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The role of hollow fiber ultrafiltration membrane technology in water treatment
Abroad, hollow-fiber ultrafiltration membranes are primarily used in drinking water treatment, whereas in China, they are mainly employed for wastewater reuse in industrial production sectors, serving as a pre-treatment step for reverse osmosis. Currently, in China's water industry market, hollow-fiber ultrafiltration membrane technology has already seen extensive application in industries such as power engineering, steel manufacturing, and chemical processing, particularly in the treatment of industrial wastewater.
Abroad, hollow-fiber ultrafiltration membranes are primarily used in drinking water treatment, whereas in China, they are mainly employed for wastewater reuse in industrial production sectors, serving as a pre-treatment step for reverse osmosis. Currently, in China's water industry market, hollow-fiber ultrafiltration membrane technology has already seen extensive application in industries such as power engineering, steel manufacturing, and chemical processing, particularly in the treatment of industrial wastewater.
2020-05-22
Abroad, Hollow-fiber ultrafiltration membrane Primarily used in drinking water treatment, it is also widely employed in China for wastewater reuse in industrial production processes, serving as a pre-treatment step for reverse osmosis. Currently, in China's water industry market, Hollow-fiber ultrafiltration membrane Technology has already seen extensive application in industries such as power engineering, steel production, and chemical plants—particularly in the field of chemical wastewater treatment. Below, let’s take a closer look at this… Hollow-fiber ultrafiltration membrane The role technology plays in water treatment.
1. Operating pressure control: The ultrafiltration membrane is leaking clean water at the pump's output flow rate, with the operating pressure ranging between 0.55 and 0.65 MPa—exceeding the designed operational pressure of the ultrafiltration system.
2. Cease Operations and Maintenance: Before shutting down the system software, first open the return drainage pipe valve to stop the return pump, allowing the system pressure to gradually decrease. Then, perform a point-by-point purge for each group, followed by a water-air backwash before safely withdrawing from operation.
3. Anti-washing. Hollow-fiber ultrafiltration membrane Backwashing is performed using a single-air-and-water pulse cleaning method, equipped with a backwash pump unit and one air compressor. The backwashing cycle occurs every 2 hours: compressed air is introduced into the system via a single pulse, followed by activating the backwash pump to flush the system vigorously with high-flow treated water, which is then discharged from the leakage side.
4. Hollow-fiber ultrafiltration membrane Temperature control: Operating temperatures are typically maintained between 15°C and 30°C. In winter, surface-type heat exchangers are used to preheat the feed water. Temperature-controlled measurement points regulate the steam flow, preventing fluctuations in pressure and water flow during ultrafiltration membrane operation and softener processes that could overheat the feed water, potentially damaging the membrane and its components.
Hollow-fiber ultrafiltration membrane It employs the fundamental principle of membrane filtration for separation, offering flexibility in retaining organic compounds with molecular weights ranging from 10,000 to 100,000 Daltons. This technique is ideal for the entire process of separating, extracting, and purifying both large-molecule substances and small-molecule chemical compounds.
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