Product introduction of polytetrafluoroethylene mbr flat membrane
In recent years, with the continuous development of membrane technology, polytetrafluoroethylene mbr flat membrane has gradually become a wastewater Mainstream processing technology.
The aeration membrane-bioreactor was first reported by Cote.P et al. in 1988. It uses a breathable dense membrane (such as a silicone rubber membrane) or a microporous membrane (such as a hydrophobic polymer membrane), in a plate or Hollow fiber components can achieve bubble-free aeration to the bioreactor while maintaining the gas partial pressure below the bubble point. The characteristic of this process is that it improves the contact time and oxygen transfer efficiency, which is beneficial to the control of the aeration process and is not affected by the factors of bubble size and residence time in traditional aeration.
The transverse stretching stage is a key link in controlling the microporous structure and thickness of the polytetrafluoroethylene mbr flat membrane. During the transverse stretching process, each part of the film along the transverse stretching direction is stretched unevenly, and transverse stretching is an uneven stretching process. Compared with both sides of the film, the stretch in the middle part is relatively small. Uneven transverse stretching causes the pore size in the middle region of the film to be small and the porosity to be low in the transverse stretching direction of the film, while the pore sizes on both sides are large and the porosity is also large.
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