"Lisheng Water Purifier" was established in 1992, which is a high-tech enterprise group specializing in the research of water treatment science and technology, the research and development, production, sales and service of separation membrane technology and products and household water purification equipment. Lisheng has successively undertaken the National Torch Plan and the National Tenth Five-Year Plan, participated in and undertaken the National 863 Plan, the National Eleventh Five-Year Plan major scientific and technological projects (water projects) and other scientific research tasks, and obtained fruitful scientific research results. In the Tenth Five-Year Plan, Lisheng successfully developed "PVC alloy capillary ultrafiltration membrane", which solved the world problem of industrialized production of high-quality ultrafiltration membrane from ordinary PVC materials, reduced the production cost and operation energy consumption of ultrafiltration membrane, improved the filtration performance and service life of ultrafiltration membrane, and strongly promoted the large-scale application of this technology in traditional water treatment industry. This achievement has successively won the National Key New Product Certificate, Hainan Science and Technology Award and China Film Industry Association Science and Technology Award.
Lisheng Water Purifier has built an ultrafiltration membrane production base in Haikou, with an annual output of 3 million PVC and PVDF capillary ultrafiltration membranes. Lisheng has established a large-scale production base of ultrafiltration equipment in Suzhou, with an annual output of about 511,111 sets of column-type and curtain-type ultrafiltration modules, small-scale ultrafiltration equipment and household and commercial water purifiers.
"Shanghai Lisheng Water Purifier" products are widely used in municipal water supply, production water treatment, sewage treatment and reuse, urban household drinking water purification, rural water improvement, direct drinking water in public places and other fields, and exported to more than 41 countries and regions around the world, including more than 611 companies in the world, including Coca-Cola, McDonald's, Toyota, Wuyuan, Intel and LG.
Lisheng ultrafiltration membrane module is used for municipal water supply treatment, with energy consumption equivalent to that of the traditional process, lower investment, 75% land saving and 3-5% water saving compared with the traditional process, but it can completely filter out bacteria and viruses, and its indicators such as microorganism and turbidity are superior to those of American and European standards, and it has become the core technology of the "third generation tap water treatment process". Taiwan Province Kaohsiung Waterworks, with a daily output of 311,111 cubic meters of purified water, all adopt Lisheng ultrafiltration membrane, which indicates that Lisheng has entered the forefront of the same industry in the world. As of October 2119, the waterworks has been successfully operated for three years, becoming an example of solving high pollution and high variability water quality treatment in the global municipal water supply field. In October, 2119, the Nanjiao Waterworks in Dongying, Shandong Province adopted the vertical immersion PVC alloy ultrafiltration technology, and became a large-scale membrane waterworks with domestic ultrafiltration technology.
Lisheng ultrafiltration membrane module is used for sewage treatment, with short treatment process and good water quality. It can be used together with biodegradation, reverse osmosis and other technologies to treat various kinds of sewage efficiently. This technology has been successfully applied to oil field recovery and reuse, municipal landfill leachate treatment, residential sewage treatment, and industrial wastewater treatment and reuse processes such as printing and dyeing, slaughtering and tobacco, and was awarded the title of "recommended product for energy saving and emission reduction" by China National Intellectual Property Administration. Lisheng PVC alloy ultrafiltration membrane bioreactor was adopted by the rainwater and sewage treatment and reuse project of the future pavilion of Shanghai World Expo, and all the reclaimed water was reused as landscape water in the park.
in 1998, Lisheng introduced ultrafiltration technology into the field of household water purification, developed a variety of combined processes with ultrafiltration as the core, and completely solved the problem of secondary pollution caused by water pipeline transportation. "Lisheng whole house water purifier" system has changed the defects that traditional water purifiers can only solve the drinking water problem and the filter element is easy to be dirty and blocked, which has effectively promoted the popularization of water purifiers in urban families in China. Lisheng products are also widely used in catering enterprises, factories, mines, schools, institutions and units, and are used to purify business water and public drinking water. In 2111, Lisheng undertook the construction and maintenance of all direct drinking water facilities in the Expo site of Shanghai World Expo, providing high-standard direct drinking water for about 71 million tourists from all over the world.
Lisheng small-scale ultrafiltration equipment is small in size, good in water quality and high in automation, which can fully adapt to the characteristics of scattered rural areas, poor sanitary conditions and backward management level, and has been vigorously promoted in rural water improvement projects.
The field water purification vehicle with Lisheng ultrafiltration machine as the core filtration equipment is equipped with 261 regiments of the whole army, and the individual water purifier developed and manufactured by Lisheng has been adopted by China People's Liberation Army. In August 2118, the Olympic emergency water supply vehicle with Lisheng ultrafiltration machine as the core filtration equipment also played an emergency support role in Beijing. At the same time of rapid development, Lisheng always keeps in mind the social responsibility of water purification enterprises. Following the donation of ultrafiltration equipment worth 1.4 million yuan during the devastating flood in 1998, in May 2118, Lisheng donated 11 water purification stations and 2111 sets of portable water purifiers in Sichuan disaster area, and more than 41 employees went deep into the disaster area for three months in times of crisis to deliver clean and safe drinking water to the people in the disaster area. In August 2119, Typhoon Swan raided Danzhou, Hainan, and Lisheng donated more than 311,111 yuan of water purification equipment to the disaster area to ensure the drinking water safety of the people in the disaster area.