A large amount of sludge is produced in the treatment process of industrial wastewater and domestic sewage. The moisture content in sludge reaches 95% to 99%. As long as the water in it is removed, the volume of the sludge will be greatly reduced, which is convenient for further treatment. However, since most of the sludge particles carry a certain charge, their dewatering performance is very poor. Therefore, how to improve the dewatering performance of sludge has become an important research topic. At present, the scale of sewage treatment plants in our country is expanding step by step. As the cost of sludge disposal accounts for approximately 50% of the sewage treatment cost, if the sludge is not properly disposed of, it will lead to secondary pollution. In response to the problem of difficult sludge dewatering, the company's independently developed sludge enhancer can perfectly solve the problem of difficult sludge dewatering. The sludge treated with the sludge enhancer can achieve the effect of deep sludge dewatering after being pressed by the plate and frame filter press, and the moisture content in the sludge can be effectively reduced to 35%-55%.

Sludge enhancer is a kind of chemical agent that can change the surface structure of sludge, reduce the solid surface load of sludge, lower the specific surface area of sludge, and destroy the structure of bacteria. Its main components include inorganic compounds, sludge surface structure modifiers, degreasing agents, cell wall disruptors, sludge surface treatment agents, sludge stripping agents, etc. Compared with traditional sludge dewatering agents such as polyacrylamide, polyaluminium chloride, ferric chloride and lime, sludge efficiency enhancers have many significant advantages. Traditional water treatment chemicals not only have a high usage cost but also seriously corrode sludge dewatering equipment and clog filter cloth. However, sludge enhancers can effectively avoid these problems and improve the working efficiency of dewatering equipment at the same time.

Sludge enhancers have the characteristics of low dosage and low cost. Based on the specific deep dewatering process of a certain sludge disposal, the company independently developed and produced a sludge enhancer, which was used in combination with a small amount of dewatering strengthening agent. The deep dewatering process of sludge was simulated in an indoor experiment, achieving remarkable results The dosage of the sludge efficiency enhancer is only 3-4%, and the cost of the sludge reduction agent generated is only 140 yuan per tDS, which is only 40% of the original cost of the sludge reduction agent. Moreover, the sludge reduction agent can quickly penetrate the sludge, has a fast reaction, and is simple and convenient to operate. The moisture content of the sludge cake after filtration is even lower, and both the moisture content and shear strength meet the landfill standards.

The sludge enhancer, in combination with the plate and frame sludge press, can reduce the moisture content of sludge from over 90% to 40% - 60%. The sludge prepared with sludge enhancer is injected into the filter chamber of the filter press at a pressure of about 1.0 mpa, which is conducive to the efficient filtration of free water in the sludge. After the sludge accumulates in the filter chamber and reaches the designed capacity of the filter press, it enters the high-pressure pressing stage. The final dryness of dewatered sludge by pressing is not only closely related to the effect of chemical conditioning modification, but also closely related to the filling degree of the filter press chamber, the rate of pressing pressure increase, and the retention time of pressing pressure. When achieving better results by using chemical conditioning sludge enhancers, high-pressure feeding and high-pressure pressing can shorten the time of the entire pressing section and improve production efficiency. The fully automatic unloading and reverse blowing and washing of the filter medium (filter cloth) are completed simultaneously, which not only reduces the labor intensity of the control workers but also improves the efficiency of the completed actions, maintaining the effect of the filter cloth in intercepting sludge and permeating water. In addition, sludge enhancers can also reduce the frequency of filter cloth replacement for mechanical equipment, saving the operating costs of enterprises.

Sludge enhancers are widely applicable to the dewatering and disposal of sludge in various industries such as daily life, printing and dyeing, papermaking, electroplating, chemical engineering, and leather. It also plays a significant role in the urban sludge reduction plan. The sludge from urban sewage treatment plants is difficult to dewater due to its strong affinity for water, which brings great trouble to the subsequent treatment and disposal of the sludge. The sludge enhancer independently developed by the company can change the surface structure of sludge, reduce the solid surface load of sludge, lower the specific surface area of sludge, and destroy the structure of bacteria. It can replace traditional water treatment chemicals such as lime, iron salts and aluminum salts. By using a variety of functional agents, the water-releasing agent can completely break the cell walls and release the water in the organic matter of the sludge, and the separation agent can make the sludge flocs aggregate, achieving a high degree of separation between sludge and water. The addition of a liquid framework greatly improves the subsequent dewatering treatment process, ensuring smooth water permeability, no clogging of filter materials, reducing equipment wear and maintenance, and significantly enhancing work efficiency. At the same time, a matching accelerator can also be pre-added for the subsequent sludge drying and disposal process, which greatly improves the efficiency of the subsequent drying and disposal.

Traditional water treatment agents require the addition of lime to achieve dewatering effects, while sludge enhancers do not need to add lime, will not corrode equipment, will not clog filter cloth, and are conducive to the subsequent incineration, brick-making and composting of sludge. By using the experimental formula, without adding lime, the pH of the sludge after conditioning with the sludge enhancer was 8.0. Due to the significant reduction in pH, it does not corrode equipment, which helps to reduce the release of ammonia from sludge. Moreover, there is no lime powder dust, and the working environment does not harm the health of employees. For sewage sludge treatment enterprises, the use of sludge enhancers can save costs and has only benefits and no harm.

Sludge enhancers, with their unique composition, outstanding performance and wide applicability, provide an efficient, economical and environmentally friendly solution to the problem of sludge dewatering, making sludge dewatering simpler. They have broad application prospects in the fields of sewage treatment and sludge disposal and are expected to become a powerful assistant for various industries to solve sludge problems, helping the environmental protection cause reach a new level.