Can food additive type defoamers be used for sewage treatment?

It is recommended to use defoamers in a targeted manner, and food additive defoamers may not have a very good defoaming effect in sewage treatment.

The ingredients are not the same, and the defoaming effect is not good.

Defoamers, also known as defoamers, are food additives that reduce surface tension during food processing, inhibit foam production or eliminate foam that has already been produced. There are 7 kinds of defoamers licensed for use in China, including emulsified silicone oil, high-carbon alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether and polyoxypropylene polyoxyethyleneglycerol ether, and polydimethylsiloxane.

The sewage treatment defoamer produced by defoamer is a high-efficiency defoamer made of modified silicon polyether and modified siloxane, with non-toxic emulsifier, dispersant and stabilizer, and refined by special process.

The characteristics are: alkali and acid resistance, fast defoaming speed, long foam inhibition time, high efficiency, and non-toxic, non-corrosive, no defects. Moreover, food additive defoamer** is more expensive, and sewage treatment defoamer** is cheaper.

Sewage treatment defoamer, SXP-103, how to use: It is recommended to dilute 1-3 times with water or solvent (foaming solution can also be used) before use; It can be added in the place where the foam is concentrated, and it can also be added directly at the mouth of the pool with good sewage flow. The recommended dosage is 30-300ppm.

Yes, but it's best to filter the first pass with physical methods to mitigate the chemical effects.

Yes, food grade is just high purity.

In the biochemical treatment of wastewater, due to the digestion of organic matter by various fungi, a large number of basal hail bubbles will be produced at the same time, which will float on the water surface to form foam.

Anaerobic pools, anoxic pools, and aerobic pools will have this situation, and more foam will affect the biochemical reaction speed in the pool, and in severe cases, it will overflow the mouth of the box. Therefore, it is necessary to use a defoamer dosing treatment.

There are many brands of defoamers sold on the market, and the operating procedures are mainly implemented according to the product description.

The effect is better when using an automatic medicine machine. Dosing procedure, dosing time, powder adding water, stirring and other functions can be automatically controlled.

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It is recommended to dilute 1-3 times with water or solvent (foaming liquid can also be used) before use;

In the place where the foam is concentrated, it can be added dropwise, flowed or sprayed, and it can also be added directly at the mouth of the pool where the sewage flows and the trembling beam is good. The recommended dosage is 30-300ppm.

When using the antifoam agent, it is necessary to fully stir and know the evenness, first make a reasonable dilution, and then stir until it is uniform. After the on-demand ratio is completed, it needs to be used up within a short period of time. It is also necessary to protect the defoamer from frost and high temperatures, as the defoamer can affect performance under frost and high temperature conditions.

The sewage treatment defoamer can be diluted proportionally when used, and then it can be directly added to the foaming system, or it can be continuously dripped or sprayed into the foaming system by using a metering pump.

Add defoamer and add it to water in proportion, the defoamer is evenly dispersed, the defoaming is relatively fast, and it can play a stable defoaming and antifoaming effect in the water system.

Generally, ten times diluted and sprinkled directly on the surface of the water.

For some foam problems, we usually use defoamers to solve, defoamers have a good defoaming and antifoaming effect, but also can inhibit its secondary foaming, so what are the ways to use defoamers?

1. The first continuous base game is added and used.

1. Cancel a certain amount of defoamer and mix it into the dilution tank according to the amount required by the system.

2. Stir gently at room temperature to evenly disperse the dilution in water to obtain the diluent.

3. The diluted defoamer is continuously added or dropwise added to the foaming system to control the foam.

Note: Defoamer can be added directly to the system that does not allow dilution, and the defoaming and foam inhibition effect will not be affected.

Second, the second option is to join intermittently:

1. Cancel a certain amount of defoamer and dilute it in advance.

2. Stir gently at room temperature to make it evenly dispersed in water to obtain the diluent.

3. When foam is produced in the system, take an appropriate amount of dilution and add it to the system at one time to control the foam. When the foam is produced again, an appropriate amount of dilution is added to the system at one time to control the foam. This type is generally for paint-type foams and is generally added at the beginning and middle of grinding.

Note: Defoamer can be added directly to the system that does not allow dilution, and the defoaming and foam inhibition effect will not be affected.

3. The third one-time addition:

For closed systems (or additives with defoamers), a one-time addition of defoamer is required to control foaming. Take the right amount of defoamer and add it to your system one at a time to control foaming.

It can be added directly in water, or used in batches or diluted.

A wastewater treatment defoamer is a chemical that can be used to reduce or eliminate foam generated during the wastewater treatment process. Here are the steps to use a sewage treatment defoamer:

1.First, according to the instructions for use provided by the manufacturer, determine the required dosage of defoaming.

2.Operate safely and wear personal protective equipment such as gloves and goggles.

3.The defoamer is slowly added to the wastewater treatment system, either directly or by using equipment such as a spat pump.

4.After the defoamer is added, the effluent should be stirred appropriately to help the defoamer disperse quickly and evenly.

5.Monitor the defoaming effect and gradually adjust the amount of defoamer as needed. Peaceful.

6.After use, the remaining defoamer should be stored in a dry and ventilated place away from sun, rain or moisture.

Please note that there are different ways to use and recommended dosages for different types of wastewater treatment defoamers, so you should read the product instructions carefully and follow the instructions before use to ensure safe and effective use of the defoamer.

<> sewage treatment defoamer can be divided into oil-based synthetic defoamer, non-silicone defoamer, active ingredient alcohol, and fatty acid complex. The sewage treatment defoamer is specially designed for the water treatment process, with fast defoaming speed and long-lasting bubble suppression hall, and is used in pharmaceutical, papermaking, leather, printing and dyeing, urban sewage biological treatment process Fuhui and chemical cleaning and other multi-species foaming systems. The sewage treatment defoamer uses an environmentally friendly formula, and the product is non-toxic and harmless, and does not affect the reproduction of bacteria.

It can also be used for defoaming oil drilling fluid mud system.

Industrial wastewater treatment technology includes a variety of methods and equipment, the following are some of the most common methods and equipment:

1.Biological treatment technology: activated sludge method, biofilm method, constructed wetland, etc., through the aerobic or anaerobic process, heterotrophic or autotrophic microorganisms to degrade and remove organic matter.

2.Physical and chemical treatment technology: oxidation, reduction, precipitation, adsorption and other methods are used to achieve the purpose of removing pollutants in industrial wastewater by chemical or physical means.

3.Membrane technology: microfiltration, ultrafiltration, nanofiltration and other methods are used to selectively intercept and separate pollutants through the pore size and characteristics of the membrane.

4.Other physical and chemical treatment technologies: electrochemical technology, ozone oxidation and advanced oxidation technology, etc.

Defoamers mainly solve the problems of difficult removal and hygienic safety of a large amount of foam generated in wastewater. The main function of the defoamer is to destabilize the foam and make it separate or dissolve in water for subsequent treatment. Therefore, defoamers can be used to remove foam when treating foam problems in industrial wastewater.

However, defoamers do not remove contaminants from industrial wastewater, so defoamers are not a substitute for process technology.

In short, there are many industrial wastewater treatment technologies, and different methods and equipment have their applicable scenarios. The defoamer can only solve the problem of slippery foam generated in sewage, and is not all measures to treat industrial sewage. When it is used, it should be selected and consumed according to the actual situation.

First, in the commissioning stage.

A large amount of foam will be produced in the early stage of activated sludge culture, because the activated sludge is not formed, and the surfactant in the sewage cannot be degraded, and it is easy to produce a large amount of foam, but when the activated sludge increases, the adsorption and degradation power have increased, and the foam will gradually disappear.

Second, the operation stage.

When the colonies in the sludge die, the treatment capacity of the activated sludge will be reduced, and the surfactants in the sewage will not be degraded, and a large amount of foam will be generated. Although nitrification also produces a small number of bubbles, the main effect is that it causes the sewage to become cloudy.

3. At runtime.

The filamentous bacteria and actinomycetes growing in the water body are also prone to produce a large amount of foam, and most of this kind of foam is yellow-brown, which is a kind of foam that is more difficult to handle.

There are many types of effluent defoamers, depending on the industry you are working in, and the type of effluent. It is generally used in industrial sewage, printing plant sewage, power plant desulfurization sewage, daily chemical and other industries in the recycling sewage.

Defoaming and foaming of municipal wastewater, domestic sewage, general industrial sewage, washing sewage, cleaning wastewater, electroplating wastewater, aquaculture sewage, aeration tank sewage, sewage treatment plant and other sewage.

Sewage defoamer is generally used for defoaming in sewage treatment defoaming, industrial sewage, power plant desulfurization and other industries.

The main function of industrial sewage defoamer is to eliminate or eliminate the surface foam of the waste water shirt hidden in the process of industrial treatment. The principle is mainly to reduce the surface tension of the foaming surface, so as to achieve the effect of defoaming and foam suppression.

There are types of sewage treatment defoamers, such as silica and surfactants. Among them, silicone resin defoamer, also known as Xiaoyin, is an emulsion sock type defoamer, and the method used is to emulsify the silicone resin with an emulsifier and disperse it in water and put it in wastewater. Silica powder is another silicon defoamer that has a good effect on foam elimination.

Surfactant defoamer is actually an emulsifier, which uses the dispersion of surfactant to keep the foam-forming substance in a stable emulsified state in water to avoid foaming.

1. What is the defoamer for sewage treatment?

The sewage treatment defoamer is synthesized with modified silicone polyester and modified siloxane, which has good foam inhibition and shear resistance. Using environmentally friendly formula dust excitation, the product is non-toxic and harmless, and does not affect the reproduction of bacteria. Moreover, the imported equipment and technology are imported to produce non-silicon defoamers in the hydrophilic medium system, which does not contain silicone components at all, so the equipment is easy to clean without causing silicon spots to remain on the paper wall.

Importantly, water-based adhesives, water-based inks, and water-based mineral oils do not cause shrinkage in addition to foam.

2. Use. The above substances are widely used in various water treatment and packaging systems such as urban sewage, oxidation ponds, anaerobic ponds, sewer sewage treatment, industrial wastewater treatment, various circulating wastewater treatment, various circulating industrial wastewater, chemical sewage treatment, and urban sewage biological treatment systems. It can quickly remove the foam generated by clay, water treatment agent, fungicide, etc., and does not clog the net in circulating water treatment.

In the process of sewage treatment, the appearance of air bubbles will affect the reproduction of aquatic organisms and the operation of the treatment process. The defoamer for sewage treatment has a good defoaming speed and can continuously inhibit foam, and the choice of which defoamer should be decided according to the actual situation of the sewage treatment project.