Due to excessive and uncontrolled development of water resources in many areas and poor awareness of environmental protection, both surface water and groundwater have been polluted to varying degrees, making the original Water use has become a major issue as the supply of fresh water of good quality is limited, leaving less and less available water. In order to solve this problem well, a solution is now proposed – reclaimed water reuse. This method also uses the material polytetrafluoroethylene hydrophilic filter membrane.
Reclaimed water is to process domestic sewage (or urban sewage) or industrial wastewater through in-depth technical treatment to remove various Impurities are removed from the toxic and harmful substances and certain heavy metal ions that pollute the water body. The water body is colorless, odorless, clear and transparent, and meets or is better than the national miscellaneous water standards (or related regulations). It is widely used in enterprise production or Resident life. It is suitable for watering green spaces, sweeping sanitation, washing roads, stations, platforms, warehouses, landscape water, fire supply water, and water cooling cycles in hotels, restaurants, residential areas, apartment buildings, schools, hospitals, factory areas, government agencies and other units. Replenish water, flush the car with water, etc.
There are three main treatment methods for reclaimed water reuse technology: 1: Biological treatment method: suitable for sewage with high organic content. Generally, biological treatment methods such as activated sludge method, contact oxidation method, and biological turntable are used. It can be used alone or in combination with several biological treatment methods, such as contact oxidation + biological filter; biological filter + activated carbon adsorption; turntable sand filtration and other processes. This process has the advantages of strong adaptability to hydraulic load changes, low sludge production, and easy maintenance and management. 2. Physical and chemical treatment methods: Activated carbon adsorption is a physical method, and coagulation and precipitation technology is a chemical method. Combining these two methods has a very good effect on water quality. 3. Membrane treatment method: Apply reverse osmosis membrane or polytetrafluoroethylene hydrophilic filter membrane for treatment, which is suitable for situations where water quality changes greatly.
The independently developed and produced polytetrafluoroethylene hydrophilic filter membrane is a filter material for reclaimed water reuse, using a special two-way pull The extended preparation process can ensure that all small bacteria and impurities are intercepted, and at the same time it has a large flux, with a pore size of 0.1μm-1μm. The distribution of the membrane pore size is very important. When the pore size of the membrane is small and evenly distributed, the bubble point of the membrane The higher the value, the better the interception effect.
Polytetrafluoroethylene hydrophilic filter membrane has strong hydrophilicity, wide chemical applicability, and good temperature resistance. It can be used in reclaimed water reuse, petrochemical exhaust gas recovery, and waste oil recovery. , heavy metal removal and many other fields. If you are interested, please enter the store for consultation.
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