A Green Engine for Water Purification

From water-scarce Singapore to complex wastewater environments in Germany, ultrafiltration unit, based on the principle of physical sieving, achieve efficient separation while reducing the consumption of chemical reagents. Their practical value has been fully verified in the wastewater environments of different countries.

What gives ultrafiltration unit their high purification capabilities?

The ultrafiltration membrane built into an ultrafiltration unit typically has a pore size controlled between 0.01 and 0.1 micrometers. This effective filtration precision can accurately remove impurities such as colloidal particles, microorganisms, and large organic molecules from the water, while ensuring that water molecules and small solute molecules can pass through smoothly.

Compared to traditional filtration equipment, it uses pressure difference as its power source, and the separation process is less affected by environmental factors such as temperature and pH. Even in complex industrial fields such as steel, electronics, and food processing, it can maintain stable operating performance.

Structurally, industrial ultrafiltration units generally consist of four core modules: a pretreatment system, membrane modules, a backwashing unit, and an automated control system.

The pretreatment system removes large particulate impurities from the water, preventing them from clogging the subsequent membrane modules. Membrane modules offer various structural options, including hollow fiber and spiral wound types, allowing for flexible combinations to meet specific treatment needs. The backwashing unit significantly extends the lifespan of the membrane material through periodic backwashing. Furthermore, the intelligent automated control system enables real-time monitoring of key operating parameters such as flow rate and pressure.

What are the application values ​​of ultrafiltration unit?

Wastewater from an automotive factory in Munich, Germany, contains complex pollutants such as polymer resins and emulsified oils, placing extremely high demands on the antifouling capabilities of the filtration system. The UF-1020ET ultrafiltration membrane module provided by China North Drainage Equipment Co., Ltd., utilizing uniform pore size membrane fibers manufactured with TIPS technology, achieves a treatment capacity of 2300 cubic meters per day, reducing the frequency of chemical cleaning while consistently ensuring the quality of the reverse osmosis system's feed water.

California in the United States has used ultrafiltration technology to solve the dual problems of drought and pollution. The West Basin Reclaimed Water Plant uses Sino's submerged ultrafiltration membrane modules and a "UF+RO" combined process to treat 45,000 tons of municipal and industrial wastewater every day. Of this, 25,000 tons of water is used for groundwater recharge to prevent seawater intrusion, and 20,000 tons are used as makeup water for high-pressure boilers. The water production is 30%-50% higher than that of traditional processes, which not only ensures the water needs of millions of people, but also protects the coastal ecology.

These cases demonstrate the universal value of industrial ultrafiltration units: improving water reuse rates in water-scarce regions and ensuring stability under highly polluted conditions.

Summarize

Today, with a deepening global consensus on environmental protection, this equipment is being upgraded to better suit the characteristics of wastewater in different regions. For example, high-temperature resistant membrane modules have been developed for high-temperature wastewater in Southeast Asia, and anti-scaling systems have been optimized for high-salinity wastewater in Europe and America.

It is not only an "environmental guardian" for individual countries, but also a common choice for companies worldwide to achieve green production and alleviate water resource pressures.