PE/PA sintered filter technology leads a new revolution in water purification

In the context of the increasing global water resources crisis, Henan Xinxiang Lifelte Filter Co., LTD. (hereinafter referred to as "Lifelte"), with its self-developed PE/PA sintered filter technology, provides innovative solutions for industrial wastewater treatment, municipal water supply purification and rural drinking water safety. The technology is based on polyethylene (PE) and polyamide (PA) composite material as the core, through the precision sintering process to create an efficient filtration system, in the filtration accuracy, corrosion resistance and service life and other aspects of the traditional filter element limitations, become the industry benchmark.

Technical breakthrough: Micro revolution of PE/PA sintered filter element Traditional water filtration often uses single-layer material filter element, which has problems such as uneven pores, easy plugging and poor chemical tolerance. The PE/PA sintered filter developed by Liffert forms a three-dimensional network structure through the fusion and sintering of PE and PA polymer materials at high temperatures. Its core advantages are: micron filtration accuracy: the pore diameter formed during the sintering process can be accurately controlled within the range of 0.1-50 microns, effectively intercepting bacteria, suspended particles and heavy metal ions, and the filtration efficiency is more than 99.8%; Excellent chemical resistance: PA material gives the filter element strong acid and alkali corrosion resistance, suitable for complex industrial wastewater environment; Self-cleaning design: the surface of the filter element is specially treated to form a hydrophobic layer, which makes it difficult for pollutants to adhere. With the backwashing system, automatic cleaning can be achieved, and the service life is extended to more than 3 times that of the traditional filter element.

Application: "Clean water Guardian" Industrial wastewater treatment in multiple scenarios: Heavy metal purification case in a steel plant wastewater treatment project in Shanxi Province, Lifeldt PE/PA sintered filter system replaced the original ceramic filter equipment. Data show that the new system on lead, chromium and other heavy metal removal rate increased to 98.5%, water treatment from 300 tons per day to 500 tons, and filter replacement cycle extended from 3 months to 12 months, saving more than 60% maintenance costs for enterprises. Project leader Engineer Wang said: "The high stability of the sintered filter element completely solves the pain point of frequent shutdown maintenance."

Municipal water supply upgrade: Turbidity control in the South Water plant After the introduction of Liefert technology in a Guangdong water plant, the turbidity of raw water dropped from an average of 15NTU to less than 0.5NTU, meeting the standard of direct drinking water. The technical director of the plant pointed out that the PE/PA filter element's efficient interception of algae and microorganisms, combined with the ultraviolet disinfection system, has built a "double insurance" water quality safety system. After two years of operation, the failure rate of the system is only 0.3%, which significantly improves the stability of water supply. Rural drinking water renovation: A healthy water source for schools in mountainous areas in remote mountainous areas of Yunnan, Lifelter United Public Welfare Organization has installed micro-sintered filter water purification devices for several schools. The device can handle sediment and microbial pollution in surface water sources, and the daily water supply can reach 10 tons. Teacher Li, the principal, sighed: "The children no longer ask for leave because of diarrhea, and the filter element is maintained once a half year, which is much easier than the old equipment." Zhang Ming, professor of the China Institute of Water Resources Science, pointed out that Lifelte's technological innovation has filled the gap of domestic high-precision filter elements relying on imports: "The composite sintering of PE and PA not only improves the filtration performance, but also reduces the industry threshold through material cost optimization, which is expected to promote the water purification technology." Wang Li, a member of the water treatment technology review committee of the Ministry of Environmental Protection, stressed that the self-cleaning design of the filter element reduces the frequency of replacement and meets the waste emission reduction requirements under the goal of "carbon neutrality".

Li Jianguo, chairman of Lifelt, said that since its establishment in 2005, the company has always taken "making every drop of water clean" as its research and development purpose. At present, the company has obtained 12 filter technology patents, and the products cover 20 countries around the world. In the next three years, the company will invest 50 million yuan to expand the research and development center, focusing on the application of sintered filter elements in the field of seawater desalination and nuclear wastewater treatment. Conclusion: From industrial heavy pollution to rural spring, Liffert weaves a "clean water safety net" with PE/PA sintered filter technology. Under the dual engine of technological innovation and responsibility, this Henan enterprise is writing a new chapter in global water resources governance with a precision revolution in the micro world.