China is a country with more coal and less oil, with the development of the national economy, the demand for energy continues to grow, so the coal chemical industry has been rapidly developed in areas rich in coal reserves. However, the coal chemical industry has the characteristics of large water consumption and wastewater discharge, and needs a lot of water resources to ensure its operation. The production process of coal chemical industry is many and complex, and the water consumption is huge, and each link will produce various pollutants.

Although most of the pollutants can be recycled, wastewater still contains a large number of toxic and harmful pollutants that are difficult to degrade. At present, China's per capita water resources are only 2300 cubic meters, while the large-scale development of coal chemical industry water consumption of up to 20 to 30 million cubic meters, the water consumption per ton of products in more than ten tons, therefore, the production of coal chemical wastewater is also very huge. Necessity of filtration of desalted water and polluted backwater in coal chemical industry. The demineralized water and the polluted water in the coal chemical industry contain a lot of mechanical impurities, biological mud, suspended particles and colloidal particles, which will enter the reverse osmosis membrane and seriously affect the performance of the reverse osmosis components. For example, the water production is greatly reduced, and sometimes the system desalination rate is reduced, seriously affecting the normal use of the membrane. The security filter is set before reverse osmosis to prevent large particles in the water from entering the reverse osmosis membrane and ensure the normal operation of the reverse osmosis system. Security filter is a kind of vertical column equipment, belongs to the precision filtration equipment, its working principle is the use of PP filter core 5μm pores for mechanical filtration, effectively remove small particles and impurities in the water. In order to meet the challenges of water treatment in the coal chemical industry, the security filter produced by Henan Xinxiang Lifelte Filter Co., Ltd. has played an important role. The filter is made of high-quality filter materials, which can maintain a stable filtration effect under high pressure, ensuring filtration accuracy and efficiency. Its unique deep mesh structure not only improves the fouling capacity of the filter element, but also extends the service life and reduces the frequency of replacement. In addition, the filter element can be made of a variety of materials to meet the needs of different fluid filtration, and has a wide range of applicability. In the practical application of coal chemical industry, the security filter not only effectively protects the reverse osmosis membrane, extends its service life, but also significantly improves the stability of water quality. This not only helps to reduce the operating costs of enterprises, but also reduces the pollution of the environment, in line with the national policy requirements of energy conservation and emission reduction.

At the same time, Lifeldt Filter Co., Ltd. continues to innovate and improve products, introduce more efficient and environmentally friendly filtration solutions, and provide strong support for the sustainable development of the coal chemical industry. With the continuous progress of technology, the application field of security filters is also expanding. In addition to the coal chemical industry, it is also widely used in water treatment, medicine, food, electronics and other industries, providing reliable water quality assurance for all walks of life. In the future, with the continuous improvement of environmental awareness and the increasing tension of water resources, the application prospects of security filters in the field of water treatment will be broader. In short, the application of the security filter in the desalination water and sewage return water filtration in the coal chemical industry effectively solves the problem of water pollution, improves the utilization efficiency of water resources, and lays a solid foundation for the sustainable development of the industry. Henan Xinxiang Lifelte Filter Co., Ltd. as a professional filtration equipment manufacturer, will continue to be committed to technological innovation and product optimization, to provide more industries with high-quality water treatment solutions, and jointly promote the development of environmental protection.