Daltonen Focusing on Separating Membrane Products and Fluid Technology Services.
What conditions need to be met for chemical cleaning of membrane systems
2023/09/08
Suspended solids, colloids, organic matter, microorganisms, and salts precipitated after concentration in the influent will adhere to the membrane surface. After a period of operation, it will cause fouling and blockage of the membrane components, resulting in a decrease in system performance; The performance degradation of the membrane system is mainly manifested by a decrease in water production, a decrease in desalination rate (increased conductivity), an increase in pressure difference between influent and concentrated water, and a change of about 10% in the above indicators. Therefore, it is necessary to start the cleaning program in a timely manner. Only by cleaning can the initial performance be restored.
Daily maintenance of membrane system
2023/09/08
Once the membrane system is put into operation, theoretically it should continue to operate continuously under stable operating conditions. In fact, it is necessary to frequently start and stop the operation of the membrane system. Each start and stop involves a sudden change in system pressure and flow rate, which generates mechanical stress on the membrane components. 因此，应尽量减少系统设备的启动和停止的次数，正常的启动、 停止过程也应该越平稳越好，启动的方法原则上应与首次投运的步骤相同。
Symptoms after membrane system contamination
2023/09/08
Firstly, the conductivity of the water produced in the second stage of the membrane system is abnormal (with an increase in conductivity), resulting in a significant decrease in water production and a gradual increase in pressure. The pressure difference in the second stage also gradually increases. The most significant symptom is a significant decrease in water production.
Installation and disassembly of membrane components
2023/09/08
Preparation before installation of membrane components
Other factors affecting the performance of reverse osmosis and nanofiltration membranes
2023/09/08
The conductivity of the produced water in the membrane system is very sensitive to changes in the inlet temperature. As the water temperature increases, the viscosity of the water molecules passing through the membrane decreases and the diffusion ability increases, resulting in a linear increase in water flux. Increasing the water temperature will lead to a decrease in desalination rate or an increase in salt permeability, mainly because the diffusion rate of salt through the membrane will accelerate due to the increase in temperature.
Empfohlene Neuigkeiten
2026/09/11
Only when every barrier is properly implemented can reverse osmosis membranes shift from "frequent clogging" to "long-cycle stable operation".
Why Do Reverse Osmosis Membranes "Clog"? A Complete Guide to Four Major Types of Membrane Fouling
2026/09/07
Membrane fouling is not a question of "if" but "when, what type, and how to respond." Fouling is inevitable, but it is predictable, controllable, and recoverable.
From Shenzhen to Mexico City: Daltonen Membrane Technology Debuts at Aquatech Mexico 2026
2026/09/04
Aquatech Mexico 2026 has concluded successfully, but Daltonen Membrane Technology will never slow down its pace of going global.
2026/08/17
Without properly matched supporting components, even the highest-quality membranes may underperform.
