Pure water system by the LISCO company and the foreign company **** with the creation of products, mainly to LISCO's core technology
Ultra-filtration membrane and RO (reverse osmosis) combined with each other, you can extend the life of the RO water, is the life of the previous pure water system and water saving 3 times, from the pure water system filtered water can be 100% sterile, salt-free, no minerals and other harmful substances, the filtered water system is mainly used in hard water and heavy metals exceeding the standard zone, pharmaceutical water, boiler make-up water, pure water production and other fields. Harmful substances, pure water system is mainly used in hard water and heavy metal overload zone, medical water, boiler make-up water, pure water production and other fields, the filtered water quality is not suitable for long-term human and animal drinking.
RO (Reverse Osmosis) reverse osmosis technology is the use of pressure gauge difference as the driving force of the membrane separation and filtration technology, originated in the United States in the 1960s aerospace science and technology research, and then gradually transformed into civilian use, and now has been widely used in scientific research, pharmaceuticals, food, beverages, seawater desalination and other fields.
RO reverse osmosis membrane pore size is as small as nanometer (1 nm = 10-9 meters), under a certain pressure, H2O molecules can pass through the RO membrane, while inorganic salts in the source water, heavy metal ions, organics, colloids, bacteria, viruses, and other impurities can not pass through the RO membrane, so that can pass through the pure water and can not pass through the concentration of the water is strictly differentiated.
General tap water after RO membrane filtration of pure water conductivity 5μs/cm (RO membrane filtration of water conductivity = inlet water conductivity × desalination rate, the general import of reverse osmosis membrane desalination rate can reach more than 99%, 5 years of operation can guarantee more than 97%. Higher requirements for the conductivity of the water, you can use 2-stage reverse osmosis, and then after a simple treatment, the water conductivity can be less than 1μs/cm), in line with the national laboratory three water standards. And then through the atomic ion exchange column cycle filtration, the water resistivity can reach 18.2M .cm, more than the national laboratory water standards (GB 6682-92).
The main difficulty at present is the development of inexpensive, stable, long-term pressure without damage to the reverse osmosis membrane . China from the beginning of the 21st century to master the independent reverse osmosis membrane production technology, in the country's strong support, the plan is included in the State Planning Commission of high-tech industrialization of key development of special projects by the State Oceanic Administration under the Hangzhou Water Treatment Research and Development Center's subsidiaries - Hangzhou Beiduosheng Membrane Products Co. At present, 95% of the reverse osmosis membrane market for the imported membrane, domestic membrane only about 5% of the market, China's reverse osmosis technology has a long way to go.
Drinking range
Space water, pure water, distilled water and other preparations; wine manufacturing and degradation of water; medicine, electronics and other industries in the pre-preparation of water; chemical process of concentration, separation, purification and water preparation; boiler make-up water desalination of water soft water; seawater, brackish water desalination; paper making, electroplating, printing and dyeing and other industrial water and wastewater treatment.
The membrane separation technology represented by polymer separation membrane as a new, efficient fluid separation unit operation technology, 30 years has made remarkable rapid development, has been widely used in various fields of the national economy.