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The existing layout of the sewage treatment system suffers from short sewage treatment processes, small footprint and short sewage retention time. To ensure the stable operation of the sewage treatment system as well as the discharge of effluent to meet the standards, the operators of the sewage system need to operate carefully in accordance with changes in the water quality at the source. Negative impact of abnormal discharges at source on sewage treatment The abnormal discharge of wastewater from the source into the wastewater treatment will have adverse effects on site, microbiology and discharge water quality as follows: Direct impacts on site Chromaticity The chromaticity is mainly caused by the discharge of dilute black liquor from the pulp shop and the dyestuff discharged into the wastewater from the paper shop when producing coloured paper products, in addition to chemicals such as paint and modified soap clay used in the paper shop. These coloured waters enter the wastewater treatment and stain the water in all the structures, resulting in excess colour in the effluent when the colour treatment capacity of the system is exceeded.   Foam Foam comes from the discharge of dilute black liquor from the pulping plant, the discharge of deinking agent from the deinking pulp plant and the surfactants used in the paper plant. The foam does not have a direct impact on the effluent index, but excessive foam can fly around when the wind blows and affect the site environment. Foam entrained substances can accelerate the corrosion of metal rails. Most seriously, when there is a lot of foam, it tends to lead to improper filtration of the slope screen, resulting in a reduction in the amount of effluent treated. Solid waste The solid waste mainly comes from reed residue discharged from reed pulp, sawdust lost from chemical wood pulp or chemical mechanical pulp, and residual pulp emptied when the paper workshop was changed to production, as well as felts and nets during the production and maintenance process. These solid wastes enter the sewage treatment system through the sewer, damage grilles, valves, lift pumps and other facilities, and in serious cases cause sewage treatment to shut down.   Sticky net The sticky net is mainly due to the high viscosity of the incoming water. Its source is mainly the remaining PAM when the paper workshop is changing production, the abnormal discharge of poorly dissolved PAM, and the PAM leaking from the pipeline/valve. In addition, anti-lint and shedding powders, wet strength agents, retention aids, filler aids, organic particles, dispersants, etc. used in the papermaking process will all increase the viscosity of incoming water. After the net is pasted, the sewage overflows from the surface of the inclined net to the ground, making the site unsightly; it flows into the rainwater ditch, causing suspicion of illegal sewage discharge; the sewage flows into the main outlet, causing COD, suspended solids and o...

  Market Current Situation The defoaming agent is a common chemical agent with wide application. In industrial production, bubbles on the liquid surface will cause problems in the production process, such as oil bubbles, foam overflow, etc. Therefore, the demand for defoaming agents has also been widely used in the industrial field. In daily life, defoaming agents are also widely used in kitchens, bathrooms, laundry rooms, etc. It can be said that defoaming agents have become one of the essential cleaning products in people's lives. At present, the competition in the defoaming agent market is fierce, with many brands on the market and prices also fluctuating to a certain extent. When consumers choose products, they must not only consider the price factor, but also see the product's effectiveness and safety.   Market Prospect As people's requirements for cleanliness and hygiene become higher and higher, the market demand for defoaming agents is rising. Consumers pay more and more attention to the cleaning effect and safety of use of products, and the demand for high-quality defoaming agent products is increasing day by day. Therefore, the market prospects for defoaming agents with both good quality and effect are broad. The defoaming agent market is expected to grow steadily over the next few years. At the same time, driven by the increasing demand for cleaning and the trend of consumption upgrades, the defoaming agent industry is also developing in a greener and environmentally friendly direction. More companies are beginning to pay attention to the environmental protection and sustainability of products, and launch safer and more environmentally friendly defoaming agent products. This environmentally friendly development trend will bring new market opportunities to the defoaming agent industry.   Investment Advice Defoaming agents are a necessity and the market is highly saturated, so the demand for defoaming agent products with good quality and effectiveness is also increasing. If you are an investor, you may consider investing in the field of defoaming agents and pay attention to the performance and future development trends of high-quality defoaming agent brands. Before investing, you need to fully understand the market competition, brand advantages and product research and development innovation. At the same time, it is necessary to pay attention to risk control and choose a sound investment strategy. If you can correctly grasp the market trends and investment opportunities, I believe you can get good returns in the defoamer market.    

Sewage treatment polysiloxane antifoam agent - polysiloxane antifoam agent is generally composed of polydimethylsiloxane and silicon dioxide 2 key components of the chemical compound moderate mutual cooperation and become, to polydimethylsiloxane as the plate of the antifoam agent is eliminating the antifoam management system in the category of idealised antifoam agent, that is to say, because of its insoluble in water, it is difficult to emulsions, polydimethylsiloxane Dimethicone has lower surface properties than carbon chain hydrocarbons, and thus has a lower interfacial tension than the surface activators generally used in the textile industry. Anti-foaming agent simple polydimethylsiloxane foam inhibition characteristics of poor and slow, anti-foaming effect must be silica objects to enhance the silica objects by the methyl silicone oil to the foam gas - water liquid surface and into the bubble liquid film because of its hydrophobic solubility, and surface activator polyurethane foaming liquid contact with polyurethane foaming liquid and then drive polyurethane foaming liquid from the surface of the hydrophobic objects of the liquid to drain, resulting in the rapid discharge of part of the foam liquid and cause cracking, so that, because of the surface activator polyurethane foaming liquid, the polyurethane foaming liquid is not liquid, but the polyurethane foaming liquid is not liquid. In that case, because of the synergistic effect, the two constituent chemicals cause excellent anti-foaming practical effect. Polysiloxane defoamer has been used in many industries because of its high quality defoaming and anti-foaming efficiency and other advantages, especially in the production and processing of woolen fabric dyeing and finishing, the trend of development is especially rapid, scientific research has found that silicone glycol antifoam agent with polydimethylsiloxane and high-pressure polyethylene pre-polymer as a plate has idealised defoaming and anti-foaming practical effects in the processing of spray dyeing and other woolen fabrics because of its unique melting characteristics. The actual effect of foam. First dilute the liquid with tap water 1:30 times after dilution, plus the use of 0.5% -0.6%, the appropriate antifoam agent can reasonably prevent and remove foam, do not apply too much. As far as possible before the application of mixing, and tap water or thickening water first need to add the defoamer dilution of the aqueous solution of the defoamer after the application. Antifoaming agent should be added before the polyurethane foaming liquid is not polyurethane foaming, so that it can be more reasonable to prevent the foam caused by and remove the foam. Antifoam agent has oil-soluble and water-soluble points, different antifoam agent used in different manufacturing industries. The available PH range of defoamer. Strong alkali and strong acid natural environments are more stringent for defoamers, which must be indicated with the defo...

Polycarboxylate water-reducing agent is a high-efficiency water-reducing agent that also has the function of dispersing cement. It is widely used in precast and cast-in-place concrete projects in many fields such as high-speed railways, passenger dedicated lines, and construction, including reinforced concrete and prestressed concrete. During the concrete production process, polycarboxylate water-reducing agents can easily cause foaming problems due to their high gas content and the presence of a large amount of surfactants. Therefore, a small amount of defoaming agent needs to be added to eliminate foam problems and thereby improve product quality. By adding a defoaming agent, it can not only eliminate excess gas in the concrete and improve the appearance of the concrete, but also reduce the gas content of the polycarboxylate water-reducing agent, improve the pore structure and tightness of the concrete, and make the concrete shape more compact and bright.     Precautions for polycarboxylate water reducing agent and defoaming agent：   1. In the process of preparing concrete, the addition of defoaming agent can help reduce the air content of polycarboxylate water-reducing agent, but it may cause the concrete to be too viscous. It is recommended to introduce an appropriate amount of air-entraining agent first, and then add defoaming agent.   2. Defoaming agent has good compatibility and dispersion effect with water and other surfactants, but it is recommended not to store it for too long, or to continue stirring during storage. Excessive storage period or failure to stir in time will lead to separation.   3. In order to avoid the influence of alkaline substances, various surfactants added during the production process have corresponding alkaline characteristics. It is recommended to choose a defoaming agent with long-lasting defoaming and anti-foaming properties, high temperature resistance, acid resistance, alkali resistance and other properties.

With the continuous development of science and technology and the continuous expansion of global industries, defoaming agents are gradually emerging as chemicals widely used in many industries. The function of defoaming agents is to inhibit the formation and stability of foam in liquids, thereby improving production efficiency and quality. This article will explore the wide range of applications of defoamers in different industries and the positive impact they have on these industries.   1. Food and Beverage Industry The food and beverage industry is one of the main application areas for defoaming agents. During food processing, many foods and beverages generate foam, which can harm the production process and product quality. The introduction of defoaming agents can effectively reduce the generation of foam, improve production efficiency, and ensure product quality and consistency. For example, they are widely used in beer production to control the foam produced during fermentation and ensure the quality of beer.     2. Pharmaceutical industry The pharmaceutical industry is another area where defoaming agents are widely used. In pharmaceutical production, the mixing and stirring process of drugs may produce large amounts of foam, which may interfere with the drug production process and reduce the purity of the drug. The application of defoaming agents in the pharmaceutical process helps maintain the stability of the production process, ensure the quality of the drug, and reduce foam interference during the production process.   3. Chemical Industry In chemical production, defoaming agents are widely used in various processes, especially in reactors. Chemical reactions are often accompanied by the release of gas, which results in foaming. The addition of a defoaming agent can effectively reduce the generation of foam, improve the efficiency of the reactor, and reduce instability factors caused by foam, thereby improving the quality of the product.   4. Papermaking and Textile Industry In the paper and textile industries, foam generation is often a problem during the production process. In the papermaking process, air bubbles in the pulp can cause paper quality to deteriorate, while in the textile industry, foam can interfere with dyeing and coating processes. Applying defoaming agents helps solve these problems and improves the quality of paper and textiles.     5. Oil and natural gas industry During oil and gas extraction, the release of gas from liquids is often accompanied by the generation of foam. This can lead to fluid flow instability and reduce mining efficiency. The introduction of defoaming agents can effectively reduce the generation of foam, improve the efficiency of oil and natural gas production, and reduce the waste of energy resources.   6. Environmental protection and water treatment In the fields of environmental protection and water treatment, the application of defoaming agents is also in...

Self-levelling mortar has been increasingly recognised as a floor levelling material. Self-levelling mortar is mainly made of adhesive, sand, filler, superplasticiser, retarder, coagulant promoter, defoamer and other more than 10 kinds of materials pre-mixed by the factory, which has good stability. Self-levelling mortar has high requirements for flow, apparent state, shrinkage and strength, which requires us to select all raw materials used for self-levelling mortar to meet the performance requirements of the material. Defoamers have different chemical structures and properties, different foam systems, different foam suppression, foam breaking stability, foam breaking rate, etc.. Defoamer used in the mortar, at the same time to be chemically inert, as far as possible, does not affect the other properties of the mortar. Defoamer on the flow of self-levelling mortar effect After adding defoamer in cement-based self-levelling mortar system, it can make self-levelling mortar flow degree increase, change the apparent state of the mortar after hardening, increase the wet density of the mortar, so as to make the self-levelling mortar hardened compressive and flexural strength level increase. Adding defoamer helps flow, but there are differences in the suitability of different types of defoamer and the whole mortar system, and there are also differences in the effect of flow. The effect of defoamer on the wet density of self-levelling mortar The addition of defoamer on the self-levelling mortar wet density growth is very fast. However, different types of defoamer on self-levelling mortar wet density changes slightly different, so different types of defoamer applied to the same self-levelling mortar system defoaming ability there are differences. Appropriate prolongation of the resting time, self-levelling mortar wet density will increase slightly, so self-levelling mortar mixing, can be appropriately prolonged after the resting time, in order to enhance the anti-foaming ability of self-levelling mortar. The effect of defoamer on the apparent state of self-levelling mortar Add defoamer self-levelling mortar after hardening the apparent state is changed. After mixing the self-levelling mortar, the appropriate prolongation of the wet mortar standing time can improve the defoaming ability of the self-levelling mortar, so that the apparent state of the hardened self-levelling mortar has been further changed, so that the surface of the mortar is free of small pinholes, and has a better homogeneity. Influence of defoamer on the strength of self-levelling mortar The compressive and flexural strength of self-levelling mortar increases with the addition of defoamer. The flexural strength of self-levelling mortar is increased from F4 strength grade to F6 strength grade or above, and the compressive strength is increased from less than C16 strength grade to C20 strength grade or above. However, there are differences in the effects of different types of defoamers on...