defoamer-antifoam

Do you know how to choose defoamers for Coal washing industry? The transformation and upgrading of the coal industry is the only way ... To promote industrial restructuring and transformation and upgrading, the core is coal washing. The main role of the coal washing process is to reduce coal transportation costs and increase coal utilization. However, there is usually a problem with coal washing, that is, the foam problem. These foams are mainly caused by impurities, surfactants, agitation, etc. mixed in raw coal mining. What is coal washing Through the impact of water flow, the raw coal with different composition and different specific gravity is separated into different grades, and the dust and waste stone are removed to reduce the ash and sulfur content, which is called coal washing. Coal washing is an indispensable link in coal processing. The coal after coal washing is called clean coal. In addition to the purpose of environmental protection, coal washing can also increase the uti...

How to use defoamer for Concrete water reducing agent?  The rapid development of the concrete industry has placed higher requirements on the admixtures used in concrete, especially the performance of water reducing agents. Polycarboxylic acid high-performance water reducer is the latest generation of water reducer. Its high water reduction, good dispersibility and plasticity retention allow it to rapidly expand the application field and gradually replace naphthalene and melamine and other high-efficiency water reducers. However, due to the molecular structure of polycarboxylic acid water reducing agent, more bubbles are introduced during concrete mixing, the size is not uniform, and the quality of concrete is affected. It is necessary to improve the workability of concrete by adding defoamers to meet the production needs. . The compounding with polycarboxylic acid water reducing agent requires good compatibility of defoamer and water reducing agent, little effect on water reduc...

Do you know how to control defoamer dosage in the WWTP in order to make defoamer work best? We know that sewage and wastewater need to be treated before it can be discharged daily. But there is a lot of bubbles in the wastewater without treatment, and these bubbles are difficult to eliminate. We must use wastewater treatment and defoamer before we can discharge. . However, how to use the defoamer and how much can be used to just eliminate all the bubbles, many people do not understand the principle, so the defoaming effect is not ideal. Before we understand the defoamer, we must first understand its function and principle! Anyone that can destabilize the foam can be used for defoaming. At present, there are many types of defoamers for wastewater treatment, which are mainly divided into complex system water treatment, high temperature water treatment, sewage treatment, general sewage treatment, and pulp mill water treatment. Use different defoamers depending on the nature of the wa...

Defoamer for industrial circulating water Industrial circulating water defoamer is a defoamer developed according to the characteristics of industrial circulating water foaming in the cooling water system. Industrial circulating water is also called cooling circulating water, and is mainly composed of a circulating pump, a control system, a check valve, and the like. However, when water treatment is carried out using industrial cycle machine technology, foam is easily generated due to agitation, entry of soluble gas, equipment, water quality, additives, and the like. If these foams are discharged without treatment, the impact on the ecological environment will be very large. Therefore, it is necessary to use industrial circulating water defoamer at this time. Industrial circulating water process      The industrial circulating water defoaming agent is a defoaming agent which is prepared by compounding a modified silicon polyether with a modified siloxane and us...

Why is there bubble in sewage treatment? What are the hazards of these bubbles? How to eliminate these bubbles? In the process of sewage treatment, I believe that everyone often encounters a large amount of foam in the biochemical pool, and if it is at rest, it will overflow from the pool, causing serious pollution of the external pool wall of the external equipment, which will deteriorate the operating conditions. Affected  the surrounding environment Type of foam in sewage treatment 1.    Initial bubble In the initial stage of aeration tank start, the sludge in the aeration tank is not suitable for the water quality of the sewage, and is not suitable for the growth environment, and foam is easily formed. As the sludge adapts to water quality, the foam will decrease. At the beginning of the aeration tank start-up, the sludge is relatively small, the sludge load is high, and foam is easily generated. After the amount of sludge increases, the foam will gradua...

How to distinguish the foam from sewage treatment aeration tank, and How to remove foam accordingly? Nowadays the sewage treatment technology of activated sludge method is deeply loved by urban sewage treatment plants, and the aeration tank is a key part of the sewage treatment of activated sludge method, but there is a common problem in the aeration tank - surface Covered by a lot of foam. The foam inside is generally divided into chemical foams and biological foams, which can cause oxygen to fail to be delivered in time, greatly reducing the oxygenation capacity. Not only will it cause adverse effects on microorganisms, but if it is serious, it will lead to poor quality of water and even cause the system to collapse. Adding appropriate amount of defoamer into the aeration tank in the treatment processing . The defoamer has alkali and acid resistance, fast defoaming, long-lasting foaming, high efficiency, and non-toxicity. No corrosion, no impact on the microbial growth of the a...

Industrial circulating water defoamer is a defoamer developed according to the characteristics of industrial circulating water foaming in the cooling water system. Industrial circulating water is also called cooling circulating water, and is mainly composed of a circulating pump, a control system, a check valve, and the like. However, when water treatment is carried out using industrial cycle machine technology, foam is easily generated due to agitation, entry of soluble gas, equipment, water quality, additives, and the like. If these foams are discharged without treatment, the impact on the ecological environment will be very large. Therefore, it is necessary to use industrial circulating water defoamer at this time.  Industrial circulating water process        The industrial circulating water defoaming agent is a defoaming agent which is prepared by compounding a modified silicon polyether with a modified siloxane and using a special process. It can so...

Landfill leachate defoamer Landfill leachate has complex water quality and contains a variety of toxic and harmful inorganic and organic substances. The concentration is much higher than that of municipal sewage. Leachate needs to be strictly treated. Generally, anaerobic biological filter (IAF) and aerated organisms are used. Combined filter (IBAF) is used as a biological treatment process. Specific types of waste infiltration treatment devices include traditional activated sludge method, stable pond, biological turntable, anaerobic fixed membrane bioreactor, etc. Generally, it will be filtered through several membranes to remove suspended matter and harmful molecules. During this process, a large number of air bubbles will be generated, which is not conducive to membrane filtration and the discharge of harmful gases, and will also cause the accumulation of suspended matter.let'slearn Landfill leachate defoamer. The following is the application case of our customer which nee...

Defoamer for industrial circulating water Industrial circulating water defoamer is a defoamer developed according to the characteristics of industrial circulating water foaming in the cooling water system. Industrial circulating water is also called cooling circulating water, and is mainly composed of a circulating pump, a control system, a check valve, and the like. However, when water treatment is carried out using industrial cycle machine technology, foam is easily generated due to agitation, entry of soluble gas, equipment, water quality, additives, and the like. If these foams are discharged without treatment, the impact on the ecological environment will be very large. Therefore, it is necessary to use industrial circulating water defoamer at this time. Industrial circulating water process      The industrial circulating water defoaming agent is a defoaming agent which is prepared by compounding a modified silicon polyether with a modified siloxane ...

In the production of wet-process phosphoric acid, when the content of carbonate and organic matter in the phosphate rock powder is high, a large amount of CO 2 gas is generated by chemical reaction with the acid. With the fierce progress of the acid hydrolysis process, CO 2 is continuously dispersed in the reaction liquid containing organic components, forming a stable foam layer on the surface of the slurry, and its volume can usually reach 5% to 10% of the volume of the reaction liquid. Production brings many adverse effects: first, it affects the dispersion and acid hydrolysis reaction of phosphate ore pulp, which reduces the production capacity; second, the foam layer not only reduces the equipment utilization rate, but also makes it difficult to observe the material level; third, it hinders the reaction process The evaporation of middle water and the removal of heat cause the reaction temperature of the extraction tank t...