effectiveness;

4.Dosage: According to different foaming systems, the dosage of defoamer can be 200ppm and 5000ppm, and the dosage is determined according to the specific situation of the customer;

5.Small-scale test method: take 100ml of water sample, prepare the defoamer into one thousandth of an aqueous solution, add the prepared defoamer dropwise while stirring to observe the foam situation of Senheng, if there is no foam and stirring does not foam, then it is the dosage.

If one drop can be added dropwise to eliminate this foam, the concentration of the prepared aqueous solution can be diluted by 10 times, that is, one ten-thousandth of the aqueous solution and then tested.

Defoamers have the following advantages

Strong defoaming ability, fast reaction speed, 1 minute can be quickly defoamed;

The foam inhibition time is long-lasting, compared with other defoamers of the same type, the dosage is less and the time is longer;

Easy to add and use socks, good operability;

It does not affect the basic properties of the foaming system and does not harm the microorganisms in the water;

High temperature resistance, strong acid and alkali resistance, suitable for dosing under various conditions;

Good compatibility, strong dispersion ability, good permeability, can make the agent react uniformly;

Chemically stable and easy to store.

Defoamer, the main function is to eliminate foam and inhibit foam regeneration, defoamer can be widely used in all walks of life, although the body is small but the effect is fine. However, for many workers who do not know and use defoamers for the first time, there is a question that bothers them, that is, when to add defoamers? Do you add it before using it or wait until there is foam?

Most workers who use defoamers add defoamers when they produce foam. In fact, you can not only add it when it is foaming! Let's take silicone defoamers as an example, silicone defoamers have four conventional addition methods:

1.Pre-foam addition: This method inhibits foam production by adding a defoamer to the system where foam is likely to be produced beforehand. For closed containers and installations, defoamers are effective in eliminating foam.

2.Continuous dropping addition: when the foaming liquid is either circulating or flowing, the circulating flow of the foaming liquid will consume the defoamer, in this case, using the method of continuous dropping of the defoamer, the defoamer can effectively play the effect of eliminating foam, if supplemented by a metering pump, the addition can also effectively control the amount of addition, to achieve the purpose of the most economical use of the defoamer (this method is suitable for large-scale production of foaming use).

3.Self-controlled addition: Any foaming solution may not be foaming all the time.

There is no exact rule on when to bubble and the size of the bubble amount. The addition of defoamer is to supplement consumption, and there is no need to add it when it is not foaming. Therefore, the self-controlled addition method can be adopted, and the defoamer can be added automatically according to the foaming aura.

4.Gap addition: If it is not continuous foaming and the foaming is not severe, the defoamer can be added at once or at regular intervals.

Because the amount of defoamer added is small, in order to disperse the defoamer evenly, it should be added in a place where the foaming liquid is turbulent. Many occasions can be added by hand. If the foaming is violent or for rapid foaming, you can spray it with a spray gun.

The method of using water treatment defoamer is as follows:

1. Add the stock solution directly, or add it in batches.

2. According to different systems, the addition amount of defoamer can be, and the addition amount is determined according to the specific situation of the customer.

3. You can do a small test before use to avoid abnormal situations.

1. Solid defoamer: hang it at the outlet of the wastewater treatment circulating pump or the outlet of the wastewater discharge, let it dissolve slowly, and prevent the foam from occurring, so as to achieve the defoaming effect.

2. Powder defoamer: The use of powder defoamer is relatively simple, when the foam of the biochemical treatment pool is large, the defoamer is sprinkled into it to make it defoam quickly, but the personnel must keep adding.

3. Liquid defoamer: liquid defoamer is generally added to the treated pool before discharge, but the effect is not good when aeration treatment, and it is better to dilute the spray when used, which can be diluted to 100-500 times, and added with a pump continuous spray, the effect is very obvious.

The use of consumer machines is bound to require a reasonable match, so the comparison method and amount of consumer machines must be well controlled.

Water treatment defoamers can be used directly dropwise or sprayed. The amount of addition is based on the total amount of product; 0·05～0·3%；The dilution needs to be used immediately, and after using it on the same day, the dilute multiple can be 1 10 times, and the diluent is: tap water; If it needs to be stored for a long time after dilution, add a stabilizer.

What are the methods of using water treatment defoamers? It's just to mix it with water and spray it.